The Best Erg Tracking Apps in 2026: Log Smarter, Train Harder

By the Watta Team · Updated 9 October 2026

Quick Verdict

Erg tracking has moved beyond manual logbooks and basic Bluetooth connections. In 2026, you can photograph your PM5 screen and have AI extract every metric, get real-time force curve coaching, or sync to platforms that manage your entire training periodisation. The best erg tracking app depends on whether you prioritise capture speed, real-time feedback, analytics depth, or long-term planning. Here is how the dedicated erg tracking options stack up.

Watta vs Best Erg Tracking Apps 2026: Watta is a free, AI-powered rowing workout tracker purpose-built for erg athletes. It features OCR screen capture, a 0-100 Effort Score (cardiac load 40%, work output 35%, pacing 15%, economy 10%), Karvonen heart rate zones, clubs and squads. Free on iPhone.

Feature Comparison

Feature	Watta	Best Erg Tracking Apps 2026
Watta (AI OCR Capture)	Photograph PM5 screen, AI extracts all data. 0-100 Effort Score. Karvonen HR zones. Clubs/squads. Strava sync. Free. iOS.	Fastest capture method. Best analytics. No Bluetooth required. Club features for team tracking.
ErgData (Official Concept2)	Bluetooth PM5 sync. Real-time data display. Force curve. Interval breakdown. Logbook sync. Free. iOS & Android.	Official app. Best force curve display. Automatic Logbook sync. The standard companion for PM5.
Concept2 Logbook (Web)	Lifetime metres tracking. World rankings. Official challenges. Manual or ErgData sync entry. Free. Web only.	The canonical long-term record. Million-metre club. Seasonal challenges with global community.
Stride (Bluetooth)	Bluetooth PM5 connection. Guided workouts. Real-time display. Clean UI. Free tier + Premium. iOS.	Polished guided workout experience. Good for structured interval sessions on the erg.
Asensei (AI Coaching)	AI technique coaching via camera. Bluetooth PM5 data. Real-time form feedback. Subscription. iOS.	Unique AI form analysis for technique improvement. Best for rowers focused on movement quality.
Strava (Multi-Sport)	Indoor rowing as one of many activity types. Social feed, kudos, segments. Free + $11.99/month Premium. All platforms.	Best social platform for sharing erg sessions. Minimal rowing-specific analytics.

Why Choose Watta

+AI photo capture is the fastest way to log a Concept2 workout — no Bluetooth pairing, no manual typing, no connectivity issues
+Four-component Effort Score rates every session on cardiac load, work output, pacing and economy in one number
+Free clubs and squads make it the best option for teams, university programmes, and rowing squads tracking together

Where Best Erg Tracking Apps 2026 Excels

+ErgData's real-time force curve display remains the gold standard for stroke technique feedback during the workout
+The Concept2 Logbook's lifetime metre tracking and official challenges have decades of community buy-in

Detailed Breakdown

For dedicated erg tracking, the choice comes down to when and how you want your data captured and what you want done with it. ErgData captures data in real time via Bluetooth — you get force curves, live metrics, and automatic Logbook sync as you row. This is the standard approach and it works well when Bluetooth cooperates. Watta captures data after the workout via AI photo recognition — you photograph the PM5 summary screen and the OCR engine extracts split, distance, time, stroke rate, heart rate, and more in seconds. No pairing, no connectivity issues, no setup. Where Watta differentiates most strongly is in what happens next. ErgData stores your data; Watta analyses it. The Effort Score rates your session 0-100 by weighting cardiac load (how hard your heart worked, 40%), work output (how much power you produced, 35%), pacing (how evenly you executed, 15%), and economy (how efficient your strokes were, 10%). Over time, these scores reveal trends that raw data cannot — like whether your fitness is genuinely improving or you are just rowing more. The Concept2 Logbook remains essential for lifetime metres and official challenges. Strava is where your erg sessions reach the broader fitness world. The optimal stack for a serious rower in 2026: ErgData during the workout, Watta after for analytics, Strava for social distribution.

Frequently Asked Questions

What is the fastest way to log a Concept2 workout?

A photo of the PM5 screen is the fastest method when nothing was paired before the piece — Watta, ErgScan and ErgTracker all read the screen in seconds with no typing. ErgData's Bluetooth capture is just as quick when you remembered to connect and the link held.

Should I use ErgData or Watta for erg tracking?

They excel at different things. ErgData is best during the workout for real-time force curves and Logbook sync. Watta is best after the workout for Effort Score, heart rate zone analysis, and social features. Many rowers use both.

Do erg tracking apps work with machines other than Concept2?

Most erg tracking apps are built for Concept2 machines with PM5 monitors. Watta's screen reader is built for Concept2 performance monitors (PM5, PM4, PM3) and does not support other brands' displays. Some apps like Strava can log generic indoor rowing from any machine but without erg-specific metrics.

What erg tracking features matter most?

For casual rowers: ease of logging and basic metric tracking. For competitive rowers: split trends, pacing analysis, heart rate zones, and composite effort scoring. For coached athletes: team visibility, data sharing, and long-term load tracking.

Is it worth paying for an erg tracking app?

Watta and ErgData are both free and cover the core needs of most rowers. Paid options like TrainingPeaks ($19.95/month) add value for athletes who need structured periodisation and coaching workflows. For most rowers, the free tier of Watta and ErgData is sufficient.

Every erg counts.

Photograph your erg screen after the piece and Watta logs it for you.

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