Comparison

Workout Hub vs Sauna Flow

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

Head to head
About

Workout Hub

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Workout Hub is the perfect app for those engaged in strength sports who want to track their progress and compete with friends. The app offers an easy-to-use interface to log and analyze your workouts. You can add friends, see their progress, and even challenge them to repeat your workouts. Key Features: • Track every aspect of your workouts: exercises, sets, and duration. • Add friends and compete with them in workout challenges. • Create custom exercises targeting specific muscle groups. • View workout history and progress charts to track improvements. • Challenge friends and see if they can match your workouts. Who is this app for? Workout Hub is designed for fitness enthusiasts, especially those involved in strength training, who want to improve their results in the gym. It makes tracking progress quick and easy. Why choose Workout Hub? The app simplifies workout tracking, offers social integration to motivate users through competition, and allows you to add custom exercises tailored to your goals. Start tracking your workouts today and reach new heights with friends!

About

Sauna Flow

Features
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Time your sauna sessions from your wrist and see your heart rate zone as you go. Sauna Flow is a sauna timer for Apple Watch that keeps a clear record of every session on your iPhone. Set a target time, start on your Apple Watch, and stay focused on the heat. Afterwards, your iPhone shows how the session went and how your routine is building week by week. ā–  Round mode • Plan 1 to 5 rounds of sauna, cool-down and rest on your Apple Watch. • Each sauna phase starts when you tap. Cool-down and rest move on automatically, with a haptic at each change. • Your iPhone shows a breakdown for every round. ā–  Live heart rate on your Apple Watch • See your current heart rate and zone during the session, with optional alerts when your zone changes. • Zones are based on a max heart rate you choose: the default, an age-based estimate, or your own value. ā–  Your sauna routine • A session calendar that marks the days you went. • Current and longest streak, plus a weekly goal you set (1 to 14 sessions). • Optional reminders on the weekdays and at the time you pick. They stay off unless you turn them on. • Session details: duration, average and highest heart rate, time in each zone, plus effort and stability scores for single sessions. • Export your sessions to CSV or share a session card. ā–  On your watch face • Add the Sauna Flow complication to open the app in one tap. ā–  Sessions you can count on • Each session stays on your Apple Watch until your iPhone confirms it is saved, and is resent automatically. • If the app closes mid-session, the session is recovered and saved as interrupted. • If your Apple Watch gets too hot, it warns you. If it overheats, the session is saved and ended. ā–  Apple Health • Sessions and heart rate data are saved to Apple Health. ā–  Your language • Korean, English, German, Finnish, Japanese, Dutch and Russian. Choose in the app's settings; your Apple Watch follows. ā–  Premium • Your 3 most recent sessions are always available. Sauna Flow Premium, an in-app purchase, unlocks your full session history and full export. ā–  What you need • Apple Watch with watchOS 10 or later to record sessions. ā–  Please note • Sauna Flow is not a medical device and does not provide medical advice. Heart rate zones are informational estimates, not medical measurements. • If you have a cardiovascular condition or other health concerns, consult your doctor before using a sauna. • Stay hydrated and avoid overheating. Stop your session immediately if you feel unwell. • Apple Watch and iPhone are not designed for extreme heat. Do not expose your device to sauna temperatures beyond its operating range (Apple Watch: 0–35°C / 32–95°F); keep it somewhere safe. Protecting your device is your responsibility.

Screenshots

Workout Hub4 screens
Sauna Flow4 screens

Verdict

The call

The clearest difference is device support: Sauna Flow at 3 against Workout Hub's 1. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

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

Both are free to download. Workout Hub sells 6 in-app purchases, starting at $1.99 per month and Sauna Flow sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Workout Hub ships an update fortnightly, Sauna Flow every 3 weeks. The most recent releases landed on October 5, 2026 and October 30, 2026 respectively.

Scorecard1 real difference Ā· 5 level
Workout Hub versus Sauna Flow: the parameters behind the verdict, then further details
ParameterWorkout HubSauna Flow
PriceFreeFree
Update frequencyFortnightly — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone, iPad, Apple Watch — better
Requires iOS17 — better17.6
Further details — not scored
Size20 MB7 MB
Age rating4+17+
DeveloperVLADYSLAV BEHIMAndroa Inc.

In-app purchases

6 purchases

Workout Hub

Subscriptions3
  • Full access$1.991 Month
  • Full access for 3 months$4.993 Months
  • Full access for 1 year$19.991 Year
One-time3
  • Support the developer$0.99
  • Support the developer$4.99
  • Support the developer$9.99
1 purchases

Sauna Flow

One-time1
  • SaunaFlow Premium$2.99

Questions

Is Workout Hub free?
Workout Hub is free to download, with in-app purchases available.
Is Sauna Flow free?
Sauna Flow is free to download, with in-app purchases available.
Do Workout Hub or Sauna Flow have ads?
Neither Workout Hub nor Sauna Flow shows ads.
Which is updated more often, Workout Hub or Sauna Flow?
Workout Hub ships an update fortnightly, and Sauna Flow every 3 weeks. Most recently, Workout Hub was updated on October 5, 2026 and Sauna Flow on October 30, 2026.

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