# PocketCAS vs Calculus

The clearest difference is review sentiment: PocketCAS at 91% against Calculus's 33%. PocketCAS also leads on rating (4.6 vs 3.5) and update cadence (every 3 months vs every 16 months). Calculus's advantage is iOS requirement (15.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PocketCAS sells 1 one-off in-app purchase and Calculus sells 13 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

PocketCAS holds the better App Store score, 4.6 against 3.5. That said, the two scores are not equally well evidenced: PocketCAS has 204 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 91% of PocketCAS's written reviews are positive against 33% of Calculus's.

PocketCAS ships an update every 3 months, Calculus every 16 months. The most recent releases landed on October 29, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | PocketCAS | Calculus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (204 ratings)](https://appshunter.io/ios/app/pocketcas-graphing-calculator/id517249689/reviews)** | [3.5 (4 ratings)](https://appshunter.io/ios/app/calculus-pro/id1638196645/reviews) |
| Number of ratings | **204** | 4 |
| Positive reviews | **90.8% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 16 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 42 MB | 40 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Timing Software GmbH](https://appshunter.io/developer/333261118) | [Richard Ssenyonjo](https://appshunter.io/developer/1528776742) |

## What reviewers say

### PocketCAS

[App page](https://appshunter.io/ios/app/pocketcas-graphing-calculator/id517249689)

This advanced math application assists with a wide range of mathematical problems, from basic arithmetic to calculus, algebra, and statistics. It functions as a graphing calculator replacement, aids in homework, and supports complex calculations for academic and professional use.

**Highlights:** 2D and 3D plotting, Calculus functions (limits, derivatives), Linear algebra operations, Equation solving, Scripting language, Physical units and constants, iCloud sync

**Features:** Family Sharing, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PocketCAS Pro | $29.99 | one-time |

**What reviewers like**

- 👍 Intuitive and user-friendly interface
- 📊 Excellent graphing capabilities with 3D visualization
- 💰 Free version available with substantial features
- 🧮 Powerful mathematical computation engine
- 📱 Convenient mobile alternative to expensive calculators

**What reviewers complain about**

- 🐛 Recent updates cause crashes on older documents
- 💸 Expensive compared to free alternatives
- 🔒 Limited free version functionality
- 🎮 Clunky interface in some areas
- ❌ Cannot plot certain advanced functions

**Reported bugs**

- App crashes when loading previously saved documents
- Crashes with no error feedback or debugging information
- Cannot plot certain mathematical functions
- Zoom scaling issues with 3D graphs (scales Z-axis incorrectly)
- Compatibility broken with iOS 6 after iOS 7 update

**Requested features**

- Dark theme/dark mode for UI
- Multiple polynomials on single graph
- Inverse button functionality
- Better zoom functionality for 3D graphs
- Improved documentation and tutorials


### Calculus

[App page](https://appshunter.io/ios/app/calculus-pro/id1638196645)

Learn calculus comprehensively through 10 chapters and reinforce your understanding with an interactive quiz game. This app caters to both beginners and advanced learners, offering hints and challenging problems. Enjoy a clear, adaptable interface with font size adjustments and light/dark mode support.

**Highlights:** 10-chapter calculus curriculum, Interactive calculus quiz game, Beginner to advanced learning paths, Adjustable font size, Light and dark mode support, Covers differentiation, integration, and differential equations

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Get 1,000 Coins | $0.99 | one-time |
| Get 5,000 Coins | $1.99 | one-time |
| Get 10,000 Coins | $2.99 | one-time |
| Unlock Calculus 1 | $2.99 | one-time |
| Unlock Calculus 2 | $2.99 | one-time |
| Unlock Calculus 3 | $2.99 | one-time |
| Unlock Chapter 5 | $2.99 | one-time |
| Unlock Calculus 8 | $2.99 | one-time |
| Unlock Calculus 9 | $2.99 | one-time |
| Unlock Calculus 4 | $2.99 | one-time |
| Unlock Calculus 6 | $2.99 | one-time |
| Unlock Calculus 7 | $2.99 | one-time |
| Unlock Calculus 10 | $2.99 | one-time |


## Frequently asked questions

### Is PocketCAS free?

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

### Is Calculus free?

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

### Which has better reviews, PocketCAS or Calculus?

PocketCAS is rated higher. PocketCAS averages 4.6 out of 5 from 204 ratings, while Calculus averages 3.5 from 4 ratings.

### Do PocketCAS or Calculus have ads?

Neither PocketCAS nor Calculus shows ads.

### Which is updated more often, PocketCAS or Calculus?

PocketCAS ships an update every 3 months, and Calculus every 16 months. Most recently, PocketCAS was updated on October 29, 2026 and Calculus on September 27, 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.*