# OrbitCalc vs RISC

The clearest difference is in-app purchases: RISC at none against OrbitCalc's 1. OrbitCalc's advantage is iOS requirement (18.0 vs 26.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. OrbitCalc sells 1 one-off in-app purchase. RISC asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for OrbitCalc against 5.0 for RISC. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

## The numbers

| Metric | OrbitCalc | RISC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/orbitcalc/id6743425109/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/risc-v-assembly-simulator/id6746425094/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Monetization | Free | Free |
| Size | 11 MB | 3 MB |
| Requires iOS | **18.0** | 26.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Bian Dhoan Kwik](https://appshunter.io/developer/1793925532) | [Matthew Jacobs](https://appshunter.io/developer/1750387744) |

## What reviewers say

### OrbitCalc

[App page](https://appshunter.io/ios/app/orbitcalc/id6743425109)

This tool helps space enthusiasts, engineers, and researchers precisely calculate satellite orbits. It allows users to determine orbital parameters from vector data or vice versa with accurate results. Save and manage your calculations, and customize measurement units for a personalized experience.

**Highlights:** Orbital calculations from parameters or vectors, Save and revisit previous calculations, History page for managing saved work, Customizable measurement units

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OrbitCalc Pro | $0.99 | one-time |


### RISC

[App page](https://appshunter.io/ios/app/risc-v-assembly-simulator/id6746425094)

Simulate a complete 32-bit mobile system, including CPU units and memory. Write and debug assembly code directly on the simulated hardware to understand its inner workings.

**Highlights:** 32-bit system simulation, CPU unit simulation, Memory subsystem simulation, Native assembly coding, Built-in debugger, Hardware analysis

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

**In-app purchases:** none


## Frequently asked questions

### Is OrbitCalc free?

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

### Is RISC free?

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

### Which has better reviews, OrbitCalc or RISC?

OrbitCalc and RISC are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do OrbitCalc or RISC have ads?

Neither OrbitCalc nor RISC shows ads.

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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.*