# Calculator· vs Calculator Pro 100%

The clearest difference is review sentiment: Calculator· at 84% against Calculator Pro 100%'s 40%. Calculator· also leads on device support (4 vs 1). Calculator Pro 100%'s advantage is in-app purchases (none vs 3) and update cadence (every 3 weeks vs every 3 months). On price and ads there is nothing between them.

Both are free to download. Calculator· sells 3 in-app purchases, starting at $0.99 per month. Calculator Pro 100% asks for nothing beyond the download.

Calculator· ships an update every 3 months, Calculator Pro 100% every 3 weeks. The most recent releases landed on October 29, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Calculator· | Calculator Pro 100% |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (34K ratings)](https://appshunter.io/ios/app/calculator/id554836784/reviews)** | — |
| Number of ratings | **34K** | — |
| Positive reviews | **84.3% of reviews** | 40.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 47 MB | 18 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tim O's Studios, LLC](https://appshunter.io/developer/412839685) | [Fabio Giuliani](https://appshunter.io/developer/1333671865) |

## What reviewers say

### 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


### Calculator Pro 100%

[App page](https://appshunter.io/ios/app/calculator-pro-100/id1609224179)

A practical and functional scientific calculator designed for iPad. It allows users to save and reuse previous calculations, displays partial results, and shows the current expression for clarity. This app is completely free to use.

**Highlights:** Scientific calculator functionality, Save and reuse calculations, Supports various operations, Shows partial results, Displays current expression

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Calculator· free?

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

### Is Calculator Pro 100% free?

Calculator Pro 100% is free to download, with no in-app purchases.

### Do Calculator· or Calculator Pro 100% have ads?

Both Calculator· and Calculator Pro 100% show ads.

### Which is updated more often, Calculator· or Calculator Pro 100%?

Calculator· ships an update every 3 months, and Calculator Pro 100% every 3 weeks. Most recently, Calculator· was updated on October 29, 2026 and Calculator Pro 100% on October 15, 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.*