# Calculator Max vs KeyView.ai

The clearest difference is in-app purchases: KeyView.ai at none against Calculator Max's 2. KeyView.ai also leads on iOS requirement (12.4 vs 15.0). Calculator Max's advantage is device support (4 vs 2). On price, update cadence and ads there is nothing between them.

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

Calculator Max ships an update every 2 months, KeyView.ai monthly. The most recent releases landed on September 25, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Calculator Max | KeyView.ai |
| --- | --- | --- |
| Price | Free | Free |
| 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 | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 126 MB | 52 MB |
| Requires iOS | 15.0 | **12.4** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Pavel Kozarek](https://appshunter.io/developer/303215376) | [abdul wahab rind](https://appshunter.io/developer/1659275824) |

## 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


### KeyView.ai

[App page](https://appshunter.io/ios/app/keyviewai/id1659275822)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Calculator Max free?

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

### Is KeyView.ai free?

KeyView.ai is free to download, with no in-app purchases.

### Do Calculator Max or KeyView.ai have ads?

Neither Calculator Max nor KeyView.ai shows ads.

### Which is updated more often, Calculator Max or KeyView.ai?

Calculator Max ships an update every 2 months, and KeyView.ai monthly. Most recently, Calculator Max was updated on September 25, 2026 and KeyView.ai on September 11, 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.*