# Brain Flipper vs 絵で覚える英熟語300

The clearest difference is update cadence: Brain Flipper at every 3 days against 絵で覚える英熟語300's fortnightly. 絵で覚える英熟語300's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Brain Flipper ships an update every 3 days, 絵で覚える英熟語300 fortnightly. The most recent releases landed on September 30, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Brain Flipper | 絵で覚える英熟語300 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Fortnightly |
| Monetization | — | Paid |
| Size | 3 MB | 44 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Satoshi Ishiwata](https://appshunter.io/developer/1876108945) | [hiroaki suzuki](https://appshunter.io/developer/1477004044) |

## What reviewers say

### Brain Flipper

[App page](https://appshunter.io/ios/app/brain-flipper/id6758971094)

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

**In-app purchases:** none


### 絵で覚える英熟語300

[App page](https://appshunter.io/ios/app/300/id6767985403)

Learn English idioms and polysemous words through 300 AI-generated illustrations. This app offers a unique visual learning experience, focusing on core concepts and providing example sentences. It's a one-time purchase with no subscriptions or ads, designed for those who struggle with rote memorization.

**Highlights:** AI-generated illustrations for 300 idioms, Core concept explanations for 30 polysemous words, Basic and intermediate example sentences, Fill-in-the-blank test mode, Native speaker audio pronunciation, Home screen widget for daily idioms, Offline functionality

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

**In-app purchases:** none


## Frequently asked questions

### Is Brain Flipper free?

Brain Flipper is free to download, with no in-app purchases.

### Is 絵で覚える英熟語300 free?

絵で覚える英熟語300 is free to download, with no in-app purchases.

### Do Brain Flipper or 絵で覚える英熟語300 have ads?

Neither Brain Flipper nor 絵で覚える英熟語300 shows ads.

### Which is updated more often, Brain Flipper or 絵で覚える英熟語300?

Brain Flipper ships an update every 3 days, and 絵で覚える英熟語300 fortnightly. Most recently, Brain Flipper was updated on September 30, 2026 and 絵で覚える英熟語300 on October 2, 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.*