# BabySync vs Peishi

The clearest difference is in-app purchases: Peishi at none against BabySync's 2. Peishi also leads on iOS requirement (15.0 vs 18.0). BabySync's advantage is ads (none vs shown) and update cadence (every 3 days vs every 9 days). On price and device support there is nothing between them.

Both are free to download. BabySync sells 2 in-app purchases, starting at $1.99 per month. Peishi asks for nothing beyond the download.

BabySync ships an update every 3 days, Peishi every 9 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | BabySync | Peishi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Every 9 days |
| Size | 14 MB | 58 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 12+ | 9+ |
| Developer | [SERKAN AZERI](https://appshunter.io/developer/1879738514) | [Jaro Gee](https://appshunter.io/developer/1893225481) |

## What reviewers say

### BabySync

[App page](https://appshunter.io/ios/app/babysync-pregnancy-tracker/id6761660965)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BabySync Premium Monthly | $1.99 | per month |
| BabySync Premium Yearly | $9.99 | per year |


### Peishi

[App page](https://appshunter.io/ios/app/peishi/id6762171457)

**In-app purchases:** none


## Frequently asked questions

### Is BabySync free?

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

### Is Peishi free?

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

### Do BabySync or Peishi have ads?

Peishi shows ads; BabySync does not.

### Which is updated more often, BabySync or Peishi?

BabySync ships an update every 3 days, and Peishi every 9 days. Most recently, BabySync was updated on October 25, 2026 and Peishi on October 25, 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.*