# vhSpirometer vs AI ECG Patch

The clearest difference is update cadence: vhSpirometer at every 2 months against AI ECG Patch's every 8 months. AI ECG Patch's advantage is iOS requirement (12.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

vhSpirometer ships an update every 2 months, AI ECG Patch every 8 months. The most recent releases landed on September 18, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | vhSpirometer | AI ECG Patch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/ai-ecg-patch/id6475814864/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 8 months |
| Monetization | — | Free |
| Size | 11 MB | 17 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Vales & Hills BioMedical Tech. Ltd](https://appshunter.io/developer/472601851) | [Shenzhen Benevolence Medical Sci&Tech Co.,Ltd.](https://appshunter.io/developer/1453807967) |

## What reviewers say

### vhSpirometer

[App page](https://appshunter.io/ios/app/vhspirometer/id6444332192)

**Features:** macOS Compatibility

**In-app purchases:** none


### AI ECG Patch

[App page](https://appshunter.io/ios/app/ai-ecg-patch/id6475814864)

This medical app works with a single-lead ECG patch to provide quick and easy heart monitoring. It offers various measurement modes, real-time waveform viewing, and generates AI-powered reports with detailed analysis to assist in cardiovascular diagnosis.

**Highlights:** Single-lead ECG patch compatibility, Multiple short-term and Holter measurement modes, Real-time ECG and heart rate waveform viewing, Multi-state status reminders, AI-generated, detailed ECG analysis reports, Device binding options

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is vhSpirometer free?

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

### Is AI ECG Patch free?

AI ECG Patch is free to download, with no in-app purchases.

### Do vhSpirometer or AI ECG Patch have ads?

Neither vhSpirometer nor AI ECG Patch shows ads.

### Which is updated more often, vhSpirometer or AI ECG Patch?

vhSpirometer ships an update every 2 months, and AI ECG Patch every 8 months. Most recently, vhSpirometer was updated on September 18, 2026 and AI ECG Patch on September 10, 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.*