Comparison

Fitbit Ace vs Bike Scale

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

Head to head
About

Fitbit Ace

Manage your child's Fitbit Ace LTE smartwatch. Securely call, text, track location, and monitor activity. Control contacts and ensure peace of mind.

Highlights
  • Secure calling and texting
  • Real-time location tracking
  • Activity level monitoring
  • Contact management
  • Child's smartwatch management
Read full description

The Fitbit Ace app is your home base for the Fitbit Ace LTE kids smartwatch. Use it to securely call or text message your child, see their location, check in on their activity levels, and manage their contacts. If you’re invited as a contact, you can also use the Fitbit Ace app to securely call or send messages to a child’s Fitbit Ace LTE smartwatch. *Fitbit Ace LTE device requires a paid Ace Pass data plan. Some features only available for kids with a supervised Google Account. Learn more about privacy for Fitbit Ace at g.co/fitbitace/privacy

About

Bike Scale

This app allows users to meticulously track bike components and build weights locally on their device. It calculates total build weight, stores multiple bike configurations, and offers filtering by category for easy component selection. Access your data via a web browser on your local network.

Highlights
  • Local-first data storage
  • Component and build weight tracking
  • Side-by-side build comparison
  • Category-based filtering
  • LAN server for browser access
  • CSV and ZIP import/export
  • Light, Dark, and Auto themes
Features
Read full description

Bike Scale — Component & Build Log Bike Scale is a private, local-first bike tracking app that helps you stay on top of components, calculate weights, store builds for all your bikes, or bikes you are considering purchasing — with no accounts, no cloud, and no data sharing of any kind. Your Data Stays on Your Device Everything Bike Scale stores — lives exclusively on your phone. No data is ever sent to external servers, no account is required, and no third party can access your information. Bike Scale is built for people who want the power of detailed tracking without sacrificing privacy. Bike Build Tracking Log every bike with components and weights. Bike Scale automatically calculates your builds total weight and tracks builds side by side. Duplicate builds so you can make minor changes and compare the weight of those builds. Dashboard stat cards update instantly based on the values you select for each build. Components Records Build out your personalized list of components. Add to the components list, or add components will designing a build. Filtering The Parts tab allows you to filter by categories and sub-categories. This same filtering applies when adding a build. When you want to add a Wheel to a build only the wheel components are shown, and when choosing a Rim, only rims are shown. LAN Server — Browser Access Over Wi-Fi Bike Scale includes a built-in LAN server that lets you access your data from any web browser on the same Wi-Fi network — no internet required. Open the web interface on your laptop or desktop to view records, add and edit entries, run exports, and import data, all while your phone stays in your pocket. Changes made in the browser appear instantly on your phone, and changes made on your phone appear instantly in the browser. Import & Export Export your records as a CSV file or as a ZIP archive that includes all your receipt files. Import previously exported CSV or ZIP files to restore or transfer your data. Full round-trip portability means your data is never locked in. Themes Bike Scale supports Light, Dark, and Auto themes. Auto mode follows your device's system setting, switching seamlessly between light and dark as you change your system preference. All themes are applied instantly with no restart required. Designed for Simplicity and Speed Every interaction is designed to be fast. Adding a Part or Build takes seconds. The interface is clean and focused, with no clutter, no ads, and no upsells. Bike Scale does one thing — helps you track your bike Builds — and does it well. AutoTracker requires no account and no internet connection. All data is stored locally on your device and is fully under your control.

Screenshots

Fitbit Ace4 screens
Bike Scale4 screens

Verdict

The call

The clearest difference is rating: Bike Scale at 5.0 against Fitbit Ace's 4.1. Bike Scale also leads on update cadence (daily vs every 3 weeks) and device support (3 vs 1). Fitbit Ace's advantage is in-app purchases (none vs 1) and ratings volume (224 vs 1). On price and ads 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

Both are free to download. Bike Scale sells 1 one-off in-app purchase. Fitbit Ace asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Bike Scale holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Fitbit Ace has 224 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Fitbit Ace ships an update every 3 weeks, Bike Scale daily. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard7 real differences · 3 level
Fitbit Ace versus Bike Scale: the parameters behind the verdict, then further details
ParameterFitbit AceBike Scale
PriceFreeFree
Rating4.1 (224 ratings)5.0 (1 ratings) — better
Positive reviews50.0% of reviews—
Number of ratings224 — better1
Update frequencyEvery 3 weeksDaily — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree with in-app purchasesFree — better
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.013.4 — better
Further details — not scored
Size196 MB27 MB
Age rating4+4+
DeveloperGoogleChe Geiser

Customer experience

Fitbit Ace

All ratings221 ratings
Positive74.7%
Neutral5.0%
Negative20.4%
Written reviews56 reviews
Positive50.0%
Neutral8.9%
Negative41.1%

Bike Scale

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Fitbit Ace

Reported bugs

15 issues
  • Location, calling, and messaging features not working when disconnected from WiFi
  • Incoming calls on iPhone from Fitbit Ace have no sound, only vibration
  • Message history lost when moving to a new phone
  • App does not connect to the watch
  • App never loads or says no connection
Show 10 more
  • App stops working and requires restoration
  • Customer service never responded
  • Some messages are delayed
  • Some messages disappear after a bit
  • Takes forever to receive text and update location
  • App immediately asks for country and says not allowed
  • App is completely unusable, clicking does nothing
  • App freezes and nothing can be clicked
  • Cannot invite spouse to family account
  • Cannot contact other kids or their friends, only adults

Requested features

15 requests
  • Allow adjusting theme or colors
  • Add basic features like photo sharing
  • Allow communication between friends with watches
  • Enable parents to approve friend connections
  • Allow grandparents abroad to use the app
Show 10 more
  • Add more parental control options
  • More parental settings needed
  • Add voice message feature for parents
  • More child safety features updates
  • More family quests
  • More customization of night time hours
  • Increase size of keyboard buttons
  • Enable parents to call even during school time
  • Modify goals to include other exercises
  • UI tweaks for better user experience

Bike Scale

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Fitbit Ace

No in-app purchases

1 purchases

Bike Scale

One-time1
  • Buy me a coffee$2.99

Questions

Is Fitbit Ace free?
Fitbit Ace is free to download, with no in-app purchases.
Is Bike Scale free?
Bike Scale is free to download, with in-app purchases available.
Which has better reviews, Fitbit Ace or Bike Scale?
Bike Scale is rated higher. Fitbit Ace averages 4.1 out of 5 from 224 ratings, while Bike Scale averages 5.0 from 1 ratings.
Do Fitbit Ace or Bike Scale have ads?
Neither Fitbit Ace nor Bike Scale shows ads.
Which is updated more often, Fitbit Ace or Bike Scale?
Fitbit Ace ships an update every 3 weeks, and Bike Scale daily. Most recently, Fitbit Ace was updated on November 3, 2026 and Bike Scale on October 31, 2026.

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