# Calcula vs Numvolt

The clearest difference is in-app purchases: Calcula at none against Numvolt's 3. Calcula also leads on ratings volume (10 vs 1). Numvolt's advantage is update cadence (every 3 days vs every 4 weeks) and rating (5.0 vs 4.6). On price, ads and device support there is nothing between them.

Both are free to download. Numvolt sells 3 in-app purchases, starting at $2.99 per 7 days. Calcula asks for nothing beyond the download.

Numvolt holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Calcula has 10 ratings behind it against 1, so its average is the more settled of the two.

Calcula ships an update every 4 weeks, Numvolt every 3 days. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Calcula | Numvolt |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (10 ratings)](https://appshunter.io/ios/app/calcula-mental-math-trainer/id1510492911/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/numvolt-mental-math-practice/id6809142973/reviews)** |
| Number of ratings | **10** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 3 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 7 MB | 49 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Raj Pandya](https://appshunter.io/developer/1510492910) | [ROMEO ILARIO FLAVIO GAMBINO](https://appshunter.io/developer/1874823696) |

## What reviewers say

### Calcula

[App page](https://appshunter.io/ios/app/calcula-mental-math-trainer/id1510492911)

This app offers daily mental math drills with customizable modes and difficulty levels. Track your progress with detailed statistics, streaks, and achievements. Designed for focus with a clean interface and no ads or tracking.

**Highlights:** Four game modes: Standard, Percent, Squared, Sequence, Three answer styles: Type, Reveal, Multiple Choice, Flexible session lengths and difficulties, Streak building and leveling system, Unlockable achievements, Detailed performance statistics, Light and dark themes

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

**In-app purchases:** none


### 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 Calcula free?

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

### Is Numvolt free?

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

### Which has better reviews, Calcula or Numvolt?

Numvolt is rated higher. Calcula averages 4.6 out of 5 from 10 ratings, while Numvolt averages 5.0 from 1 ratings.

### Do Calcula or Numvolt have ads?

Neither Calcula nor Numvolt shows ads.

### Which is updated more often, Calcula or Numvolt?

Calcula ships an update every 4 weeks, and Numvolt every 3 days. Most recently, Calcula was updated on November 3, 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.*