# SpanSet Payload Controller vs HiPER Scientific Calculator

The clearest difference is in-app purchases: SpanSet Payload Controller at none against HiPER Scientific Calculator's 2. SpanSet Payload Controller also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.0). HiPER Scientific Calculator's advantage is update cadence (every 3 weeks vs every 2 months). On price and device support there is nothing between them.

Both are free to download. HiPER Scientific Calculator sells 2 in-app purchases, starting at $0.99 per month. SpanSet Payload Controller asks for nothing beyond the download.

SpanSet Payload Controller ships an update every 2 months, HiPER Scientific Calculator every 3 weeks. The most recent releases landed on October 19, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | SpanSet Payload Controller | HiPER Scientific Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (274 ratings)](https://appshunter.io/ios/app/hiper-scientific-calculator/id1645513530/reviews)** |
| Number of ratings | — | **274** |
| Positive reviews | — | 82.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 7 MB | 35 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Span Set GmbH & Co. KG](https://appshunter.io/developer/569512606) | [Jindrich Houska](https://appshunter.io/developer/1645513532) |

## What reviewers say

### SpanSet Payload Controller

[App page](https://appshunter.io/ios/app/spanset-payload-controller/id946925049)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 SpanSet Payload Controller free?

SpanSet Payload Controller is free to download, with no in-app purchases.

### Is HiPER Scientific Calculator free?

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

### Do SpanSet Payload Controller or HiPER Scientific Calculator have ads?

HiPER Scientific Calculator shows ads; SpanSet Payload Controller does not.

### Which is updated more often, SpanSet Payload Controller or HiPER Scientific Calculator?

SpanSet Payload Controller ships an update every 2 months, and HiPER Scientific Calculator every 3 weeks. Most recently, SpanSet Payload Controller was updated on October 19, 2026 and HiPER Scientific Calculator on October 23, 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.*