# Reverse Star vs KidNote

The clearest difference is update cadence: KidNote at every 3 weeks against Reverse Star's every 3 months. KidNote also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.4). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Reverse Star sells 2 in-app purchases, starting at $5.99 per 7 days and KidNote sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Reverse Star ships an update every 3 months, KidNote every 3 weeks. The most recent releases landed on October 30, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Reverse Star | KidNote |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Size | 12 MB | 120 MB |
| Requires iOS | 17.4 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Vladimir Gerlak](https://appshunter.io/developer/1804432176) | [Tomohito Kii](https://appshunter.io/developer/1689523321) |

## What reviewers say

### Reverse Star

[App page](https://appshunter.io/ios/app/reverse-star/id6754610808)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reverse Star - Weekly | $5.99 | per 7 days |
| Reverse Star - Annual | $19.99 | per year |


### KidNote

[App page](https://appshunter.io/ios/app/kidnote-baby-growth-diary/id6760557366)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $4.99 | per month |
| Yearly Premium | $34.99 | per year |
| Lifetime Premium | $89.99 | one-time |


## Frequently asked questions

### Is Reverse Star free?

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

### Is KidNote free?

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

### Do Reverse Star or KidNote have ads?

Both Reverse Star and KidNote show ads.

### Which is updated more often, Reverse Star or KidNote?

Reverse Star ships an update every 3 months, and KidNote every 3 weeks. Most recently, Reverse Star was updated on October 30, 2026 and KidNote on November 9, 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.*