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Ægir Iron vs Strong
Updated
Strong has earned its reputation as one of the cleanest workout loggers ever made. The two apps are trying to do different jobs, so the right pick depends on how much structure you want around your logging.
What Strong does well
Strong is a minimalist logger built for speed, and it records sets, reps, and weight with almost no friction. Its Apple Watch app is among the best wearable lifting experiences available, letting you run a whole session from your wrist. The free tier covers basic logging with a limit on custom routines, and Strong Pro (around $4.99 per month or $29.99 per year at the time of writing) unlocks unlimited routines plus extras such as full charts, body measurements and calculators. If your goal is simply to record training quickly and review it later, Strong is excellent.
Where Ægir Iron differs
Ægir Iron is a full strength-sport platform rather than a pure logger. On top of logging, it gives you structured Cycle, Block, Week, Day periodization, meet planning and attempt selection for powerlifting, weightlifting, and strongman, and competition scoring across Wilks, DOTS, IPF GL, and Sinclair. It tracks training load (ACWR with an EWMA smoothed companion), relative intensity as a percentage of 1RM, and per-muscle recovery, supports strongman events, and connects coaches and athletes on a shared roster where programs sync in real time. Individual lifters use the entire platform for free. Its Apple Watch app is a read-only companion with watch-face complications, and the rest timer runs as a Live Activity on iPhone, so Strong remains the stronger pick for logging a whole session from the wrist.
| Feature | Ægir Iron | Strong |
|---|---|---|
| Fast, minimalist logging | Yes | Yes, its main strength |
| Apple Watch app | Read-only companion with complications; rest-timer Live Activity on iPhone | Yes, highly regarded |
| Periodization structure | Cycle / Block / Week / Day | Routines, not full periodization |
| Meet planning & scoring | Powerlifting, weightlifting, strongman | Not a focus |
| Load & recovery analytics | ACWR with an EWMA companion, relative intensity zones, make rate, Body Map | Progress charts, with more in Pro |
| Coach and athlete platform | Yes, athletes train free | Not a focus |
| Cost for individuals | Free, full platform | Free tier, Pro for full features |
Pricing and features reflect public information at the time of writing and may change. Check each app for the latest. Competitor details checked October 2026. Strong is a trademark of its respective owner. Ægir Iron is not affiliated with or endorsed by it.
Who should pick which
If you want the leanest possible logger and a top-tier watch experience, Strong is hard to beat. If you want that logging wrapped in real periodization, meet preparation, competition scoring, and the option to train under a coach, with full individual use free, Ægir Iron is built for the way strength athletes actually train.