# iformula pro vs Calculus Problem & Quiz Solver

The clearest difference is price: Calculus Problem & Quiz Solver at Free against iformula pro's $2.99. Calculus Problem & Quiz Solver also leads on update cadence (every 3 weeks vs every 4 months) and iOS requirement (15.0 vs 17.6). On ads, in-app purchases and device support there is nothing between them.

Calculus Problem & Quiz Solver is free to download; iformula pro costs $2.99 up front. iformula pro sells 1 one-off in-app purchase and Calculus Problem & Quiz Solver sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

iformula pro ships an update every 4 months, Calculus Problem & Quiz Solver every 3 weeks. The most recent releases landed on October 14, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | iformula pro | Calculus Problem & Quiz Solver |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/iformula-pro/id327888781/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 45.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Paid | — |
| Size | 88 MB | 67 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Tobias Werner](https://appshunter.io/developer/325337278) | [Kukuh Nomikusain](https://appshunter.io/developer/1739975777) |

## 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 |


### Calculus Problem & Quiz Solver

[App page](https://appshunter.io/ios/app/calculus-problem-and-quiz-solver/id6757754410)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro (Weekly) | $4.99 | per 7 days |
| Pro (Yearly) | $29.99 | per year |


## Frequently asked questions

### Is iformula pro free?

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

### Is Calculus Problem & Quiz Solver free?

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

### Do iformula pro or Calculus Problem & Quiz Solver have ads?

Neither iformula pro nor Calculus Problem & Quiz Solver shows ads.

### Which is updated more often, iformula pro or Calculus Problem & Quiz Solver?

iformula pro ships an update every 4 months, and Calculus Problem & Quiz Solver every 3 weeks. Most recently, iformula pro was updated on October 14, 2026 and Calculus Problem & Quiz Solver on October 3, 2026.

---

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