The 30-second version
People searching for a pay-once running app often land on both of these, so it helps to be clear up front. They are not really competitors. They overlap on one thing (you pay once and you keep the app) and diverge on everything else.
WorkOutDoors is a one-time purchase app for iPhone and Apple Watch. It costs around $8 (check the App Store for the current price). What it does better than almost anything else is put data on your wrist exactly the way you want it, plus offline vector maps with route navigation. The watch screens are deeply configurable, and you can follow a route on a real map mid-run without a phone. It is a tracker and a navigator. It does not write you a training plan.
Smart Runner is also pay-once (lifetime) or annual, with a 14-day trial. It is built around coaching. It generates an adaptive 5K-to-marathon plan, recalculates it after each run, sets your VDOT pace zones, and tracks training load with ATL/CTL/TSB. The methodology comes from Pfitzinger, Daniels, and Canova. It plays structured workouts on the watch and analyzes each run afterward.
So the honest framing: if you want a screen that shows your metrics your way and a map to navigate by, WorkOutDoors is excellent. If you want something to decide what you should run and at what pace, that is Smart Runner.
Side-by-side comparison
| Feature | Smart Runner | WorkOutDoors |
|---|---|---|
| Price model | Lifetime purchase or annual plan, 14-day trial | One-time purchase (around $8, check the App Store) |
| What it's built for | Adaptive coaching and plan generation | Customizable tracking and on-watch navigation |
| Adaptive training plan | 5K to marathon, recalculated after each run | No, you bring your own plan |
| VDOT pace zones | Calculated from your race results | No, you set targets manually if at all |
| Training-load tracking | ATL/CTL/TSB and TRIMP, visible | No |
| Watch data-screen customization | Structured, fixed layouts during workouts | Extensive, this is its signature strength |
| Offline maps / navigation | No | Yes, offline vector maps with route following |
| Structured workout playback | Yes, plays the plan's intervals on the watch | You can build segments, but no coached plan behind them |
| Learning curve | Low, the plan is set up for you | Higher, configuring screens and maps takes time |
| Shoe mileage tracking | Built in | No |
Where WorkOutDoors is the better pick
WorkOutDoors is well loved for good reason. If any of these describe you, it is probably the app you want:
- You want total control over your watch screens. Few apps let you lay out fields, colors, graphs, and gauges as precisely. If you have an exact set of metrics you stare at mid-run, WorkOutDoors lets you build it.
- You need maps and navigation on the wrist. Offline vector maps and route following are the headline feature. For exploring new areas, point-to-point routes, or anywhere cell coverage is thin, this is hard to beat.
- You run trails or ultras and live by your display. The map plus heavily customized data fields suit long days where what you see on the watch matters more than what a plan tells you to do.
- You like to tinker. The configuration depth is part of the appeal. If setting up the perfect screen is satisfying rather than a chore, you will get a lot out of it.
Where Smart Runner is the better pick
Smart Runner answers a different question. Not "how do I see my data," but "what should I run today and how fast." If that is what you are after:
- You want a plan, not just a display. Smart Runner builds the training plan and keeps it current. WorkOutDoors assumes you already know what your session is. If you do not, Smart Runner fills that gap.
- You want load managed for you. ATL/CTL/TSB and TRIMP track fatigue and fitness, and the plan adapts so you are not guessing whether to push or back off. WorkOutDoors records the run but does not reason about your training stress.
- You want your paces worked out. Smart Runner derives VDOT zones from your race results and assigns easy, threshold, interval, and long-run paces. With WorkOutDoors you would set those targets yourself.
Like WorkOutDoors, Smart Runner is pay-once and keeps your data on your phone with no account. The difference is the coaching layer on top.
Can you use both?
Yes, and some runners do. Let Smart Runner own the plan: it tells you today's session, the paces, and how the week fits your training load. Let WorkOutDoors own the display and navigation on a run where you want a custom screen or a map to follow. They do not conflict, because one decides what to run and the other decides how the run looks on your wrist. Paying once for each is still cheaper over time than a single running subscription.
Which to choose, simply
- Choose WorkOutDoors if: you already know your training and you want the most customizable watch display, plus offline maps and navigation.
- Choose Smart Runner if: you want an app that builds and adapts your plan, sets your paces, and manages your training load, while still being pay-once.
Both respect that you should pay once and keep what you bought. They just point at different parts of the problem. If you need a coach, start with Smart Runner. The 14-day trial covers a full training week, so you can see the plan adapt before deciding.
Try Smart Runner free for 14 days
Onboarding takes 5 minutes. The plan is on your wrist for the next run. Lifetime option available at checkout.