# Calculus doodlus vs Calculator·

The clearest difference is ratings volume: Calculator· at 34K against Calculus doodlus's 584. Calculator· also leads on device support (4 vs 2) and iOS requirement (15.0 vs 17.0). Calculus doodlus's advantage is update cadence (every 6 weeks vs every 3 months). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Calculus doodlus sells 2 in-app purchases, starting at $4.99 per year and Calculator· sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for Calculus doodlus against 4.9 for Calculator·. That said, the two scores are not equally well evidenced: Calculator· has 34K ratings behind it against 584, so its average is the more settled of the two. Written reviews are what separate them: 82% of Calculus doodlus's written reviews are positive against 84% of Calculator·'s.

Calculus doodlus ships an update every 6 weeks, Calculator· every 3 months. The most recent releases landed on October 23, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Calculus doodlus | Calculator· |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (584 ratings)](https://appshunter.io/ios/app/calculus-doodlus/id465916328/reviews) | **[4.9 (34K ratings)](https://appshunter.io/ios/app/calculator/id554836784/reviews)** |
| Number of ratings | 584 | **34K** |
| Positive reviews | 81.9% of reviews | **84.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 13 MB | 47 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Stéphan Barbé](https://appshunter.io/developer/313949257) | [Tim O's Studios, LLC](https://appshunter.io/developer/412839685) |

## What reviewers say

### 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


### Calculator·

[App page](https://appshunter.io/ios/app/calculator/id554836784)

This app offers a straightforward calculation experience, focusing on essential functions without unnecessary complexity. It includes basic arithmetic, percentage calculations, and advanced functions like square root. Users can customize the appearance with multiple color schemes and utilize features like result copying and split-screen multitasking on iPad.

**Highlights:** Basic arithmetic operations, Percentage calculations, Multiple color schemes, Copy results, Square, square root, inverse functions, iPad Split View support, Apple Watch support

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade App | $0.99 | per month |
| Upgrade App | $4.99 | per year |
| Upgrade App | $1.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 🚀 Quick and responsive
- 💡 Percentage function works well
- 👍 Large, clear buttons
- 👍 Straightforward, no-frills design

**What reviewers complain about**

- 🔋 Frequent ads can be distracting
- 🐛 Occasional crashes or freezes
- 🔒 Lack of customization options
- 💡 No backspace/undo function
- 💡 Missing advanced features like memory

**Reported bugs**

- Crashes when performing long calculations
- Freezes when opening the app
- Incorrect results for some complex calculations

**Requested features**

- Add a backspace/undo button
- Implement a history/memory feature
- Provide more customization options
- Reduce frequency of ads


## Frequently asked questions

### Is Calculus doodlus free?

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

### Is Calculator· free?

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

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

Calculator· is rated higher. Calculus doodlus averages 4.8 out of 5 from 584 ratings, while Calculator· averages 4.9 from 34K ratings.

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

Both Calculus doodlus and Calculator· show ads.

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

Calculus doodlus ships an update every 6 weeks, and Calculator· every 3 months. Most recently, Calculus doodlus was updated on October 23, 2026 and Calculator· on October 26, 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.*