# Magnet Crop vs OpenCards

The clearest difference is ratings volume: Magnet Crop at 18 against OpenCards's 1. OpenCards's advantage is rating (5.0 vs 4.8) and iOS requirement (18.6 vs 26.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Magnet Crop sells 1 one-off in-app purchase and OpenCards sells 1 in-app purchase, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

OpenCards holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Magnet Crop has 18 ratings behind it against 1, so its average is the more settled of the two.

Magnet Crop ships an update every 4 weeks, OpenCards fortnightly. The most recent releases landed on October 27, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Magnet Crop | OpenCards |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (18 ratings)](https://appshunter.io/ios/app/magnet-crop/id1547800025/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/opencards/id6760596083/reviews)** |
| Number of ratings | **18** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 57 MB | 2 MB |
| Requires iOS | 26.0 | **18.6** |
| Devices | **iPhone, iPad, Mac, Vision Pro** | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Anton Heestand](https://appshunter.io/developer/1235192207) | [礼 付](https://appshunter.io/developer/1487345625) |

## What reviewers say

### Magnet Crop

[App page](https://appshunter.io/ios/app/magnet-crop/id1547800025)

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.

**Highlights:** 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

**Features:** iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Batch Crop & Stitch | $4.99 | one-time |


### OpenCards

[App page](https://appshunter.io/ios/app/opencards/id6760596083)

Transform your Markdown notes into interactive knowledge cards. Organize, review, and access your information seamlessly across devices. Supports rich formatting, including math equations and code.

**Highlights:** Markdown cards with math and code highlighting, Organize cards into sections, Tags and likes with filtering, Full-screen swipe navigation, Global search, iCloud sync, GitHub Markdown import

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OpenCards Pro | $0.99 | per month |


## Frequently asked questions

### Is Magnet Crop free?

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

### Is OpenCards free?

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

### Which has better reviews, Magnet Crop or OpenCards?

OpenCards is rated higher. Magnet Crop averages 4.8 out of 5 from 18 ratings, while OpenCards averages 5.0 from 1 ratings.

### Do Magnet Crop or OpenCards have ads?

Neither Magnet Crop nor OpenCards shows ads.

### Which is updated more often, Magnet Crop or OpenCards?

Magnet Crop ships an update every 4 weeks, and OpenCards fortnightly. Most recently, Magnet Crop was updated on October 27, 2026 and OpenCards on October 7, 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.*