# CALC Smart Calculator ± vs GraphCalcPro2Go

The clearest difference is update cadence: CALC Smart Calculator ± at fortnightly against GraphCalcPro2Go's every 3 months. CALC Smart Calculator ± also leads on ratings volume (2.4K vs 42). On price, rating, review sentiment and ads 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 and GraphCalcPro2Go sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

CALC Smart Calculator ± holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: CALC Smart Calculator ± has 2.4K ratings behind it against 42, so its average is the more settled of the two. Written reviews point the same way: 87% of CALC Smart Calculator ±'s written reviews are positive against 80% of GraphCalcPro2Go's.

CALC Smart Calculator ± ships an update fortnightly, GraphCalcPro2Go every 3 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | CALC Smart Calculator ± | GraphCalcPro2Go |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (2.4K ratings)](https://appshunter.io/ios/app/calc-smart-calculator/id576675190/reviews)** | [4.6 (42 ratings)](https://appshunter.io/ios/app/graphcalcpro2go/id1091870099/reviews) |
| Number of ratings | **2.4K** | 42 |
| Positive reviews | **87.3% of reviews** | 80.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 16 MB | 9 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [QApps LLC](https://appshunter.io/developer/395652397) | [Starware Software LLC](https://appshunter.io/developer/988250389) |

## 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


### GraphCalcPro2Go

[App page](https://appshunter.io/ios/app/graphcalcpro2go/id1091870099)

This advanced scientific calculator offers ultra-high precision and a wide range of functions, replicating expensive handheld devices with added iOS capabilities. It supports both standard and RPN modes, includes built-in constants, and syncs across devices via iCloud. Users can also create graphs and share calculations.

**Highlights:** Ultra high precision and range, Standard (in-fix) and RPN modes, Built-in constants and unit conversions, iCloud sync across devices, Create and share graphs, Apple Watch compatibility

**Features:** Family Sharing

**In-app purchases (1)**

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


## Frequently asked questions

### Is CALC Smart Calculator ± free?

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

### Is GraphCalcPro2Go free?

GraphCalcPro2Go is free to download, with in-app purchases available.

### Which has better reviews, CALC Smart Calculator ± or GraphCalcPro2Go?

CALC Smart Calculator ± is rated higher. CALC Smart Calculator ± averages 4.8 out of 5 from 2.4K ratings, while GraphCalcPro2Go averages 4.6 from 42 ratings.

### Do CALC Smart Calculator ± or GraphCalcPro2Go have ads?

Neither CALC Smart Calculator ± nor GraphCalcPro2Go shows ads.

### Which is updated more often, CALC Smart Calculator ± or GraphCalcPro2Go?

CALC Smart Calculator ± ships an update fortnightly, and GraphCalcPro2Go every 3 months. Most recently, CALC Smart Calculator ± was updated on November 1, 2026 and GraphCalcPro2Go on November 2, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*