# FocusGrid vs Least Common Multiple PRO

The clearest difference is price: FocusGrid at Free against Least Common Multiple PRO's $1.99. Least Common Multiple PRO's advantage is in-app purchases (none vs 1) and update cadence (weekly vs every 2 months). On ads and device support there is nothing between them.

FocusGrid is free to download; Least Common Multiple PRO costs $1.99 up front. FocusGrid sells 1 one-off in-app purchase. Least Common Multiple PRO asks for nothing beyond the download.

FocusGrid ships an update every 2 months, Least Common Multiple PRO weekly. The most recent releases landed on October 12, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | FocusGrid | Least Common Multiple PRO |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free | — |
| Size | 7 MB | 179 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [华芳 张](https://appshunter.io/developer/586041482) | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) |

## What reviewers say

### FocusGrid

[App page](https://appshunter.io/ios/app/focusgrid-schulte-table/id6759941005)

This minimalist brain training game helps improve attention, speed, and concentration by tapping numbers in ascending order as quickly as possible. It features a daily goal system, streak tracking, and performance monitoring to help users see measurable improvement over time.

**Highlights:** Improve attention and concentration, Tap numbers in order quickly, Daily goal system, Track streaks and performance, Multiple grid sizes, Distraction-free design

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FocusGrid Pro | $2.99 | one-time |


### Least Common Multiple PRO

[App page](https://appshunter.io/ios/app/least-common-multiple-pro/id6792035276)

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

**In-app purchases:** none


## Frequently asked questions

### Is FocusGrid free?

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

### Is Least Common Multiple PRO free?

Least Common Multiple PRO costs $1.99, with no in-app purchases.

### Do FocusGrid or Least Common Multiple PRO have ads?

Neither FocusGrid nor Least Common Multiple PRO shows ads.

### Which is updated more often, FocusGrid or Least Common Multiple PRO?

FocusGrid ships an update every 2 months, and Least Common Multiple PRO weekly. Most recently, FocusGrid was updated on October 12, 2026 and Least Common Multiple PRO on October 8, 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.*