Privacy Policy

Operator and scope

This policy applies to Synka Life, an iOS and Android app provided by Synka Team. The website contains legal and support information; it does not offer a web version of the planning service.

Contact: support@synka-team.com

Life plan information

Age, household details, income, assets, housing and education costs, pension assumptions, entered conditions, results, saved plans, comparison data, and edit history are calculated in the app and stored in device storage. The app has no account or life plan server operated by us, and these details are not sent to our servers.

You can create, share, and restore backup files yourself. Reward unlock state is not included in backups. Data without a backup may be lost if a device is lost, damaged, erased, or the app is deleted.

Purchases and RevenueCat

Pro purchases and restores use in-app purchases through the App Store on iOS and Google Play on Android. The RevenueCat SDK is used to check purchases, restores, and Pro access; it processes an App User ID and purchase status information. The stores process payment details.

Settings can show your RevenueCat App User ID for support. When you start a support email in the app, the draft may contain the ID actually retrieved, OS, app version, build number, and Free/Pro status. The email is not sent automatically and you can edit it before sending.

Ads and consent

Optional rewarded ads use the Google Mobile Ads SDK (AdMob). The SDK loads an ad after you choose an action to view one. Depending on its settings and your device, the SDK may process an IP address, identifiers such as an advertising ID, device and app information, ad interactions, and diagnostic information. Google's User Messaging Platform (UMP) handles ad consent information where required. See Google's policies for details.

Life plan inputs and results are not sent as ad targeting data. Reward unlocks are limited to the app's current session and are separate from purchase access.

Exchange rates

If you choose a display currency other than Japanese yen, a reference rate may be retrieved from the Frankfurter API. Rate requests contain currency codes; they do not contain income, assets, household details, saved plans, or results. A rate applied to a plan is saved for that plan's display and does not change its base-currency amounts when rates are fetched later.

PR links and external services

If you open a PR or affiliate link, you leave the app for an external site. That provider's terms and privacy policy apply there; we do not control how the provider handles information. Life plan inputs and results are not attached to the link URL. We may receive a referral commission.

Storage, deletion, and contact

Saved data stays on your device and can be exported or restored using the app's backup feature. If you delete data from the device or app, it may not be recoverable without a backup. Third-party services for purchases, ads, and exchange rates handle information under their own policies.

For questions about this policy, email support@synka-team.com. Financial details and saved plans are not automatically attached to support emails.

Japanese financial model

Calculations use a model for Japan. Foreign-currency display is a reference conversion using an exchange rate. It does not model local salaries, living costs, taxes, or pension systems outside Japan. Results are estimates based on entered conditions and assumptions, not guarantees or individual financial, tax, or legal advice.

Changes

We may update this policy when the service or its SDKs change. We will announce important changes in the app or on the website. Established: May 11, 2026