# Calculator # vs CompSci Calculator

The clearest difference is in-app purchases: CompSci Calculator at none against Calculator #'s 6. CompSci Calculator also leads on update cadence (every 3 days vs every 2 months) and iOS requirement (10.0 vs 12.1). Calculator #'s advantage is ratings volume (36K vs 42). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Calculator # sells 6 in-app purchases, starting at $1.49 per month. CompSci Calculator asks for nothing beyond the download.

Calculator # holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Calculator # has 36K ratings behind it against 42, so its average is the more settled of the two. Written reviews complicate that: 60% of Calculator #'s written reviews are positive against 63% of CompSci Calculator's, so the app with the better star average is not the one people write more warmly about.

Calculator # ships an update every 2 months, CompSci Calculator every 3 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Calculator # | CompSci Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (36K ratings)](https://appshunter.io/ios/app/calculator/id458535080/reviews)** | [4.4 (42 ratings)](https://appshunter.io/ios/app/compsci-calculator/id1111878012/reviews) |
| Number of ratings | **36K** | 42 |
| Positive reviews | 59.5% of reviews | **62.5% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 57 MB | 55 MB |
| Requires iOS | 12.1 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Incpt.Mobis](https://appshunter.io/developer/445261166) | [Corey Smith](https://appshunter.io/developer/1070099434) |

## What reviewers say

### Calculator #

[App page](https://appshunter.io/ios/app/calculator/id458535080)

This multi-function calculator offers basic to advanced scientific and algebraic computations. It includes features like handwriting recognition, equation solvers, and 2D graphing, making it suitable for students and professionals. In-app purchases unlock advanced capabilities.

**Highlights:** Math Photos Solver, Handwriting Recognition, AI Math Problem Solver, Mathematical Display, Equation Solvers, 2D Graphing, Algebraic Functions

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Upgrade 1 Month | $1.49 | per month |
| PRO Upgrade 3 Months | $2.99 | per 3 months |
| PRO + Recognition 1 Month | $4.99 | per month |
| PRO + Recognition 3 Months | $11.99 | per 3 months |
| 250 AI Recognition & Queries | $0.99 | one-time |
| 600 AI Recognition & Queries | $1.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Powerful functionality
- 💡 Helpful for math classes
- ⭐ Great for students
- 👌 Works like a real calculator

**What reviewers complain about**

- 🔍 Confusing interface after update
- 📢 Too many intrusive ads
- 💰 Paywall for advanced features
- 🐛 Incorrect calculations
- 🔇 Loud audio ads

**Reported bugs**

- Crashes when trying to use certain functions
- Handwriting recognition not working reliably
- Inability to input negative numbers

**Requested features**

- Add option to turn off animation
- Improve ad placement to avoid obstructing usage
- Provide more transparency on paid features


### CompSci Calculator

[App page](https://appshunter.io/ios/app/compsci-calculator/id1111878012)

Perform calculations and conversions between decimal, hexadecimal, and binary bases in real-time. Ideal for programmers and computer scientists, it offers simultaneous display of values across all three modes and supports bitwise operations and complements.

**Highlights:** Decimal, hexadecimal, and binary base calculations, Real-time simultaneous conversion, Basic algebra between bases, Selectable bit size (8, 16, 24, 32), Bitwise functions, 1's and 2's complements

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

**In-app purchases:** none


## Frequently asked questions

### Is Calculator # free?

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

### Is CompSci Calculator free?

CompSci Calculator is free to download, with no in-app purchases.

### Which has better reviews, Calculator # or CompSci Calculator?

Calculator # is rated higher. Calculator # averages 4.6 out of 5 from 36K ratings, while CompSci Calculator averages 4.4 from 42 ratings.

### Do Calculator # or CompSci Calculator have ads?

Both Calculator # and CompSci Calculator show ads.

### Which is updated more often, Calculator # or CompSci Calculator?

Calculator # ships an update every 2 months, and CompSci Calculator every 3 days. Most recently, Calculator # was updated on October 24, 2026 and CompSci Calculator 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.*