# COLOP e vs Sudoku Logic Gym

The clearest difference is price: COLOP e at Free against Sudoku Logic Gym's $0.99. COLOP e also leads on ads (none vs shown) and review sentiment (25% vs 0%). Sudoku Logic Gym's advantage is update cadence (every 5 days vs every 6 weeks). On in-app purchases, device support and iOS requirement there is nothing between them.

COLOP e is free to download; Sudoku Logic Gym costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

COLOP e ships an update every 6 weeks, Sudoku Logic Gym every 5 days. The most recent releases landed on June 1, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | COLOP e | Sudoku Logic Gym |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | **25.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 5 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 111 MB | 7 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [COLOP Stempelerzeugung Skopek GmbH & Co KG](https://appshunter.io/developer/1229990933) | [鹏 王](https://appshunter.io/developer/1801747821) |

## What reviewers say

### COLOP e

[App page](https://appshunter.io/ios/app/colop-e-mark/id1397292575)

Design and print custom full-color imprints onto various materials using a mobile printer. Personalize items, enhance craft projects, streamline office tasks, and create unique event decorations with this app.

**Highlights:** Custom design creation, Smart functions (date, QR code), Various printing modes, Template library, Seamless WiFi connectivity, Device monitoring, Offline imprint storage

**In-app purchases:** none


### Sudoku Logic Gym

[App page](https://appshunter.io/ios/app/sudoku-logic-gymbrain-trainer/id6743388373)

Engage in classic Sudoku puzzles with AI-enhanced challenges and performance tracking. Offers various difficulty levels, unique game modes, and eye-friendly themes to train your brain and improve focus. Track your progress and earn rewards for achievements.

**Highlights:** AI-enhanced Sudoku puzzles, Multiple difficulty levels, Offline play, Progress tracking and rewards, Eye-friendly themes, Mirror Mode

**In-app purchases:** none


## Frequently asked questions

### Is COLOP e free?

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

### Is Sudoku Logic Gym free?

Sudoku Logic Gym costs $0.99, with no in-app purchases.

### Do COLOP e or Sudoku Logic Gym have ads?

Sudoku Logic Gym shows ads; COLOP e does not.

### Which is updated more often, COLOP e or Sudoku Logic Gym?

COLOP e ships an update every 6 weeks, and Sudoku Logic Gym every 5 days. Most recently, COLOP e was updated on June 1, 2026 and Sudoku Logic Gym on September 9, 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.*