# THOTH ECG vs PostureLens

The clearest difference is in-app purchases: THOTH ECG at none against PostureLens's 2. THOTH ECG also leads on iOS requirement (13.0 vs 17.0). PostureLens's advantage is update cadence (every 3 days vs every 8 months). On price, ads and device support there is nothing between them.

Both are free to download. PostureLens sells 2 in-app purchases, starting at $4.99 per month. THOTH ECG asks for nothing beyond the download.

THOTH ECG ships an update every 8 months, PostureLens every 3 days. The most recent releases landed on October 5, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | THOTH ECG | PostureLens |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/posturelens-posture-coach/id6780947884/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 days** |
| Monetization | — | Freemium |
| Size | 5 MB | 16 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [索思(苏州)医疗科技有限公司](https://appshunter.io/developer/1425728935) | [Nicholas Oganesoff](https://appshunter.io/developer/1880111572) |

## What reviewers say

### THOTH ECG

[App page](https://appshunter.io/ios/app/thoth-ecg/id6472871296)

**Features:** macOS Compatibility

**In-app purchases:** none


### PostureLens

[App page](https://appshunter.io/ios/app/posturelens-posture-coach/id6780947884)

Analyze your posture from a single photo to receive personalized feedback and AI-generated visuals of your corrected alignment. Identify and address issues like forward head and rounded shoulders to improve your overall posture and ease discomfort.

**Highlights:** AI posture analysis from photos, Personalized feedback and fixes, AI-generated ideal posture visuals, Focus on pain points (neck, back), Checks head-to-toe alignment, Goal-setting for appearance or pain relief

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PostureLens Monthly | $4.99 | per month |
| PostureLens Pro Annual | $29.99 | per year |


## Frequently asked questions

### Is THOTH ECG free?

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

### Is PostureLens free?

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

### Do THOTH ECG or PostureLens have ads?

Neither THOTH ECG nor PostureLens shows ads.

### Which is updated more often, THOTH ECG or PostureLens?

THOTH ECG ships an update every 8 months, and PostureLens every 3 days. Most recently, THOTH ECG was updated on October 5, 2026 and PostureLens on October 9, 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.*