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Best Strength Training App According to Reddit Lifters (2026)
People add the word reddit to "best strength training app" because they want answers from lifters in a thread, not a marketing page. Here is an honest summary of what the big lifting subreddits actually recommend, the criteria those threads keep coming back to, and where our own app fits. We build Ægir Iron (also written Aegir Iron), so read the last section knowing exactly who wrote it.
What the big subreddits actually recommend
Ask for a tracker in r/Fitness, r/weightroom, or r/homegym and the same names dominate the replies:
- Strong and Hevy for fast, polished set logging. The default answers for years, and for good reason.
- FitNotes for Android users who want a free, minimal logger with no account.
- Boostcamp for running popular free templates like 5/3/1, GZCLP, or nSuns without building them yourself.
- Liftosaur in the more technical threads: free, open source, and scriptable, beloved by lifters who want to program custom progressions.
- A spreadsheet. Still the power-user answer. Every serious template exists as a sheet, and nothing is more flexible.
That is the honest landscape. Loggers are excellent and plentiful. The gap the threads keep circling is what happens after logging: progression, structure, and knowing whether your training load is going somewhere.
What the threads agree on
- Logging speed beats features. If entering a set is slower than a notebook, the app loses.
- Your program, not theirs. Lifters resent being funneled into an app's routine library when they came with their own plan.
- Progression should be automatic. Nobody wants to recalculate training maxes in their head between sets.
- No paywall creep. The most upvoted complaints are about loggers that moved history or basic features behind a subscription after the fact.
- Data export is non-negotiable. CSV export comes up in nearly every thread.
| Option | Why Reddit recommends it | The trade-off threads mention |
|---|---|---|
| Strong | Fast, polished logging | Programming and periodization are manual; full features are paid |
| Hevy | Free logging with a social feed | A logger at heart, not a programming engine |
| FitNotes | Free, minimal, no account | Android only; logging is all it does |
| Boostcamp | Popular templates ready to run | You follow someone else's template rather than building your own block |
| Liftosaur | Free, open source, fully scriptable | A learning curve; you are effectively writing your program in code |
| Spreadsheet | Total control, free | All manual: no logging flow, no analytics, no sync |
| Ægir Iron | Periodization, RPE and percentage programming, auto progression, and load analytics in one, free for individuals | Newer, so you will find fewer threads about it (yet) |
Characterizations reflect public information and common thread sentiment at the time of writing. Every app here is good at what it is built for.
Where Ægir Iron fits, from the people who build it
Full disclosure: this page is written by Ægir Labs, the maker of Ægir Iron. We are not a neutral thread, so here is the pitch in the terms the threads actually use.
Ægir Iron is the spreadsheet and the logger merged. Training lives in real cycles and blocks, main lifts are prescribed by RPE or as a percentage of your training max (percentage work reprices live when the max changes), and logging an AMRAP top set feeds an automatic training-max proposal at the end of each cycle. On top of the log you get load monitoring (uncoupled ACWR with an EWMA smoothed companion), relative intensity zones as a percentage of 1RM, make rate from logged misses, a per-muscle recovery Body Map, PR tracking, and Excel export of your full history. There are 38 free prebuilt programs plus a wizard that builds one around your equipment and schedule. Individual lifters get the entire platform free, with no time limit and no card. Coaches who run a roster are the only ones who pay.
And because people trust threads more than marketing, we agree: ask about us in r/Fitness, or email us and we answer questions ourselves. If Ægir Iron is not the right fit, one of the apps above probably is.