The Math Gym vs NihonGo
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
The Math Gym
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Welcome to The Math Gymβyour daily workout to boost calculation speed and accuracy! Practice the four basic operations (addition, subtraction, multiplication, division) across multiple difficulty levels. The app automatically saves your session history, offering detailed progress tracking. Whether youβre a student building math confidence or an adult refreshing your mental arithmetic, just 5 minutes a day makes a difference. Multilingual support in Traditional Chinese, Simplified Chinese, English, and Japanese makes it accessible worldwide. Terms of Use: https://app.toolset.biz/themathgym/terms-en.html Privacy Policy: https://app.toolset.biz/themathgym/privacy-en.html
NihonGo
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Same word. Two meanings. Can you hear the difference? hashi is chopsticks - or a bridge. ame is rain - or candy. The only difference is the pitch: the melody of high and low that Japanese textbooks never teach. NihonGo trains your ear to hear it, and your voice to say it. EAR SPRINT - 60 seconds a day A fast two-choice listening game. Hear a word, pick what it was. 36 minimal pairs, including the ones that only separate when a particle follows. One sprint keeps your streak safe - no guilt, ever. PATTERN DRILL - name the shape Hear a word and say which of the four accent types it is: atamadaka, nakadaka, odaka or heiban. 611 words, drawn evenly across all four so no pattern can hide. PITCH KARAOKE - say it and see it Hold the mic, say the word, and watch your pitch fly across the screen. Your voice is analyzed on-device in real time - nothing is recorded or uploaded. HOW THE AUDIO WAS MADE Every word's accent comes from the OpenJTalk accent dictionary. Then every recording was measured - the actual pitch curve checked against the accent it claims to teach. Words whose audio did not match were thrown out. 818 recorded, 611 kept. Nothing here is guessed. HONEST SCORING No fake praise. We show your pitch, mora by mora, against the target - where you rose, where you fell, and by how much. When you score well, you earned it. 100% OFFLINE, 100% PRIVATE Every sound ships with the app. No account, no cloud, no sync. Works on a plane. NIHONGO PRO Unlocks all training. Starts with a 7-day free trial, then monthly, yearly, or a one-time lifetime purchase. Made with headphones, not textbooks. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is ads: NihonGo at none against The Math Gym's shown. NihonGo also leads on update cadence (every 3 days vs every 2 months). The Math Gym's advantage is iOS requirement (13.0 vs 15.0). On price, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. The Math Gym sells 1 in-app purchase, starting at $3.99 per month and NihonGo sells 3 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.
The Math Gym ships an update every 2 months, NihonGo every 3 days. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.
| Parameter | The Math Gym | NihonGo |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 3 days β better |
| Ads | Yes | No β better |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 β better | 15.0 |
| Further details β not scored | ||
| Size | 56 MB | 76 MB |
| Age rating | 4+ | 4+ |
| Developer | CHIN CHIH CHIU | AMOR Limited Liability Company |
In-app purchases
The Math Gym
- The Math Gym Pro (Monthly)7 Days trial$3.991 Month
NihonGo
- Nihongo Pro Monthly7 Days trial$8.991 Month
- Nihongo Pro Yearly7 Days trial$59.991 Year
- Nihongo Pro Lifetime$129.99
Questions
Is The Math Gym free?
Is NihonGo free?
Do The Math Gym or NihonGo have ads?
Which is updated more often, The Math Gym or NihonGo?
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