Privacy Policy
- Stitch Switch has no accounts, no ads, no analytics and no tracking. It does not use your location or contacts.
- When you agree in the app, the garment photo you choose is sent to Google's Gemini API to read the garment and draw the preview and step pictures. Nothing is sent before you agree.
- Google does not use these photos to train or improve its products. The app asks Google not to store them.
- Your photos, projects and measurements are kept on your iPhone. You can delete them in the app at any time.
- Subscriptions are paid through Apple. RevenueCat keeps your subscription status under a random ID that is not linked to your name or email.
1. Who we are
Stitch Switch ("the app", "we") is made by Fatih Alkan, an independent developer. This policy explains what data the app handles, why, who receives it, how long it is kept and how you can delete it. If you have any question or request, email af.alkanfatih@gmail.com.
2. What the app handles and why
Garment photos you choose
You take a photo with the camera or pick one with the iPhone's photo picker. The app only receives the photo you pick and cannot see the rest of your library. It uses that photo to:
- read the garment: what kind it is, the fabric, the colours and details, and which ideas fit it;
- draw a preview of what the garment could become;
- draw step pictures that show your garment at each sewing step (Pro). For these, the preview image is sent together with your photo.
These three tasks are done by Google's Gemini API (see section 3). Before the first photo is sent, the app shows a screen that names Google and asks for your permission. If you tap "Not now", nothing is sent. You can withdraw this at any time in Settings → Photos and AI by turning off Send photos to Google's Gemini API. After that nothing is sent, and the app asks again before any later photo.
Along with the photo, the app sends only short written instructions about the garment and the chosen idea. It never sends your name, email, location, contacts, device identifiers or measurements.
Measurements and projects
The tape measurement you enter, the pattern pieces, the PDF pattern, your step progress and your saved flips are all worked out and stored on your iPhone. We run no servers of our own, and none of this reaches us.
Subscriptions
Stitch Switch Pro is an auto-renewing subscription bought through Apple. Apple handles the payment, and we never see your card or Apple ID details. To know whether you have Pro, the app uses RevenueCat. RevenueCat receives a random app user ID (not linked to your name or email), the purchase and subscription records Apple provides, and basic technical data that comes with any network request: device model, iOS and app version, store country and IP address.
3. Who receives data
| Recipient | What | Why | How long |
|---|---|---|---|
| Google LLC: Gemini API | The garment photo you chose, the preview image (for step pictures), and short text instructions | To read the garment and create the preview and step pictures you asked for | The app uses Google's paid Gemini API and sends its image requests with storage turned off. Under Google's terms, paid-tier data is not used to improve Google's products. Google logs requests for a limited period only to detect abuse and misuse. Gemini API terms · Google Privacy Policy |
| RevenueCat, Inc. | Random app user ID, purchase and subscription records, basic technical data | To check whether you have Pro and restore purchases | For as long as needed to provide the subscription and meet legal and accounting duties. RevenueCat Privacy Policy |
| Apple Inc. | Payment and subscription management | To process purchases, renewals and refunds | Under Apple's own policy. Apple Privacy Policy |
We only work with providers that are bound to protect your data at least as well as this policy describes, and only for the purposes listed above. We do not sell your data, share it for advertising, or combine it with data from other companies. The app does not use Apple's advertising identifier and does not track you across other apps or websites.
4. What stays on your iPhone
Your photos, previews, step pictures, projects, measurements and settings are stored in the app's private storage on your device. They stay there until you delete them. Like other app data, they may be included in your iPhone backups (iCloud Backup or a computer backup), depending on your own backup settings.
5. Deleting your data and your choices
- One flip: open it and tap Delete this flip. Its photos, preview and step pictures are removed.
- Everything: Settings → Delete all flips and photos. Deleting the app also removes all of its data from your iPhone.
- Stop sending photos to Google: Settings → Photos and AI → turn off Send photos to Google's Gemini API.
- Subscription data: email us and we will ask RevenueCat to delete the records linked to your app user ID. Apple keeps its own purchase records under its own policy. You can manage or cancel your subscription in your Apple ID settings.
- Google: image requests are sent with storage turned off. Google deletes its limited abuse logs by itself. We cannot look up or retrieve them.
6. Your rights
Depending on where you live, including the EU/EEA, the UK and California, you may have the right to access, correct, delete or move your personal data, to object to or limit its use, to withdraw consent at any time, and to complain to your data protection authority. Because we hold no account and no copy of your photos, most of your data is already under your control in the app. For anything else, email af.alkanfatih@gmail.com. We reply within 30 days. We do not sell or "share" personal information as defined by California law.
Legal bases (GDPR): your consent for sending photos to Google, which you can withdraw in Settings; performance of a contract for the subscription; our legitimate interest in keeping the service secure.
7. Children
Stitch Switch is a sewing and upcycling tool and is not directed at children. We do not knowingly collect personal data from children. If you believe a child has used the AI features, email us and we will help remove any related data.
8. Security and international transfers
All data sent by the app travels over encrypted connections (HTTPS/TLS). Google, RevenueCat and Apple may process data in the United States and other countries, with the safeguards those companies provide, such as Standard Contractual Clauses.
9. Changes to this policy
If this policy changes, the new version will be posted on this page with a new effective date. If a change affects what is sent to third parties, the app will tell you before it applies.
10. Contact
Fatih Alkan · af.alkanfatih@gmail.com