# 健康追踪仪 vs 橡皮擦

The clearest difference is in-app purchases: 橡皮擦 at none against 健康追踪仪's 3. 健康追踪仪's advantage is update cadence (every 6 days vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 健康追踪仪 sells 3 in-app purchases, starting at $9.99 per 7 days. 橡皮擦 asks for nothing beyond the download.

健康追踪仪 ships an update every 6 days, 橡皮擦 every 3 months. The most recent releases landed on October 31, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 健康追踪仪 | 橡皮擦 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 50 MB | 19 MB |
| Requires iOS | **14.3** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [钰 陈](https://appshunter.io/developer/1784860109) | [高辉 张](https://appshunter.io/developer/1824381468) |

## What reviewers say

### 健康追踪仪

[App page](https://appshunter.io/ios/app/and-ai/id6759021247)

Monitor your heart rate using your phone's camera and flashlight. Access AI-powered health knowledge and track vital metrics like blood pressure and blood sugar. Visualize your health trends with clear, automatic charts.

**Highlights:** Heart rate detection via phone camera, AI health knowledge Q&A, Daily heart rate recording, Blood pressure tracking, Blood sugar logging, Data visualization charts

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| health_tracking | $9.99 | per 7 days |
| health_tracking | $22.99 | per month |
| health_tracking | $39.99 | per 3 months |


### 橡皮擦

[App page](https://appshunter.io/ios/app/ai/id6761612446)

**In-app purchases:** none


## Frequently asked questions

### Is 健康追踪仪 free?

健康追踪仪 is free to download, with in-app purchases available.

### Is 橡皮擦 free?

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

### Do 健康追踪仪 or 橡皮擦 have ads?

Neither 健康追踪仪 nor 橡皮擦 shows ads.

### Which is updated more often, 健康追踪仪 or 橡皮擦?

健康追踪仪 ships an update every 6 days, and 橡皮擦 every 3 months. Most recently, 健康追踪仪 was updated on October 31, 2026 and 橡皮擦 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.*