Modulo Calculator. vs Think in Numbers
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Modulo Calculator.
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The Modulo Calculator app lets you calculate the modulo of two numbers. Modulo operation is the remainder after division of one number by another. This is often needed by programmers and computer scientists. • Short form of Modulo operation is mod and the symbol is %. • Support for exponential notation (^ power) • Support for calculations including: inverse (^-1), addition, subtraction, multiplication and division • Support for decimal numbers • See how the modulo operation result differs between different modulo definitions used by programming languages • Supported modulo definitions: Euclidean Modulo, Truncated Modulo and Floored Modulo • See how many times the second number fits in the first one • Lets you copy the result to your clipboard • Light and dark mode
Think in Numbers
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Make numbers second nature with a little practice every day. Think in Numbers is a focused mental arithmetic game, with no ads and no account. CLASSIC STAYS FREE Every original feature stays free: unlimited addition, subtraction, multiplication, division and mixed play; Easy, Medium, Hard and Extreme difficulties; three answer choices; score and streak bonuses; best scores, accuracy and elapsed time; pause, saved games and result sharing. Your existing scores and preferences carry forward. GROW WITH NUMBERS PLUS An optional auto-renewing subscription adds: • Eight practice areas: the four core operations, percentages, fractions, negative numbers and missing-number equations. • A fresh ten-question daily workout, daily streaks and a 30-day archive. • Smart practice that focuses on less-practiced or weaker skills and adjusts difficulty as you answer. • A 60-second sprint to challenge your own pace. • Custom workouts with your chosen skills, difficulty, question count and multiplication tables from 1 to 20. • Clear answer explanations and a personal mistake-review queue. • Accuracy charts, skill summaries, daily goals, milestones and recent workout history. • CSV progress export and Ocean, Rose, Forest and Sunset training themes. Practice and progress are stored on your device. Classic and training questions work offline; an internet connection is needed to purchase or restore subscriptions through Apple. No login, analytics, ads or AI provider is required. Both monthly and yearly Numbers Plus plans unlock the same features. Payment is charged to your Apple Account at confirmation. Subscriptions renew automatically unless canceled at least 24 hours before the current period ends. Manage or cancel in Apple Account settings. Restore Purchases is available in the app. Classic stays free if you cancel. Privacy: https://oanarinaldi.com/thinkinnumbersprivacy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is ads: Think in Numbers at none against Modulo Calculator.'s shown. Modulo Calculator.'s advantage is iOS requirement (12.0 vs 26.0). On price, update cadence, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.
Modulo Calculator. ships an update every 4 months, Think in Numbers every 5 months. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.
| Parameter | Modulo Calculator. | Think in Numbers |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 months — better | Every 5 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 29 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Milos Lukas Ziolkowski | OANA RINALDI |
In-app purchases
Modulo Calculator.
No in-app purchases
Think in Numbers
No in-app purchases
Questions
Is Modulo Calculator. free?
Is Think in Numbers free?
Do Modulo Calculator. or Think in Numbers have ads?
Which is updated more often, Modulo Calculator. or Think in Numbers?
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