SLICE vs Inkulus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SLICE
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Never a numbers person? Try pies. SLICE turns math into pie puzzles you can see. Watch a short lesson, then play it: fill pies, cut them into equal slices, spin a spinner or read a pie chart. Two minutes a day is enough. 5 LEARNING PATHS, 161 PUZZLES — ALL FREE • Foundations: fractions, decimals, percent, angles and clock time • Fraction Operations: add unlike slices, take a slice of a slice • Ratio & Proportion: share in a ratio, scale a recipe up • Percent & Money: discounts, tips and "what percent?" • Probability & Stats: spinner chances and pie charts SEE IT, THEN PLAY IT Every world starts with a short animated lesson. Pies split, merge and change color until the idea clicks. Then you try it yourself. ONE PIE, MANY NAMES 1/2 = 0.5 = 50% = 180° = 30 min. Same size, same color, every time. A pie key shows how degrees, minutes and percent fit one whole pie. MISTAKES THAT TEACH Every puzzle says what to do in plain words. Make two mistakes and a "Why?" card shows what went wrong. Each win shows how the pieces add up. A LITTLE EVERY DAY • Set a daily goal of 1, 3 or 5 puzzles • Keep your learning streak. Freezes cover a missed day • A friendly reminder at the time you choose • A daily challenge that is the same for everyone, gentle on Monday and expert by Sunday • Game Center leaderboards and achievements • Progress syncs with iCloud COMPLETELY FREE Every learning path, world and puzzle is open to everyone, with no subscription. SLICE is supported by ads. Prefer no ads? Remove them forever with one small, one-time purchase. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://onebrightstudio.com/games/slice/privacy.html Made for curious minds of every age by One Bright Studio, a small independent studio.
Inkulus
This app makes learning calculus engaging and effective through interactive tutorials, competitive gameplay, and real-time feedback. It allows users to actively solve problems, track progress, and develop a deeper understanding of mathematical concepts.
- Interactive calculus tutorials
- Multiple game modes
- 1v1 math battles
- XP progression and statistics
- Drawing canvas for touch/Apple Pencil
- Active learning approach
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Inkulus – Learn Calculus the Interactive Way Inkulus is designed to make learning calculus more engaging, intuitive, and effective. By combining structured tutorials, competitive gameplay, and real-time feedback, Inkulus helps students move beyond memorization and develop a deeper understanding of mathematical concepts. Instead of studying passively, you actively solve problems, track your progress, and challenge yourself in a dynamic learning environment. Whether you are preparing for exams or strengthening your mathematical foundation, Inkulus turns calculus practice into an interactive experience. Learn by Doing Inkulus provides step-by-step tutorials that guide you through key calculus topics. Each lesson focuses on understanding the underlying concepts while giving you practical exercises to apply what you learn. Challenge Yourself Practice your skills across different game modes designed to test both accuracy and speed. For an extra challenge, compete in 1-on-1 math battles where you solve problems head-to-head with other learners. Track Your Progress Stay motivated with detailed gameplay statistics and an XP-based progression system. Monitor your improvement, identify areas to work on, and build confidence as you advance. Solve Naturally With a built-in drawing canvas that supports touch and Apple Pencil, you can write and solve problems just like on paper. This makes it easier to visualize calculations and work through complex problems step by step. Key Features • Interactive tutorials covering core calculus concepts • Multiple game modes for practice and competition • Real-time 1v1 math battles • XP progression and performance statistics • Advanced drawing canvas with touch and Apple Pencil support • Designed for students who want to learn actively Inkulus brings together education, competition, and gamification to create a new way of mastering calculus. Learn. Compete. Improve. Terms of Use: https://inkulus.com/#terms-of-service https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://inkulus.com/#privacy-policy
Screenshots
Verdict
The clearest difference is ads: Inkulus at none against SLICE's shown. SLICE's advantage is update cadence (every 6 days vs monthly) and iOS requirement (17.0 vs 26). On price, 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. SLICE sells 1 one-off in-app purchase and Inkulus sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.
SLICE ships an update every 6 days, Inkulus monthly. Both last shipped on November 5, 2026.
| Parameter | SLICE | Inkulus |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.0 (1 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 6 days — better | Monthly |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 — better | 26 |
| Further details — not scored | ||
| Size | 10 MB | 4 MB |
| Age rating | 9+ | 4+ |
| Developer | One Bright Studio | Teksum Development |
In-app purchases
SLICE
- Remove Ads$14.99
Inkulus
- Inkulus Pro Weekly$2.997 Days
- Inkulus Pro Monthly$7.991 Month
- Inkulus Pro Yearly$69.991 Year









