# 柠檬胎动 vs MedVault AI

The clearest difference is ads: MedVault AI at none against 柠檬胎动's shown. MedVault AI also leads on update cadence (weekly vs every 2 weeks). 柠檬胎动's advantage is iOS requirement (13.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. 柠檬胎动 sells 9 one-off in-app purchases and MedVault AI sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

柠檬胎动 ships an update every 2 weeks, MedVault AI weekly. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 柠檬胎动 | MedVault AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (104 ratings)](https://appshunter.io/ios/app/id1452864064/reviews)** | — |
| Number of ratings | **104** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 141 MB | 6 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 12+ |
| Developer | [Chengdu Ningmengyoumeng Science & Technology Co., Ltd](https://appshunter.io/developer/1452864063) | [金龙 彭](https://appshunter.io/developer/1664079579) |

## What reviewers say

### 柠檬胎动

[App page](https://appshunter.io/ios/app/id1452864064)

This app helps pregnant mothers track fetal movements and contractions, providing essential tools for monitoring pregnancy health. It also serves as a postnatal growth and feeding log for newborns. Features include reminders, historical data, and family sharing.

**Highlights:** Fetal movement counting, Contraction tracking, Postnatal baby growth log, Feeding and sleep records, Historical data statistics, Family sharing, Fetal movement reminders

**Features:** Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 打赏3元 | $0.99 | one-time |
| 打赏6元 | $0.99 | one-time |
| 打赏8元 | $0.99 | one-time |
| 打赏12元 | $1.99 | one-time |
| 打赏18元 | $2.99 | one-time |
| 宝宝礼盒-18 | $2.99 | one-time |
| 打赏25元 | $3.99 | one-time |
| 宝宝礼盒 | $3.99 | one-time |
| 打赏50元 | $6.99 | one-time |


### MedVault AI

[App page](https://appshunter.io/ios/app/medvault-ai/id6782105664)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MedVault Pro Monthly | $2.99 | per month |
| MedVault Pro Yearly | $19.99 | per year |


## Frequently asked questions

### Is 柠檬胎动 free?

柠檬胎动 is free to download, with in-app purchases available.

### Is MedVault AI free?

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

### Do 柠檬胎动 or MedVault AI have ads?

柠檬胎动 shows ads; MedVault AI does not.

### Which is updated more often, 柠檬胎动 or MedVault AI?

柠檬胎动 ships an update every 2 weeks, and MedVault AI weekly. Most recently, 柠檬胎动 was updated on October 29, 2026 and MedVault AI on October 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.*