Comparison

Polar Flow vs ThatLiftTracker

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

Head to head
About

Polar Flow

This app helps you track daily activity, analyze workouts with detailed metrics, and gain insights into sleep patterns and recovery. It allows for device management, route planning, and seamless syncing with other popular fitness platforms.

Highlights
  • Activity Tracking
  • Training Analysis
  • Sleep Insights
  • Training Load & Recovery
  • Device & Profile Management
  • Wireless Syncing
  • Third-Party Service Integration
Features
Read full description

Polar Flow: Your Personal Sports, Fitness, and Health Companion The exclusive app designed to maximize the potential of your Polar devices. Key Features: Activity Tracking: Monitor your daily activity, steps, calories burned, and distance to stay motivated throughout the day. Training Analysis: Dive deep into your workouts with detailed data on heart rate, speed, pace, distance, power, and more. Understand the impact of each session and optimize your training routines. Sleep Insights: Discover how well you sleep with advanced sleep tracking. Get feedback on sleep stages and quality to improve your rest and recovery. See how sleep boosts your day and track skin temperature changes. Training Load & Recovery: Understand how your training sessions strain your body and get recommendations on recovery time to prevent overtraining. Manage your watch and profile: Customize and manage your Polar device, Sports profiles for different activities, Routes, and Training Targets. Wireless Syncing: Automatically sync data from your Polar devices for real-time updates, notifications, and other insights. Stay Connected: Connect your profile and sync your data with Strava, TrainingPeaks, Adidas, komoot, and many other services. Why Choose Polar Flow? Personalized Guidance: Receive personalized feedback and guidance and understand your progress. Comprehensive Ecosystem: Integrates seamlessly with Polar watches, heart rate monitors, and more for a holistic experience. User-Friendly Interface: Navigate your data effortlessly with our intuitive and clean design. Notification support: Your Polar watch will receive the same notifications as your phone screen—incoming calls, messages, and app notifications. Secure and Private: Your data is safely stored and protected, giving you peace of mind as you focus on your journey. Polar Flow app allows you to share some of your wellness data with Apple Health. This includes details of your training, your heart rate, and steps. Please note Polar Flow app is not intended for medical or diagnostic use. Get Started Today! Download Polar Flow and unlock the full potential of your Polar devices. You can find more info at https://www.polar.com/flow Connect with us! Instagram: www.instagram.com/polarglobal Facebook: www.facebook.com/polarglobal YouTube: www.youtube.com/polarglobal Find out more about Polar products at https://www.polar.com/en/products

About

ThatLiftTracker

Features
Read full description

ThatLiftTracker lets you keep track of all of your favourite and not so favourite lifts in the gym. Whether you're in the gym to build muscle, lose weight or just to get stronger. Tracking your lifts helps you to stick with your workouts and lets you look back on how far you have come. ThatLiftTracker provides a set of pre-defined lift types, you can stick with these or add your own custom lifts and track individual sets with the weight and number of reps. If you want to set your bodyweight in the apps settings, ThatLiftTracker will also keep a note of your bodyweight when you track a new lift personal best. You can also view your progress over the last 7 days, month or year once you get tracking. However you use ThatLiftTracker, enjoy your fitness journey, wherever it takes you!

Screenshots

Polar Flow4 screens
ThatLiftTracker4 screens

Verdict

The call

The clearest difference is price: Polar Flow at Free against ThatLiftTracker's $0.99. ThatLiftTracker's advantage is in-app purchases (none vs 1) and update cadence (weekly vs monthly). 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

Polar Flow is free to download; ThatLiftTracker costs $0.99 up front. Polar Flow sells 1 in-app purchase, starting at $8.99 per month. ThatLiftTracker asks for nothing beyond the download.

UpkeepUpdate frequency

Polar Flow ships an update monthly, ThatLiftTracker weekly. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 6 level
Polar Flow versus ThatLiftTracker: the parameters behind the verdict, then further details
ParameterPolar FlowThatLiftTracker
PriceFree — better$0.99
Rating4.6 (50K ratings) — better—
Positive reviews49.6% of reviews—
Number of ratings50K — better—
Update frequencyMonthlyWeekly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.012.0 — better
Further details — not scored
Size189 MB28 MB
Age rating4+4+
DeveloperPolar ElectroBarney Randall

Bugs and requests

Polar Flow

Reported bugs

3 issues
  • App crashes during syncing
  • Inconsistent data sync between watch and app
  • Firmware updates causing loss of user data

Requested features

4 requests
  • Ability to manually edit workout data
  • Integration with more third-party apps
  • More advanced training programs and coaching
  • Improved sleep tracking and analysis

ThatLiftTracker

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Polar Flow

Subscriptions1
  • Polar Fitness Program1 Month trial$8.991 Month
None

ThatLiftTracker

No in-app purchases

Questions

Is Polar Flow free?
Polar Flow is free to download, with in-app purchases available.
Is ThatLiftTracker free?
ThatLiftTracker costs $0.99, with no in-app purchases.
Do Polar Flow or ThatLiftTracker have ads?
Neither Polar Flow nor ThatLiftTracker shows ads.
Which is updated more often, Polar Flow or ThatLiftTracker?
Polar Flow ships an update monthly, and ThatLiftTracker weekly. Most recently, Polar Flow was updated on October 30, 2026 and ThatLiftTracker on October 25, 2026.

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