Comparison

Polar Flow vs Shoe Sherlock

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

Shoe Sherlock

Features
Read full description

Shoe Sherlock ranks shoe picks for how you train, each with the reasons it made the list. General picks are free, with no account needed. Pro adds Fit Scan: three photos of one foot estimate your arch height, foot width and how your foot rolls, and Pro ranks shoes using that scan. Try Pro with a one week free trial, then a paid subscription unless you cancel. HOW IT WORKS 1. Choose your activity: running, trail running, walking, gym and training, weightlifting, casual athletic and more. 2. Tell it your experience and how often you train. 3. Get up to five ranked shoes, each with the reasons it made the list, plus estimated weight, drop and cushioning where we have them. 4. With Pro, add Fit Scan, your fit preferences, favourite shoes and budget. FIT SCAN (PRO) Three photos of one foot: top, side and sole. Fit Scan estimates your arch height, foot width and how your foot rolls, and gives simple advice on fit. Fit Scan is a guide, not a diagnosis. If you have foot pain, please see a podiatrist. Photos are not kept by Shoe Sherlock. They go to our AI provider, Mistral AI, for analysis, and Mistral's own retention terms apply. WHAT IS FREE • Unlimited general searches for every activity in the app. • Up to five ranked shoes per search, each with its reasons. • No account needed. WHAT PRO ADDS • Fit Scan, with rankings that use your arch and, where the catalogue records it, your foot width. • Matching for fit preferences you pick, such as more stability, more arch support or extra heel cushioning. • Shoes you have loved, used to favour brands you like. • Brand and cushioning preferences and a budget filter. • Unlimited tailored searches. SUBSCRIPTION DETAILS • Shoe Sherlock Pro comes as a monthly or a yearly plan. The price for your country is shown in the App Store before you subscribe. • New subscribers get a one week free trial. Unless you cancel at least 24 hours before it ends, your Apple Account is charged the plan price when the trial ends. • Payment is charged to your Apple Account when you confirm the purchase, or when the free trial ends. • The subscription renews automatically unless cancelled at least 24 hours before the end of the current period. • Sign in with Apple to subscribe. Manage or cancel in your Apple Account settings. Terms of Use: https://www.shoesherlock.com/terms Privacy Policy: https://www.shoesherlock.com/privacy

Screenshots

Polar Flow4 screens
Shoe Sherlock4 screens

Verdict

The call

The clearest difference is in-app purchases: Shoe Sherlock at none against Polar Flow's 1. Shoe Sherlock also leads on iOS requirement (15.0 vs 17.0). On price, update cadence, 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

Both are free to download. Polar Flow sells 1 in-app purchase, starting at $8.99 per month. Shoe Sherlock asks for nothing beyond the download.

UpkeepUpdate frequency

Polar Flow ships an update monthly, Shoe Sherlock fortnightly. The most recent releases landed on November 1, 2026 and October 28, 2026 respectively.

Scorecard2 real differences · 8 level
Polar Flow versus Shoe Sherlock: the parameters behind the verdict, then further details
ParameterPolar FlowShoe Sherlock
PriceFreeFree
Rating4.6 (50K ratings) — better—
Positive reviews49.6% of reviews—
Number of ratings50K — better—
Update frequencyMonthlyFortnightly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size189 MB24 MB
Age rating4+4+
DeveloperPolar ElectroOrigae

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

Shoe Sherlock

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

Shoe Sherlock

No in-app purchases

Questions

Is Polar Flow free?
Polar Flow is free to download, with in-app purchases available.
Is Shoe Sherlock free?
Shoe Sherlock is free to download, with no in-app purchases.
Do Polar Flow or Shoe Sherlock have ads?
Neither Polar Flow nor Shoe Sherlock shows ads.
Which is updated more often, Polar Flow or Shoe Sherlock?
Polar Flow ships an update monthly, and Shoe Sherlock fortnightly. Most recently, Polar Flow was updated on November 1, 2026 and Shoe Sherlock on October 28, 2026.

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