# Numvolt: Mental Math Practice — Speed Drills & Clear Solutions

> Mental math practice app with drills, step-by-step solutions, and global leaderboards. (iPhone/iPad app by ROMEO ILARIO FLAVIO GAMBINO.)

- Source: https://appshunter.io/ios/app/numvolt-mental-math-practice/id6809142973 (this page in markdown: same URL + `.md`)
- Developer: [ROMEO ILARIO FLAVIO GAMBINO](https://appshunter.io/developer/1874823696)
- Category: Education, Productivity
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 17.0 · 49 MB
- Languages: Arabic, Bangla, Catalan, Croatian, Czech, Danish, Dutch, English, Finnish, French and 36 more
- Released: 2026-09-09
- Data updated: 2026-11-06
- Monetization: free with in-app purchases

## What is Numvolt?

Practice mental math with short exercises and step-by-step corrections. For new installations, full sessions require Numvolt Pro: a weekly or yearly subscription, or a one-time lifetime purchase. Prices and terms are shown before purchase.

Train on arithmetic, times tables, fractions and percentages. Try timed sprints or take your time in Zen mode. No account and no ads.

FIFTEEN TOPICS, A HUNDRED AND FIFTY RUNGS EACH
Addition, subtraction, multiplication, division, fractions, percentages, order of operations, powers, algebra, square roots, signed numbers, proportions, time and durations, unit conversion and number patterns. Each topic has its own 150-rung journey, up to five elite chapters; the difficulty adjusts during the session, block by block. You pick your starting point at setup, and you can always replay a lower level.

UNDERSTAND THE METHOD, STEP BY STEP
After a mistake, and at the end of a session for your slowest answers, Numvolt shows you a way to do it in your head, step by step: 71 × 87 is 70 × 87 + 87; 79² is 80² − 160 + 1. With the reflex to keep and other ways to do it. In the courses, enter a supported calculation to explore a mental math method. In Zen mode there is no timer: time to understand.

SPRINTS AND A DAILY CHALLENGE
15, 30 or 60 seconds on the + − × ÷ mix. +1 per correct answer, −1 per mistake. The daily challenge is the same 60-second series for everyone, all day long.

A LADDER FROM YOUR CITY TO THE WORLD
Join the ladder with a nickname and your city. Your best sprint is ranked on six rungs: city, county, region, country, continent, world. After every sprint you see exactly what you climbed — "5th → 2nd · Rhône" — and how many points you need to overtake the next player. Only your nickname, city and scores are published. Never your exact location.

DUEL ON ONE PHONE
Two players, the same questions in the same order, 30 seconds each. Scores are revealed at the end.

YOUR PROGRESS, VISIBLE
XP, overall level, accuracy, day streak, seven-day chart, level per topic and session history. A Home Screen widget shows your daily goal and starts a sprint in one tap.

WHAT STAYS WITH YOU
Your progress lives on your iPhone, in the app's storage. No account. Anonymous usage counters, which you can switch off in Settings, only tell us where the app gets stuck.

Fractions and decimals accepted on the keypad. Light, dark or automatic appearance. Available in 49 languages.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Who is it for?
Anyone who wants to get faster at everyday mental math, from students to adults. It is not a preparation for a specific exam.

Do I need to pay?
You can answer a few questions during setup. Full sessions require Numvolt Pro, with the price in your currency shown before you pay.

## Key features

- 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

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Numvolt Pro Yearly | $14.99 | per year |
| Numvolt Pro Weekly | $2.99 | per 7 days |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Numvolt Pro | $24.99 | one-time |


## Is Numvolt safe?

Not enough ratings yet to assess Numvolt.

## Is Numvolt legit?

Numvolt: Mental Math Practice appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Numvolt is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Frequently asked questions about Numvolt

### What is Numvolt?

Numvolt is a mental math practice application designed to help users improve their skills in arithmetic, fractions, percentages, and algebra through various drills and exercises. It offers step-by-step solutions to understand methods and multiple practice modes.

### How does Numvolt's learning methodology work?

Numvolt offers 150 rungs across 15 topics, with difficulty adjusting during sessions. After mistakes or slow answers, it provides step-by-step explanations to understand mental math methods, with a Zen mode available for unhurried learning.

### What are the subscription options for Numvolt Pro?

Full access to Numvolt's sessions requires Numvolt Pro, available via a weekly subscription for $2.99 with a 3-day free trial, or a yearly subscription for $14.99 with a 7-day free trial. A one-time lifetime purchase option is also available.

### Does Numvolt have ads?

No, Numvolt is ad-free. The description explicitly states 'No account and no ads,' ensuring an uninterrupted learning experience.

### How does Numvolt track user progress?

Numvolt tracks progress through XP, overall level, accuracy, day streaks, a seven-day chart, level per topic, and session history. A Home Screen widget is also available to display daily goals and start sprints.

### Is Numvolt available on multiple platforms?

Based on the provided data, Numvolt is available on iPhone and iPad, indicating compatibility with Apple's iOS ecosystem.

### What age rating does Numvolt have?

Numvolt has an age rating of 4+, making it suitable for young children and older users alike who wish to practice mental math.

### How often is Numvolt updated?

The latest version of Numvolt is 0.2.19, and it was last updated on November 5, 2026. This suggests a relatively recent update, though the frequency of future updates is not specified.

## Version history (last 5 releases)

### 0.2.19 — 2026-11-05

A brand new welcome: tell us your goal and what you want to work on, solve three real calculations and get your own plan. Pick your look from the start. New weekly plan.

### 0.2.18 — 2026-10-28

A warmer welcome, a step-by-step method after a mistake, and a short note before the offers.

### 0.2.17 — 2026-10-18

Try a few mental math questions during setup. Optional practice reminders follow your chosen days.

### 0.2.16 — 2026-10-16

Quelques calculs à essayer pendant l’accueil et des rappels facultatifs selon les jours choisis.

### 0.2.15 — 2026-10-12

Numvolt is now available in Gujarati, Malayalam and Odia, in addition to its other languages.

This update also fixes translations in several languages.

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| --- | --- | --- | --- |
| [Numina – Learn Mental Math](https://appshunter.io/ios/app/numina-learn-mental-math/id6761914306) | — | Free | Education |
| [Mental Math: Learn Math](https://appshunter.io/ios/app/mental-math-learn-math/id6809820085) | — | Free | Education |
| [DICTA Learning](https://appshunter.io/ios/app/dicta-learning/id6751761814) | 5.0 (6) | Free | Education |
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| [Mental Math Sprint: Brain Game](https://appshunter.io/ios/app/mental-math-sprint-brain-game/id6772115219) | — | Free | Education |
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All apps by ROMEO ILARIO FLAVIO GAMBINO: https://appshunter.io/developer/1874823696

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-06.*