Magnet Crop vs Test Strip Scanner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Magnet Crop
This app uses AI to automatically crop screenshots, detecting edges, frames, and text baselines. It allows for uniform padding with rounded corners and offers pixel-level zoom. Batch cropping is available for images with identical resolutions.
- AI-powered auto cropping
- Edge, frame, and text baseline detection
- Uniform padding with rounded corners
- Pixel-level zoom
- Batch cropping for similar resolutions
- Multiple aspect ratios
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Crop screenshots magnetically. Auto crop with AI. The app detects edges, frames and text base lines in screenshots. Add uniform padding with rounded corners to the crop region. Zoom in to pixel level detail, powered by SwiftUI shaders. Various aspect ratios are available. Batch cropping is available for images with the same resolution.
Test Strip Scanner
Easily read water test strip results by taking a photo. View and export charts of chemical readings over time. Ideal for those with visual impairments or limited patience.
- Scan test strip results with photos
- Save and view readings
- Export charts of chemical trends
- Supports multiple popular water test strips
- No account signup required
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Test Strip Scanner makes it easy to read results from some of the most popular water test strips on the market. No signing up for an account, no data being funneled into a large company, no annoying notifications, just a handy little utility for water analysis. Test Strip Scanner lets you scan and save the readings of your strip by simply taking a photo. After that you can view & export charts of each chemical reading over your desired time frame. Test Strip Scanner is great for those with poor eyesight, colorblindness, and low patience. Test Strip Scanner supports the following strips: Water - JNW Pool & Spa 7in1 - Easy Test 7in1 - Aquachek Select Connect - HTH 6-way - Baracuda 6in1 And more to come in the future!
Screenshots
Verdict
The clearest difference is review sentiment: Magnet Crop at 100% against Test Strip Scanner's 50%. Magnet Crop also leads on rating (4.8 vs 3.2) and device support (4 vs 2). Test Strip Scanner's advantage is in-app purchases (none vs 1) and update cadence (every 5 days vs every 4 weeks). On price, ratings volume and ads 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
Both are free to download. Magnet Crop sells 1 one-off in-app purchase. Test Strip Scanner asks for nothing beyond the download.
Magnet Crop holds the better App Store score, 4.8 against 3.2. Both are backed by a comparable volume of ratings — 16 and 9 respectively. Written reviews point the same way: 100% of Magnet Crop's written reviews are positive against 50% of Test Strip Scanner's.
Magnet Crop ships an update every 4 weeks, Test Strip Scanner every 5 days. The most recent releases landed on September 22, 2026 and September 23, 2026 respectively.
| Parameter | Magnet Crop | Test Strip Scanner |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (16 ratings) — better | 3.2 (9 ratings) |
| Positive reviews | 100.0% of reviews — better | 50.0% of reviews |
| Number of ratings | 16 — better | 9 |
| Update frequency | Every 4 weeks | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, Mac, Vision Pro — better | iPhone, iPad |
| Requires iOS | 18.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 20 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Anton Heestand | Quentin Reiser |
Customer experience
Magnet Crop
Test Strip Scanner
In-app purchases
Magnet Crop
- Batch Cropping$1.99
Test Strip Scanner
No in-app purchases
Questions
Is Magnet Crop free?
Is Test Strip Scanner free?
Which has better reviews, Magnet Crop or Test Strip Scanner?
Do Magnet Crop or Test Strip Scanner have ads?
Which is updated more often, Magnet Crop or Test Strip Scanner?
Other comparisons
