# Concentration vs Perfect Block Fit

The clearest difference is price: Perfect Block Fit at Free against Concentration's $0.99. Perfect Block Fit also leads on rating (5.0 vs 4.0) and update cadence (every 2 days vs every 8 days). Concentration's advantage is ads (none vs shown) and iOS requirement (13.0 vs 17.0). On ratings volume, in-app purchases and device support there is nothing between them.

Perfect Block Fit is free to download; Concentration costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Perfect Block Fit holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Concentration ships an update every 8 days, Perfect Block Fit every 2 days. The most recent releases landed on November 3, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Concentration | Perfect Block Fit |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/concentration-card-game/id1462017368/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/perfect-block-fit/id6791156592/reviews)** |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 8 days | **Every 2 days** |
| Monetization | Paid | **Ad-supported** |
| Size | 2 MB | 12 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ankit Shah](https://appshunter.io/developer/1462017367) | [Arima Jain](https://appshunter.io/developer/1679158070) |

## What reviewers say

### Concentration

[App page](https://appshunter.io/ios/app/concentration-card-game/id1462017368)

A classic memory matching card game where players flip cards to find pairs. It's suitable for all ages, offering a fun challenge for both children and adults to test their recall.

**Highlights:** Card matching gameplay, Memory testing, Solitaire or multiplayer, Challenging for adults, Good for children

**Features:** macOS Compatibility

**In-app purchases:** none


### Perfect Block Fit

[App page](https://appshunter.io/ios/app/perfect-block-fit/id6791156592)

A relaxing block puzzle game where you drag and place uniquely shaped blocks to perfectly fill empty spaces. With 100 handcrafted levels and no timers, it offers a satisfying brain teaser for all ages.

**Highlights:** 100 handcrafted puzzle levels, Drag-and-drop controls, No time limits, Unique block shapes, Offline play, Progressive difficulty

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

**In-app purchases:** none


## Frequently asked questions

### Is Concentration free?

Concentration costs $0.99, with no in-app purchases.

### Is Perfect Block Fit free?

Perfect Block Fit is free to download, with no in-app purchases.

### Which has better reviews, Concentration or Perfect Block Fit?

Perfect Block Fit is rated higher. Concentration averages 4.0 out of 5 from 1 ratings, while Perfect Block Fit averages 5.0 from 1 ratings.

### Do Concentration or Perfect Block Fit have ads?

Perfect Block Fit shows ads; Concentration does not.

### Which is updated more often, Concentration or Perfect Block Fit?

Concentration ships an update every 8 days, and Perfect Block Fit every 2 days. Most recently, Concentration was updated on November 3, 2026 and Perfect Block Fit on November 10, 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.*