Terms of Use

Effective date: October 15, 2026 · Version 1.0

By downloading and using İlk Isırık, you accept the terms below. If you don't accept them, please don't use the app.

1. Parties and scope

These terms are between you, the user of the İlk Isırık app, and Valeria Şengün (individual developer, "we"), who develops and publishes the app under the Rexx Studio name. You must be at least 18 years old to use the app. The app is for adults responsible for the care of babies and young children.

If you downloaded the app from the App Store, these terms apply in addition to Apple's Standard Licensed Application End User License Agreement. For how data is used, see the Privacy Policy.

2. What does the app do?

İlk Isırık is a guide that organizes starting solid foods (complementary feeding) month by month, from 6 months onward. It offers a food plan, allergen tracking, recipes, menus, height and weight tracking, and articles. The app's suggestions are calculated from the cited sources and the records you enter.

The free version includes the basic features; Premium unlocks more content. The app shows which feature is in which version. We decide which features we offer and for how long, and we may update and change the content.

3. Medical disclaimer

• The information in İlk Isırık is general information. It is not a substitute for medical advice, diagnosis or treatment, and it does not replace the assessment of a physician, dietitian or other health professional.
• Every baby is different. If you have a concern about allergies, reflux, severe eczema, weight gain or development, talk to your pediatrician before starting a new food.
• The app cannot prevent or treat an allergic reaction and cannot make a definitive diagnosis. If you see serious signs such as swelling of the lips, face or tongue, difficulty breathing, wheezing, paleness or lethargy, call 112 (or your local emergency number) without looking at the app.
• The numbers, percentile curves and suggestions in the app are based on guidelines and on the data you enter. On their own, they are not a verdict or a decision.
• Guidelines can change over time. The information is compiled with care, but we cannot guarantee that it is always current or complete.

4. Your data and backups

The app has no account and no server; your information stays only on your phone. Backing it up is therefore your responsibility. If you lose or change your phone, delete the app or use "Delete all data", we cannot bring your information back unless you have a backup. You can make a backup in Settings → Data and backup (Ayarlar → Veriler ve yedek).

5. Premium and payment

Premium is purchased inside the app; payment and billing are handled by the Apple App Store or Google Play. Whatever plans the store offers (weekly, monthly, yearly or a one-time "lifetime" purchase), you see their prices and durations on screen before you buy. Prices vary by country and store.

Auto-renewable subscriptions

• Payment is charged to your Apple ID (iPhone) or Google Play account (Android) when you confirm the purchase.
• The subscription renews automatically unless it is canceled at least 24 hours before the end of the current period. The renewal fee is charged to your account within the 24 hours before the period ends.
• You can manage and cancel your subscription in the store at any time: on iPhone, Settings → [your name] → Subscriptions; on Android, Google Play → Payments & subscriptions → Subscriptions. You can also reach this page from Settings → Premium in the app.
• If you cancel, you keep Premium until the end of the paid period you are in. No refund is given for the remaining part of a paid period; this does not limit your statutory rights or the store's refund rules.

Free trial

If the store offers one and you are eligible, the plan starts with a free trial. If you don't cancel during the trial, you are charged for the plan you chose when the trial ends. Any unused part of a free trial is forfeited if you purchase a subscription during the trial. Under store rules, a trial may be offered only once per person.

One-time purchase

If a one-time plan such as "lifetime" is offered, it is paid once and does not renew. It applies for as long as we maintain the app or Premium (see Termination).

Refunds and restoring purchases

Refund and payment dispute requests go through the store you bought from, under its rules (for Apple, reportaproblem.apple.com; for Google Play, your Play Store account). If you changed your phone or reinstalled the app, you can get Premium back on the same Apple or Google account with "Restore purchases" on the payment screen or in Settings → Premium.

6. Rules of use

• You may use the app only for personal, non-commercial purposes and in line with the law.
• Copying, reverse engineering, reproducing and redistributing, selling or renting the app or its content, or using it in another app, is prohibited.
• You may not try to bypass purchase or subscription checks or unlock Premium without authorization.
• You may not use the app in a way that disrupts or overloads the app, the stores or third-party services.

7. Intellectual property

The app's design, software, texts, recipes, menus, the Lokma character and app-specific images belong to us or are included with permission, and they are protected by copyright and related laws. We grant you only a non-transferable, non-exclusive right to use the app for your personal use.

The app uses open-source software such as Expo and React Native, Microsoft Fluent Emoji (MIT) and the Fraunces and Nunito Sans typefaces (SIL OFL 1.1). The full list is in the app under Settings → Legal → Licenses. These components are subject to their own licenses. The personal records you enter belong to you.

8. Sources and third parties

The app refers to guidelines published by organizations such as WHO, TÜBER, the Turkish Ministry of Health and the AAP, and links to these sources. These organizations are not affiliated with us and do not endorse the app. We are not responsible for the content or privacy practices of linked sites. The subscription service runs through RevenueCat, and payment through Apple or Google; their own terms and policies apply.

9. Limitation of liability

The app is provided "as is". We do not guarantee that it will run without interruption or errors, or that the content will suit every situation. To the extent permitted by applicable mandatory law, we cannot be held liable for indirect damages arising from your use of, or inability to use, the app, or for the consequences of decisions you make based on the general information in the app. This clause does not limit our liability for intent and gross negligence, or the rights you have as a consumer that cannot be waived by contract.

10. Termination

You can stop using the app at any time by deleting it; your subscription must be canceled separately in the store. We reserve the right to restrict access in case of use that breaches these terms. If we decide to permanently discontinue the app or a feature, we will try to announce it reasonably in advance; if there is a paid period, we will offer a solution in line with the store's rules and the law.

11. Changes

We may update these terms from time to time. The current version is published on this page, and the effective date changes. If there is a significant change, we will also announce it in the app. Continuing to use the app after a change means you accept the updated terms; if you don't accept them, you can stop using the app.

12. Governing law

These terms are governed by the laws of the Republic of Türkiye. For transactions you make as a consumer, in case of a dispute you can apply to the competent Consumer Arbitration Committees and Consumer Courts under Turkish consumer law. If you live in another country, your mandatory consumer rights there remain unaffected.

13. Contact

You can send questions about these terms to support@rexxstudio.app. For help, see Support; for data, see the Privacy Policy. These terms are also available in Turkish; if the two versions differ, the Turkish version prevails.