# 日語N5單字 vs BRAIN 99

The clearest difference is ads: 日語N5單字 at none against BRAIN 99's shown. 日語N5單字 also leads on review sentiment (90% vs 60%) and iOS requirement (9.0 vs 12.0). BRAIN 99's advantage is update cadence (every 8 days vs every 2 weeks). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. 日語N5單字 sells 5 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.

日語N5單字 ships an update every 2 weeks, BRAIN 99 every 8 days. The most recent releases landed on October 14, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | 日語N5單字 | 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 | **90.0% of reviews** | 60.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Every 8 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 205 MB | 311 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Kuei Ming Lai](https://appshunter.io/developer/1261229423) | [XOGAMES Inc](https://appshunter.io/developer/1133102824) |

## What reviewers say

### 日語N5單字

[App page](https://appshunter.io/ios/app/n5/id1538918367)

Learn Japanese N5 vocabulary through an engaging quiz battle game set in a traditional Japanese pleasure district. Features voice-acted words, diverse question types, and in-game items to make studying fun and rewarding.

**Highlights:** N5 Japanese vocabulary, Authentic pronunciation with voice acting, Quiz battle gameplay, Multiple girls and question types, Items, equipment, and skills, Achievements and missions

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 小判禮包 | $0.99 | one-time |
| 花瓣禮包 | $0.99 | one-time |
| 舞子禮包 | $1.99 | one-time |
| 琴未禮包 | $1.99 | one-time |
| 彩香禮包 | $1.99 | 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 日語N5單字 free?

日語N5單字 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 日語N5單字 or BRAIN 99 have ads?

BRAIN 99 shows ads; 日語N5單字 does not.

### Which is updated more often, 日語N5單字 or BRAIN 99?

日語N5單字 ships an update every 2 weeks, and BRAIN 99 every 8 days. Most recently, 日語N5單字 was updated on October 14, 2026 and BRAIN 99 on October 21, 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.*