# Rainbow data vs Pronatal

The clearest difference is update cadence: Rainbow data at every 3 weeks against Pronatal's every 2 months. Rainbow data also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Rainbow data ships an update every 3 weeks, Pronatal every 2 months. Both last shipped on September 10, 2026.

## The numbers

| Metric | Rainbow data | Pronatal |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 29 MB | 63 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Various MB](https://appshunter.io/developer/1540440733) | [Cognitive IVF](https://appshunter.io/developer/1553117549) |

## What reviewers say

### Rainbow data

[App page](https://appshunter.io/ios/app/rainbow-data/id1540440731)

**Features:** macOS Compatibility

**In-app purchases:** none


### Pronatal

[App page](https://appshunter.io/ios/app/pronatal/id6450672082)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Rainbow data free?

Rainbow data is free to download, with no in-app purchases.

### Is Pronatal free?

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

### Do Rainbow data or Pronatal have ads?

Neither Rainbow data nor Pronatal shows ads.

### Which is updated more often, Rainbow data or Pronatal?

Rainbow data ships an update every 3 weeks, and Pronatal every 2 months. Most recently, Rainbow data was updated on September 10, 2026 and Pronatal on September 10, 2026.

---

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