Comparison

OpenScale vs ScaleSynch

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

Head to head
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. Your weight. Your data. Your control.

About

ScaleSynch

Features
Read full description

ScaleSynch makes every weigh-in effortless. It works with Chipsea/OKOK-compatible Bluetooth scales, so you just step on the scale with bare feet and the app captures your weight instantly. No pairing screens, no codes, no extra taps. Start fast with no account required. Open the app once, grant Apple Health permissions, then simply weigh yourself. ScaleSynch records each measurement in seconds and stores your data without any login or signup. Turn daily weigh-ins into meaningful progress. See clear trend lines, weekly averages, and changes over time to separate real progress from day-to-day fluctuations. Integrated with Apple HealthKit for a complete view. Your weight measurements are written to the Health app, where you can see them alongside activity, nutrition, sleep, and more. One place, one timeline. Why ScaleSynch - Truly automatic capture: step on, get weighed, and you are done. - No pairing required: skip Bluetooth setup and failed connections. - No account or password: less friction, more privacy. - HealthKit integration: all your metrics in one secure ecosystem. - Clear trends over time: from daily checks to long-term progress. Make weighing in a one-step habit and get the insights that matter.

Screenshots

OpenScale4 screens
ScaleSynch4 screens

Verdict

The call

The clearest difference is price: ScaleSynch at Free against OpenScale's $0.99. OpenScale's advantage is in-app purchases (none vs 1). On update cadence, ads, device support and iOS requirement 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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

ScaleSynch is free to download; OpenScale costs $0.99 up front. ScaleSynch sells 1 one-off in-app purchase. OpenScale asks for nothing beyond the download.

UpkeepUpdate frequency

OpenScale ships an update fortnightly, ScaleSynch monthly. The most recent releases landed on September 21, 2026 and September 12, 2026 respectively.

Scorecard2 real differences Β· 4 level
OpenScale versus ScaleSynch: the parameters behind the verdict, then further details
ParameterOpenScaleScaleSynch
Price$0.99Free β€” better
Update frequencyFortnightly β€” betterMonthly
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPad β€” betteriPhone
Requires iOS26.026.0
Further details β€” not scored
Size5 MB3 MB
Age rating4+4+
DeveloperCAN ETHEM BELLIDORob In der Maur

In-app purchases

None

OpenScale

No in-app purchases

1 purchases

ScaleSynch

One-time1
  • Unlimited real BT scanes$2.99

Questions

Is OpenScale free?
OpenScale costs $0.99, with no in-app purchases.
Is ScaleSynch free?
ScaleSynch is free to download, with in-app purchases available.
Do OpenScale or ScaleSynch have ads?
Neither OpenScale nor ScaleSynch shows ads.
Which is updated more often, OpenScale or ScaleSynch?
OpenScale ships an update fortnightly, and ScaleSynch monthly. Most recently, OpenScale was updated on September 21, 2026 and ScaleSynch on September 12, 2026.

Other comparisons