Iron Progression vs. Strong
From recording sets
to setting the next target.
Strong includes workout logging, history, charts, and RPE. Consider Iron Progression if you want to bring rep ranges, effort targets, and next-session progression rules into the same local training record.
Android available now. Get notified when iOS launches.
Incline DB Press
Set 1 of 4
Weight
70 lb
Reps
9
RIR
1
The difference is the next-session workflow.
If your priority is recording workouts and reviewing exercise history, Strong is a capable option. You may already have a progression system you are happy to manage yourself.
Iron Progression brings your last session, rep range, effort target, and progression history into the prescription. The focus is on explaining whether to add reps, add load, or repeat and adjust the work.
Logging and progression, side by side.
| Capability | Strong | Iron Progression |
|---|---|---|
| Workout logging | Sets, reps, load, and exercise history | Sets, reps, load, targets, and exercise history |
| Effort context | RPE effort ratings | Optional RIR tracking on supported rep-based work |
| Strength tracking | Best sets, 1RM, and charts | Eligible single-rep records and estimated 1RM trends |
| Rest | Custom timers | Built-in rest timers and program rest settings |
| Data workflow | Strong Cloud and data export | Local records and manual JSON backup/restore |
| Phone availability | Android and iOS | Android available; iOS coming soon |
Scroll horizontally to compare both apps.
Source: Strong's official product page, reviewed October 16, 2026. Its feature list covers the product family; availability can vary by platform and tier. Confirm the effort controls, charts, and cloud options on the version you plan to use.
When is switching worth the work?
If Strong already gives you the record you need and you manage progression comfortably, there may be no reason to move. Keeping a familiar workflow and a continuous history has value.
To evaluate Iron Progression, enter one routine, log a normal session, and inspect its next targets. Compare the progression workflow rather than assuming that two apps with effort fields make the same decisions.
Keep your Strong export and existing history. Iron Progression's backup tools restore its own compatible JSON backups; they do not directly import Strong exports.
Your next session starts here
Want progression guidance alongside your log?
Available on Android. iOS coming soon.
On iPhone? Get notified when iOS arrives.