# Formulus Free vs Calculus Solver

The clearest difference is in-app purchases: Formulus Free at none against Calculus Solver's 2. Formulus Free also leads on rating (5.0 vs 4.5) and review sentiment (81% vs 50%). Calculus Solver's advantage is ads (none vs shown). On price, ratings volume, update cadence and device support there is nothing between them.

Both are free to download. Calculus Solver sells 2 in-app purchases, starting at $5.99 per 7 days. Formulus Free asks for nothing beyond the download.

Formulus Free holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 5 and 13 respectively. Written reviews point the same way: 81% of Formulus Free's written reviews are positive against 50% of Calculus Solver's.

Formulus Free ships an update every 6 weeks, Calculus Solver every 2 months. The most recent releases landed on October 31, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Formulus Free | Calculus Solver |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/formulus-free/id309681718/reviews)** | [4.5 (13 ratings)](https://appshunter.io/ios/app/calculus-solver-math-helper/id6738013581/reviews) |
| Number of ratings | 5 | **13** |
| Positive reviews | **81.1% of reviews** | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | **Ad-supported** | Subscription |
| Size | 12 MB | 23 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | +4 | 4+ |
| Developer | [Daniel Byon](https://appshunter.io/developer/309681721) | [Renaissance Apps LLC](https://appshunter.io/developer/1220536592) |

## What reviewers say

### Formulus Free

[App page](https://appshunter.io/ios/app/formulus-free/id309681718)

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.

**Highlights:** Calculus formula collection, Algebra and Geometry formulas, Derivatives, Integrals, Limits, Trigonometry, Vectors

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 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

**What reviewers complain about**

- 🐛 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

**Reported bugs**

- 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

**Requested features**

- 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


### Calculus Solver

[App page](https://appshunter.io/ios/app/calculus-solver-math-helper/id6738013581)

Instantly solve calculus problems with AI-powered step-by-step explanations. Upload or photograph your math questions and receive detailed solutions covering derivatives, integrals, and more. A free trial is available before subscribing.

**Highlights:** AI-powered problem solving, Photo recognition for problems, Detailed step-by-step solutions, Covers derivatives and integrals, Copy and share solutions, Free trial available

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calculus Answers: Weekly Sub | $5.99 | per 7 days |
| Calculus Answers: Weekly Sub | $34.99 | per year |


## Frequently asked questions

### Is Formulus Free free?

Formulus Free is free to download, with no in-app purchases.

### Is Calculus Solver free?

Calculus Solver is free to download, with in-app purchases available.

### Which has better reviews, Formulus Free or Calculus Solver?

Formulus Free is rated higher. Formulus Free averages 5.0 out of 5 from 5 ratings, while Calculus Solver averages 4.5 from 13 ratings.

### Do Formulus Free or Calculus Solver have ads?

Formulus Free shows ads; Calculus Solver does not.

### Which is updated more often, Formulus Free or Calculus Solver?

Formulus Free ships an update every 6 weeks, and Calculus Solver every 2 months. Most recently, Formulus Free was updated on October 31, 2026 and Calculus Solver on October 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*