# BackEndHero vs BRAIN 99

The clearest difference is ads: BackEndHero at none against BRAIN 99's shown. BRAIN 99's advantage is update cadence (every 8 days vs every 8 months) and iOS requirement (12.0 vs 16.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. BackEndHero sells 4 one-off in-app purchases and BRAIN 99 sells 12 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

BackEndHero ships an update every 8 months, BRAIN 99 every 8 days. The most recent releases landed on October 7, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | BackEndHero | BRAIN 99 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/brain-99-quick-brain-battle/id6456751981/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 60.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 8 months | **Every 8 days** |
| Monetization | — | Free with in-app purchases |
| Size | 77 MB | 311 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Oh Hyun Kwon](https://appshunter.io/developer/1460542026) | [XOGAMES Inc](https://appshunter.io/developer/1133102824) |

## What reviewers say

### BackEndHero

[App page](https://appshunter.io/ios/app/backendhero/id1461432877)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |
| remove ads | $0.99 | one-time |
| TBC1200 | $0.99 | one-time |
| 광고 제거 | $0.99 | one-time |


### BRAIN 99

[App page](https://appshunter.io/ios/app/brain-99-quick-brain-battle/id6456751981)

Engage in real-time brain battles with friends and family. This game offers over 20 challenges to activate different parts of your brain, improving memory, observation, and calculation skills. Compete for rewards and titles to boost your IQ.

**Highlights:** Real-time multiplayer brain battles, Over 20 brain-activating challenges, Improves memory, observation, analysis, focus, calculation, Competitive rankings and rewards, Intuitive gameplay for all ages, Unlock new challenges and titles

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coins x1100 | $1.99 | one-time |
| Starter Pack Lv.1 | $1.99 | one-time |
| Coins x2500 | $3.99 | one-time |
| Starter Pack Lv.2 | $3.99 | one-time |
| No Ads | $5.99 | one-time |
| Starter Pack Lv.3 | $5.99 | one-time |
| Starter Pack | $5.99 | one-time |
| Coins x7500 | $7.99 | one-time |
| Starter Pack All | $7.99 | one-time |
| Coins x14900 | $14.99 | one-time |
| Coins x27000 | $17.99 | one-time |
| Coins x50000 | $22.99 | one-time |


## Frequently asked questions

### Is BackEndHero free?

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

### Is BRAIN 99 free?

BRAIN 99 is free to download, with in-app purchases available.

### Do BackEndHero or BRAIN 99 have ads?

BRAIN 99 shows ads; BackEndHero does not.

### Which is updated more often, BackEndHero or BRAIN 99?

BackEndHero ships an update every 8 months, and BRAIN 99 every 8 days. Most recently, BackEndHero was updated on October 7, 2026 and BRAIN 99 on October 4, 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.*