# Flull Flash 1000 vs Brain Grid Merge

The clearest difference is update cadence: Flull Flash 1000 at every 3 days against Brain Grid Merge's fortnightly. Brain Grid Merge'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. Flull Flash 1000 sells 4 in-app purchases, starting at $1.99 per month and Brain Grid Merge sells 9 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Flull Flash 1000 ships an update every 3 days, Brain Grid Merge fortnightly. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Flull Flash 1000 | Brain Grid Merge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/flull-flash-1000/id1559676655/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 81.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 days** | Fortnightly |
| Monetization | Freemium | — |
| Size | 81 MB | 75 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | +12 |
| Developer | [Naoki Nakamichi](https://appshunter.io/developer/1534276177) | [ryuichi hayashida](https://appshunter.io/developer/1808362152) |

## What reviewers say

### Flull Flash 1000

[App page](https://appshunter.io/ios/app/flull-flash-1000/id1559676655)

This quiz app focuses on multi-wait patterns in Mahjong. It offers over 1000 questions with visual breakdowns to help users understand and quickly improve their waiting pattern recognition and decision-making skills.

**Highlights:** Multi-wait pattern quizzes, Over 1000 questions, Visual breakdown of waits, Level-based learning, Review of incorrect answers, Time attack mode

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro (Monthly) | $1.99 | per month |
| Pro (yearly) | $12.99 | per year |
| Tile type changeable option | $2.99 | one-time |
| 買い切りプラン | $29.99 | one-time |


### Brain Grid Merge

[App page](https://appshunter.io/ios/app/brain-grid-merge/id6763974041)

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 160コイン | $0.99 | one-time |
| 330コイン | $1.99 | one-time |
| 広告を非表示 | $2.99 | one-time |
| 680コイン | $3.99 | one-time |
| 850コイン | $4.99 | one-time |
| 1100コイン | $5.99 | one-time |
| 2300コイン | $11.99 | one-time |
| 3600コイン | $19.99 | one-time |
| 6500コイン | $29.99 | one-time |


## Frequently asked questions

### Is Flull Flash 1000 free?

Flull Flash 1000 is free to download, with in-app purchases available.

### Is Brain Grid Merge free?

Brain Grid Merge is free to download, with in-app purchases available.

### Do Flull Flash 1000 or Brain Grid Merge have ads?

Both Flull Flash 1000 and Brain Grid Merge show ads.

### Which is updated more often, Flull Flash 1000 or Brain Grid Merge?

Flull Flash 1000 ships an update every 3 days, and Brain Grid Merge fortnightly. Most recently, Flull Flash 1000 was updated on October 24, 2026 and Brain Grid Merge on October 31, 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.*