# Calculus doodlus vs Calculator 17

The clearest difference is review sentiment: Calculus doodlus at 82% against Calculator 17's 22%. Calculus doodlus also leads on rating (4.8 vs 4.6). Calculator 17's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price, ratings volume, device support and iOS requirement there is nothing between them.

Both are free to download. Calculus doodlus sells 2 in-app purchases, starting at $4.99 per year. Calculator 17 asks for nothing beyond the download.

Calculus doodlus holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 580 and 971 respectively. Written reviews point the same way: 82% of Calculus doodlus's written reviews are positive against 22% of Calculator 17's.

Calculus doodlus ships an update every 6 weeks, Calculator 17 every 4 days. The most recent releases landed on October 15, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Calculus doodlus | Calculator 17 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (580 ratings)](https://appshunter.io/ios/app/calculus-doodlus/id465916328/reviews)** | [4.6 (971 ratings)](https://appshunter.io/ios/app/calculator-17-math-solver/id6452015902/reviews) |
| Number of ratings | 580 | **971** |
| Positive reviews | **81.9% of reviews** | 21.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 4 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 13 MB | 5 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Stéphan Barbé](https://appshunter.io/developer/313949257) | [AI APPS SRL](https://appshunter.io/developer/1697892814) |

## 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 17

[App page](https://appshunter.io/ios/app/calculator-17-math-solver/id6452015902)

This app offers a user-friendly calculator with basic and scientific modes. Access calculations instantly via a home screen widget and review past computations in a saved history.

**Highlights:** User-friendly interface, Basic and scientific modes, Home screen widget, LiveActivity Standby for iPhone, Calculation history, Customizable themes

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

**In-app purchases:** none

**What reviewers like**

- 👍 Convenient and easy to use
- 💡 Excellent free app

**What reviewers complain about**

- 🐛 Keyboard not functioning properly
- 🐛 Widget not working or slow
- 🐛 Screen sizing issues
- 🐛 Only works in portrait mode on iPad

**Reported bugs**

- Widget shows up blank
- Numerical display is cut off
- Significant delay between key presses and display update

**Requested features**

- Add landscape mode support
- Improve widget responsiveness
- Increase bracket functionality


## Frequently asked questions

### Is Calculus doodlus free?

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

### Is Calculator 17 free?

Calculator 17 is free to download, with no in-app purchases.

### Which has better reviews, Calculus doodlus or Calculator 17?

Calculus doodlus is rated higher. Calculus doodlus averages 4.8 out of 5 from 580 ratings, while Calculator 17 averages 4.6 from 971 ratings.

### Do Calculus doodlus or Calculator 17 have ads?

Calculus doodlus shows ads; Calculator 17 does not.

### Which is updated more often, Calculus doodlus or Calculator 17?

Calculus doodlus ships an update every 6 weeks, and Calculator 17 every 4 days. Most recently, Calculus doodlus was updated on October 15, 2026 and Calculator 17 on October 17, 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.*