# Logicus vs Hidden Differences

The clearest difference is review sentiment: Hidden Differences at 75% against Logicus's 36%. Hidden Differences also leads on in-app purchases (none vs 7) and rating (4.9 vs 4.7). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Logicus sells 7 in-app purchases, starting at $2.99 per 7 days. Hidden Differences asks for nothing beyond the download.

Hidden Differences holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 19K and 52K respectively. Written reviews point the same way: 36% of Logicus's written reviews are positive against 75% of Hidden Differences's.

Logicus ships an update monthly, Hidden Differences every 3 weeks. Both last shipped on October 17, 2026.

## The numbers

| Metric | Logicus | Hidden Differences |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (19K ratings)](https://appshunter.io/ios/app/logicus-brain-training-games/id6471974327/reviews) | **[4.9 (52K ratings)](https://appshunter.io/ios/app/hidden-differences-spot-it/id6743826157/reviews)** |
| Number of ratings | 19K | **52K** |
| Positive reviews | 36.1% of reviews | **74.6% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 277 MB | 216 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Masal Games](https://appshunter.io/developer/1701418149) | [CrazyArt](https://appshunter.io/developer/1770504093) |

## What reviewers say

### Logicus

[App page](https://appshunter.io/ios/app/logicus-brain-training-games/id6471974327)

Engage in daily mind games and IQ tests designed to enhance memory, concentration, and cognitive abilities. With over 20 unique mini-games, this app offers a fun and effective way to improve mental agility and problem-solving skills.

**Highlights:** Daily mind games, IQ tests, Memory enhancement, Concentration improvement, Logic puzzles, Mental agility training, Over 20 mini-games

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription Discounted | $2.99 | per 7 days |
| Weekly Offer | $4.99 | per 7 days |
| Weekly Subscription (No Trial) | $6.99 | per 7 days |
| Weekly Subscription | $6.99 | per 7 days |
| Yearly Subscription | $39.99 | per year |
| Premium Access | $39.99 | one-time |
| Premium Access | $49.99 | one-time |

**What reviewers like**

- 👍 Challenging puzzles
- 👍 Helps with brain memory
- 👍 Productive and enjoyable
- 👍 Good for brain training

**What reviewers complain about**

- ⏱️ Stressful timed puzzles
- 💰 Aggressive monetization with ads and paywalls
- 🐛 Bugs and issues with certain game modes
- 🤕 Potential for causing headaches/epilepsy

**Reported bugs**

- Draw One Line game levels not progressing past 99
- Flickering and image quality issues
- Intro screen flashing constantly

**Requested features**

- Option to disable timed puzzles
- More advanced puzzle solving modes
- Ability to skip levels with bugs


### Hidden Differences

[App page](https://appshunter.io/ios/app/hidden-differences-spot-it/id6743826157)

This game challenges your observation skills with beautifully crafted scenes filled with hidden differences. Enjoy hundreds of levels, use hints when stuck, and relax with its stress-free gameplay. It's an engaging and addictive puzzle experience for all skill levels.

**Highlights:** Stunning visuals and meticulously designed scenes, Hundreds of unique levels, Hint system for assistance, Relaxing and stress-free gameplay, Regular updates with new content

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

**In-app purchases:** none

**What reviewers like**

- 👍 Challenging
- 👍 Relaxing but requiring attention to detail
- 👍 Keeps your mind occupied
- 👍 Helps brain and eye coordination
- 👍 Makes you pay good attention


## Frequently asked questions

### Is Logicus free?

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

### Is Hidden Differences free?

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

### Which has better reviews, Logicus or Hidden Differences?

Hidden Differences is rated higher. Logicus averages 4.7 out of 5 from 19K ratings, while Hidden Differences averages 4.9 from 52K ratings.

### Do Logicus or Hidden Differences have ads?

Both Logicus and Hidden Differences show ads.

### Which is updated more often, Logicus or Hidden Differences?

Logicus ships an update monthly, and Hidden Differences every 3 weeks. Most recently, Logicus was updated on October 17, 2026 and Hidden Differences on October 17, 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.*