# Stray Scanner vs Tapproval

The clearest difference is update cadence: Tapproval at every 2 days against Stray Scanner's every 6 months. Tapproval also leads on device support (4 vs 1) and iOS requirement (15.0 vs 18.6). On price, ads and in-app purchases there is nothing between them.

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

Stray Scanner ships an update every 6 months, Tapproval every 2 days. The most recent releases landed on October 13, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Stray Scanner | Tapproval |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/stray-scanner/id1557051662/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 1 MB | 3 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Kenneth Blomqvist](https://appshunter.io/developer/1557051664) | [Marc Dines](https://appshunter.io/developer/6801761713) |

## What reviewers say

### Stray Scanner

[App page](https://appshunter.io/ios/app/stray-scanner/id1557051662)

Capture color, depth, and IMU data using your device's LiDAR sensor. Export these datasets to your computer for machine learning and dense mapping projects. Streamline the process of collecting RGB-D data without complex calibration.

**Highlights:** Record color images, Capture depth frames, Export IMU measurements, Estimate camera position, Access camera calibration matrix, Transfer datasets to desktop

**In-app purchases:** none


### Tapproval

[App page](https://appshunter.io/ios/app/tapproval/id6805869018)

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Stray Scanner free?

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

### Is Tapproval free?

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

### Do Stray Scanner or Tapproval have ads?

Neither Stray Scanner nor Tapproval shows ads.

### Which is updated more often, Stray Scanner or Tapproval?

Stray Scanner ships an update every 6 months, and Tapproval every 2 days. Most recently, Stray Scanner was updated on October 13, 2026 and Tapproval on October 14, 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.*