If you own a Concept2 rower, you already have the best piece of rowing equipment money can buy. But the PM5 monitor on its own only scratches the surface of what your erg data can tell you. The right app transforms raw splits and stroke rates into actionable training insights.
The Concept2 app ecosystem has matured significantly. In 2026, rowers can choose from dedicated tracking platforms, AI coaching tools, and even virtual reality racing environments. But which app is actually worth your time?
I have spent hundreds of hours on the erg testing these tools. Here is a honest breakdown of the five best Concept2 apps available right now, who each one is best for, and how they compare on features and price.
1. ErgManiac - Best for Data-Driven Training and AI Coaching
ErgManiac is a training tracker and AI coaching platform purpose-built for Concept2 users. It connects directly to your Concept2 logbook via the official API, pulling in every workout automatically. From there, it layers on AI-powered coaching, performance analytics, and a full suite of free rowing tools.
Key features:
- Automatic Concept2 logbook sync
- AI coach that builds personalized training plans based on your data
- Performance trend analysis across all workout types
- Free tools including a 2K predictor, zone calculator, pace calculator, and erg percentile rankings
- Calorie calculator and drag factor guide
Pricing: Free tier with core tracking. Premium plans for AI coaching and advanced analytics.
Best for: Rowers who want to train smarter without hiring a human coach. If you care about structured progression, understanding your training zones, and getting personalized feedback on your workouts, ErgManiac fills a gap that no other app addresses well.
Where it stands out: The AI coaching is the differentiator. Other apps show you data. ErgManiac interprets it and tells you what to do next. The free tools are also genuinely useful on their own, particularly the heart rate zone calculator and FTP power zone calculator.
2. ErgData - Best for Simple Workout Logging
ErgData is Concept2's own official companion app. It connects to the PM5 via Bluetooth and records your workouts directly to the Concept2 Online Logbook.
Key features:
- Official Concept2 app with guaranteed PM5 compatibility
- Real-time workout display on your phone or tablet
- Direct logbook integration
- Workout history and basic stats
Pricing: Free.
Best for: Rowers who want a no-fuss way to log workouts and do not need coaching or detailed analytics. If you just want your meters to show up in the Concept2 logbook, ErgData does the job reliably.
Limitations: The analytics are minimal. You get basic workout summaries, but there is no training plan generation, no performance predictions, and no way to understand trends over time. It is a logging tool, not a coaching tool.
3. ErgZone - Best for Heart Rate-Based Training
ErgZone pairs heart rate monitoring with Concept2 data to give rowers a heart rate-focused training experience.
Key features:
- Real-time heart rate zone display during workouts
- Heart rate and pace overlay
- Training zone configuration
- Bluetooth heart rate monitor support
- Session history with heart rate data
Pricing: One-time purchase (around $10).
Best for: Rowers who train primarily by heart rate and want a clear, real-time zone display during workouts. It is especially useful if you follow a polarized training approach where staying in the correct zone is critical.
Limitations: It focuses narrowly on heart rate. There is no AI coaching, no logbook sync, and limited long-term tracking. If you want a broader training picture, you will need to pair it with another app. For understanding your zones before you start, the ErgManiac zone calculator is a helpful companion.
4. EXR - Best for Motivation and Virtual Racing
EXR (Ergometer Racing) brings a gaming element to indoor rowing. It renders virtual environments that respond to your rowing in real time, letting you race against other rowers or row through scenic courses.
Key features:
- Real-time virtual rowing environments
- Multiplayer racing against other rowers worldwide
- Structured workout programs with visual feedback
- Leaderboards and challenges
- Compatible with Concept2, WaterRower, and other ergs
Pricing: Subscription-based, around $15/month.
Best for: Rowers who struggle with motivation on the erg. If staring at the PM5 monitor for 60 minutes makes you want to quit, EXR adds a visual and competitive layer that genuinely makes longer sessions more tolerable.
Limitations: The subscription cost adds up. The training structure is relatively basic compared to a proper coaching tool. You are paying primarily for the visual experience and community, not for training intelligence. If structured training is your priority, the gamification can actually be a distraction from hitting the right paces.
5. Asensei - Best for Rowing Technique Feedback
Asensei takes a different approach entirely. It uses sensor technology and audio coaching to analyze and correct your rowing stroke in real time.
Key features:
- Real-time technique analysis
- Audio coaching cues during workouts
- Stroke-by-stroke feedback
- Structured programs designed by rowing coaches
- Form scoring and tracking over time
Pricing: Requires Asensei hardware sensor plus a subscription (total cost significantly higher than other options).
Best for: Beginners who do not have access to a rowing coach and want to develop proper technique. Also useful for experienced rowers recovering from injury who need to rebuild their stroke pattern.
Limitations: The hardware requirement adds cost and complexity. The technique feedback, while innovative, has limits compared to an actual coach watching you row. The training programming is secondary to the technique focus.
Feature Comparison Table
| Feature | ErgManiac | ErgData | ErgZone | EXR | Asensei | |---|---|---|---|---|---| | C2 Logbook Sync | Yes | Yes | No | No | No | | AI Coaching | Yes | No | No | No | No | | Training Plans | Yes | No | No | Basic | Yes | | HR Zone Training | Yes | No | Yes | No | No | | Virtual Racing | No | No | No | Yes | No | | Technique Feedback | No | No | No | No | Yes | | Free Tier | Yes | Yes | No | No | No | | Free Tools | Yes | No | No | No | No |
Which App Should You Choose?
The answer depends on where you are in your rowing journey and what you need most.
If you are just starting out and want to log workouts without overthinking it, start with ErgData. It is free, it is official, and it works.
If you struggle with motivation and find the erg boring, try EXR. The virtual environments and racing community can keep you coming back.
If you need technique help and do not have access to a coach, Asensei's real-time feedback is worth considering despite the higher cost.
If you want to actually get faster and train with purpose, ErgManiac is the strongest option. The AI coaching bridges the gap between logging workouts and understanding what those workouts should look like. The free 2K predictor alone is worth bookmarking, and the percentile rankings give you honest context about where your fitness stands.
Most serious rowers end up using more than one app. A common combination is ErgManiac for training intelligence and planning, paired with ErgData for reliable real-time PM5 connection. That covers both the "during workout" and "between workouts" needs without breaking the bank.
The Bottom Line
The Concept2 app ecosystem in 2026 is better than ever. Whether you want simple logging, AI-powered coaching, virtual racing, or technique analysis, there is a dedicated tool for your needs. The best approach is to start with what matters most to you right now, and add tools as your training evolves.
For rowers who want to get faster and train smarter, ErgManiac combines the data tracking, AI coaching, and free rowing tools that make the biggest difference in actual performance. Try the free tools to see if the approach resonates with how you like to train.
