Both give you a training plan. The difference is what happens when the plan stops fitting your week, and that's the part that actually decides your race day.
An app generates a plan from your inputs (goal time, race date, current mileage) and adjusts it based on what you log. It's fast, cheap, and consistent. What it can't do is ask why a run felt terrible, or tell the difference between "tired from training" and "something's actually wrong." It reacts to data. It doesn't know you.
A coach builds your plan the same way an app does, from your goal and your current fitness, but adjusts it based on judgment: a bad week at work, an old injury flaring up, a session that felt off for reasons that don't show up in a pace log. RunLetters Half Marathon Coaching adds live group sessions and direct messaging on top of that, so the adjustment isn't just a changed number in an app, it's a conversation.
| You should probably use an app if… | You should probably get a coach if… |
|---|---|
| You've run a few half marathons and know your body's warning signs | You've hit a wall on race day before and don't know exactly why |
| Your life is fairly predictable week to week | Your schedule changes often and a fixed plan keeps breaking |
| You're comfortable adjusting your own training | You want someone else accountable for the plan working |
| Budget is the deciding factor | Getting it right this time matters more than saving money |
An app is enough if you're experienced, injury-free, and can adjust your own training when life gets in the way. A coach is worth it if you've hit a wall you couldn't explain, you're new enough that you don't know what a bad sign looks like, or you want someone accountable for why your plan changed, not just an algorithm reacting to logged data.
A coach asks why a session felt hard and changes the plan based on judgment: fatigue, life stress, an old injury flaring up, things that don't show up cleanly in logged data. An app can only react to the numbers you give it. A coach also gives you someone to actually talk to when a plan stops making sense.
Yes, generally. A training app is usually a flat, low monthly fee for a generated plan. A coach costs more because you're paying for a person's judgment and time, not just software. RunLetters Half Marathon Coaching includes live group sessions and direct coach access on top of the plan itself, which is why it costs more than an app-only subscription.
RunLetters Half Marathon Coaching pairs you with a real coach (not an app) who builds your training around your goal, adjusts the plan as your training actually goes, and is in your corner from week one to the start line. Start with a 7-day free trial.
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