# Contraction Timer & Tracker IO vs Wavesong

Contraction Timer & Tracker IO and Wavesong are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Contraction Timer & Tracker IO sells 2 in-app purchases, starting at $1.99 per 7 days and Wavesong sells 2 in-app purchases, starting at $12.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Contraction Timer & Tracker IO | Wavesong |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (86 ratings)](https://appshunter.io/ios/app/contraction-timer-and-tracker-io/id1633196366/reviews)** | — |
| Number of ratings | **86** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 42 MB | 30 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, Apple Watch |
| Age rating | 12+ | 12+ |
| Developer | [ATN Marketing SRL](https://appshunter.io/developer/910577403) | [Jan Daniel Naftanaila](https://appshunter.io/developer/1527881421) |

## What reviewers say

### Contraction Timer & Tracker IO

[App page](https://appshunter.io/ios/app/contraction-timer-and-tracker-io/id1633196366)

This app helps expectant mothers track labor contractions by measuring duration, frequency, and interval. It detects labor phases and alerts users when it's time to go to the hospital. Features include one-tap tracking, Lock Screen widgets, and dark mode.

**Highlights:** One-tap contraction timing, Duration, frequency, and interval calculation, Labor phase detection, Hospital alerts based on 5-1-1 rule, Lock Screen widget, Dark mode and offline support

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Contraction Tracker Timer Weekly | $1.99 | per 7 days |
| Contraction Tracker & Timer + | $4.99 | one-time |


### Wavesong

[App page](https://appshunter.io/ios/app/wavesong-contraction-timer/id6804792912)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $12.99 | per 7 days |
| Lifetime | $79.99 | one-time |


## Frequently asked questions

### Is Contraction Timer & Tracker IO free?

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

### Is Wavesong free?

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

### Do Contraction Timer & Tracker IO or Wavesong have ads?

Neither Contraction Timer & Tracker IO nor Wavesong shows ads.

---

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