# Calculator Max vs Done Plus Pro

The clearest difference is price: Calculator Max at Free against Done Plus Pro's $0.99. Calculator Max also leads on ads (none vs shown). Done Plus Pro's advantage is in-app purchases (none vs 2) and update cadence (every 3 days vs every 2 months). On device support and iOS requirement there is nothing between them.

Calculator Max is free to download; Done Plus Pro costs $0.99 up front. Calculator Max sells 2 in-app purchases, starting at $4.99 per year. Done Plus Pro asks for nothing beyond the download.

Calculator Max ships an update every 2 months, Done Plus Pro every 3 days. The most recent releases landed on October 1, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Calculator Max | Done Plus Pro |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.3 (1.8K ratings)](https://appshunter.io/ios/app/calculator-max/id364905554/reviews)** | — |
| Number of ratings | **1.8K** | — |
| Positive reviews | 55.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 126 MB | 75 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod, Mac | iPhone, iPad, iPod, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Pavel Kozarek](https://appshunter.io/developer/303215376) | [Done Developer](https://appshunter.io/developer/1628838336) |

## What reviewers say

### Calculator Max

[App page](https://appshunter.io/ios/app/calculator-max/id364905554)

This app offers a comprehensive suite of calculation tools, from basic arithmetic to advanced scientific functions. It features a history tape for easy access and reuse of entries, and a unique scribble pad for handwritten notes and equation solving on iPads. Enjoy a clean interface, multitasking support, and customizable themes.

**Highlights:** Basic and scientific calculators, History tape with export options, Handwritten notes and equation solving, Multitasking support on iPad, Customizable themes and app icons, Home Screen and Lock Screen widgets

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calculator Max Pro | $4.99 | per year |
| Calculator Max Pro | $3.99 | one-time |

**What reviewers like**

- 🚀 Easy to use
- 📝 Useful note-taking feature
- 💾 Tape/history feature
- 👍 Clean and intuitive interface
- 🎨 Customizable appearance

**What reviewers complain about**

- 🐛 Compatibility issues with newer iOS versions
- 📤 Lack of export/sharing options for tape/history
- 🔍 Difficulty finding settings
- 🔀 Sensitive orientation switching

**Reported bugs**

- Crashes after iOS 26 update
- Tape not visible/functional on iPhone
- Calculator buttons/layout issues in split-screen mode

**Requested features**

- Left-handed mode
- Backspace/edit functionality
- Scientific calculator mode with tape
- Tape annotation/labeling
- Cloud/Dropbox sync for tape


### Done Plus Pro

[App page](https://appshunter.io/ios/app/done-plus-pro/id6449226856)

**In-app purchases:** none


## Frequently asked questions

### Is Calculator Max free?

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

### Is Done Plus Pro free?

Done Plus Pro costs $0.99, with no in-app purchases.

### Do Calculator Max or Done Plus Pro have ads?

Done Plus Pro shows ads; Calculator Max does not.

### Which is updated more often, Calculator Max or Done Plus Pro?

Calculator Max ships an update every 2 months, and Done Plus Pro every 3 days. Most recently, Calculator Max was updated on October 1, 2026 and Done Plus Pro on September 9, 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.*