Scale Relay vs OpenScale
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Scale Relay
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Get your smart scale's weigh-ins into Garmin Connect, straight from your iPhone. Two ways in, one tap out. APPLE HEALTH ROUTE: ANY SCALE If your scale's app saves weight to the Health app, Scale Relay picks it up and sends it to Garmin Connect. Works with Withings, Renpho, Eufy, Etekcity, Zepp Life, Wyze, Picooc and any other app that writes weight to Apple Health. Body fat and BMI come along when your scale's app provides them. BLUETOOTH ROUTE: XIAOMI SCALES, NO OTHER APP NEEDED Step on a Mi Body Composition Scale 2 or a Xiaomi Body Composition Scale S400 and Scale Relay reads the measurement directly: weight, body fat, muscle mass, bone mass, water, BMI and BMR. The S400 needs a one-time authorization with your Xiaomi account. WHAT YOU GET β’ A preview of every weigh-in before it is sent; nothing leaves without your tap β’ Body composition in Garmin Connect, not just the weight β’ Weigh-ins from the last 7 days are included; Garmin Sync unlocks older history β’ One Garmin sign-in, two-factor authentication supported β’ A "Sent to Garmin" list so you know what arrived FREE TO TRY Your first two syncs are free on either route. Unlimited syncing is a single one-time purchase called Garmin Sync. No subscription. PRIVACY FIRST Your measurements stay on your iPhone and go only to your own Garmin account. No Scale Relay account, no tracking, no ads. REQUIREMENTS β’ iOS 17 or later β’ A Garmin Connect account β’ Apple Health route: any scale app that writes weight to the Health app β’ Bluetooth route: Mi Body Composition Scale 2 or Xiaomi Body Composition Scale S400 Scale Relay is an independent app. It is not affiliated with, endorsed by or associated with Garmin, Xiaomi, Withings, Renpho, Eufy, Etekcity, Zepp, Wyze, Picooc or any other scale or fitness-platform maker. Product names are trademarks of their respective owners.
OpenScale
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OpenScale is a simple, private weight tracker, where youβre in full control of your data. Log your weight offline, and export or import everything, whenever you want. No accounts. No internet connection. No hidden syncing. Just you and your data, on your device. Your weight. Your data. Your control.
Screenshots
Verdict
The clearest difference is price: Scale Relay at Free against OpenScale's $0.99. Scale Relay also leads on update cadence (weekly vs fortnightly) and iOS requirement (17.0 vs 26.0). OpenScale's advantage is in-app purchases (none vs 1). On ads and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Scale Relay is free to download; OpenScale costs $0.99 up front. Scale Relay sells 1 one-off in-app purchase. OpenScale asks for nothing beyond the download.
Scale Relay ships an update weekly, OpenScale fortnightly. The most recent releases landed on October 6, 2026 and October 8, 2026 respectively.
| Parameter | Scale Relay | OpenScale |
|---|---|---|
| Price | Free β better | $0.99 |
| Update frequency | Weekly β better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | No β better |
| Devices | iPhone | iPhone, iPad β better |
| Requires iOS | 17.0 β better | 26.0 |
| Further details β not scored | ||
| Size | 1 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Marcin Naglik | CAN ETHEM BELLIDO |
In-app purchases
Scale Relay
- Garmin Export$9.99
OpenScale
No in-app purchases








