Comparison

Scale Relay vs OpenScale

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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. Note: Withings accounts created on or after 13 October 2026 need Withings+ before the Withings app shares data with Apple Health. Body fat and BMI come along when your scale's app provides them. With the Sync to Garmin action in Shortcuts, an automation can send new weigh-ins without opening the app. 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. It can also save each weigh-in to Apple Health. The S400 needs a one-time authorization with your Xiaomi account. WHAT YOU GET • A preview of every weigh-in before it is sent; nothing leaves without your tap or your Shortcut • Body composition in Garmin Connect, not just the weight • Bluetooth weigh-ins saved to Apple Health too, if you turn it on • A Sync to Garmin action for Shortcuts and automations • Weigh-ins from the last 7 days are included; Garmin Sync unlocks older history • One Garmin sign-in, two-factor authentication supported • 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 and, if you choose, to Apple Health. No Scale Relay account, no tracking, no ads. REQUIREMENTS • iOS 17 or later • A Garmin Connect account • Apple Health route: any scale app that writes weight to the Health app • 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.

About

OpenScale

Features
Read full description

OpenScale is a simple, private weight tracker, where you’re 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, under your control. Your weight. Your control.

Screenshots

Scale Relay4 screens
OpenScale3 screens

Verdict

The call

The clearest difference is price: Scale Relay at Free against OpenScale's $0.99. Scale Relay also leads on iOS requirement (17.0 vs 26.0). OpenScale's advantage is in-app purchases (none vs 1) and update cadence (every 4 days vs every 10 days). On ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

Scale Relay ships an update every 10 days, OpenScale every 4 days. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.

Scorecard5 real differences · 4 level
Scale Relay versus OpenScale: the parameters behind the verdict, then further details
ParameterScale RelayOpenScale
PriceFree — better$0.99
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 10 daysEvery 4 days — better
AdsNoNo
In-app purchasesYesNo — better
Best chart rank—#106 — better
DevicesiPhoneiPhone, iPad — better
Requires iOS17.0 — better26.0
Further details — not scored
Size2 MB12 MB
Age rating4+4+
DeveloperMarcin NaglikCAN ETHEM BELLIDO

In-app purchases

1 purchases

Scale Relay

One-time1
  • Garmin Sync$14.99
None

OpenScale

No in-app purchases

Questions

Is Scale Relay free?
Scale Relay is free to download, with in-app purchases available.
Is OpenScale free?
OpenScale costs $0.99, with no in-app purchases.
Do Scale Relay or OpenScale have ads?
Neither Scale Relay nor OpenScale shows ads.
Which is updated more often, Scale Relay or OpenScale?
Scale Relay ships an update every 10 days, and OpenScale every 4 days. Most recently, Scale Relay was updated on November 5, 2026 and OpenScale on November 6, 2026.

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