# 40 Weeks vs Lunera

The clearest difference is in-app purchases: 40 Weeks at none against Lunera's 1. Lunera's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Lunera sells 1 one-off in-app purchase. 40 Weeks asks for nothing beyond the download.

40 Weeks ships an update every 2 months, Lunera every 3 weeks. The most recent releases landed on October 15, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | 40 Weeks | Lunera |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (2 ratings)](https://appshunter.io/ios/app/lunera-contraction-timer/id6754467800/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 1 MB | 38 MB |
| Requires iOS | 18.6 | **18.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Matthias Barann](https://appshunter.io/developer/1053199626) | [Luka Hristic Grubor](https://appshunter.io/developer/1614618866) |

## What reviewers say

### 40 Weeks

[App page](https://appshunter.io/ios/app/40-weeks/id1256297453)

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

**In-app purchases:** none


### Lunera

[App page](https://appshunter.io/ios/app/lunera-contraction-timer/id6754467800)

Track your pregnancy week by week with detailed growth information and visualizations. Time contractions with real-time stats and helpful insights. Offers a one-time purchase for advanced features like AI insights and PDF reports.

**Highlights:** Week-by-week baby growth information, Contraction timing with real-time stats, AI-powered personalized insights, Customizable tracking methods, Home and lock screen widgets, Siri voice command integration, PDF reports for healthcare providers

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lunera PRO | $9.99 | one-time |


## Frequently asked questions

### Is 40 Weeks free?

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

### Is Lunera free?

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

### Do 40 Weeks or Lunera have ads?

Neither 40 Weeks nor Lunera shows ads.

### Which is updated more often, 40 Weeks or Lunera?

40 Weeks ships an update every 2 months, and Lunera every 3 weeks. Most recently, 40 Weeks was updated on October 15, 2026 and Lunera on October 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.*