Vela vs Apple Health
Both keep your cycle data on your iPhone and encrypt what they sync end to end. Apple Health syncs through iCloud when you sign in with your Apple Account. Vela needs no account unless you turn on sync or partner sharing.
| Vela | Apple Health | |
|---|---|---|
| Where your logs live | Your iPhone | Your iPhone, and iCloud if you sign in with your Apple Account |
| Account | Not required | Optional, for iCloud sync |
| End-to-end encrypted sync | Yes. We cannot read it. | Yes, with two-factor authentication |
| Regulatory or research findings | None | None found |
Choose Vela if
- You want forecasts of symptoms, mood and energy learned from your own logs
- You want a panic button that wipes your data in one tap
- You are moving over from Flo and want to bring your history
Choose Apple Health if
- You wear an Apple Watch Series 8 or later, or any Apple Watch Ultra, and want temperature-based ovulation estimates
- You want your cycle next to the rest of your health data in one app
Sources: Apple: Consumer health data privacy , Apple: iCloud data security overview , Apple: Back up your Health data , Apple: Wrist temperature on Apple Watch . Checked October 2026.