# Rapid Relay Calculator vs Hongyi CFOP Cube Solver

The clearest difference is in-app purchases: Rapid Relay Calculator at none against Hongyi CFOP Cube Solver's 4. Rapid Relay Calculator also leads on device support and ratings volume (3 vs 1). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. Hongyi CFOP Cube Solver sells 4 in-app purchases, starting at $0.99 per 7 days. Rapid Relay Calculator asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Rapid Relay Calculator against 5.0 for Hongyi CFOP Cube Solver. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Rapid Relay Calculator ships an update every 4 weeks, Hongyi CFOP Cube Solver every 3 weeks. Both last shipped on October 7, 2026.

## The numbers

| Metric | Rapid Relay Calculator | Hongyi CFOP Cube Solver |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/rapid-relay-calculator/id6738112792/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/hongyi-cfop-cube-solver/id6759669130/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | — |
| Update frequency | Every 4 weeks | **Every 3 weeks** |
| Monetization | **Free** | Freemium |
| Size | 5 MB | 27 MB |
| Requires iOS | 17.6 | **16.0** |
| Devices | **iPhone, iPad, Apple Watch** | — |
| Age rating | 4+ | 4+ |
| Developer | [Tao Dong](https://appshunter.io/developer/1779419667) | [佳辰 汪](https://appshunter.io/developer/1872459075) |

## What reviewers say

### Rapid Relay Calculator

[App page](https://appshunter.io/ios/app/rapid-relay-calculator/id6738112792)

This app helps VEX IQ Robotics Competition participants quickly and accurately calculate scores for the Rapid Relay game. It supports both Teamwork and Skills matches, offers interactive scoring, and allows for saving match data with sorting options. Features like dark mode and keyboard input enhance usability for teams, judges, and coaches.

**Highlights:** Teamwork and Skills match support, Interactive scoring, Score saving with sorting, Practice match schedule generator, Dark mode support, Keyboard input option

**In-app purchases:** none


### Hongyi CFOP Cube Solver

[App page](https://appshunter.io/ios/app/hongyi-cfop-cube-solver/id6759669130)

This app helps users solve and practice 3x3 cubes with features like AI-powered coaching, timer functions, and 3D playback. It supports manual input, camera recognition, and Bluetooth smart cubes for an enhanced speedcubing experience.

**Highlights:** 3x3 cube solving, AI training coach, Camera recognition, Bluetooth smart cube support, WCA scrambles and timing, CFOP method practice, 3D playback with solution steps

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $0.99 | per 7 days |
| Premium Monthly | $2.99 | per month |
| Premium Yearly | $19.99 | per year |
| Premium Lifetime | $124.99 | one-time |


## Frequently asked questions

### Is Rapid Relay Calculator free?

Rapid Relay Calculator is free to download, with no in-app purchases.

### Is Hongyi CFOP Cube Solver free?

Hongyi CFOP Cube Solver is free to download, with in-app purchases available.

### Which has better reviews, Rapid Relay Calculator or Hongyi CFOP Cube Solver?

Rapid Relay Calculator and Hongyi CFOP Cube Solver are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.

### Which is updated more often, Rapid Relay Calculator or Hongyi CFOP Cube Solver?

Rapid Relay Calculator ships an update every 4 weeks, and Hongyi CFOP Cube Solver every 3 weeks. Most recently, Rapid Relay Calculator was updated on October 7, 2026 and Hongyi CFOP Cube Solver on October 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.*