# Mental Math (Lite) vs Little Impacts

The clearest difference is in-app purchases: Little Impacts at none against Mental Math (Lite)'s 1. Little Impacts also leads on update cadence (every 2 months vs every 16 months). Mental Math (Lite)'s advantage is iOS requirement (10.3 vs 15.0). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. Mental Math (Lite) sells 1 one-off in-app purchase. Little Impacts asks for nothing beyond the download.

Mental Math (Lite) ships an update every 16 months, Little Impacts every 2 months. The most recent releases landed on October 20, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Mental Math (Lite) | Little Impacts |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (52 ratings)](https://appshunter.io/ios/app/mental-math-lite/id758358888/reviews)** | — |
| Number of ratings | **52** | — |
| Positive reviews | 73.1% of reviews | **80.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 22 MB | 214 MB |
| Requires iOS | **10.3** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Trilliarden Entertainment GmbH](https://appshunter.io/developer/1121555076) | [Umweltbundesamt](https://appshunter.io/developer/583898621) |

## What reviewers say

### Mental Math (Lite)

[App page](https://appshunter.io/ios/app/mental-math-lite/id758358888)

Playfully improve your mental calculation skills with various exercises and image puzzles. Developed with mathematics teachers, this app offers multiple difficulty levels and categories to boost your brain power.

**Highlights:** Mental calculation exercises, Image puzzles for motivation, Basic Arithmetics, Division with Remainder, Percentage Calculation, Roman Numerals, Multiples and Divisors, 4 Difficulty Levels

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $2.99 | one-time |


### Little Impacts

[App page](https://appshunter.io/ios/app/little-impacts/id6499263675)

An interactive story following a young environmental activist and her family as they transition to a sustainable lifestyle. Players help characters solve daily life puzzles and tasks, making eco-conscious choices.

**Highlights:** Interactive narrative, Environmental activism theme, Daily life puzzles and tasks, Hand-drawn illustrations, Authentic characters, Humorous storytelling

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

**In-app purchases:** none


## Frequently asked questions

### Is Mental Math (Lite) free?

Mental Math (Lite) is free to download, with in-app purchases available.

### Is Little Impacts free?

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

### Do Mental Math (Lite) or Little Impacts have ads?

Neither Mental Math (Lite) nor Little Impacts shows ads.

### Which is updated more often, Mental Math (Lite) or Little Impacts?

Mental Math (Lite) ships an update every 16 months, and Little Impacts every 2 months. Most recently, Mental Math (Lite) was updated on October 20, 2026 and Little Impacts on October 3, 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.*