# Mental Math vs Numvolt

The clearest difference is rating: Numvolt at 5.0 against Mental Math's 1.0. Numvolt also leads on update cadence (daily vs fortnightly). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Mental Math sells 2 one-off in-app purchases and Numvolt sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Numvolt holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Mental Math ships an update fortnightly, Numvolt daily. The most recent releases landed on September 26, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Mental Math | Numvolt |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/mental-math-kalc/id6764098294/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/numvolt-mental-math-trainer/id6809142973/reviews)** |
| Number of ratings | 1 | 1 |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Daily** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 17 MB | 42 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [LMT Digital Creations](https://appshunter.io/developer/640455461) | [ROMEO ILARIO FLAVIO GAMBINO](https://appshunter.io/developer/1874823696) |

## What reviewers say

### Mental Math

[App page](https://appshunter.io/ios/app/mental-math-kalc/id6764098294)

Sharpen your mental math skills with daily practice. This app uses spaced repetition to help you master concepts like fractions, percentages, and algebra. It offers two modes for flexible learning and provides real-life examples of how math is used every day.

**Highlights:** Spaced repetition system (SRS), Covers multiplication, division, fractions, percentages, algebra, Zen and Chrono practice modes, Visible progress tracking, Real-life math examples, Home screen widgets, Customizable reminders

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plan Annuel | $17.99 | one-time |
| Accès à vie | $29.99 | one-time |


### Numvolt

[App page](https://appshunter.io/ios/app/numvolt-mental-math-trainer/id6809142973)

Enhance your mental math skills with a comprehensive trainer offering 15 topics and 150 levels each. Learn fastest calculation methods, track progress, and compete globally. Features include daily challenges, duels, and a home screen widget.

**Highlights:** 15 topics, 150 levels each, Fastest calculation method explanations, Daily challenges and sprints, Global ladder rankings, Two-player duels, Progress tracking and home screen widget

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Numvolt Pro | $8.99 | one-time |


## Frequently asked questions

### Is Mental Math free?

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

### Is Numvolt free?

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

### Which has better reviews, Mental Math or Numvolt?

Numvolt is rated higher. Mental Math averages 1.0 out of 5 from 1 ratings, while Numvolt averages 5.0 from 1 ratings.

### Do Mental Math or Numvolt have ads?

Neither Mental Math nor Numvolt shows ads.

### Which is updated more often, Mental Math or Numvolt?

Mental Math ships an update fortnightly, and Numvolt daily. Most recently, Mental Math was updated on September 26, 2026 and Numvolt on September 30, 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.*