# TrackSub vs Sleep Tracker & Cycle

The clearest difference is in-app purchases: TrackSub at none against Sleep Tracker & Cycle's 3. Sleep Tracker & Cycle's advantage is update cadence (every 10 days vs every 4 months) and iOS requirement (15.1 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Sleep Tracker & Cycle sells 3 in-app purchases, starting at $4.99 per month. TrackSub asks for nothing beyond the download.

TrackSub ships an update every 4 months, Sleep Tracker & Cycle every 10 days. The most recent releases landed on September 10, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | TrackSub | Sleep Tracker & Cycle |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 10 days** |
| Size | 2 MB | 60 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sezai Enes YILDIZHAN](https://appshunter.io/developer/1798806321) | [Muhammet Alperen CINAR](https://appshunter.io/developer/1783817938) |

## What reviewers say

### TrackSub

[App page](https://appshunter.io/ios/app/tracksub/id6742515312)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sleep Tracker & Cycle

[App page](https://appshunter.io/ios/app/sleep-tracker-and-cycle-dirim/id6756657677)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Dirim Premium | $4.99 | per month |
| Dirim Premium (Yearly - Best Value) | $19.99 | per year |
| Dirim Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is TrackSub free?

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

### Is Sleep Tracker & Cycle free?

Sleep Tracker & Cycle is free to download, with in-app purchases available.

### Do TrackSub or Sleep Tracker & Cycle have ads?

Neither TrackSub nor Sleep Tracker & Cycle shows ads.

### Which is updated more often, TrackSub or Sleep Tracker & Cycle?

TrackSub ships an update every 4 months, and Sleep Tracker & Cycle every 10 days. Most recently, TrackSub was updated on September 10, 2026 and Sleep Tracker & Cycle on September 15, 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.*