# LearnStrike vs Black hole finder

The clearest difference is update cadence: Black hole finder at every 10 days against LearnStrike's every 4 weeks. Black hole finder also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

LearnStrike ships an update every 4 weeks, Black hole finder every 10 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | LearnStrike | Black hole finder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.1 (7 ratings)](https://appshunter.io/ios/app/black-hole-finder/id6446029571/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 62.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 10 days** |
| Monetization | — | Free |
| Size | 283 MB | 81 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [4Growth.com](https://appshunter.io/developer/1728434002) | [DDQ](https://appshunter.io/developer/418328467) |

## What reviewers say

### LearnStrike

[App page](https://appshunter.io/ios/app/learnstrike/id1672761722)

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

**In-app purchases:** none


### Black hole finder

[App page](https://appshunter.io/ios/app/black-hole-finder/id6446029571)

Contribute to cutting-edge astronomical research by identifying potential black holes and rare elements. Sift through real-time telescope images to detect fleeting light signals from cosmic events and potentially earn co-authorship on scientific publications.

**Highlights:** Analyze real-time telescope images, Detect light signals from cosmic events, Contribute to scientific research, Potential co-authorship on publications, Learn about black holes and neutron star mergers, Direct telescopes for additional measurements

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

**In-app purchases:** none


## Frequently asked questions

### Is LearnStrike free?

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

### Is Black hole finder free?

Black hole finder is free to download, with no in-app purchases.

### Do LearnStrike or Black hole finder have ads?

Neither LearnStrike nor Black hole finder shows ads.

### Which is updated more often, LearnStrike or Black hole finder?

LearnStrike ships an update every 4 weeks, and Black hole finder every 10 days. Most recently, LearnStrike was updated on October 25, 2026 and Black hole finder on October 24, 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.*