# Baby Tracker vs Simby

The clearest difference is ads: Simby at none against Baby Tracker's shown. Simby also leads on update cadence (every 3 weeks vs every 3 months) and iOS requirement (15.1 vs 18.2). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Baby Tracker sells 3 in-app purchases, starting at $6.99 per month and Simby sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Baby Tracker ships an update every 3 months, Simby every 3 weeks. Both last shipped on November 5, 2026.

## The numbers

| Metric | Baby Tracker | Simby |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Size | 49 MB | 68 MB |
| Requires iOS | 18.2 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Evgeny Molofeev](https://appshunter.io/developer/1302041114) | [VESELA NIKOLAEVA MARINOVA](https://appshunter.io/developer/6786623623) |

## What reviewers say

### Baby Tracker

[App page](https://appshunter.io/ios/app/baby-tracker-sleepactivities/id6762359826)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $6.99 | per month |
| Annual Premium | $39.99 | per year |
| Annual Premium With Trial | $39.99 | per year |


### Simby

[App page](https://appshunter.io/ios/app/simby/id6786623621)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Simby Premium Monthly | $4.99 | per month |
| Simby Premium Annual | $39.99 | per year |


## Frequently asked questions

### Is Baby Tracker free?

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

### Is Simby free?

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

### Do Baby Tracker or Simby have ads?

Baby Tracker shows ads; Simby does not.

### Which is updated more often, Baby Tracker or Simby?

Baby Tracker ships an update every 3 months, and Simby every 3 weeks. Most recently, Baby Tracker was updated on November 5, 2026 and Simby on November 5, 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.*