Studio Studio Apps Cycle Cipher
Cycle Cipher
Private Cycle Tracking
A private cycle tracker that works offline, with no account, developer sync, ads or tracking.
- Category
- Health & Fitness
- Account
- None
- Network
- Optional Apple or Google Play services
About Cycle Cipher
Cycle Cipher is a period and cycle tracker that keeps your reproductive-health records under your control. There is no account to create, no developer-operated sync or health-data server, and no analytics, advertising or tracking SDK.
Period dates, flow, symptoms, moods, sexual activity, basal temperature, notes and health events stay on your device, and the app calculates cycle predictions there. Core tracking works offline. Optional tips and rating or review actions use Apple's services on iPhone and iPad, and Google Play's on Android. The app does not upload your health data to the studio.
What you get
- Core tracking works offlineHealth logging and local data tools need no connection. Apple services on iPhone and iPad, and Google Play on Android, handle only tips and rating or review actions.
- No online accountNo sign-up, login, cloud account or account-based sync.
Common questions
Is Cycle Cipher free?
Yes. The entire app is free to download and use on iPhone, iPad and Android. There is no subscription, paywall, paid tier or feature unlock.
What do the optional tips do?
Tips support continued development but unlock nothing and do not change how the app works. In the U.S., the four tips cost $0.99, $1.99, $2.99 and $5.99 on both the App Store and Google Play; Apple and Google Play show local prices in other countries. Tips are repeatable consumable in-app purchases. Apple processes them on iPhone and iPad, and Google Play processes them on Android. They are not charitable donations.
Why did the app ask whether I wanted to leave a tip?
After a few launches, Cycle Cipher may show one optional invitation. Dismiss it to continue using every feature for free. The invitation is not a gate, and the tip options remain available later in Settings if you choose to use them.
Does Cycle Cipher work without an internet connection?
Yes. Logging, predictions, the app lock, import and export work offline. On iPhone and iPad, StoreKit can contact Apple to load or process optional tips. On Android, Cycle Cipher has no internet permission, and the Google Play Store app handles tips and ratings. Rating, review, website, privacy and support actions open Apple, Google Play or your browser for those functions alone. Cycle Cipher sends no health data to Stack Trace Studios.
How do I move my data to a new phone?
Use Settings to create an encrypted JSON export, then import that file on the new device; keep the passphrase somewhere safe because the studio cannot recover it. iPhone, iPad and Android use the same export format, so the same file also moves your records between them. An encrypted iPhone or iCloud device backup may also carry the iPhone app's data according to your Apple backup settings. Android backup and device-to-device transfer never include Cycle Cipher's data, so on Android you move it with an export.
How do I request a refund for a tip?
On iPhone and iPad, Apple processes the tips and controls refunds: go to reportaproblem.apple.com, sign in with your Apple Account, and choose the purchase. Stack Trace Studios cannot issue an App Store refund. On Android, Google Play processes the tips: within 48 hours of a purchase, you can request a refund from Google Play; after 48 hours, email the studio with the order number from your Google Play receipt.
Cycle Cipher support · Privacy policy · Email support
Cycle Cipher
A private cycle tracker that works offline, with no account, developer sync, ads or tracking.