Comparison

Union Three vs Seriously Strong Training App

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

Head to head
About

Union Three

This app provides a platform for managing your fitness profile and booking classes. It fosters a supportive community focused on self-acceptance and personal growth through various fitness activities.

Highlights
  • Profile management
  • Class booking
  • Class reservations
  • Community connection
  • Fitness transformation
Features
Read full description

At UNION THREE, we are about acceptance, both of ourselves and each other. This is a space where you are free to be yourself. Whether it's your 500th class or you're walking through our doors for the very first time, you will be treated with respect and love. Compassion, kindness and a belief in what's possible within these walls is what binds us. Our studio gives people the confidence they crave and inspires them to be strong, reach new heights, and most importantly, have fun. We've created a place where people feel comfortable transforming into the best versions of themselves. We connect them to a community of like-minded and inspired individuals. We're here for you and we're all in this together. Welcome home. Welcome to Union Three. This app allows users to manage their profile and buy and reserve classes.

About

Seriously Strong Training App

Access personalized workout programs and track your fitness journey. Monitor workouts, nutrition, habits, and measurements with coach guidance. Join communities for motivation and earn badges for achievements.

Highlights
  • Access training plans
  • Track workouts and meals
  • Follow exercise videos
  • Monitor daily habits
  • Set and track goals
  • Message your coach
  • Join digital communities
Features
Read full description

With the Seriously Strong Training App, you will have access to workout programs designed specifically to help you reach your fitness and health goals! You can follow & track your workouts, your nutrition, your lifestyle habits, measurements and results–all with the help of your coach. FEATURES: - Access training plans and track workouts - Follow along to exercise and workout videos - Track your meals and make better food choices - Stay on top of your daily habits - Set health and fitness goals and track progress towards your goals - Gain milestone badges for achieving new personal bests and maintaining habit streaks - Message your coach in real-time - Be part of digital communities to meet people with similar health goals and stay motivated - Track body measurements and take progress photos - Get push notification reminders for scheduled workouts and activities - Connect your Apple Watch to track workouts, steps, habits, and more right from your wrist - Connect to other wearable devices and apps like the Apple Health App, Garmin, Fitbit, MyFitnessPal, and Withings devices to track workouts, sleep, nutrition, and body stats and composition Download the app today!

Screenshots

Union Three4 screens
Seriously Strong Training App4 screens

Verdict

The call

The clearest difference is ratings volume: Union Three at 259 against Seriously Strong Training App's 20. Union Three also leads on update cadence (every 3 weeks vs every 6 weeks). Seriously Strong Training App's advantage is monetization model (free vs ad-supported) and device support (4 vs 1). On price, rating, review sentiment 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Union Three against 5.0 for Seriously Strong Training App. That said, the two scores are not equally well evidenced: Union Three has 259 ratings behind it against 20, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Union Three ships an update every 3 weeks, Seriously Strong Training App every 6 weeks. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
Union Three versus Seriously Strong Training App: the parameters behind the verdict, then further details
ParameterUnion ThreeSeriously Strong Training App
PriceFreeFree
Rating5.0 (259 ratings)5.0 (20 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings259 — better20
Update frequencyEvery 3 weeks — betterEvery 6 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhoneiPhone, iPad, iPod, Apple Watch — better
Requires iOS16.015.5 — better
Further details — not scored
Size38 MB170 MB
Age rating4+4+
DeveloperMariana Tek CorporationSeriously Strong Training LLC

Customer experience

Union Three

All ratings259 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Seriously Strong Training App

All ratings20 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Union Three

No in-app purchases

None

Seriously Strong Training App

No in-app purchases

Questions

Is Union Three free?
Union Three is free to download, with no in-app purchases.
Is Seriously Strong Training App free?
Seriously Strong Training App is free to download, with no in-app purchases.
Which has better reviews, Union Three or Seriously Strong Training App?
Seriously Strong Training App is rated higher. Union Three averages 5.0 out of 5 from 259 ratings, while Seriously Strong Training App averages 5.0 from 20 ratings.
Do Union Three or Seriously Strong Training App have ads?
Neither Union Three nor Seriously Strong Training App shows ads.
Which is updated more often, Union Three or Seriously Strong Training App?
Union Three ships an update every 3 weeks, and Seriously Strong Training App every 6 weeks. Most recently, Union Three was updated on October 23, 2026 and Seriously Strong Training App on October 24, 2026.

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