# Calculator # vs Calculus doodlus

The clearest difference is ratings volume: Calculator # at 36K against Calculus doodlus's 584. Calculator # also leads on iOS requirement (12.1 vs 17.0). Calculus doodlus's advantage is review sentiment (82% vs 60%). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Calculator # sells 6 in-app purchases, starting at $1.49 per month and Calculus doodlus sells 2 in-app purchases, starting at $4.99 per year. Whichever you choose, the download price is not the number that matters.

Calculus doodlus holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Calculator # has 36K ratings behind it against 584, so its average is the more settled of the two. Written reviews point the same way: 60% of Calculator #'s written reviews are positive against 82% of Calculus doodlus's.

Calculator # ships an update every 2 months, Calculus doodlus every 6 weeks. The most recent releases landed on October 25, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Calculator # | Calculus doodlus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (36K ratings)](https://appshunter.io/ios/app/calculator/id458535080/reviews) | **[4.8 (584 ratings)](https://appshunter.io/ios/app/calculus-doodlus/id465916328/reviews)** |
| Number of ratings | **36K** | 584 |
| Positive reviews | 59.5% of reviews | **81.9% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 57 MB | 13 MB |
| Requires iOS | **12.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Incpt.Mobis](https://appshunter.io/developer/445261166) | [Stéphan Barbé](https://appshunter.io/developer/313949257) |

## 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


### Calculus doodlus

[App page](https://appshunter.io/ios/app/calculus-doodlus/id465916328)

This app offers a multi-page calculator with automatic saving and advanced functions like percentage and VAT calculation. It uniquely presents calculations in an interactive, handwritten style that can be customized with your own script.

**Highlights:** Multi-page interface, Automatic work saving, Percentage calculation, VAT calculation, Customizable handwriting style, Interactive calculation pages

**Features:** Family Sharing, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | per year |
| Remove Ads | $0.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Efficient and fast
- 💡 Customizable handwritten numbers
- 📋 Keeps calculation history
- 🔢 Helpful percentage calculations

**What reviewers complain about**

- 🐛 Crashes and freezes
- 🔍 Difficult to delete past calculations
- 💤 Slow performance after updates
- 🔧 Lacks advanced features

**Reported bugs**

- Calculation results not displaying correctly
- App crashing on launch for some users
- Handwritten numbers not registering properly

**Requested features**

- Add ability to edit/delete individual calculations
- Implement a dark mode option
- Include more advanced math functions
- Allow copying/pasting of individual numbers
- Improve multitasking support


## Frequently asked questions

### Is Calculator # free?

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

### Is Calculus doodlus free?

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

### Which has better reviews, Calculator # or Calculus doodlus?

Calculus doodlus is rated higher. Calculator # averages 4.6 out of 5 from 36K ratings, while Calculus doodlus averages 4.8 from 584 ratings.

### Do Calculator # or Calculus doodlus have ads?

Both Calculator # and Calculus doodlus show ads.

### Which is updated more often, Calculator # or Calculus doodlus?

Calculator # ships an update every 2 months, and Calculus doodlus every 6 weeks. Most recently, Calculator # was updated on October 25, 2026 and Calculus doodlus on October 23, 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.*