# Calculator ∞ vs PocketCAS

The clearest difference is price: PocketCAS at Free against Calculator ∞'s $5.99. PocketCAS also leads on review sentiment (91% vs 75%). Calculator ∞'s advantage is ratings volume (6.4K vs 204) and chart position (#174 vs unranked). On rating, update cadence, ads and in-app purchases there is nothing between them.

PocketCAS is free to download; Calculator ∞ costs $5.99 up front. Calculator ∞ sells 4 in-app purchases, starting at $3.49 per month and PocketCAS sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Calculator ∞ against 4.6 for PocketCAS. That said, the two scores are not equally well evidenced: Calculator ∞ has 6.4K ratings behind it against 204, so its average is the more settled of the two. Written reviews are what separate them: 75% of Calculator ∞'s written reviews are positive against 91% of PocketCAS's.

Calculator ∞ ships an update every 2 months, PocketCAS every 3 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Calculator ∞ | PocketCAS |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| Rating | **[4.7 (6.4K ratings)](https://appshunter.io/ios/app/calculator/id458535809/reviews)** | [4.6 (204 ratings)](https://appshunter.io/ios/app/pocketcas-graphing-calculator/id517249689/reviews) |
| Number of ratings | **6.4K** | 204 |
| Positive reviews | 74.7% of reviews | **90.8% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#174** | — |
| Size | 46 MB | 42 MB |
| Requires iOS | **12.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Incpt.Mobis](https://appshunter.io/developer/445261166) | [Timing Software GmbH](https://appshunter.io/developer/333261118) |

## What reviewers say

### Calculator ∞

[App page](https://appshunter.io/ios/app/calculator/id458535809)

**Currently charting:** #174 Top Paid · Education (US App Store)

This advanced calculator app offers a powerful math core and algebra engine for basic to complex calculations. It includes features like step-by-step solutions, handwriting recognition, and 2D graphing, making it suitable for students, engineers, and programmers.

**Highlights:** Step-by-step solution hints, Math Photos Solver, Handwriting Recognition, AI Math Problem Solver, 2D Graphing, Unit Converter, Matrix/Vector Mode

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited OCR/Writing 1 Month | $3.49 | per month |
| Unlimited OCR/Writing 3 Months | $8.99 | per 3 months |
| 400 AI Recognition & Queries | $0.99 | one-time |
| 900 AI Recognition & Queries | $1.99 | one-time |


### 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

**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


## Frequently asked questions

### Is Calculator ∞ free?

Calculator ∞ costs $5.99, and also offers in-app purchases.

### Is PocketCAS free?

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

### Which has better reviews, Calculator ∞ or PocketCAS?

Calculator ∞ is rated higher. Calculator ∞ averages 4.7 out of 5 from 6.4K ratings, while PocketCAS averages 4.6 from 204 ratings.

### Do Calculator ∞ or PocketCAS have ads?

Neither Calculator ∞ nor PocketCAS shows ads.

### Which is updated more often, Calculator ∞ or PocketCAS?

Calculator ∞ ships an update every 2 months, and PocketCAS every 3 months. Most recently, Calculator ∞ was updated on October 26, 2026 and PocketCAS 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.*