Your training effort should lead somewhere. WattPlan exists to help cyclists turn commitment into real performance improvement.
Good cycling coaching costs $150-400 per month. Most cyclists can't justify that expense, especially when starting out. So they turn to generic training plans that don't adapt to their lives, or they piece together advice from forums and YouTube videos.
The result? Wasted effort. Inconsistent progress. Frustration when life disrupts a rigid 12-week plan. Many cyclists train hard but never see the improvement they deserve.
WattPlan was built to change this. We believe intelligent coaching should be accessible to everyone who's willing to put in the work.
WattPlan is built on proven sports science, not fitness trends. Our training methodology draws from decades of research into power-based training principles that have guided elite athletes to podiums worldwide.
Every calculation is deterministic and testable — not AI-generated guesswork. The codebase includes nearly 4,000 automated test assertions validating these formulas against known values. The AI coach is an intelligent layer on top of this foundation — it interprets your data and communicates in natural language — but the underlying training logic is hard-coded sports science, not a language model making things up.
If you recognise these models from TrainingPeaks, WKO5, or your coach's spreadsheets, that's the point. WattPlan applies the same proven methodology — it just makes it accessible without a $200/month coaching fee.
WattPlan follows the design principles of Dieter Rams. We believe a training tool should be like a precision instrument - unobtrusive, honest, and thorough down to the last detail.
"Good design is as little design as possible. Less, but better - because it concentrates on the essential aspects, and the products are not burdened with non-essentials." - Dieter Rams
We reject the gamified, neon-colored aesthetic of typical fitness apps. WattPlan looks like a high-end bike computer or precision instrument. The UI recedes so your data can speak.
This philosophy extends to features. We don't add capabilities for their own sake. Every element serves a purpose: helping you train more effectively and understand your performance more clearly.
Your training data is used for one thing: giving you better coaching. The AI coach reads your workouts, fitness metrics, and conversation history to give personalised advice — but that data stays within your account and is never used to train AI models.
In the future, we plan to use anonymised, aggregated training data to build smarter coaching models — understanding how athletes at different levels respond to different training loads, what progression rates work best, and where common plateaus occur. This will never include personally identifiable information, and you'll always be able to opt out.
"Your FTP is 250w." Not "Great job! Your FTP is 250w!" We present data honestly and let you draw your own conclusions. Encouragement comes from progress, not empty praise.
Life happens. Training plans should adapt to missed workouts, schedule changes, and unexpected events without guilt or judgment. Flexibility is built into the system.
Your training data is yours. We don't sell it, share it with advertisers, or use it for anything beyond improving your coaching experience. Period.
WattPlan is built by a solo developer who rides, races, and uses the app every day. There's no venture capital, no boardroom, no marketing department writing copy about features that don't exist yet.
Every feature ships because a real cyclist needed it. Bugs get fixed the same day they're found. Ideas from users become features in days, not quarters. You're not a data point in a growth metric — you're someone who wants to ride faster, and so do we.
Power output is measured in watts. Watts are the universal language of cycling performance — objective, measurable, and honest. WattPlan exists to help you put those watts to work.
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