# CALC Smart Calculator ± vs Nonuple Calc

The clearest difference is in-app purchases: Nonuple Calc at none against CALC Smart Calculator ±'s 4. Nonuple Calc also leads on iOS requirement (15.8.3 vs 17.0). CALC Smart Calculator ±'s advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. CALC Smart Calculator ± sells 4 in-app purchases, starting at $0.99 per 3 months. Nonuple Calc asks for nothing beyond the download.

CALC Smart Calculator ± ships an update fortnightly, Nonuple Calc every 2 weeks. The most recent releases landed on October 21, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | CALC Smart Calculator ± | Nonuple Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (2.4K ratings)](https://appshunter.io/ios/app/calc-smart-calculator/id576675190/reviews)** | — |
| Number of ratings | **2.4K** | — |
| Positive reviews | 87.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 16 MB | 36 MB |
| Requires iOS | 17.0 | **15.8.3** |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [QApps LLC](https://appshunter.io/developer/395652397) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### 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


### Nonuple Calc

[App page](https://appshunter.io/ios/app/nonuple-calc/id6742040810)

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

**In-app purchases:** none


## Frequently asked questions

### Is CALC Smart Calculator ± free?

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

### Is Nonuple Calc free?

Nonuple Calc is free to download, with no in-app purchases.

### Do CALC Smart Calculator ± or Nonuple Calc have ads?

Nonuple Calc shows ads; CALC Smart Calculator ± does not.

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

CALC Smart Calculator ± ships an update fortnightly, and Nonuple Calc every 2 weeks. Most recently, CALC Smart Calculator ± was updated on October 21, 2026 and Nonuple Calc on October 17, 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.*