lilCycles vs Apple Cycle Tracking
Apple's Cycle Tracking is built into the Health app you already have, costs nothing extra, syncs through iCloud encrypted in transit and at rest — end to end with two-factor authentication enabled — and notifies you about irregular, infrequent or prolonged periods and persistent spotting. lilCycles does none of that. It exists for people who want a separate app that keeps app-only data local by default and logs strength training, readiness and mood next to the cycle. For most people, Apple's built-in tracking is enough.
At a glance
| lilCycles | Apple Cycle Tracking | |
|---|---|---|
| Cost | Free download. lilCycles Plus is $7.99 USD weekly, $24.99 USD monthly or $249.99 USD yearly as of August 2026. | Included with iOS, no separate price stated |
| Platforms | iPhone, iPad, Apple Watch and Mac | iPhone, Apple Watch and iPad |
| Sync between devices | None | iCloud, encrypted in transit and at rest, and end to end with two-factor authentication enabled |
| Cycle deviation notifications | Not available | Irregular, infrequent and prolonged periods and persistent spotting |
| Retrospective ovulation estimate | Estimated calendar planning in lilCycles Plus | Yes |
| Strength training, readiness, PRs and injuries | Yes | Not part of Cycle Tracking |
| Mood, energy and journal notes | Yes | Not stated on the Health page |
| Apple Health | Write-only authorization, user initiated | It is the Health app |
| Account required | Not required | Your existing Apple Account |
Every Apple Cycle Tracking entry above is taken from https://www.apple.com/au/ios/health/, checked in August 2026. Where that source does not state something, this table says “not stated” rather than guessing.
Where Apple Cycle Tracking is stronger
This is the part most comparison pages leave out. Apple Cycle Tracking beats lilCycles on the following, and if any of them is your deciding factor you should pick Apple Cycle Tracking.
- It is built in and costs nothing extra.
- Deviation detection: Apple publishes notifications for irregular, infrequent and prolonged periods and persistent spotting. lilCycles does not do this.
- Encrypted iCloud sync across your devices. Apple states health data synced to iCloud is encrypted in transit and at rest, and that with the default two-factor authentication enabled it is encrypted end to end, so not even Apple can access it. lilCycles has no sync at all.
- It works on Apple Watch as a first-class surface.
Where lilCycles is different
- App-only data is kept local by default. There are no accounts, no ads, no analytics or tracking SDKs, and no CloudKit sync.
- Apple Health authorization is write-only and Health writes are user initiated, so lilCycles writes when you ask rather than reading your Health history.
- Strength training, readiness, personal records and injuries are logged next to the cycle, which general cycle apps do not do.
- Optional AI summaries run against an Ollama or OpenAI-compatible endpoint you configure yourself, and you review the exact payload before it is sent.
- Honest limit: there is no sync of any kind, so your history lives on one device unless you export an encrypted archive.
Not medical care. lilCycles is a wellness logging and planning tool. It is not medical care, diagnosis, treatment, contraception, fertility certification, emergency support, legal advice, clinical decision support, or safety-critical guidance.
Frequently asked questions
Do I need lilCycles if my iPhone already tracks my cycle?
Probably not, unless you want strength training, readiness and personal records logged next to your cycle, or you want app-only data kept local with no sync at all. Apple's Cycle Tracking is free, built in and covers the basics well.
Does Apple encrypt my cycle data?
Apple states health data is encrypted on your device and accessible only with your passcode, Touch ID or Face ID, that health data synced to iCloud is encrypted in transit and at rest, and that with the default two-factor authentication enabled it is encrypted end to end so not even Apple can access it.
Does lilCycles sync between my devices?
No. There is no sync of any kind. Your history lives on one device unless you export an encrypted archive yourself.
Will lilCycles tell me if my cycle is irregular?
No. Apple publishes deviation notifications for irregular, infrequent and prolonged periods and persistent spotting. lilCycles does not do this.
Can I use both?
Yes. lilCycles writes to Apple Health when you ask it to, using write-only authorization, so Health remains your central record.
Is lilCycles medical care?
No. It is a wellness logging and planning tool, not medical care, diagnosis, treatment, contraception, fertility certification, emergency support, legal advice, clinical decision support, or safety-critical guidance.
Sources
Facts about Apple Cycle Tracking come from https://www.apple.com/au/ios/health/, read in August 2026. Facts about lilCycles come from its App Store metadata published by lilMONSTER. This page names no version numbers, because release candidates in review are not shipped software.