Tamor Privacy Policy

Application
Tamor(iOS / iPadOS, com.marcottlab.tamor)
Operator
Tadashi Sugie
Address
Hachioji, Tokyo, Japan
Effective date
2026-09-22
Contact
tamor@sapp.sakura.ne.jp

This policy explains how information is handled in “Tamor”, an iPhone and iPad app provided by Tadashi Sugie (“we”, “us”), and on these support pages. Because who processes what, and where it goes, differs by context, it is described in four parts.

  1. The app itself (on-device processing)
  2. In-app purchases (Apple / RevenueCat)
  3. This support site and contacting us
  4. The TestFlight beta (if it applies to you)

1. The app itself (on-device processing)

The app has no registration, login or social features. It never asks for your name, email address, phone number, address, date of birth, location, contacts, photos, camera, microphone or health data. It shows no advertising and contains no advertising or behavioural analytics SDK. It does not carry out “tracking” as defined by App Tracking Transparency.

The following is stored only on your device and never sent to our servers.

InformationWhere it is storedPurpose
Gems you have earned, the result of each run (gem, depth, grade, elapsed time, mistakes, date), ring layout, titles and personal bests JSON files in the app’s own container (Application Support/Tamor/save-v1.json and a backup copy) Keeping your progress and collection
An unfinished Crusher Room run A file in the same folder (crusher-timed-checkpoint.json) Resuming after the app is relaunched
Settings such as rendering quality, and a random identifier the app generates on the device The app’s preferences (UserDefaults) Keeping your settings; telling which device a recorded result came from

The random identifier is generated on your device and is not linked to your name, email address or Apple Account. Version 1.0 does not transmit it anywhere.

Motion sensor: the app uses motion sensor information on your device to adjust the jewel ring to the way you tilt your device. This information is processed only on your device and is never stored or transmitted. You can disable this effect in the app’s settings; it is also disabled automatically when iOS “Reduce Motion” is on.

Deletion: all of the above is removed from the device when you delete the app, and we hold no copy of it. Before deleting, export anything you want to keep with Settings → “Saving & Restoring Gems” → “Export Save Data”. The exported file stays under your control and is not sent to us.

2. In-app purchases (Apple / RevenueCat)

Purchases are processed through Apple’s in-app purchase system. To validate a purchase, determine your unlock status and restore purchases, we use the SDK of RevenueCat, Inc. (United States), purchases-ios 5.90.2. The following is sent to RevenueCat’s servers when you open the purchase screen, buy or restore, and when the app launches or returns to the foreground.

InformationDetailsRecipientPurpose
Purchase and transaction data App Store receipt, product ID, purchase and restore status, the time the app was last used RevenueCat (payment itself is processed by Apple) Validating purchases, determining the unlock, restoring, preventing abuse
Anonymous App User ID A random ID generated by the RevenueCat SDK. We do not set an ID of our own RevenueCat Managing purchase state
Vendor identifier (IDFV) An identifier Apple issues per device for apps from the same developer; the SDK adds it to request headers RevenueCat Operating the purchase infrastructure
Device and app technical data Device model, OS version, app version, build number and bundle ID, preferred languages, App Store country/region, SDK version, whether the request is in the sandbox RevenueCat Operating the purchase infrastructure, compatibility, troubleshooting
IP address Received by the server as part of ordinary internet communication RevenueCat Delivering the request, security

3. This support site and contacting us

These support pages are pre-rendered static HTML files served from an Ubuntu server on Sakura Internet’s cloud. That infrastructure serves the pages; it is not where the app’s gems or play records are stored.

Personal information across the website as a whole is also covered by the company privacy policy, which also applies if you use the contact form on that site.

4. The TestFlight beta (if it applies to you)

TestFlight is Apple’s beta distribution service. If you take part as a tester, the following differs from the public release.

5. Purposes of use

We use the information above only for:

  1. providing in-app purchases, validating them, determining the unlock and restoring purchases;
  2. preventing fraudulent purchases and abusive form submissions;
  3. replying to inquiries and making necessary contact;
  4. investigating defects and improving quality, including beta feedback;
  5. aggregating sales figures.

We do not use it for advertising, profiling, or sale to third parties.

We do not use the information for any purpose other than those listed above. We do not repurpose it for other services or for other activities of ours. If the purposes change, we will revise this policy and publish the revision on this page beforehand.

6. Third parties, processors and processing outside Japan

Except as required by law, we do not provide the information to third parties. We engage RevenueCat, Inc. as a processor for in-app purchases and SAKURA internet Inc. for hosting this website. Because RevenueCat stores data in the United States, the information in section 2 is processed outside Japan. Payment processing and the operation of the App Store and TestFlight are carried out by Apple under its own responsibility.

7. Retention and deletion

8. Access, correction and suspension of use

Requests for disclosure, correction, suspension of use or erasure under Japan’s Act on the Protection of Personal Information or other applicable law can be made by email to tamor@sapp.sakura.ne.jp. We do not charge a fee unless the law provides otherwise. Because the app has no account, we hold none of your on-device data; such a request can therefore only cover our record of your inquiry and the purchase data tied to the anonymous ID.

9. Children

The app is not directed specifically at children and is not offered in Apple’s Kids category. Regardless of age, it never asks for identifying information such as a name or email address. In-app purchases can be restricted by a parent or guardian using Screen Time on the device. If a child has sent us information by mistake, please contact us at the address above.

10. Changes to this policy

We may revise this policy as necessary, and revisions take effect when posted on this page. For significant changes — for example if a future version adds cloud storage — we will announce the effective date on this page in advance.

11. Contact

For questions about this policy, please email tamor@sapp.sakura.ne.jp.