# iformula pro vs Terminal Drill

The clearest difference is price: Terminal Drill at Free against iformula pro's $2.99. Terminal Drill also leads on update cadence (every 5 weeks vs every 4 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Terminal Drill is free to download; iformula pro costs $2.99 up front. iformula pro sells 1 one-off in-app purchase and Terminal Drill sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

iformula pro ships an update every 4 months, Terminal Drill every 5 weeks. The most recent releases landed on September 11, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | iformula pro | Terminal Drill |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| 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 | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 weeks** |
| Monetization | Paid | — |
| Size | 88 MB | 7 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Tobias Werner](https://appshunter.io/developer/325337278) | [Richard Ziolkowski](https://appshunter.io/developer/1895455279) |

## 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 |


### Terminal Drill

[App page](https://appshunter.io/ios/app/terminal-drill/id6763718668)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Terminal Drill - Full Access | $3.99 | one-time |


## Frequently asked questions

### Is iformula pro free?

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

### Is Terminal Drill free?

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

### Do iformula pro or Terminal Drill have ads?

Neither iformula pro nor Terminal Drill shows ads.

### Which is updated more often, iformula pro or Terminal Drill?

iformula pro ships an update every 4 months, and Terminal Drill every 5 weeks. Most recently, iformula pro was updated on September 11, 2026 and Terminal Drill on September 5, 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.*