# Height Check vs ThoughtTrail

The clearest difference is in-app purchases: ThoughtTrail at none against Height Check's 2. On price, update cadence, ads and device support there is nothing between them.

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

Height Check ships an update every 11 days, ThoughtTrail every 9 days. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Height Check | ThoughtTrail |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/height-check/id6758106513/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 11 days | **Every 9 days** |
| Monetization | Free | — |
| Size | 45 MB | 6 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Ni Yan](https://appshunter.io/developer/1037384760) | [贝蓓 范](https://appshunter.io/developer/1870879110) |

## What reviewers say

### Height Check

[App page](https://appshunter.io/ios/app/height-check/id6758106513)

Transform your compatible iPhone or iPad into a height measuring tool. Point the camera at a person, and the app instantly displays their height in meters or imperial units. Save your measurements for future reference without needing any extra equipment.

**Highlights:** Instant height measurement, Camera-based detection, Supports meters and imperial units, Save and reference measurements, No extra tools required

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Monthly Usage | $1.99 | per month |
| Lifetime Usage | $9.99 | one-time |


### ThoughtTrail

[App page](https://appshunter.io/ios/app/thoughttrail-less-anxiety/id6768587110)

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

**In-app purchases:** none


## Frequently asked questions

### Is Height Check free?

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

### Is ThoughtTrail free?

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

### Do Height Check or ThoughtTrail have ads?

Neither Height Check nor ThoughtTrail shows ads.

### Which is updated more often, Height Check or ThoughtTrail?

Height Check ships an update every 11 days, and ThoughtTrail every 9 days. Most recently, Height Check was updated on October 31, 2026 and ThoughtTrail 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.*