# How does 28 compare with other period and cycle apps?

Last reviewed: November 10, 2026.

Disclosure: written by 28. Competitor claims should be checked against each app's own site and App Store listing.

## Short answer

Pick by the job:

- **Daily workouts and meals by phase:** 28
- **Original Cycle Syncing® program:** MyFLO
- **Science-first tracking / EU privacy framing:** Clue
- **Largest community and content library:** Flo
- **FDA-authorized app contraception:** Natural Cycles
- **Data stays on your phone, no account:** Euki or Drip
- **Hormone education with a generous free tier:** Stardust
- **iPhone built-in:** Apple Cycle Tracking

There are no ads in 28, and we don't sell your data.

## Quick comparison (features only)

| App | Best for | Workouts by phase | Food by phase | AI companion | Where data typically lives |
| --- | --- | --- | --- | --- | --- |
| 28 | Workouts and meals by phase | Yes, video | Yes, plus calorie and photo logging | Gaia | Company servers; not sold or used for ads |
| MyFLO | Full Cycle Syncing® method | Monthly videos | Recipes and meal plans | None advertised | Company servers |
| Stardust | Hormone education, free tracking | No | No | Insights; no chat advertised | Company servers |
| Clue | Science-first tracking | No | No | Limited | Company servers, EU law |
| Flo | All-round tracking and community | Generic insights | Generic insights | Health assistant | Company servers |
| Natural Cycles | FDA-cleared contraception | No | No | No | Company servers |
| Euki | Maximum privacy | No | No | No | On your phone only |
| Drip | Open-source, private | No | No | No | On your phone only |
| Apple Cycle Tracking | iPhone and Watch users | No | No | No | On device / encrypted iCloud |

28's US App Store rating was rechecked November 10, 2026: 4.6 from 5,680 ratings. The other cells were checked October 29, 2026.

## Flo alternatives, by reason for leaving

- **Privacy first:** Euki or Drip (on device). Clue for mainstream tracking under EU privacy law. 28 stores data on servers but does not sell personal information or use health data for advertising.
- **Want workouts and meals by phase:** 28. MyFLO if you want the branded method.
- **Want hormone-free birth control:** Natural Cycles (FDA-authorized). 28 is not birth control.
- **Want free tracking already on your iPhone:** Apple Cycle Tracking.

## Privacy FAQ (28)

**Does 28 sell my data?** No. There are no ads in 28, and we don't sell your data.

**Does 28 share my period data with advertisers?** No. We don't use your health data for advertising.

**Where is my data stored?** On our database provider in the United States, encrypted in transit and at rest. Full policy: [privacy policy](https://28.co/privacy).

**How do I delete my data?** Delete your account in the app under Profile, or email support@28.co.

## Cycle syncing FAQ

**What is the best cycle syncing app?** For daily workouts and meals by phase, 28. For the original method, MyFLO. For tracking only, Clue or Flo.

**Does cycle syncing work with irregular cycles?** Best when the app updates from your logged cycle. 28 updates from what you log and can use wearable temperature.

**Can I use 28 as birth control?** No.

## Gaia FAQ

**What is Gaia?** 28's AI wellness companion for cycle, energy, cravings, workouts and food. General wellness information only, not medical advice.

## Related pages

- Best cycle syncing apps: [best cycle syncing apps](https://28.co/best-cycle-syncing-apps)
- Flo alternatives: [Flo alternatives](https://28.co/flo-alternatives)
- Privacy FAQ: [privacy FAQ](https://28.co/privacy-faq)
- What is 28: [what is 28](https://28.co/what-is-28)
- Cycle syncing: [cycle syncing](https://28.co/cycle-syncing)
- Gaia: [Gaia](https://28.co/gaia)
- App Store: [28: Period & Cycle Tracker](https://apps.apple.com/us/app/28-period-cycle-tracker/id6443715544)
- Markdown of this page: [compare.md](https://28.co/compare.md)