# Formulus Free vs iformula

The clearest difference is rating: Formulus Free at 5.0 against iformula's 4.0. Formulus Free also leads on review sentiment (81% vs 65%) and ratings volume (5 vs 1). iformula's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, update cadence, in-app purchases and device support there is nothing between them.

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 4.0. That said, the two scores are not equally well evidenced: Formulus Free has 5 ratings behind it against 1, 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 65% of iformula's.

Formulus Free ships an update every 6 weeks, iformula every 2 months. The most recent releases landed on October 7, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Formulus Free | iformula |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/formulus-free/id309681718/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/iformula/id325337275/reviews) |
| Number of ratings | **5** | 1 |
| Positive reviews | **81.1% of reviews** | 65.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Ad-supported | **Free** |
| Size | 12 MB | 59 MB |
| Requires iOS | **14.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | +4 | 4+ |
| Developer | [Daniel Byon](https://appshunter.io/developer/309681721) | [Tobias Werner](https://appshunter.io/developer/325337278) |

## 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


### iformula

[App page](https://appshunter.io/ios/app/iformula/id325337275)

This app is a comprehensive math learning platform for students and professionals. It offers a vast library of over 1000 math equations and topics, along with features like search, note-taking, and bookmarking. It aims to eliminate the need for physical math textbooks.

**Highlights:** 1000+ math equations and topics, Full-featured search functionality, Note-taking system, Bookmarking for favorite equations, Dual language support (English & German), Dark mode support

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

**In-app purchases:** none


## Frequently asked questions

### Is Formulus Free free?

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

### Is iformula free?

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

### Which has better reviews, Formulus Free or iformula?

Formulus Free is rated higher. Formulus Free averages 5.0 out of 5 from 5 ratings, while iformula averages 4.0 from 1 ratings.

### Do Formulus Free or iformula have ads?

Formulus Free shows ads; iformula does not.

### Which is updated more often, Formulus Free or iformula?

Formulus Free ships an update every 6 weeks, and iformula every 2 months. Most recently, Formulus Free was updated on October 7, 2026 and iformula on October 13, 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.*