# The Search for Planet X vs Turing Machine Notepad

The clearest difference is review sentiment: Turing Machine Notepad at 100% against The Search for Planet X's 70%. Turing Machine Notepad also leads on rating (5.0 vs 4.8). The Search for Planet X's advantage is update cadence (every 6 weeks vs every 9 months) and ratings volume (33 vs 3). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Turing Machine Notepad holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: The Search for Planet X has 33 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 70% of The Search for Planet X's written reviews are positive against 100% of Turing Machine Notepad's.

The Search for Planet X ships an update every 6 weeks, Turing Machine Notepad every 9 months. The most recent releases landed on July 21, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | The Search for Planet X | Turing Machine Notepad |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (33 ratings)](https://appshunter.io/ios/app/the-search-for-planet-x/id1456596104/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/turing-machine-notepad/id6755933821/reviews)** |
| Number of ratings | **33** | 3 |
| Positive reviews | 70.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 9 months |
| Monetization | Free | Free |
| Size | 85 MB | 2 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Foxtrot Games LLC](https://appshunter.io/developer/1456596103) | [Nicolas Lehovetzki](https://appshunter.io/developer/412827944) |

## What reviewers say

### The Search for Planet X

[App page](https://appshunter.io/ios/app/the-search-for-planet-x/id1456596104)

This app simulates astronomical investigation, allowing players to use logical deductions and observations to search for a distant planet. It acts as a companion to a tabletop board game, randomly generating game elements and guiding the discovery process.

**Highlights:** Simulates astronomical investigation, Uses logical deductions, Randomly generates game elements, Companion to a tabletop board game, Tracks player progress and theories

**Features:** macOS Compatibility

**In-app purchases:** none


### Turing Machine Notepad

[App page](https://appshunter.io/ios/app/turing-machine-notepad/id6755933821)

This digital notepad helps players of the Turing Machine board game track game state, manage deductions, and record test results. It offers an intuitive interface for managing multiple rounds and strategies, digitizing the gaming experience.

**Highlights:** Possibility elimination grid, Verification tracking table, Rich text editor with SF symbols, Auto-save functionality, Manage multiple rounds, Dynamic test row addition

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

**In-app purchases:** none


## Frequently asked questions

### Is The Search for Planet X free?

The Search for Planet X is free to download, with no in-app purchases.

### Is Turing Machine Notepad free?

Turing Machine Notepad is free to download, with no in-app purchases.

### Which has better reviews, The Search for Planet X or Turing Machine Notepad?

Turing Machine Notepad is rated higher. The Search for Planet X averages 4.8 out of 5 from 33 ratings, while Turing Machine Notepad averages 5.0 from 3 ratings.

### Do The Search for Planet X or Turing Machine Notepad have ads?

Neither The Search for Planet X nor Turing Machine Notepad shows ads.

### Which is updated more often, The Search for Planet X or Turing Machine Notepad?

The Search for Planet X ships an update every 6 weeks, and Turing Machine Notepad every 9 months. Most recently, The Search for Planet X was updated on July 21, 2026 and Turing Machine Notepad on September 26, 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.*