Formulus Free vs AP Calculus AB Exam Study Prep
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
AP Calculus AB Exam Study Prep
Prepare for the AP Calculus AB exam with this comprehensive practice guide. It offers over 500 questions, offline access, and progress tracking features to help you study effectively. Review answers and focus on areas needing improvement.
- Over 500 practice questions
- Offline access
- Answer review
- Progress tracking
- Targeted practice on incorrect answers
- Customizable quizzes
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A great practice guide to get prepared for the AP Calculus test. Study for the AP Calculus exam and pass. More than 500 questions, all for free, forever! Here are some features: • No internet required • Hundreds of questions • A modern design • Review the answers • Keep the past tests to track progress • Only practice the questions you previously answered incorrectly • Practice more effectively by creating your own random quizzes This app is just a practice app and is not affiliated with College Board. • Disclaimer: We have made every attempt to ensure the accuracy and reliability of the information provided on this app. However, the information is provided "as is" without warranty of any kind.
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Verdict
The clearest difference is rating: Formulus Free at 5.0 against AP Calculus AB Exam Study Prep's 3.3. Formulus Free also leads on review sentiment (81% vs 50%) and update cadence (every 6 weeks vs every 5 months). On price, ratings volume, ads and in-app purchases 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.
Formulus Free holds the better App Store score, 5.0 against 3.3. Both are backed by a comparable volume of ratings — 5 and 3 respectively. Written reviews point the same way: 81% of Formulus Free's written reviews are positive against 50% of AP Calculus AB Exam Study Prep's.
Formulus Free ships an update every 6 weeks, AP Calculus AB Exam Study Prep every 5 months. The most recent releases landed on October 16, 2026 and October 6, 2026 respectively.
| Parameter | Formulus Free | AP Calculus AB Exam Study Prep |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) — better | 3.3 (3 ratings) |
| Positive reviews | 81.1% of reviews — better | 50.0% of reviews |
| Number of ratings | 5 — better | 3 |
| Update frequency | Every 6 weeks — better | Every 5 months |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 8 MB |
| Age rating | +4 | 4+ |
| Developer | Daniel Byon | Golden Mind Services LTD |
Customer experience
Formulus Free
AP Calculus AB Exam Study Prep
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
AP Calculus AB Exam Study Prep
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Formulus Free
No in-app purchases
AP Calculus AB Exam Study Prep
No in-app purchases
Questions
Is Formulus Free free?
Is AP Calculus AB Exam Study Prep free?
Which has better reviews, Formulus Free or AP Calculus AB Exam Study Prep?
Do Formulus Free or AP Calculus AB Exam Study Prep have ads?
Which is updated more often, Formulus Free or AP Calculus AB Exam Study Prep?
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