# Cracking the Cryptic vs Rithmo

The clearest difference is in-app purchases: Rithmo at none against Cracking the Cryptic's 10. Rithmo also leads on update cadence (every 5 days vs every 3 weeks). Cracking the Cryptic's advantage is iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Cracking the Cryptic sells 10 one-off in-app purchases. Rithmo asks for nothing beyond the download.

Cracking the Cryptic ships an update every 3 weeks, Rithmo every 5 days. The most recent releases landed on November 4, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Cracking the Cryptic | Rithmo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (211 ratings)](https://appshunter.io/ios/app/cracking-the-cryptic/id1629992934/reviews)** | — |
| Number of ratings | **211** | — |
| Positive reviews | 72.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 234 MB | 16 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nick Carney](https://appshunter.io/developer/1434235673) | [rithmo.app](https://appshunter.io/developer/1896413482) |

## What reviewers say

### Cracking the Cryptic

[App page](https://appshunter.io/ios/app/cracking-the-cryptic/id1629992934)

This app offers a curated collection of handcrafted Sudoku puzzles from world-renowned constructors. Explore classic and unique variants, with new puzzle packs released regularly. A free introductory pack is included with download.

**Highlights:** Handcrafted Sudoku puzzles, Curated by expert constructors, Classic and unique variants, Regularly released puzzle packs, Free introductory puzzle pack

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CTC Worms - James Sinclair | $0.99 | one-time |
| CTC Worms - Marty Sears | $0.99 | one-time |
| CTC Worms - Michael Lefkowitz | $1.99 | one-time |
| GAS Volume #1 | $2.99 | one-time |
| GAS Volume #2 | $2.99 | one-time |
| CTC Approachable Sudoku #1 | $2.99 | one-time |
| Domino Sudoku Pack | $4.99 | one-time |
| Lines Variety Pack | $4.99 | one-time |
| Classic Volume #2 | $4.99 | one-time |
| CTC Fog Pack #1 | $4.99 | one-time |

**What reviewers like**

- 🚀 Best sudoku app
- 👍 Great variety of puzzles
- 👍 Excellent user interface
- 👍 Challenging and fun puzzles
- 👍 Constant updates with new puzzles

**What reviewers complain about**

- 🐛 Hints are often incorrect or unhelpful
- 🐛 Bugs and crashes, especially after updates
- 🔋 Battery draining issues
- 🔒 Too many in-app purchases required to access content

**Reported bugs**

- Puzzle progress and purchases disappearing after updates
- Incorrect rules or hints in certain puzzles
- Crashes and freezes, especially on older devices or Macs
- Inconsistent behavior when switching between portrait and landscape modes

**Requested features**

- Add more color options for pencil marking and highlighting
- Implement a way to clear progress or start puzzles from scratch
- Integrate all CTC apps into a single app for better organization
- Add keyboard support, especially on Mac
- Improve the quality and clarity of hints


### Rithmo

[App page](https://appshunter.io/ios/app/rithmo/id6767182850)

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

**In-app purchases:** none


## Frequently asked questions

### Is Cracking the Cryptic free?

Cracking the Cryptic is free to download, with in-app purchases available.

### Is Rithmo free?

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

### Do Cracking the Cryptic or Rithmo have ads?

Neither Cracking the Cryptic nor Rithmo shows ads.

### Which is updated more often, Cracking the Cryptic or Rithmo?

Cracking the Cryptic ships an update every 3 weeks, and Rithmo every 5 days. Most recently, Cracking the Cryptic was updated on November 4, 2026 and Rithmo on October 28, 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.*