# iformula vs Xygos

The clearest difference is rating: Xygos at 4.7 against iformula's 4.0. Xygos also leads on update cadence (weekly vs every 2 months) and review sentiment (88% vs 65%). iformula's advantage is in-app purchases (none vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Xygos sells 1 in-app purchase, starting at $2.99 per 7 days. iformula asks for nothing beyond the download.

Xygos holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: Xygos has 39 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 65% of iformula's written reviews are positive against 88% of Xygos's.

iformula ships an update every 2 months, Xygos weekly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | iformula | Xygos |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/iformula/id325337275/reviews) | **[4.7 (39 ratings)](https://appshunter.io/ios/app/xygos-math-in-motion/id6451348655/reviews)** |
| Number of ratings | 1 | **39** |
| Positive reviews | 65.0% of reviews | **88.2% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 59 MB | 101 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tobias Werner](https://appshunter.io/developer/325337278) | [Xygos LLC](https://appshunter.io/developer/1671065233) |

## What reviewers say

### 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


### Xygos

[App page](https://appshunter.io/ios/app/xygos-math-in-motion/id6451348655)

Learn math interactively by solving problems directly on-screen with intuitive gestures. This app offers step-by-step solutions and real-time feedback for algebra and calculus, cutting learning time in half.

**Highlights:** Gesture-based problem solving, Step-by-step solutions, Real-time feedback and hints, Covers Calculus 1 and Algebra, Adaptive learning, Supports various math subjects

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Xygos Infinity | $2.99 | per 7 days |


## Frequently asked questions

### Is iformula free?

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

### Is Xygos free?

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

### Which has better reviews, iformula or Xygos?

Xygos is rated higher. iformula averages 4.0 out of 5 from 1 ratings, while Xygos averages 4.7 from 39 ratings.

### Do iformula or Xygos have ads?

Neither iformula nor Xygos shows ads.

### Which is updated more often, iformula or Xygos?

iformula ships an update every 2 months, and Xygos weekly. Most recently, iformula was updated on October 25, 2026 and Xygos on October 24, 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.*