# Calculus doodlus vs Calculator

The clearest difference is ads: Calculator at none against Calculus doodlus's shown. Calculator also leads on rating (5.0 vs 4.8) and iOS requirement (14.0 vs 17.0). Calculus doodlus's advantage is ratings volume (584 vs 3). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Calculus doodlus sells 1 in-app purchase, starting at $4.99 per year and Calculator sells 3 in-app purchases, starting at $6.00 per 7 days. Whichever you choose, the download price is not the number that matters.

Calculator holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Calculus doodlus has 584 ratings behind it against 3, so its average is the more settled of the two.

Calculus doodlus ships an update every 6 weeks, Calculator monthly. The most recent releases landed on November 1, 2026 and October 31, 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) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/calculatorai-calculate/id6758134467/reviews)** |
| Number of ratings | **584** | 3 |
| Positive reviews | 81.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Monthly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 13 MB | 48 MB |
| Requires iOS | 17.0 | **14.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Stéphan Barbé](https://appshunter.io/developer/313949257) | [欣博 周](https://appshunter.io/developer/1855735592) |

## 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 (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | per year |

**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/calculatorai-calculate/id6758134467)

This portable computing assistant offers both basic and scientific calculations with a clean interface. It features a history log, currency and unit conversion, and a unique photo-based problem solver. Enjoy an ad-free experience for all your calculation needs.

**Highlights:** Basic and scientific calculations, Calculation history log, Currency and unit conversion, Photo math problem solver, Ad-free experience

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Member | $6.00 | per 7 days |
| Monthly Membership | $12.00 | one-time |
| annual membership | $28.00 | one-time |


## 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 5.0 from 3 ratings.

### Do Calculus doodlus or Calculator have ads?

Calculus doodlus shows ads; Calculator does not.

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

Calculus doodlus ships an update every 6 weeks, and Calculator monthly. Most recently, Calculus doodlus was updated on November 1, 2026 and Calculator on October 31, 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.*