# Rhombus Key vs Finix Checkout

The clearest difference is review sentiment: Rhombus Key at 74% against Finix Checkout's 0%. Rhombus Key also leads on ratings volume (72 vs 6) and iOS requirement (16.0 vs 18.1). Finix Checkout's advantage is rating (4.7 vs 4.3). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Finix Checkout holds the better App Store score, 4.7 against 4.3. That said, the two scores are not equally well evidenced: Rhombus Key has 72 ratings behind it against 6, so its average is the more settled of the two. Written reviews complicate that: 74% of Rhombus Key's written reviews are positive against 0% of Finix Checkout's, so the app with the better star average is not the one people write more warmly about.

Rhombus Key ships an update every 4 weeks, Finix Checkout fortnightly. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Rhombus Key | Finix Checkout |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (72 ratings)](https://appshunter.io/ios/app/rhombus-key/id1669560104/reviews) | **[4.7 (6 ratings)](https://appshunter.io/ios/app/finix-checkout/id6746730500/reviews)** |
| Number of ratings | **72** | 6 |
| Positive reviews | **74.1% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Size | 20 MB | 41 MB |
| Requires iOS | **16.0** | 18.1 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Rhombus Systems, Inc.](https://appshunter.io/developer/1237841962) | [Finix Payments](https://appshunter.io/developer/1600304902) |

## What reviewers say

### Rhombus Key

[App page](https://appshunter.io/ios/app/rhombus-key/id1669560104)

Securely unlock doors using your smartphone, eliminating the need for physical keys or keycards. This app offers fast building access, seamless badging, and the ability to save favorite doors for quick navigation. It supports multi-location access with a single login.

**Highlights:** Secure mobile credentials for building access, Fast and seamless badging, Save favorite doors for quick access, Multi-location access with one login, Compatible with Rhombus Access Control

**In-app purchases:** none


### Finix Checkout

[App page](https://appshunter.io/ios/app/finix-checkout/id6746730500)

This app helps businesses manage payments and customers efficiently. It allows for accepting card payments, sending payment links, and tracking transactions in real-time. Users can also search and filter payments and send receipts to clients.

**Highlights:** Accept card payments, Send payment links, Real-time transaction tracking, Search and filter payments, Send customer receipts

**In-app purchases:** none


## Frequently asked questions

### Is Rhombus Key free?

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

### Is Finix Checkout free?

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

### Which has better reviews, Rhombus Key or Finix Checkout?

Finix Checkout is rated higher. Rhombus Key averages 4.3 out of 5 from 72 ratings, while Finix Checkout averages 4.7 from 6 ratings.

### Do Rhombus Key or Finix Checkout have ads?

Neither Rhombus Key nor Finix Checkout shows ads.

### Which is updated more often, Rhombus Key or Finix Checkout?

Rhombus Key ships an update every 4 weeks, and Finix Checkout fortnightly. Most recently, Rhombus Key was updated on November 3, 2026 and Finix Checkout on November 5, 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.*