# Calculator +ㅤ vs HiPER Scientific Calculator

The clearest difference is monetization model: HiPER Scientific Calculator at free with in-app purchases against Calculator +ㅤ's subscription. HiPER Scientific Calculator also leads on review sentiment (83% vs 47%). Calculator +ㅤ's advantage is ratings volume (4.6K vs 279). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Calculator +ㅤ sells 6 in-app purchases, starting at $2.99 per 7 days and HiPER Scientific Calculator sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.6 for Calculator +ㅤ against 4.7 for HiPER Scientific Calculator. That said, the two scores are not equally well evidenced: Calculator +ㅤ has 4.6K ratings behind it against 279, so its average is the more settled of the two. Written reviews are what separate them: 47% of Calculator +ㅤ's written reviews are positive against 83% of HiPER Scientific Calculator's.

Calculator +ㅤ ships an update fortnightly, HiPER Scientific Calculator every 3 weeks. Both last shipped on November 7, 2026.

## The numbers

| Metric | Calculator +ㅤ | HiPER Scientific Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (4.6K ratings)](https://appshunter.io/ios/app/calculator-plus/id1597933199/reviews) | **[4.7 (279 ratings)](https://appshunter.io/ios/app/hiper-scientific-calculator/id1645513530/reviews)** |
| Number of ratings | **4.6K** | 279 |
| Positive reviews | 46.7% of reviews | **82.8% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 55 MB | 35 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rocket Apps GmbH](https://appshunter.io/developer/1566586717) | [Jindrich Houska](https://appshunter.io/developer/1645513532) |

## What reviewers say

### Calculator +ㅤ

[App page](https://appshunter.io/ios/app/calculator-plus/id1597933199)

This app simplifies math with basic, scientific, and fraction calculations. It also features a unique snap-and-scribble function to solve problems from photos. Customize your experience with themes and access a calculation history.

**Highlights:** Snap and Scribble Calculator, Basic Calculator, Scientific Calculator, Fraction Calculator, Currency Converter, Calculation History, Customizable Themes

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rocket Apps PRO Weekly | $2.99 | per 7 days |
| Rocket Apps PRO Monthly | $4.99 | per month |
| Rocket Apps PRO Yearly | $9.99 | per year |
| Rocket Apps PRO Offer | $19.99 | per year |
| Rocket Apps PRO Yearly | $19.99 | per year |
| Rocket Apps PRO Yearly | $29.99 | per year |

**What reviewers like**

- 👍 Easy to use
- 🚀 Accurate calculations
- 🎨 Excellent visuals
- 💡 Helpful for academic work

**What reviewers complain about**

- 💰 Subscription model too expensive
- 🔍 Decimal entry quirks
- 📺 Too many ads
- 🔒 Locked features behind paywall

**Reported bugs**

- Inaccurate square root calculations
- Compatibility issues on iPad
- Decimal point not recognized

**Requested features**

- Negative number support
- Improved fraction calculator
- Scientific calculator layout
- Option to disable history feature


### HiPER Scientific Calculator

[App page](https://appshunter.io/ios/app/hiper-scientific-calculator/id1645513530)

This app offers advanced scientific calculation capabilities, including symbolic algebra, equation solving, and calculus functions. It supports high precision, natural expression input, and various display formats. Users can also visualize functions and equations with 2D and 3D graphing.

**Highlights:** Symbolic algebra, Integrals and derivatives, High precision calculations, Natural expression input, 2D and 3D graphing, Matrices and vectors, Unit conversions

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro version | $0.99 | per month |
| Pro Forever | $7.99 | one-time |

**What reviewers like**

- 👍 Excellent functionality for technical users
- 💡 Custom functions for non-trivial calculations
- 👍 Great expression screen, easy to navigate
- 👍 Accurate and intuitive UI
- 👍 Remains the best after years of use

**What reviewers complain about**

- 🐛 Keyboard unresponsive at times
- 🐛 Ads in paid version
- 🐛 iOS version lacks RPN mode
- 🐛 iOS version lacks themes
- 🐛 iOS version lacks custom functions

**Reported bugs**

- Keyboard unresponsive in multiple occasions
- App freezes when entering numbers
- Failed upgrade workflow message
- App offers paid upgrade after purchase
- White text unreadable on dark background in iOS settings

**Requested features**

- Allow custom infix operations
- Add widget support
- Add RPN mode to iOS version
- Add themes to iOS version
- Add custom functions to iOS version


## Frequently asked questions

### Is Calculator +ㅤ free?

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

### Is HiPER Scientific Calculator free?

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

### Which has better reviews, Calculator +ㅤ or HiPER Scientific Calculator?

HiPER Scientific Calculator is rated higher. Calculator +ㅤ averages 4.6 out of 5 from 4.6K ratings, while HiPER Scientific Calculator averages 4.7 from 279 ratings.

### Do Calculator +ㅤ or HiPER Scientific Calculator have ads?

Both Calculator +ㅤ and HiPER Scientific Calculator show ads.

### Which is updated more often, Calculator +ㅤ or HiPER Scientific Calculator?

Calculator +ㅤ ships an update fortnightly, and HiPER Scientific Calculator every 3 weeks. Most recently, Calculator +ㅤ was updated on November 7, 2026 and HiPER Scientific Calculator on November 7, 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.*