Comparison · iPhone
byrna vs Strong
Strong is one of the best workout logbooks ever made, and its free tier is genuinely generous. But a logbook records the plan — it doesn't write one. byrna decides what you're doing, adapts it when you're run down, and opens the day with Scripture.
Side by side
Strong details below are drawn from Strong's own public site, checked 29 August 2026. Features and pricing change — verify on their site and the App Store before deciding.
| byrna | Strong | |
|---|---|---|
| Daily Bible verse & devotional | Yes — free, never paywalled | No faith content |
| Writes your program for you | Yes — from your goals, experience, schedule & injuries | No — you bring the program |
| Workout logging & history | Yes | Yes — best-in-class, its whole focus |
| Conversational AI coach | Yes — edits the real plan on request | No AI coaching |
| Auto-deload when you're run down | Yes — reads sleep & recent sessions | No — you decide |
| Muscle heatmap | Yes — free | Yes |
| One score for your progress | Byrna Score, 300–850 | Charts, not a single score |
| Food logging by photo or text | Yes (Premium) | Not a nutrition app |
| Data export & power-user tooling | Apple Health sleep (read-only) | Stronger — CSV export, Siri Shortcuts, RPE, integrations |
| Free tier | Yes | Yes — free accounts, with a paid PRO tier |
The honest version
If you already have a program — from a coach, a book, or years of knowing what you're doing — and you just want the cleanest possible way to record it, Strong is excellent and we'd tell you to use it. byrna is for the other person: the one who opens the app and wants to be told what today is, and wants that answer to change when their sleep, their shoulder, or their week changes.
What you get that a logbook can't give you
- A plan on day one. Built from your goals, experience, schedule, and injuries — no templates, no spreadsheet-building.
- A coach that edits it. Tell it what's going on in plain English; exercises get swapped, days move, the week goes lighter or harder.
- A daily devotional. A verse from the World English Bible and an optional guided study — context, meaning, reflection, prayer. Free for everyone.
- One number. The Byrna Score reads your last 28 days — consistency, goal progress, sleep, and fuel — and tells you whether it actually went well.
Which one should you pick?
Pick Strong if…
You already know what you're doing, you want the fastest, cleanest logging experience with deep export and power-user tooling, and you have no need for programming, coaching, or faith content.
Pick byrna if…
You want the programming decided for you and kept honest week to week, a coach you can talk to, macros from a photo, and Scripture as part of the same daily habit.
Train your body, strengthen your faith.
Free to download. Premium starts with a 1-week free trial.
Download on the App StoreStrong is a trademark of its owner and is not affiliated with, and does not endorse, byrna. Comparison compiled 29 August 2026 from strong.app. Apps change often — check their current site and App Store listing before you decide. Spotted something out of date? Tell us at buckaiden40@gmail.com and we'll correct it.