# BRAIN 99 vs Slam Clash!

The clearest difference is ads: Slam Clash! at none against BRAIN 99's shown. Slam Clash! also leads on ratings volume (504 vs 2). BRAIN 99's advantage is rating (5.0 vs 4.7) and review sentiment (60% vs 46%). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. BRAIN 99 sells 12 one-off in-app purchases and Slam Clash! sells 30 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

BRAIN 99 holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Slam Clash! has 504 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 60% of BRAIN 99's written reviews are positive against 46% of Slam Clash!'s.

BRAIN 99 ships an update every 8 days, Slam Clash! every 2 weeks. The most recent releases landed on October 21, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | BRAIN 99 | Slam Clash! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/brain-99-quick-brain-battle/id6456751981/reviews)** | [4.7 (504 ratings)](https://appshunter.io/ios/app/slam-clash/id6502546035/reviews) |
| Number of ratings | 2 | **504** |
| Positive reviews | **60.0% of reviews** | 46.2% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 8 days** | Every 2 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 311 MB | 571 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [XOGAMES Inc](https://appshunter.io/developer/1133102824) | [FAIRY DRAGON - FZCO](https://appshunter.io/developer/1763052622) |

## What reviewers say

### 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 |


### Slam Clash!

[App page](https://appshunter.io/ios/app/slam-clash/id6502546035)

Embark on a nostalgic digital cap collecting adventure. Explore diverse worlds, collect hundreds of unique caps, and master thrilling cap-flipping mini-games. Trade with players globally and compete to become the ultimate Cap Champion.

**Highlights:** Collect digital caps, Explore themed worlds, Engage in mini-games, Trade with global players, Master cap-flipping gameplay, Compete in challenges, Join a global community

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

**In-app purchases (30)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coin Dozer | $0.99 | one-time |
| Common pack | $0.99 | one-time |
| Pile of tokens | $1.99 | one-time |
| Coin Dozer | $1.99 | one-time |
| Skip expedition | $1.99 | one-time |
| Unique pack | $1.99 | one-time |
| Coins Bundle | $1.99 | one-time |
| Energy bundle | $1.99 | one-time |
| Personal Offer | $1.99 | one-time |
| Rolling Offer | $2.99 | one-time |
| Piggy Bank | $2.99 | one-time |
| Spin | $2.99 | one-time |
| Rolling Offer | $3.99 | one-time |
| Joker Rolling Offer | $4.99 | one-time |
| Battle Pass Bundle | $4.99 | one-time |
| Coin Dozer | $4.99 | one-time |
| Skipits bundle | $4.99 | one-time |
| Rare pack | $4.99 | one-time |
| Piggy Bank | $4.99 | one-time |
| Energy bundle | $4.99 | one-time |
| Personal Offer | $4.99 | one-time |
| Battle Pass Bundle | $7.99 | one-time |
| Rare pack | $9.99 | one-time |
| Battle Pass | $9.99 | one-time |
| Energy bundle | $9.99 | one-time |
| Personal Offer | $9.99 | one-time |
| Personal Offer | $12.99 | one-time |
| Piggy Bank | $14.99 | one-time |
| Piggy Bank | $17.99 | one-time |
| Energy bundle | $19.99 | one-time |

**What reviewers like**

- 👍 Nostalgic gameplay reminiscent of classic pogs
- 😌 Relaxing, laid-back game experience
- 🎁 Generous rewards and prizes
- 📺 Optional ads instead of forced commercials
- 🎮 Simple, addictive game mechanics

**What reviewers complain about**

- 🐛 Frequent loading and freezing issues
- 💰 Aggressive monetization and microtransactions
- 📺 Excessive ads and pop-ups
- ⏱️ Slow energy regeneration requiring long wait times
- 🎮 Limited gameplay depth compared to classic pogs

**Reported bugs**

- Game freezes when entering versus mode
- Loading screen fails to complete
- Unable to progress past certain levels (level 40-41, level 125)
- Piggy bank smash feature has no tap target
- Energy refill system stops working

**Requested features**

- Ability to change slammer customization
- Carry-over system for axe cards between sessions
- True PvP battle mode instead of Coin Masters-style gameplay
- Additional side games to increase variety
- Better tips and tutorials for game mechanics


## Frequently asked questions

### Is BRAIN 99 free?

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

### Is Slam Clash! free?

Slam Clash! is free to download, with in-app purchases available.

### Which has better reviews, BRAIN 99 or Slam Clash!?

BRAIN 99 is rated higher. BRAIN 99 averages 5.0 out of 5 from 2 ratings, while Slam Clash! averages 4.7 from 504 ratings.

### Do BRAIN 99 or Slam Clash! have ads?

BRAIN 99 shows ads; Slam Clash! does not.

### Which is updated more often, BRAIN 99 or Slam Clash!?

BRAIN 99 ships an update every 8 days, and Slam Clash! every 2 weeks. Most recently, BRAIN 99 was updated on October 21, 2026 and Slam Clash! 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.*