# MyBioCycle vs Check In

The clearest difference is update cadence: Check In at every 4 days against MyBioCycle's every 7 months. Check In also leads on iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

MyBioCycle ships an update every 7 months, Check In every 4 days. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | MyBioCycle | Check In |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/mybiocycle/id1551432328/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 1 MB | 56 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alan Thomson](https://appshunter.io/developer/1454978660) | [Gabriel Hesthaven](https://appshunter.io/developer/1645516113) |

## What reviewers say

### MyBioCycle

[App page](https://appshunter.io/ios/app/mybiocycle/id1551432328)

Chart your emotional, intellectual, physical, and intuitive cycles based on your birth date and time. Track up to 12 profiles to see how you sync with friends and family. Visualize your cycles for up to a year with color-coded sine waves.

**Highlights:** Biorhythm cycle charting, Emotional, Intellectual, Physical, Intuitive cycles, Track up to 12 profiles, Sync with friends and family, Year-ahead cycle visualization, Color-coded sine waves

**Features:** macOS Compatibility

**In-app purchases:** none


### Check In

[App page](https://appshunter.io/ios/app/check-in-timer/id6792538551)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is MyBioCycle free?

MyBioCycle is free to download, with no in-app purchases.

### Is Check In free?

Check In is free to download, with no in-app purchases.

### Do MyBioCycle or Check In have ads?

Neither MyBioCycle nor Check In shows ads.

### Which is updated more often, MyBioCycle or Check In?

MyBioCycle ships an update every 7 months, and Check In every 4 days. Most recently, MyBioCycle was updated on October 24, 2026 and Check In on October 29, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*