Comparison

FitGrid vs HRM Battery

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

Head to head
About

FitGrid

Features
Read full description

Your workouts deserve more than a number. FitGrid transforms your Apple Health data into a stunning activity grid, inspired by GitHub’s contribution graph, so you can see your fitness consistency at a glance. Every workout you log from your Apple Watch, gym session, or outdoor run fills a tile on your personal grid. The more active you are, the deeper the color. Watch weeks, months, and an entire year of movement come alive in one beautiful view. WHY FITGRID? β€’ Activity Grid View: See your workout streaks and rest days mapped out in a clean, color-coded grid. Spot patterns. Build momentum. β€’ Weekly, Monthly & Yearly Insights: Toggle between timeframes to track short-term wins and long-term progress. β€’ Home Screen Widgets: Glance at your activity streak without opening the app. Choose rolling or calendar-based views. β€’ Custom Colors: Personalize your grid colors globally or per workout type. Make it yours. β€’ Custom Activities: Create mixed workout categories that combine multiple workout types into one. β€’ Apple Health Sync: Automatic. No manual logging. Your data stays on your device. β€’ Privacy First: Zero data collection. No accounts. No tracking. PERFECT FOR β€’ Gym regulars who want to visualize consistency β€’ Runners and cyclists tracking weekly mileage patterns β€’ Anyone building a workout habit and wanting accountability β€’ Developers and tech enthusiasts who love the GitHub contribution graph aesthetic FitGrid is free, lightweight, and designed to do one thing exceptionally well: show you how active you really are. Build your streak. Watch your grid glow. Download FitGrid today.

About

HRM Battery

Features
Read full description

Never head into a workout with a dead chest strap again. HRM Battery is a focused Apple Watch app that shows the battery level of your Bluetooth heart rate strap right on your wrist. BATTERY AT A GLANCE β€’ Animated ring with battery percentage β€’ Color-coded levels: green (good), orange (low), red (charge soon) β€’ Haptic confirmation when the battery level is read LIVE HEART RATE β€’ Current BPM next to battery status β€’ Animated heartbeat indicator β€’ Everything in one compact view WORKS WITH YOUR STRAP β€’ Polar H10, H9, OH1 β€’ Wahoo TICKR, TICKR FIT, TICKR X β€’ Garmin HRM-Pro, HRM-Pro Plus, HRM-Dual β€’ Any Bluetooth LE heart rate monitor that exposes battery data QUICK CONNECT β€’ Finds nearby HR straps automatically β€’ One-tap connection β€’ Remembers your last device for quick reconnect PRIVACY FIRST β€’ No account required β€’ No data collection, zero analytics β€’ No ads, no tracking β€’ Everything stays on your Apple Watch Built for runners, cyclists, and anyone who relies on a chest strap and wants a quick battery check before training.

Screenshots

FitGrid3 screens

Verdict

The call

The clearest difference is price: FitGrid at Free against HRM Battery's $1.99. HRM Battery's advantage is in-app purchases (none vs 3) and device support (3 vs 1). On update cadence and ads 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

FitGrid is free to download; HRM Battery costs $1.99 up front. FitGrid sells 3 in-app purchases, starting at $2.99 per 7 days. HRM Battery asks for nothing beyond the download.

UpkeepUpdate frequency

FitGrid ships an update every 2 weeks, HRM Battery every 10 days. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

Scorecard4 real differences Β· 2 level
FitGrid versus HRM Battery: the parameters behind the verdict, then further details
ParameterFitGridHRM Battery
PriceFree β€” better$1.99
Update frequencyEvery 2 weeksEvery 10 days β€” better
AdsNoNo
In-app purchasesYesNo β€” better
DevicesiPhoneiPhone, iPad, Apple Watch β€” better
Requires iOS18.016.0 β€” better
Further details β€” not scored
Size30 MB3 MB
Age rating4+4+
DeveloperVICTORIA PETROVA PETROVADAN URBANEK

In-app purchases

3 purchases

FitGrid

Subscriptions3
  • Weekly Subscription1 Month trial$2.997 Days
  • Monthly Subscription1 Month trial$9.991 Month
  • Annual Subscription1 Month trial$39.991 Year
None

HRM Battery

No in-app purchases

Questions

Is FitGrid free?
FitGrid is free to download, with in-app purchases available.
Is HRM Battery free?
HRM Battery costs $1.99, with no in-app purchases.
Do FitGrid or HRM Battery have ads?
Neither FitGrid nor HRM Battery shows ads.
Which is updated more often, FitGrid or HRM Battery?
FitGrid ships an update every 2 weeks, and HRM Battery every 10 days. Most recently, FitGrid was updated on October 26, 2026 and HRM Battery on October 25, 2026.

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