# Contraction Timer vs Symtom Log

The clearest difference is in-app purchases: Symtom Log at none against Contraction Timer's 3. Symtom Log also leads on ads (none vs shown) and device support (3 vs 1). Contraction Timer's advantage is update cadence (every 4 days vs every 2 weeks). On price there is nothing between them.

Both are free to download. Contraction Timer sells 3 in-app purchases, starting at $2.99 per 7 days. Symtom Log asks for nothing beyond the download.

Contraction Timer ships an update every 4 days, Symtom Log every 2 weeks. The most recent releases landed on October 9, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Contraction Timer | Symtom Log |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Every 2 weeks |
| Size | 19 MB | 35 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SULTAN KARABACAK](https://appshunter.io/developer/1870698891) | [Luc Pham Van](https://appshunter.io/developer/1544588097) |

## What reviewers say

### Contraction Timer

[App page](https://appshunter.io/ios/app/contraction-timer-tracker-9m/id6759169180)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Contraction Timer Weekly | $2.99 | per 7 days |
| Contraction Timer Monthly | $9.99 | per month |
| Contraction Timer Annual | $29.99 | per year |


### Symtom Log

[App page](https://appshunter.io/ios/app/symtom-log/id6779874487)

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

**In-app purchases:** none


## Frequently asked questions

### Is Contraction Timer free?

Contraction Timer is free to download, with in-app purchases available.

### Is Symtom Log free?

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

### Do Contraction Timer or Symtom Log have ads?

Contraction Timer shows ads; Symtom Log does not.

### Which is updated more often, Contraction Timer or Symtom Log?

Contraction Timer ships an update every 4 days, and Symtom Log every 2 weeks. Most recently, Contraction Timer was updated on October 9, 2026 and Symtom Log on October 10, 2026.

---

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