B3 Runtime vs Relentless Training
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
B3 Runtime
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B3 Runtime is an interactive, location-based quiz app where the users have to explore their surroundings while at the same time answer tricky questions. As the player moves throughout the checkpoints of a course, questions are prompted that the player then has to answer. By combining the best of two worlds: physical activities with intellectual stimulation, this app provides the users with an exciting experience! Continued use of GPS running in the background can dramatically decrease battery life.
Relentless Training
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.
- Personalized workout programs
- Workout and meal tracking
- Habit and measurement tracking
- Coach messaging
- Digital communities
- Milestone badges
- Wearable device integration
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With the Relentless 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
B3 Runtime and Relentless Training are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
B3 Runtime ships an update every 3 weeks, Relentless Training every 5 weeks. The most recent releases landed on October 3, 2026 and October 4, 2026 respectively.
| Parameter | B3 Runtime | Relentless Training |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (6 ratings) — better |
| Number of ratings | — | 6 — better |
| Update frequency | Every 3 weeks — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 44 MB | 181 MB |
| Age rating | 12+ | 4+ |
| Developer | B3 Innovation AB | LeCount Personal Training LLC |
In-app purchases
B3 Runtime
No in-app purchases
Relentless Training
No in-app purchases









