# 100% vs B&J

The clearest difference is rating: B&J at 5.0 against 100%'s 4.5. 100%'s advantage is ads (none vs shown) and ratings volume (39 vs 1). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. 100% sells 1 one-off in-app purchase and B&J sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

B&J holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: 100% has 39 ratings behind it against 1, so its average is the more settled of the two.

100% ships an update every 5 days, B&J weekly. The most recent releases landed on October 21, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | 100% | B&J |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (39 ratings)](https://appshunter.io/ios/app/100-a-memory-challenge/id1159375420/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/b-and-j/id6446428529/reviews)** |
| Number of ratings | **39** | 1 |
| Positive reviews | 79.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Weekly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 60 MB | 547 MB |
| Requires iOS | **7.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Umbrella Games LLC](https://appshunter.io/developer/1059299541) | [Denis Ablyzalov](https://appshunter.io/developer/1449049501) |

## What reviewers say

### 100%

[App page](https://appshunter.io/ios/app/100-a-memory-challenge/id1159375420)

Test and improve your memory with a daily brain challenge. Memorize graphical patterns within a second and recreate them to enhance your recall abilities. Aim to reach 100% memory capacity through consistent practice.

**Highlights:** Memorize graphical patterns, Recreate patterns, Daily brain challenge, Improve memory capacity, Track memory improvement

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $0.99 | one-time |

**What reviewers like**

- 🚀 Amazing
- 🚀 Very fun
- 👍 Fun
- 👍 Challenging
- 👍 Simple yet intellectually helpful

**What reviewers complain about**

- 🐛 Ads frequently interfere with gameplay
- 🐛 Slow touch reactions
- 🐛 Distracting high-pitched sound
- 🐛 Ads cover the screen during gameplay
- 🐛 Lack of color contrast for colorblind users

**Reported bugs**

- Tiles not registering touches properly
- App not working when offline
- Inconsistent performance on older devices

**Requested features**

- Ability to choose difficulty level directly
- Customization options for design and colors
- Sharing features to challenge friends
- Colourblind mode


### B&J

[App page](https://appshunter.io/ios/app/b-and-j/id6446428529)

Embark on a cosmic puzzle adventure to save constellations from the Void. Solve intricate crystal-matching puzzles, uncover celestial secrets, and customize your hero. Compete in tournaments and unlock achievements in a vibrant universe.

**Highlights:** Twelve puzzle games, Discover constellation and star names, Collect crystals to free stars, Character customization, Global tournaments, Unlock achievements

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gems Space Pack S | $0.99 | one-time |
| Gems Space Pack M | $1.99 | one-time |
| Gems Space Pack L | $2.99 | one-time |
| Gems Space Pack XL | $3.99 | one-time |
| Gems Space Pack Huge | $4.99 | one-time |
| Space Pack Discoverer | $4.99 | one-time |


## Frequently asked questions

### Is 100% free?

100% is free to download, with in-app purchases available.

### Is B&J free?

B&J is free to download, with in-app purchases available.

### Which has better reviews, 100% or B&J?

B&J is rated higher. 100% averages 4.5 out of 5 from 39 ratings, while B&J averages 5.0 from 1 ratings.

### Do 100% or B&J have ads?

B&J shows ads; 100% does not.

### Which is updated more often, 100% or B&J?

100% ships an update every 5 days, and B&J weekly. Most recently, 100% was updated on October 21, 2026 and B&J on October 16, 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.*