# LinkControl vs SpringRithm

The clearest difference is rating: SpringRithm at 4.4 against LinkControl's 3.5. SpringRithm also leads on update cadence (every 2 months vs every 18 months) and ratings volume (10 vs 2). LinkControl's advantage is in-app purchases (none vs 8). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SpringRithm sells 8 in-app purchases, starting at $0.49 per year. LinkControl asks for nothing beyond the download.

SpringRithm holds the better App Store score, 4.4 against 3.5. That said, the two scores are not equally well evidenced: SpringRithm has 10 ratings behind it against 2, so its average is the more settled of the two.

LinkControl ships an update every 18 months, SpringRithm every 2 months. The most recent releases landed on June 1, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | LinkControl | SpringRithm |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (2 ratings)](https://appshunter.io/ios/app/linkcontrol/id781651785/reviews) | **[4.4 (10 ratings)](https://appshunter.io/ios/app/springrithm/id1494993185/reviews)** |
| Number of ratings | 2 | **10** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 211 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [River Rock Logic](https://appshunter.io/developer/340225113) | [Benny Boudreaux](https://appshunter.io/developer/1485335686) |

## What reviewers say

### LinkControl

[App page](https://appshunter.io/ios/app/linkcontrol/id781651785)

This utility app acts as an interface for controlling physical devices like lights and motors. It downloads button definitions from a server and sends button press identifiers back to the server, which then determines the action.

**Highlights:** Control lights, dimmers, and motors, Button definition downloads, Button press identification, Server-based device control, Customizable button layouts

**Features:** macOS Compatibility

**In-app purchases:** none


### SpringRithm

[App page](https://appshunter.io/ios/app/springrithm/id1494993185)

This app helps users set up coilover suspensions for desired loads and ride heights. It calculates dynamic loads and preload adjustments, even without specialized testing equipment. It also checks for coil binding issues with its spring database.

**Highlights:** Set desired loads and ride heights, Calculate dynamic spring loads, Determine preload adjustments, Check for coil binding, Access spring database, Save time on setup changes

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Discount Yearly | $0.49 | per year |
| Basic Use of SpringRithm | $4.99 | per month |
| Basic Use with Free Trial | $19.99 | per month |
| Basic | $34.99 | per month |
| Semi-Pro | $39.99 | per month |
| Yearly Subscription | $99.99 | per year |
| Basic | $149.99 | per year |
| Semi-Pro | $249.99 | per year |


## Frequently asked questions

### Is LinkControl free?

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

### Is SpringRithm free?

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

### Which has better reviews, LinkControl or SpringRithm?

SpringRithm is rated higher. LinkControl averages 3.5 out of 5 from 2 ratings, while SpringRithm averages 4.4 from 10 ratings.

### Do LinkControl or SpringRithm have ads?

Neither LinkControl nor SpringRithm shows ads.

### Which is updated more often, LinkControl or SpringRithm?

LinkControl ships an update every 18 months, and SpringRithm every 2 months. Most recently, LinkControl was updated on June 1, 2026 and SpringRithm on September 8, 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.*