lilCycles vs Flo
Flo is far broader: it publishes dedicated pregnancy and perimenopause modes, more than 70 symptom options, and an Anonymous Mode that does not link your name, email or personal identifiers. lilCycles is deliberately narrower — app-only data is kept local by default with no accounts, no ads, no analytics and no CloudKit sync, and it logs strength training, readiness and personal records next to the cycle. Choose Flo for life-stage breadth. Choose lilCycles if local-by-default storage and training data are what you actually need.
At a glance
| lilCycles | Flo | |
|---|---|---|
| Platforms | iPhone, iPad, Apple Watch and Mac | iPhone (iOS 16.0 or later), Apple Watch (watchOS 9.0 or later) and Apple Vision Pro (visionOS 1.0 or later) |
| Pregnancy mode | Not available | Yes |
| Perimenopause support | Not available | Yes |
| Symptom vocabulary | Flow, spotting, pain, symptoms, mood valence, energy and tags | More than 70 symptom options |
| Strength training, readiness, PRs and injuries | Yes | Not listed |
| Account required | Not required | Anonymous Mode does not link your name, email or personal identifiers |
| Analytics or tracking SDKs | None | Not stated on the App Store listing |
| Sync between devices | None | Not stated on the App Store listing |
| Apple Health | Write-only authorization, user initiated | Not stated on the App Store listing |
| Apple Vision Pro | No | Yes |
| Price | Free download. lilCycles Plus is $7.99 USD weekly, $24.99 USD monthly or $249.99 USD yearly as of August 2026. | Free with in-app purchases. As published on the App Store listing in August 2026: Flo Premium $1.99–$59.99, Pregnancy Tracker $49.99, Ovulation & Health $11.49–$14.99, Birth Control Reminder $43.99. |
Every Flo entry above is taken from https://apps.apple.com/us/app/flo-period-pregnancy-tracker/id1038369065, checked in August 2026. Where that source does not state something, this table says “not stated” rather than guessing.
Where Flo is stronger
This is the part most comparison pages leave out. Flo beats lilCycles on the following, and if any of them is your deciding factor you should pick Flo.
- Life-stage breadth. Flo publishes dedicated pregnancy and perimenopause modes. lilCycles has neither.
- More than 70 symptom options, a larger logging vocabulary than lilCycles offers.
- A large in-app content library and a very large user base.
- Apple Vision Pro support.
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
Is lilCycles a replacement for Flo?
Not if you need pregnancy or perimenopause support, which Flo publishes and lilCycles does not have. lilCycles covers cycle, mood, symptoms and strength training with data kept local by default.
Does lilCycles require an account?
No. There are no accounts, no ads, no analytics or tracking SDKs, no CloudKit sync and no developer-operated cloud AI endpoint.
Does Flo require an account?
Flo publishes an Anonymous Mode, described on its App Store listing as using the Flo period tracker without linking your name, email, or personal identifiers.
What does each cost?
lilCycles is a free download; lilCycles Plus is $7.99 USD weekly, $24.99 USD monthly or $249.99 USD yearly as of August 2026. Flo is free with in-app purchases listed on its App Store page in August 2026 as Flo Premium $1.99 to $59.99, Pregnancy Tracker $49.99, Ovulation and Health $11.49 to $14.99, and Birth Control Reminder $43.99.
Does lilCycles read my Apple Health data?
No. Apple Health authorization is write-only and Health writes are user initiated.
Is either app medical care?
lilCycles is not. 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 Flo come from https://apps.apple.com/us/app/flo-period-pregnancy-tracker/id1038369065, 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.