Relentless Trainer vs Thundr App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Relentless Trainer
This AI-powered coach creates daily personalized workouts for various fitness disciplines, adapting to your current state and history. It offers nutrition plans, extensive exercise libraries with videos, and flexible training options. Track progress and integrate with health apps and smart devices for a comprehensive fitness experience.
- AI-powered personalized workouts
- Nutrition program
- 1200+ exercises with videos
- Flexible training options
- Integration with health apps
- Specialized training tracks
Read full descriptionHide full description
Relentless Trainer: Your AI-Powered Personal Coach Born from the CrossFit® community and backed by over 10 years of data, we present Relentless Trainer - the first AI trainer for CrossFit®, Weightlifting, Gymnastics, Strength Training, Endurance sports, Mobility, Hyrox, Bodybuilding, Hybrid training, ATHX and Calisthenics. Race-optimized goal engine for Running, Skiing, Biking and Rowing. We even have Tactical Fitness, a specialized track for military and rescue staff. Forget generic training programs. Relentless Trainer adapts your workout daily based on: Your current state Your fitness level Your recent training history Your strengths and weaknesses Features: Nutrition program for weight loss or muscle mass Personalized workouts Over 1200 exercises with descriptions and videos Flexible training time and equipment Specialized training tracks Integration with health apps and smart devices Whether you want to improve your Snatch, Squat, Bench press, rowing, running, pull-ups, or muscle-ups, the trainer has you covered. Relentless Trainer is a month-to-month subscription service, easily cancellable anytime. No long-term contracts or cancellation fees - we just want you to love training! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Thundr App
Access your training and nutrition plans, join group challenges, and schedule appointments with coaches. This app supports physical training and mental toughness for a winning mindset.
- Workout tracking
- Nutrition information access
- Group challenges
- Scheduled workout viewing
- Coach appointment booking
Read full descriptionHide full description
Crush your Thundrbro & Alpha Babe workouts from anywhere with the Thundr App! Gain access to all your training and nutrition information, join group challenges, see upcoming scheduled workouts, and book appointments with our knowledgeable Coaches. Founded by Dave Lipson & Camille Leblanc-Bazinet, our Mission is to make the world a better place through physical training, mental toughness with a winning mindset, while also elevating those around you. If you enjoy your training through the Thundr App, we’d love it if you took a second to leave a positive review because it helps us improve and also helps us reach more athletes. Thank you!!
Screenshots
Verdict
The clearest difference is rating: Relentless Trainer at 4.9 against Thundr App's 3.8. Relentless Trainer also leads on update cadence (every 3 days vs every 27 months). Thundr App's advantage is in-app purchases (none vs 9). On price, review sentiment, ratings volume 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. Relentless Trainer sells 9 in-app purchases, starting at $9.99 per month. Thundr App asks for nothing beyond the download.
Relentless Trainer holds the better App Store score, 4.9 against 3.8. Both are backed by a comparable volume of ratings — 15 and 12 respectively. Written reviews complicate that: 60% of Relentless Trainer's written reviews are positive against 64% of Thundr App's, so the app with the better star average is not the one people write more warmly about.
Relentless Trainer ships an update every 3 days, Thundr App every 27 months. The most recent releases landed on October 11, 2026 and October 2, 2026 respectively.
| Parameter | Relentless Trainer | Thundr App |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (15 ratings) — better | 3.8 (12 ratings) |
| Positive reviews | 60.0% of reviews | 63.6% of reviews — better |
| Number of ratings | 15 — better | 12 |
| Update frequency | Every 3 days — better | Every 27 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Requires iOS | 16.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 223 MB | 46 MB |
| Age rating | 4+ | 12+ |
| Developer | Relentless Method AB | DSS Sports Group Inc |
Customer experience
Relentless Trainer
Thundr App
In-app purchases
Relentless Trainer
- Dash Monthly Subscription14 Days trial$9.991 Month
- Core Monthly Subscription14 Days trial$17.991 Month
- Monthly14 Days trial$23.991 Month
Show 6 moreShow fewer
- Dash Quarterly Subscription14 Days trial$23.993 Months
- Core Quarterly Subscription14 Days trial$44.993 Months
- Quarterly14 Days trial$59.993 Months
- Dash Yearly Subscription14 Days trial$79.991 Year
- Core Yearly Subscription14 Days trial$149.991 Year
- Yearly14 Days trial$195.991 Year
Thundr App
No in-app purchases
Questions
Is Relentless Trainer free?
Is Thundr App free?
Which has better reviews, Relentless Trainer or Thundr App?
Do Relentless Trainer or Thundr App have ads?
Which is updated more often, Relentless Trainer or Thundr App?
Other comparisons















