# Make Babies vs Rainbow data

The clearest difference is update cadence: Rainbow data at every 3 weeks against Make Babies's every 3 months. Make Babies's advantage is device support (4 vs 2) and iOS requirement (9.0 vs 13.0). On price, ads and in-app purchases there is nothing between them.

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

Make Babies ships an update every 3 months, Rainbow data every 3 weeks. The most recent releases landed on October 15, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Make Babies | Rainbow data |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Size | 22 MB | 29 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Big Feet Productions Ltd](https://appshunter.io/developer/403845769) | [Various MB](https://appshunter.io/developer/1540440733) |

## What reviewers say

### Make Babies

[App page](https://appshunter.io/ios/app/make-babies-the-connected-fertility-tracker/id961027248)

**Features:** macOS Compatibility

**In-app purchases:** none


### Rainbow data

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Make Babies free?

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

### Is Rainbow data free?

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

### Do Make Babies or Rainbow data have ads?

Neither Make Babies nor Rainbow data shows ads.

### Which is updated more often, Make Babies or Rainbow data?

Make Babies ships an update every 3 months, and Rainbow data every 3 weeks. Most recently, Make Babies was updated on October 15, 2026 and Rainbow data on September 28, 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.*