# Calculator! vs CALC Smart Calculator ±

The clearest difference is price: CALC Smart Calculator ± at Free against Calculator!'s $0.99. CALC Smart Calculator ± also leads on update cadence (fortnightly vs every 3 months). Calculator!'s advantage is iOS requirement (9.0 vs 17.0). On rating, review sentiment, ratings volume and ads there is nothing between them.

CALC Smart Calculator ± is free to download; Calculator! costs $0.99 up front. Calculator! sells 1 one-off in-app purchase and CALC Smart Calculator ± sells 4 in-app purchases, starting at $0.99 per 3 months. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for Calculator! against 4.8 for CALC Smart Calculator ±. Both are backed by a comparable volume of ratings — 4.3K and 2.4K respectively. Written reviews are what separate them: 86% of Calculator!'s written reviews are positive against 87% of CALC Smart Calculator ±'s.

Calculator! ships an update every 3 months, CALC Smart Calculator ± fortnightly. The most recent releases landed on November 12, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Calculator! | CALC Smart Calculator ± |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.8 (4.3K ratings)](https://appshunter.io/ios/app/calculator/id432627778/reviews)** | [4.8 (2.4K ratings)](https://appshunter.io/ios/app/calc-smart-calculator/id576675190/reviews) |
| Number of ratings | **4.3K** | 2.4K |
| Positive reviews | 86.0% of reviews | **87.2% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 56 MB | 16 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [7th Gear](https://appshunter.io/developer/321178305) | [QApps LLC](https://appshunter.io/developer/395652397) |

## What reviewers say

### Calculator!

[App page](https://appshunter.io/ios/app/calculator/id432627778)

This app offers a versatile calculator experience with both standard and scientific modes. Customize its appearance, use it in any orientation, and access additional tools like a notes tab and calculation history. It's designed for students and professionals needing accurate calculations.

**Highlights:** Standard and scientific calculator modes, Customizable look (iPad only), Portrait and landscape orientation, Notes and drawing tab, Calculation history, AirPrint and email support

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calculator | $0.99 | one-time |

**What reviewers like**

- 💰 Reasonably priced
- 📝 Useful note-taking features
- 📊 Keeps a calculation history
- 🎨 Customizable appearance
- 🔍 Helpful log and tracking features

**What reviewers complain about**

- 🤔 Confusing input box behavior
- 🔍 Lack of graphing features
- 🔍 Missing some scientific calculator buttons
- 🔍 Inconsistent widget behavior
- 🔍 Issues with split-screen and resizing

**Reported bugs**

- Widget doesn't work as expected
- Calculation history not available in portrait mode
- Resizing issues on iPad Pro
- Slow startup times on older devices

**Requested features**

- Add unit conversion tools
- Improve calculation expression logic
- Allow notes to be viewed in portrait mode
- Implement a scratch paper area on the right side
- Add ability to sync data across devices


### CALC Smart Calculator ±

[App page](https://appshunter.io/ios/app/calc-smart-calculator/id576675190)

This app offers a versatile calculator experience with basic, scientific, and advanced modes. It features real-time results, unit conversions, custom functions, and a shareable history. Optimized for various Apple devices, it's designed for ease of use by students, professionals, and scientists.

**Highlights:** Real-time results, Unit and currency conversions, Custom functions and constants, Shareable calculation history, Landscape mode with tape-roll, Gratuity calculator

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Quarterly Supporter | $0.99 | per 3 months |
| Quarterly Supporter | $1.99 | per 3 months |
| Annual Contributor | $2.99 | per year |
| Annual Contributor | $5.99 | per year |

**What reviewers like**

- 💻 Excellent calculator functionality
- 🎨 Beautiful and clean interface
- 🔢 Displays full calculation history
- 🔍 Useful conversion tools
- 🤖 Seamless Apple Watch integration

**What reviewers complain about**

- 💰 Subscription model introduced
- 🔒 Restricted features behind paywall
- 📊 Calculation bugs and inaccuracies
- 🔄 Unnecessary UI changes frustrate users

**Reported bugs**

- Calculation errors in certain scenarios
- Forced tutorial popup on every launch
- Unreliable widget functionality

**Requested features**

- Ability to easily clear calculation history
- Option to customize button layout
- Support for entering hexadecimal numbers
- Integration with other apps and services


## Frequently asked questions

### Is Calculator! free?

Calculator! costs $0.99, and also offers in-app purchases.

### Is CALC Smart Calculator ± free?

CALC Smart Calculator ± is free to download, with in-app purchases available.

### Which has better reviews, Calculator! or CALC Smart Calculator ±?

Calculator! is rated higher. Calculator! averages 4.8 out of 5 from 4.3K ratings, while CALC Smart Calculator ± averages 4.8 from 2.4K ratings.

### Do Calculator! or CALC Smart Calculator ± have ads?

Neither Calculator! nor CALC Smart Calculator ± shows ads.

### Which is updated more often, Calculator! or CALC Smart Calculator ±?

Calculator! ships an update every 3 months, and CALC Smart Calculator ± fortnightly. Most recently, Calculator! was updated on November 12, 2026 and CALC Smart Calculator ± on November 6, 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.*