Comparison

Stray Scanner vs Tapproval

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Stray Scanner

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
Read full description

Note: requires a device with LiDAR. The iPad Pro, iPhone 12 Pro or iPhone 12 Pro Max currently have LiDAR sensors on them. Stray Scanner allows you to record color, depth and IMU datasets and export them to your desktop computer. For machine learning and dense mapping applications, you need a dataset to work with. Stray Scanner allows you to collect RGB-D datasets with your iPhone. The recorded datasets contain: - color images - depth frames from the LiDAR sensor - depth confidence maps - camera position estimates for each frame - camera calibration matrix - IMU measurements Once recorded, the datasets can easily be moved to your desktop computer by connecting your device with a Lightning cable and accessing the files through Finder. Put your iPhone's LiDAR scanner to good use. No more fumbling around calibrating and configuring depth sensors. Shoot datasets straight from your iPhone.

About

Tapproval

Features
Read full description

Tapproval is a remote control for Claude Code on your Apple Watch. When the agent working on your computer asks permission — run this command? change this file? — the question lands on your wrist, and one tap answers it. No phone out of the pocket, no walk back to the desk. WHAT IT DOES • Approve or deny with one tap — your computer obeys instantly • Answer real multiple-choice questions, with the same options as on your desktop • Follow sessions live, grouped by what they need: which one needs you, which one is working, and the project each belongs to • Read the conversation the way your phone shows it, with bold, lists and plans laid out, and reply from the watch: "Proceed", "Run tests", "/code-review", or anything you dictate • See your day: what was handled without you, and what you decided NOTHING TO CONFIGURE The watch finds your computer by itself — on your home Wi-Fi, or away from home through a private travel address. No account, no third-party server: your prompts and conversations never leave your own machines. WHAT YOU NEED A computer running Claude Code (any Mac or Linux machine) with the free, open-source helper installed — one command, then forget it. Curious first? The built-in demo shows the whole flow without any setup. Your first 100 answers are free. After that, one purchase of $5 unlocks unlimited answers for good. There is no subscription and no account. Reading sessions and the day's activity stays free, and a prompt you don't answer from the wrist still appears on your computer as usual, so nothing is ever blocked. An optional $1 coffee for the developer is there too.

Screenshots

Stray Scanner4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

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.

Scorecard3 real differences · 7 level
Stray Scanner versus Tapproval: the parameters behind the verdict, then further details
ParameterStray ScannerTapproval
PriceFreeFree
Rating5.0 (5 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings5 — better—
Update frequencyEvery 6 monthsEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone, iPad, iPod, Apple Watch — better
Requires iOS18.615.0 — better
Further details — not scored
Size1 MB3 MB
Age rating4+4+
DeveloperKenneth BlomqvistMarc Dines

In-app purchases

None

Stray Scanner

No in-app purchases

None

Tapproval

No in-app purchases

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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