# 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 (every 3 days 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 3 in-app purchases, starting at $2.99 per 7 days. 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 every 3 days. The most recent releases landed on November 9, 2026 and November 6, 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-practice/id6809142973/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 3 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 17 MB | 49 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-practice/id6809142973)

Enhance your arithmetic, fractions, and algebra skills with engaging drills and clear, step-by-step solutions. Practice in timed sprints or a relaxed Zen mode, and track your progress across numerous topics. Compete globally or challenge a friend on a single device.

**Highlights:** Arithmetic, fractions, percentages, algebra training, Timed sprints and Zen mode, Step-by-step solution explanations, Global and local leaderboards, Two-player duel mode, Progress tracking and Home Screen widget

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Numvolt Pro Weekly | $2.99 | per 7 days |
| Numvolt Pro Yearly | $14.99 | per year |
| Numvolt Pro | $24.99 | 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 every 3 days. Most recently, Mental Math was updated on November 9, 2026 and Numvolt on November 6, 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.*