Flaaash vs Numvolt
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Flaaash
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Flaaash turns any subject into fast, effective flashcards you actually remember. Learn languages: Scottish Gaelic, Irish Gaelic, French, Spanish, German, Latin, Portuguese), Prepare for exams : CFA, French Baccalaureate Read entire all books at flash speed with audio flashcards, smart summaries, quizzes and mini-games. FEATURES - Native audio flashcards for real pronunciation - Smart AI tutors that adapts to how you learn - Flow-state techniques backed by neuroscience - Deep-dive audio podcasts on any topic - Create your own flashcard sets from any material with AI Subscribe to unlock full access to all content. Privacy Policy: https://www.superneat.app/privacy-policy/ Terms of Use (EULA): https://www.apple.com/legal/internal/terms/site/ios/terms.html
Numvolt
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.
- 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
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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.
Screenshots
Verdict
The clearest difference is iOS requirement: Flaaash at 15.0 against Numvolt's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Flaaash sells 2 in-app purchases, starting at $5.99 per month 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.
Flaaash ships an update every 5 days, Numvolt every 3 days. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.
| Parameter | Flaaash | Numvolt |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 5 days | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 6 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | SuperNeat | ROMEO ILARIO FLAVIO GAMBINO |
In-app purchases
Flaaash
- Monthly3 Days trial$5.991 Month
- Annual3 Days trial$49.991 Year
Numvolt
- Numvolt Pro Weekly3 Days trial$2.997 Days
- Numvolt Pro Yearly7 Days trial$14.991 Year
- Numvolt Pro$24.99







