# LimitMemory vs フラッシュ暗算DX

The clearest difference is review sentiment: LimitMemory at 75% against フラッシュ暗算DX's 30%. LimitMemory also leads on rating (4.6 vs 3.0) and in-app purchases (none vs 1). フラッシュ暗算DX's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 22 months). On price and device support there is nothing between them.

Both are free to download. フラッシュ暗算DX sells 1 one-off in-app purchase. LimitMemory asks for nothing beyond the download.

LimitMemory holds the better App Store score, 4.6 against 3.0. Both are backed by a comparable volume of ratings — 9 and 2 respectively. Written reviews point the same way: 75% of LimitMemory's written reviews are positive against 30% of フラッシュ暗算DX's.

LimitMemory ships an update every 22 months, フラッシュ暗算DX every 3 weeks. The most recent releases landed on October 14, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | LimitMemory | フラッシュ暗算DX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (9 ratings)](https://appshunter.io/ios/app/limitmemory-lv99/id503735497/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/dx/id1058775775/reviews) |
| Number of ratings | **9** | 2 |
| Positive reviews | **75.0% of reviews** | 30.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 22 months | **Every 3 weeks** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 30 MB | 39 MB |
| Requires iOS | 12.0 | **7.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [OMOSHIRO KAKUMEI CAPSULE PLUS, K.K.](https://appshunter.io/developer/342689348) | [Satoshi Negishi](https://appshunter.io/developer/704574251) |

## What reviewers say

### LimitMemory

[App page](https://appshunter.io/ios/app/limitmemory-lv99/id503735497)

Test your memory with a challenging panel-tapping game. Follow the sequence of lights and sounds to advance through levels. See how far you can go beyond level 99.

**Highlights:** Sequential panel tapping, Visual and auditory cues, Level progression, Memory challenge, High score tracking

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

**In-app purchases:** none


### フラッシュ暗算DX

[App page](https://appshunter.io/ios/app/dx/id1058775775)

This app offers a comprehensive flash calculation experience with three distinct modes catering to all skill levels. It features multi-user support, customizable practice settings, and competitive modes with national rankings. Personalize your experience with various configuration options.

**Highlights:** Multi-user support (up to 10), Customizable practice mode, Graded certification mode (10th kyu to 10th dan), Competitive survival mode, National rankings, Configurable display and input settings

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告解除 | $1.99 | one-time |


## Frequently asked questions

### Is LimitMemory free?

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

### Is フラッシュ暗算DX free?

フラッシュ暗算DX is free to download, with in-app purchases available.

### Which has better reviews, LimitMemory or フラッシュ暗算DX?

LimitMemory is rated higher. LimitMemory averages 4.6 out of 5 from 9 ratings, while フラッシュ暗算DX averages 3.0 from 2 ratings.

### Do LimitMemory or フラッシュ暗算DX have ads?

LimitMemory shows ads; フラッシュ暗算DX does not.

### Which is updated more often, LimitMemory or フラッシュ暗算DX?

LimitMemory ships an update every 22 months, and フラッシュ暗算DX every 3 weeks. Most recently, LimitMemory was updated on October 14, 2026 and フラッシュ暗算DX 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.*