# Calculator ∞ vs Dur e Mansoor Pro

The clearest difference is in-app purchases: Dur e Mansoor Pro at none against Calculator ∞'s 4. Dur e Mansoor Pro also leads on price ($0.99 vs $5.99). Calculator ∞'s advantage is update cadence (every 2 months vs every 75 months) and chart position (#144 vs unranked). On ads and device support there is nothing between them.

Calculator ∞ costs $5.99 and Dur e Mansoor Pro $0.99 up front. Calculator ∞ sells 4 in-app purchases, starting at $3.49 per month. Dur e Mansoor Pro asks for nothing beyond the download.

Calculator ∞ ships an update every 2 months, Dur e Mansoor Pro every 75 months. The most recent releases landed on October 14, 2026 and August 13, 2026 respectively.

## The numbers

| Metric | Calculator ∞ | Dur e Mansoor Pro |
| --- | --- | --- |
| Price | $5.99 | **$0.99** |
| Rating | **[4.7 (6.3K ratings)](https://appshunter.io/ios/app/calculator/id458535809/reviews)** | — |
| Number of ratings | **6.3K** | — |
| Positive reviews | 74.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 75 months |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#144** | — |
| Size | 46 MB | 71 MB |
| Requires iOS | **12.1** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Incpt.Mobis](https://appshunter.io/developer/445261166) | [Akhzar Nazir](https://appshunter.io/developer/1097519044) |

## What reviewers say

### Calculator ∞

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

**Currently charting:** #144 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 |


### Dur e Mansoor Pro

[App page](https://appshunter.io/ios/app/dur-e-mansoor-pro/id1517589768)

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

**In-app purchases:** none


## Frequently asked questions

### Is Calculator ∞ free?

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

### Is Dur e Mansoor Pro free?

Dur e Mansoor Pro costs $0.99, with no in-app purchases.

### Do Calculator ∞ or Dur e Mansoor Pro have ads?

Neither Calculator ∞ nor Dur e Mansoor Pro shows ads.

### Which is updated more often, Calculator ∞ or Dur e Mansoor Pro?

Calculator ∞ ships an update every 2 months, and Dur e Mansoor Pro every 75 months. Most recently, Calculator ∞ was updated on October 14, 2026 and Dur e Mansoor Pro on August 13, 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.*