# Scale Relay vs RydX

Scale Relay and RydX are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Scale Relay sells 1 one-off in-app purchase and RydX sells 2 in-app purchases, starting at $2.49 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 10 days. Both last shipped on November 9, 2026.

## The numbers

| Metric | Scale Relay | RydX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/scale-relay-smart-scale-sync/id6757105647/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | Every 10 days |
| Monetization | Free with in-app purchases | — |
| Size | 2 MB | 27 MB |
| Requires iOS | **17.0** | 18.2 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Marcin Naglik](https://appshunter.io/developer/1860354816) | [Armando Lozada Navas](https://appshunter.io/developer/1886864600) |

## What reviewers say

### Scale Relay

[App page](https://appshunter.io/ios/app/scale-relay-smart-scale-sync/id6757105647)

Seamlessly transfer your smart scale data to Garmin Connect. Supports scales that write to Apple Health or directly syncs with select Xiaomi models via Bluetooth. Offers a preview before syncing and includes body composition metrics.

**Highlights:** Syncs weight and body composition to Garmin Connect, Supports scales writing to Apple Health, Direct Bluetooth sync for Xiaomi scales, Preview weigh-ins before syncing, Shortcuts integration for automations, One-time purchase for unlimited syncing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Garmin Sync | $14.99 | one-time |


### RydX

[App page](https://appshunter.io/ios/app/rydx-cycling-computer/id6760926544)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RydX Pro Monthly | $2.49 | per month |
| RydX Pro Annual | $24.99 | per year |


## Frequently asked questions

### Is Scale Relay free?

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

### Is RydX free?

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

### Do Scale Relay or RydX have ads?

Neither Scale Relay nor RydX shows ads.

### Which is updated more often, Scale Relay or RydX?

Scale Relay ships an update every 10 days, and RydX every 10 days. Most recently, Scale Relay was updated on November 9, 2026 and RydX on November 9, 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.*