# iformula pro vs Algebra I Quick Reference

The clearest difference is in-app purchases: Algebra I Quick Reference at none against iformula pro's 1. Algebra I Quick Reference also leads on price ($0.99 vs $2.99) and iOS requirement (12.0 vs 17.6). iformula pro's advantage is update cadence (every 4 months vs every 36 months). On ads and device support there is nothing between them.

iformula pro costs $2.99 and Algebra I Quick Reference $0.99 up front. iformula pro sells 1 one-off in-app purchase. Algebra I Quick Reference asks for nothing beyond the download.

iformula pro ships an update every 4 months, Algebra I Quick Reference every 36 months. The most recent releases landed on October 7, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | iformula pro | Algebra I Quick Reference |
| --- | --- | --- |
| Price | $2.99 | **$0.99** |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/iformula-pro/id327888781/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 55.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 36 months |
| Monetization | Paid | — |
| Size | 88 MB | 4 MB |
| Requires iOS | 17.6 | **12.0** |
| Devices | **iPhone, iPad** | iPad |
| Age rating | 17+ | 4+ |
| Developer | [Tobias Werner](https://appshunter.io/developer/325337278) | [Ventura Educational Systems](https://appshunter.io/developer/371324172) |

## What reviewers say

### iformula pro

[App page](https://appshunter.io/ios/app/iformula-pro/id327888781)

This comprehensive math learning platform offers over 4000 equations and functions across various advanced topics. It features a powerful search, a scientific calculator, note-taking, and bookmarking capabilities to aid academic study and professional reference.

**Highlights:** Over 4000 math equations, Full-featured equation search, New scientific calculator, Notes system, Bookmarking for favorite equations, Dual language support (English & German)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| draw function graph | $0.99 | one-time |


### Algebra I Quick Reference

[App page](https://appshunter.io/ios/app/algebra-i-quick-reference/id560359498)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iformula pro free?

iformula pro costs $2.99, and also offers in-app purchases.

### Is Algebra I Quick Reference free?

Algebra I Quick Reference costs $0.99, with no in-app purchases.

### Do iformula pro or Algebra I Quick Reference have ads?

Neither iformula pro nor Algebra I Quick Reference shows ads.

### Which is updated more often, iformula pro or Algebra I Quick Reference?

iformula pro ships an update every 4 months, and Algebra I Quick Reference every 36 months. Most recently, iformula pro was updated on October 7, 2026 and Algebra I Quick Reference on October 6, 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.*