Formulus Free vs Math Interactive
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Formulus Free
Access a comprehensive collection of essential math formulas for high school and college calculus students. Quickly find the formulas you need without flipping through textbooks or searching online.
- Calculus formula collection
- Algebra and Geometry formulas
- Derivatives
- Integrals
- Limits
- Trigonometry
- Vectors
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Have you ever needed to know that one math formula that you always forget? Do you spend minutes flipping through your textbook or searching the internet for it? Then you need Formulus! Formulus is the perfect study tool. It is a simple, easy to use, easy to navigate collection of the most important formulas and topics for high school and college students taking Calculus. Includes the following subject areas: - Algebra & Geometry - Derivatives - Functions - Integrals - Limits - Logarithms - Matrices - Partial Derivatives - Series & Sequences - Trigonometry - Vectors
Math Interactive
Enhance your mathematical understanding with a comprehensive reference covering 23 subjects, over 200 articles, and interactive illustrations. Explore detailed explanations, solved problems, and proofs to master concepts from algebra to calculus. Access all content and features with a premium upgrade.
- 23 math subjects covered
- Over 200 articles with detailed descriptions
- Solved solutions and thorough proofs
- Interactive illustrations for better understanding
- Quick search for articles and formulas
- Recents category to pick up where you left off
- Share articles via social media and messaging
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Improve your math skills and get a deeper understanding of mathematical concepts, definitions, formulas and proofs. With 23 subjects containing more than 200 articles with detailed descriptions, solved solutions and thorough proofs, this app is perfect for every high school student or any person eager to learn mathematics. Improve your intuition by exploring the interactive illustrations and learn how to solve both simple and difficult math problems through elegant solutions. Buy Premium to access all content and features. • Quickly search for the article or formula you need. • Use the links to read more on a subject. • Improve your understanding with interactive illustrations. • Pick up where you left off with the "Recents"-category. • Share an article via mail, iMessage, Facebook etc. • Jump to any section through the bottom navigation. • Enjoy the graceful and user-friendly design. The app covers the following 23 subjects: • Coordinate System • Differential Calculus • Differential Equations • Exponential Functions • Functions • Geometry • Geometry Terms • Hypothesis Testing • Integral Calculus • Linear Functions • Numbers and Algebra • Percentages • Power Functions • Probability • Quadratic Equation • Quadratic Polynomial • Regression and Growth • Solid Geometry • Statistics • The Straight Line • Trigonometry • Vectors in 2D • Vectors in 3D Space
Screenshots
Verdict
The clearest difference is in-app purchases: Formulus Free at none against Math Interactive's 1. Formulus Free also leads on update cadence (every 6 weeks vs every 13 months) and rating (5.0 vs 4.6). Math Interactive's advantage is ads (none vs shown) and ratings volume (726 vs 5). On price, device support and iOS requirement 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. Math Interactive sells 1 one-off in-app purchase. Formulus Free asks for nothing beyond the download.
Formulus Free holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Math Interactive has 726 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 81% of Formulus Free's written reviews are positive against 58% of Math Interactive's.
Formulus Free ships an update every 6 weeks, Math Interactive every 13 months. The most recent releases landed on October 7, 2026 and September 29, 2026 respectively.
| Parameter | Formulus Free | Math Interactive |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) — better | 4.6 (726 ratings) |
| Positive reviews | 81.1% of reviews — better | 58.3% of reviews |
| Number of ratings | 5 | 726 — better |
| Update frequency | Every 6 weeks — better | Every 13 months |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 46 MB |
| Age rating | +4 | 4+ |
| Developer | Daniel Byon | Rune Johannes Overgaard Hoejlund |
Customer experience
Formulus Free
Math Interactive
User reviews
Formulus Free
From 5 App Store ratingsWhat we love
- 👍 Excellent organization and easy navigation
- 🚀 Quick and convenient formula lookup
- 📚 Comprehensive coverage of calculus and math formulas
- 💰 Free app with extensive content
- 🎓 Great study and review tool for students
Room to improve
- 🐛 Frequent crashes and freezing issues
- 📱 Poor compatibility with larger iPhone screens
- ❌ Some formulas contain errors or typos
- 🔍 Missing several important formulas and topics
- 📊 No interactive features or worked examples
Math Interactive
From 726 App Store ratingsWhat we love
- 🚀 Quick and concise
- 👍 Great for math help and studying
- 👍 Excellent customer service
- 👍 Clear and comprehensive
- 👍 Interactive and well-designed
Room to improve
- 🐛 Lacking in content and topics
- 💰 Too much content locked behind paywall
- 🤔 Explanations could be more intuitive
- 🤔 Needs more examples and practice
Bugs and requests
Formulus Free
Reported bugs
13 issues- App crashes on startup after updates
- Freezing and lag issues during use
- Compatibility issues with larger iPhone screens
- Incorrect cross product entry formula
- Error in Simpson's rule integral approximation
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- Typo in power series expansion for cos(x)
- Incorrect absolute value notation in some formulas
- Change-of-base formula error
- Inconsistent header display (wrong category shown)
- Some formula entries are empty or incomplete
- Blurry image quality for some formulas
- Taylor series functionality not working
- App stops opening after certain updates
Requested features
15 requests- Add practice problems and worked examples
- Include inverse trigonometric functions
- Add 3D shapes and geometry formulas
- Implement search functionality for quick formula finding
- Add graphing and calculation capabilities
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- Include zoom feature for better readability
- Add definitions and learning explanations
- Separate Algebra and Geometry into distinct categories
- Allow users to add personal notes and corrections
- Support for multiple languages
- Remember app location when reopening
- Expand power series expansions section
- Include tabular integration by parts method
- Add radius of convergence information
- Include Euler's formula in complex numbers section
Math Interactive
Reported bugs
2 issues- Incorrect formulas and calculations
- Compatibility issues with newer iOS versions
Requested features
4 requests- Add more advanced math topics like calculus, matrices, etc.
- Include step-by-step solutions and more interactive elements
- Improve organization and flow of content
- Provide more real-world examples and applications
In-app purchases
Formulus Free
No in-app purchases
Math Interactive
- Premium$2.99
Questions
Is Formulus Free free?
Is Math Interactive free?
Which has better reviews, Formulus Free or Math Interactive?
Do Formulus Free or Math Interactive have ads?
Which is updated more often, Formulus Free or Math Interactive?
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