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.
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.
- Profile management
- Class booking
- Class reservations
- Community connection
- Fitness transformation
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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.
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.
- Access training plans
- Track workouts and meals
- Follow exercise videos
- Monitor daily habits
- Set and track goals
- Message your coach
- Join digital communities
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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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
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.
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.
| Parameter | Union Three | Seriously Strong Training App |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (259 ratings) | 5.0 (20 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 259 — better | 20 |
| Update frequency | Every 3 weeks — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 16.0 | 15.5 — better |
| Further details — not scored | ||
| Size | 38 MB | 170 MB |
| Age rating | 4+ | 4+ |
| Developer | Mariana Tek Corporation | Seriously Strong Training LLC |
Customer experience
Union Three
Seriously Strong Training App
In-app purchases
Union Three
No in-app purchases
Seriously Strong Training App
No in-app purchases
Questions
Is Union Three free?
Is Seriously Strong Training App free?
Which has better reviews, Union Three or Seriously Strong Training App?
Do Union Three or Seriously Strong Training App have ads?
Which is updated more often, Union Three or Seriously Strong Training App?
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