Terms and Conditions

1. Introduction

Tunz offers international eSIM packages that provide almost worldwide internet access without incurring roaming charges. Our focus is on providing the user with maximum flexibility. That’s why, through our App, you can not only purchase data packages (“Data Packages”) and voice plans (“Voice Plans”) but also resell unused data volume on our marketplace (“Marketplace”).

Our Data Packages and Voice Plans (“Services”) are paid for in Tunz credits (“Credits”) or via other offered payment methods in the Tunz App. Tunz Credits are an internal reward-point system that may be used exclusively within the Tunz App to purchase eligible Services. Tunz Credits are not cryptocurrency, electronic money, virtual assets, securities or financial instruments. They have no cash value, cannot be redeemed for money, cannot be transferred to third parties or external wallets, and cannot be traded or exchanged outside the Tunz App.

We regularly enable users to unlock free Credits. Any earned Credits may be used to purchase Data Packages or Voice Plans but may not be withdrawn.

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2. Migration from DENT Tokens

Effective 30 July 2026, DT One Germany has discontinued support for DENT tokens within the Tunz App.

Existing eligible DENT balances were automatically converted into Tunz Credits using the conversion ratio previously communicated to users.

Prior to the migration, users were provided with advance notice and an opportunity to withdraw eligible DENT tokens, subject to applicable verification requirements.

Following completion of the migration:

• DENT tokens are no longer supported by the Tunz App;
• deposits and withdrawals are no longer available;
• blockchain functionality has been discontinued; and
• all converted balances are governed exclusively by these Terms and Conditions applicable to Tunz Credits.

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3. Information About Us

tunz.io, app.tunz.io and the associated mobile applications are operated, and the Services are provided by DT One Germany GmbH. DT One Germany GmbH is a private limited company incorporated in Germany at the local court 07745 Jena under the commercial register number HRB 521466 and registered offices at Löbdergraben 29, 07743 Jena, Germany. DT One Germany is a registered business name of DT One Germany GmbH.

You can contact DT One Germany GmbH by email to support@tunz.io.

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4. Tunz-Account and general use of our platform

a. Registration, user ID and Password‍

In order to use our services, you have to sign up through our app. To set up an account (“Account”) you must register on the App. You can do this by filling out the appropriate information on the registration screen on the App or by following the instructions from third-party interfaces like Google and Apple. It is your obligation to give truthful, accurate and complete information in the registration form. Failure to fulfill this obligation may prevent us from providing our services properly. Additionally, it may prevent as from accurately assigning transfers to and from your Account.

If you register with your email address, you will need to set your personal password. Make sure to remember it well and do not share it with third parties. Tunz will never ask you for your password outside of the login process within the App. Upon registration we will send a confirmation via email to the provided address and you will be given an Account, which allows you to use our services.

If you are under 18 years of age, you must obtain a parent/guardian's consent prior to using the App. If you are an employee of a company or other entity or are acting on behalf of a company or entity, you must be authorized to accept the terms and conditions of use on behalf of that employer, company or entity.

Each Account is assigned with a specific “User ID”. If you registered with your email address (or a Google or Apple account details), the email address (or a from Google or Apple provided email address) will be your user ID. If your Account was created before December 2021 you can continue to log in with your mobile number. Each User ID must be used by a single user and is not transferable. Any additional account opening without our knowledge and authorization may result in the suspension and/or termination of your account(s).

To use the App, you must authenticate yourself with your user credentials (User ID and password). If you have lost or forgotten your password, you can request a new one online at any time. All you need is your User ID and access to the email address or mobile number registered with Tunz.

You are responsible for keeping your access credentials confidential. Please notify us without undue delay if you suspect that an unauthorized person has gained knowledge of your access credentials for the App. We shall not be liable for any damages resulting from a culpably omitted or delayed notification to the extent that such damages are attributable to your contributory negligence. We are entitled, in the event of a specific suspicion of misuse, e.g. due to unusual collection or redemption activities that are typically associated with fraudulent activities, to suspend your Account for redemptions and to transmit your data to an affected partner, as well as to law enforcement and other authorities. See also the "Privacy Notice."‍

b. Necessary update of user information ‍

You can always correct or update your personal information given in the registration process in your Account.

If you registered before 2021 and are using your phone number as your user ID, should you need to change your registered mobile phone number, please contact Customer Care to reinstate access to your Account (see “Customer Care & Contact Information” below). This Agreement will apply to the use of Services. ‍

c. Hardware requirements and future updates‍

The equipment and devices necessary to access the App shall be provided and be maintained by you solely at your expense. If you access the App through a mobile device, you may be charged by your mobile service provider for internet access on your device.

You can download the App compatible with your operating system from the App Store (Apple) or the Google Play Store (Android). DT One Germany reserves the right to modify equipment and software requirements as is necessary for it to continue or improve the provision of Services through the mobile applications and to comply with § 327f German Civil Code (“BGB”). You are solely responsible for ensuring that you download any subsequent updates to the mobile applications from the relevant app store.‍

d. Maintenance and Availability

‍From time to time it may be necessary or desirable for security reasons, maintenance (whether emergency or planned), upgrades or other reasons to:

• make the App or Services unavailable to you; and/or
• delay implementation of any new Services; and/or
• withdraw, replace or reissue your password; and/or
• change authentication procedures or processes for accessing the App or the Services while using reasonable endeavors to minimize any inconvenience caused.

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Where DT One Germany changes authentication procedures for accessing the Apps or the Services therein, notwithstanding any other terms of this Agreement, DT One Germany may introduce these procedures by giving instructions to you via the App in respect of which such procedures are being introduced. ‍

e. Notices ‍

Save where expressly provided, any notice required to be given by DT One Germany to you in connection with the subject matter of our App and our Services may be given through the App or by email. ‍

f. Your Contribution ‍

Where you send DT One Germany any feedback, suggestions, ideas or other materials in relation to or via the App or the Services provided, you agree that DT One Germany can use, reproduce, publish, modify, adapt and transmit the communication mentioned above to others free of charge and without restriction, subject to DT One Germany’s terms as stated in the “Your Data” section. ‍

g. Intellectual Property Rights

You are granted the non-exclusive, non-transferable right to use the App within the scope of the Services for private, non-commercial purposes.

The App and its content are protected by copyright, trademark and other industrial property rights. We or our licensors are entitled to these rights.

The following in particular are prohibited without our prior written consent

• Commercial use of the app
• Editing, redesigning or otherwise modifying the app
• Reproduction of the App beyond the scope required for contractual use

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Your rights under Sections 44a et seq. of the German Copyright Act (UrhG), in particular to make backup copies and to correct errors, remain unaffected.

The “Tunz” trademark and the associated logo as well as the “DT One Germany” Trademark and all associated logo are protected trademarks of our company. The same applies to the domain www.tunz.io.

Please report suspected infringements to support@tunz.io.‍

h. Termination of your Account‍

DT One Germany may terminate your Account and withdraw the use of the App and/or the Services provided through it:

(i) upon reasonable prior written notice to you;  

(ii) immediately upon breach by you of any of the Terms and Conditions or where there exist serious grounds for termination.

(iii) if it reasonably believes that any of the Services have been used negligently, illegally or fraudulently by you, or by a third party as a result of your negligence or recklessness.

You may terminate or cancel your Account at any time without reason by giving DT One Germany notice via the App or alternatively written notice to that effect, but without prejudice to your liability for any outstanding indebtedness on any Account or otherwise prior to the date of termination. If you exercise your right of termination, DT One Germany will not refund any unused  credits, Data Packages or Voice Plans on your Account, unless otherwise required under mandatory applicable law.

If you are not using the Tunz App for more than one year, we will terminate your account after giving previous notice via email.

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5. Tunz Services and Cost

After registration, you may want to take advantage of the Services:

The Services shall only be provided to you by DT One Germany and its partners in respect of the mobile operators available on the App which are subject to change and availability. ‍

a. Data Packages with Tunz eSIM ‍

We offer Data Packages to connect to the internet from several countries by installing a free Tunz eSIM on your device. The Tunz eSIM is embedded in your Data Package without the need of a physical SIM card.

In order to get a Data Package, you must first verify by checking in the App, the specifications of your device and with your current carrier, that your device is a supported device for the installation of the eSIM. Installed eSIM only work in supported countries. While we are happy to provide you with a list of supported countries, this list is only based on our current knowledge. It is not in our power to ensure at all times that this list is up to date. Changes may also occur in the future, which could result in certain countries no longer being supported. Please note that even if you have a supported device, it may happen that after you purchase of a Data Package your installed Tunz eSIM gets locked in some countries due to reasons beyond our control.

You may choose a Data Package and place an order by paying with your Credits or via other offered payment methods in the Tunz App. You will be then requested to set up your Tunz eSIM profile on your device.

Please note that when using your Tunz eSIM you will be on roaming which may affect your device’s behaviour (e.g. the settings of your device or higher battery drain).

Your Tunz eSIM data will expire according to what is described on the Data Package. The expiration time will start counting down at the moment of the purchase. Any unused portion of data shall be forfeited by us without reimbursement.

Please note that a Tunz eSIM belongs to the user and is associated with the user identification information provided by you when registering with the Tunz App. If you therefore sell or give away your device you must ensure that you erase your eSIM first to avoid that other individuals use your eSIM in your own name.

b. Tunz Voice Plans

We offer Voice Plans to make voice calls and call your family and friends around the world in selected countries by using your Credits.

You will need to have a working internet connection. Quality of the call will not depend on us but on the mobile operator and telecommunication systems in each country. Some countries are not supported for Tunz calls. You will be able to verify in our list of supported countries if your country is amongst them.

You will be able to know for each designated country the number of hours/minutes available with your Tunz Voice Plan and at the end of your voice call you will be able to see the amount of voice hours/minutes remaining balance.

Please note that voice calls under Tunz Voice Plans cannot be used for emergency calls. ‍

c. Tunz Marketplace ‍

You might have the option to top-up your data balance or to sell any data left in the Marketplace.

You may buy and sell Data Packages by using the Tunz Marketplace platform. You may also buy or sell these Data Packages by using Credits or other payment methods. You may place orders at any time at a price set by you and within permissible market parameters (the parameters are set by Tunz).

The contractual partner of every sale is DT One Germany. Whether DT One Germany accepts an offer to purchase data packages depends on whether DT One Germany has found a subsequent buyer. Therefore, Tunz cannot guarantee that you will be able to trade your Credits and mobile data on the open market at any particular price or time, when using the Marketplace.

You can verify your transactions which will allow you to see the date, amount, and transaction details of each of your purchased and sold Data Packages in the Marketplace in your transaction history of your App. You can verify your balance of Credits and mobile data. For mobile data you can verify your remaining data volume of Data Packages available and their expiry date. For Tunz Credits you will be able to check the total balance in Credits including bonus, rewards, and Credits obtained from selling mobile data on the Marketplace. You can verify your pending offers of mobile data on the Marketplace. You will be able to check the time of placement of the order, the expiry date of the mobile data and the amount of Credits that you will earn. You can cancel your pending offers, without incurring any cancellation fee, always provided that an offer has not been fully executed.

Restriction on Marketplace‍

Data Packages obtained as join-in bonuses, Rewards, or placed in orders shall not qualify for selling in the Marketplace.‍

d. Credits

Getting Credits

To provide the Services across different countries, the App works with Tunz Credits (“Credits”). These credits can then be used on the App to, for example, purchase Data Packages and Tunz Voice Plans from the App. Credits do not have a fixed value in terms of voice minutes or data volume.  Users may purchase or sell eligible Data Packages through the Marketplace using Tunz Credits where such functionality is available.

Earn Free Credits and Data Packages

You will be given the opportunity to earn free Credits or Data Packages (“Rewards”) by unlocking daily rewards. To unlock the Rewards you may be asked to install applications, watch promotional videos, and take a survey or other tasks that Tunz may introduce from time to time. Reward offers expire; therefore you must unlock them in time before they become unavailable.

The Rewards earned may only be used by you in the Tunz App. Credits or Data Packages claimed will be automatically added to your Tunz account.

Please note that some offers for Rewards may not be accessible in some countries therefore if you move to another country, Rewards may no longer be accessible for you.

You are reminded of Tunz's policy of one account per person only. In the event that Tunz will verify beyond reasonable doubt that you have opened multiple accounts with us in order to earn multiple Rewards, we have the right, at our discretion, to deactivate the Reward and/or suspend and/or terminate your account(s).

Promotions

From time to time, DT One Germany will run promotions on the App. These promotions will be subject to additional terms and conditions and such terms and conditions (including the closing date for any promotion) will be displayed clearly on the App. As a marketing incentive, Tunz can assign welcome tokens to users balance, for example after a successful registration.‍

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Tunz Credits

Tunz Credits may only be earned, granted, purchased (where offered), or used within the Tunz App.

Tunz Credits:

• cannot be deposited;
• cannot be withdrawn;
• cannot be transferred;
• cannot be exchanged into cryptocurrency;
• cannot be redeemed for fiat currency;
• cannot be sold;
• cannot be pledged or assigned.

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Affiliate Program‍

By joining the Affiliate program, you accept the following terms and conditions of the program. The affiliate program allows you to earn commissions by promoting the Tunz app to your audience.

The commission of each sponsor purchase would be available for in-app use sometime after the transaction. The default time is two weeks, but it may change according to fraud regulations in the future. At that moment, your earnings will be available for use within theTunz app.

The Affiliate Program may be discontinued at any time. If this happens, there will be a three-month notice period before the service stops. If the Affiliate Program is discontinued, affiliates will no longer receive commissions from their sponsor's purchases. However, any Credits earned from the Affiliate Program will not be affected by its discontinuation. You can still use your Credits within the Tunz app.

As an affiliate, you are expected to conduct yourself in a professional manner when promoting the app. Any fraudulent behavior will not be tolerated. Tunz reserves the right to terminate your participation in the affiliate program and block the Tunz accounts that engage in dishonest behaviors without notice. Upon termination, any unpaid commissions will be forfeited.

Your statutory warranty rights for the technical usability of the affiliate program in accordance with the contractual agreements remain unaffected.

Our liability for damages resulting from injury to life, limb or health is unlimited. The same applies to damage caused intentionally or by gross negligence, in the event of breaches of warranty and for claims under the Product Liability Act. In the event of a slightly negligent breach of material contractual obligations, our liability shall be limited to the foreseeable damage typical of the contract. Essential contractual obligations are those whose fulfilment enables the proper implementation of the affiliate program and on whose compliance you may regularly rely. Otherwise, our liability for slightly negligent breaches of non-essential contractual obligations is excluded.

We strive for a high average availability of the affiliate program, but cannot guarantee uninterrupted availability. Restrictions or interruptions may be necessary in particular for maintenance, security or capacity reasons.‍

e. Third Party Services and Information ‍

Some of the products and services which may be offered for sale, through the App or through other services that DT One Germany may offer to you may be submitted, created, provided or developed by third parties.

‍f. Limitation on Credits

Tunz Credits are provided solely for use within the Tunz App and may be modified, discontinued or replaced by DT One Germany in accordance with these Terms and applicable mandatory law. Tunz Credits do not constitute deposits, stored monetary value, investment products or property rights.

6. Variations of the Agreement

DT One Germany reserves the right to amend or supplement these Terms and Conditions with your consent, particularly if necessary to ensure the smooth and secure operation of the App. Any such changes to these Terms and Conditions will be communicated to you in advance by email or within the App. They will be deemed accepted unless you expressly object within four weeks of receiving the notice. You will be explicitly reminded of this right to object in the notification.

If you object to the amended Terms and Conditions,

• you have the right to terminate the agreement without notice for cause, and
• DT One Germany has the right to terminate the agreement without notice for cause, provided such termination is necessary for DT One Germany and does not unfairly disadvantage you contrary to good faith.

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DT One Germany will inform you once again about these potential consequences of rejecting the amended Terms and Conditions of use when announcing the respective changes.

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7. Links to other Apps

Some pages on the Apps may contain hypertext links to Apps not created or maintained by DT One Germany GmbH. You are hereby adequately notified and forewarned that when entering other Apps via such hypertext links, the terms and conditions, benefits, and privacy protections afforded by the Apps will not be applicable and you must make yourself aware of and become compliant with the requirements of those individual independently maintained Apps or webpages. DT One Germany is not liable in any way for the content, availability or use of such linked Apps and you agree that you may access such links entirely at your own risk.

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8. No Third Party Rights and No Assignment

‍You agree that you have entered into this Agreement for your own benefit and not for the benefit of another person.

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9. Limited Liability

Insofar as these Terms and Conditions do not limit liability in a more specific provision, the following shall apply: In cases of intent and gross negligence, including that of its legal representatives and agents, DT One Germany is liable in accordance with statutory provisions. DT One Germany is also liable under statutory provisions for damages culpably caused by injury to life, body, or health, for damages caused by the absence of a guaranteed quality, and in cases of fraudulently concealed defects.

For material and financial damages caused by slight negligence on the part of DT One Germany, its legal representatives, or agents, liability is limited to the breach of an essential contractual obligation, and the amount of liability is capped at the foreseeable, contract-typical damage at the time the contract was concluded. Essential contractual obligations are those that are necessary for the proper execution of the contract and on whose compliance you may regularly rely.

Liability under the Product Liability Act remains unaffected.

In all other respects, the liability of DT One Germany is excluded.

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10. Governing Law

All contracts, agreements and other legal relationships between you and DT One Germany, including these Terms and Conditions, are subject exclusively to the law of the Federal Republic of Germany, excluding the UN Convention on Contracts for the International Sale of Goods (CISG), without prejudice to any mandatory conflict of laws and applicable consumer protection provisions.

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