Adaptive plans for 5K to ultra that rewrite themselves as you train. Real coach voice during your runs. VDOT-based pace zones tuned to your fitness, not a generic level. A plan that pivots when you're sick, hurt, or just had a bad week.
My first marathon was Boston 2023 — I ran 4:45 and was wrecked. Three years later, Boston 2026, I came back and ran 3:20. Every running app I tried along the way was charging $120–150 a year for what's basically a generated plan and a stopwatch with voice cues. So I built the alternative — same training engine, for less.
Built around how runners actually train, not how subscription apps want you to. Every feature is here because it earns its place. (The plan engine has its own section above — these are the rest.)
No tracking pixels. No analytics SDKs. No leaderboard you didn't ask for. Your training data lives on your phone — not in our database, because we don't have one.
Pace targets, step-by-step structure, voice cues during your run. Directive. No filler. Like a coach who actually shows up.
Sick, hurt, travel week — pause your plan for 1–14 days. The plan picks up where you left off, no manual rescheduling.
Designed iPhone-native, Apple Watch first. But Apple Health sync covers Garmin, Coros, Polar — anything that talks to Health. Use your watch. We don't care which one.
Pick a goal. We build the plan. Couch to 5K all the way to ultramarathon — same engine, same subscription, same indie developer keeping it sharp.
Two weeks of your real runs become your VO2 Max — then every pace in the plan follows it, and keeps following it as your runs come in.
Every run mints a deck — the stats hero, your route on the dark map, your splits smoothed into a signature, the season ledger. Medals ride the cards they were earned on.
Post the receipts or keep them. Either way, they're yours — cut from your run, not from a template.
Milestones minted in metal — the first hundred miles banked, the perfect week kept, your calibration number, race day survived. No confetti physics. Hardware. The ones you haven't earned yet stay in the case, ghosted, waiting.
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—Strava acquired Runna in April 2025. Different apps, separate subscriptions. Garmin gates everything behind their watches. Nike Run Club is free — for now. We're showing the math, the gaps, and what each option costs you beyond just dollars. Decide for yourself.
"Other coaching apps" reflects dedicated coaching tiers like Runna and TrainingPeaks.
"Free trackers" includes Nike Run Club and Strava — trackers, not coaches, even on their paid tiers.
Pricing reflects category figures as of June 2026. Subject to change at the providers' discretion.
Onboarding takes about 2 minutes. We don't ask you to create an account with us — there's no account to create, because we don't have a user database. Open the app, tell it your goal, run.
5K, marathon, ultra, or just "I want to run more." Pick a race date or skip it. We build the plan.
Optional but recommended. Sync runs from your Apple Watch, Garmin, Coros, Polar — anything that talks to Apple Health. Runs flow in to adapt the plan; completed workouts flow back. Nothing sent to a server.
Today's workout is on the home screen. Pace targets, voice cues, structure — all handled. You just run.
The plan adapts. VO2 Max climbs. Race day comes around and you're ready. No social-feed validation required.
Three real differences:
Architecture. Solo developer. Not VC-backed, not acquired, not a shoe company's marketing arm. The whole app fits in one person's head.
Philosophy. No data harvesting, no upsells, no premium tier, no social feed obligation. Your training data lives on your phone — there's literally no server collecting it.
Plan quality. Adaptive plans tuned to your fitness, not generic ones. Nike Run Club's free plans don't adapt to what you actually run — they're static templates. Why Not's recalibrate as you log runs, tuned to your VDOT and the runs you actually complete.
Price. $9.99/month or $79.99/year — that's the price of Strava, except Strava's a tracker and this is a coach. About a third less than Runna. If price isn't your concern, the first three reasons matter more.
The app keeps working. Plans are generated locally, your data is on your phone, and there's no server that has to stay online for it to function. If I disappear, your training history stays yours — you'd just stop getting updates. I have no plans to disappear, but the architecture means you're not at risk if I do.
You get a full 7-day free trial when you sign up. Pick monthly ($9.99) or annual ($79.99) at signup, and Apple won't charge you until day 7. Cancel any time during the trial in your iPhone's Settings → Subscriptions → Why Not, and you pay nothing.
Yes. Cancel through your iPhone's Settings → your name → Subscriptions → Why Not → Cancel Subscription. You keep full access until the end of your current paid period. Your training history stays on your phone in read-only mode after that.
Because the moment you raise venture capital, the entire product roadmap reshapes around growth. Features get added because they justify a Series A, not because runners need them. Prices creep up because investors need ARR growth. I'd rather build the small profitable indie running app than the next subscription monster. If you've watched what happened to a few of the apps in this category over the past five years, you know what I mean.
No. The app works fine with just your phone — pace via GPS, voice cues via headphones, structure on screen. A watch makes it nicer, especially Apple Watch since the app is iPhone-native and Apple Watch ships at v1 launch. Garmin and Coros work via Apple Health sync. We don't care which watch you wear.
iOS first. Android is on the roadmap. The plan engine is already cross-platform under the hood (React Native), so the wait is App Store approval and Play Store setup, not engineering.
If we ever change pricing, Apple requires us to notify existing subscribers in advance and give you the option to cancel before the new price takes effect. There's no investor pressuring me to bump prices to hit a number — so the honest answer is: not anytime soon.
Both. Plans cover Couch-to-5K all the way through ultramarathon. Same engine. Sarah training for her first half and Marcus chasing a sub-3 marathon both use the same app — the plan just looks different for each of them.
