Comparison

Calcula vs Japanese Language Learning

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Calcula

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
Read full description

Calcula is a focused mental math trainer built for daily practice. No ads, no clutter — just clean drills that get sharper the more you use them. Pick a mode, pick a length, and go. Five minutes a day is enough to feel the difference. FOUR GAME MODES • Standard — addition, subtraction, multiplication, division. Toggle on whichever you want to drill. • Percent — find X% of a number. Built for tips, discounts, and quick estimates. • Squared — squares, cubes, and square roots. • Sequence — spot the pattern and predict what comes next. THREE ANSWER STYLES • Type — punch the answer on a clean keypad. • Reveal — solve in your head, then self-grade. • Multiple Choice — pick from four options. Switch between them anytime to match how you want to practice. FLEXIBLE SESSIONS Choose time-based (30s, 1m, 3m, 5m, or unlimited) or solve-based (10, 20, 40, 100, or unlimited) sessions. Quick warm-up or long focus block — your call. FOUR DIFFICULTIES Easy, Medium, Hard, Insane. The numbers scale with you. Insane is exactly what it sounds like. STREAKS, LEVELS, AND AWARDS • Set a daily goal and build a streak. • Earn XP for every correct answer and level up. • Unlock 12 achievements — from First Steps (100 solved) to Iron Will (a 30-day streak) to Insane Master. DETAILED STATS See your accuracy, average solve time, lifetime totals, per-operation breakdowns, and best runs. Watch yourself get faster. DESIGNED FOR FOCUS • Beautiful light and dark themes built around a single accent color. • No accounts, no ads, no tracking, no notifications you didn't ask for. • Everything stays on your device. Calcula is for anyone who wants to keep their head sharp — students prepping for tests, professionals who do math on the fly, parents brushing up alongside their kids, and anyone who just enjoys a clean mental workout.

About

Japanese Language Learning

Features
Read full description

This app will help you learn to read, write, and pronounce words and phrases. It's a fun and easy-to-use educational game that includes thousands of words and phrases that provide you with knowledge in real-world situations. The app is categorized into 100 topics, covering aspects of daily life and travel situations. Why this application? - Teach you all the words and phrases that really matter. - It consists of smart games that improve your speaking, reading, listening, and writing skills. - It can count the correct and wrong answers for each educational game. - Multilingual interface (100). Application contents - Nouns and verbs. - Adjectives and antonyms. - Names of body parts. - Animal and birds. - Fruits and vegetables. - Clothes and accessories. - Communications and technology. - Devices and tools. - Education and sports. - Entertainment and media. - Feelings and experience. - Health and exercise. - House and Kitchen. - Places and buildings. - Travel and transportation. - Work and job. - Days and months. - Shapes and colors. - Accommodations and general expressions. - Difficulties in making friends. - Location and greeting. - Emergency and health. - Entertainment and general questions. - Numbers and money. - Phone, internet, and mail. - Shopping and food. - Time and dates. - Travel and directions. Test - Listen to a word. - Writing characters. - Translate a phrase. - A missing word from a sentence. - Words order. - Memory exam. PLEASE NOTE You will need a subscription in order to get access to all of this app’s courses and features. Subscription options: - 1-month subscription for $US6.99 (or the equivalent in local currency), automatically renewed until canceled. - 6-months subscription for $US7.99 (or the equivalent in local currency), automatically renewed until canceled. - 12-months subscription for $US8.99 (or the equivalent in local currency), automatically renewed until canceled. Your subscription will automatically renew unless auto-renew is turned off at least 24 hours before the end of the current payment period. Your iTunes account will be automatically charged at the same price for renewal within the 24-hour period prior to the end of the current payment period unless you change your subscription preferences in your Account Settings. Payment will be charged to iTunes Account at confirmation of purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. You can manage your subscriptions through your Account Settings after purchase. When a subscription is canceled, access to the app’s courses and features will expire at the end of the current payment period. Privacy Policy: https://sites.google.com/view/hosy-academy/privacy-policy Terms of Service: https://sites.google.com/view/hosy-academy/terms-of-service Have questions or suggestions? Feel free to contact us at hosy.developer@gmail.com

Screenshots

Calcula4 screens
Japanese Language Learning4 screens

Verdict

The call

The clearest difference is in-app purchases: Calcula at none against Japanese Language Learning's 3. Calcula also leads on ads (none vs shown) and update cadence (every 4 weeks vs every 16 months). Japanese Language Learning's advantage is device support (3 vs 1) and iOS requirement (15 vs 26.0). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Japanese Language Learning sells 3 in-app purchases, starting at $6.99 per month. Calcula asks for nothing beyond the download.

UpkeepUpdate frequency

Calcula ships an update every 4 weeks, Japanese Language Learning every 16 months. Both last shipped on November 3, 2026.

Scorecard5 real differences · 5 level
Calcula versus Japanese Language Learning: the parameters behind the verdict, then further details
ParameterCalculaJapanese Language Learning
PriceFreeFree
Rating4.6 (10 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings10 — better—
Update frequencyEvery 4 weeks — betterEvery 16 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS26.015 — better
Further details — not scored
Size7 MB50 MB
Age rating4+4+
DeveloperRaj PandyaImad Al-Zaidi.

In-app purchases

None

Calcula

No in-app purchases

3 purchases

Japanese Language Learning

Subscriptions3
  • Unlock Features$6.991 Month
  • Unlock Features$7.996 Months
  • Unlock Features$8.991 Year

Questions

Is Calcula free?
Calcula is free to download, with no in-app purchases.
Is Japanese Language Learning free?
Japanese Language Learning is free to download, with in-app purchases available.
Do Calcula or Japanese Language Learning have ads?
Japanese Language Learning shows ads; Calcula does not.
Which is updated more often, Calcula or Japanese Language Learning?
Calcula ships an update every 4 weeks, and Japanese Language Learning every 16 months. Most recently, Calcula was updated on November 3, 2026 and Japanese Language Learning on November 3, 2026.

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