# Birth Timer vs Solid

The clearest difference is in-app purchases: Birth Timer at none against Solid's 3. Birth Timer also leads on update cadence (every 3 weeks vs every 5 weeks) and iOS requirement (17.4 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Solid sells 3 in-app purchases, starting at $3.99 per 7 days. Birth Timer asks for nothing beyond the download.

Birth Timer ships an update every 3 weeks, Solid every 5 weeks. The most recent releases landed on October 10, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Birth Timer | Solid |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Size | 5 MB | 6 MB |
| Requires iOS | **17.4** | 26.0 |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Midnite Compile GmbH](https://appshunter.io/developer/1850145762) | [Shamil Tursynbaev](https://appshunter.io/developer/1815495350) |

## What reviewers say

### Birth Timer

[App page](https://appshunter.io/ios/app/birth-timer/id6772555600)

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none


### Solid

[App page](https://appshunter.io/ios/app/solid-baby-food-tracker/id6794577094)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plus | $3.99 | per 7 days |
| Yearly Plus Offer | $19.99 | per year |
| Yearly Plus | $34.99 | per year |


## Frequently asked questions

### Is Birth Timer free?

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

### Is Solid free?

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

### Do Birth Timer or Solid have ads?

Neither Birth Timer nor Solid shows ads.

### Which is updated more often, Birth Timer or Solid?

Birth Timer ships an update every 3 weeks, and Solid every 5 weeks. Most recently, Birth Timer was updated on October 10, 2026 and Solid on October 11, 2026.

---

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