# BeTaller vs Contraction Timer

The clearest difference is update cadence: BeTaller at every 5 days against Contraction Timer's every 2 months. BeTaller also leads on iOS requirement (16.4 vs 18.0). Contraction Timer's advantage is device support (3 vs 1). On price, ads and in-app purchases there is nothing between them.

Both are free to download. BeTaller sells 3 in-app purchases, starting at $2.99 per 7 days and Contraction Timer sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

BeTaller ships an update every 5 days, Contraction Timer every 2 months. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | BeTaller | Contraction Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 months |
| Size | 73 MB | 43 MB |
| Requires iOS | **16.4** | 18.0 |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Quang Nguyen](https://appshunter.io/developer/6802461859) | [Yuliia Otmakhova](https://appshunter.io/developer/1896560217) |

## What reviewers say

### BeTaller

[App page](https://appshunter.io/ios/app/betaller-height-predictor/id6802461857)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Yearly | $34.99 | per year |
| Lifetime | $14.99 | one-time |


### Contraction Timer

[App page](https://appshunter.io/ios/app/contraction-timer-birth/id6807493923)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Monthly | $12.99 | per month |


## Frequently asked questions

### Is BeTaller free?

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

### Is Contraction Timer free?

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

### Do BeTaller or Contraction Timer have ads?

Neither BeTaller nor Contraction Timer shows ads.

### Which is updated more often, BeTaller or Contraction Timer?

BeTaller ships an update every 5 days, and Contraction Timer every 2 months. Most recently, BeTaller was updated on October 31, 2026 and Contraction Timer on November 6, 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.*