Strong app review: free vs PRO, and is it worth it
Published November 12, 2026
Strong is a polished, no-distraction workout log, rated 4.9 from over 100,000 ratings in the US App Store, with an Apple Watch app that logs with or without your iPhone. It records your weights but doesn't set them; RIRLift does that free, with 4 routines to Strong's 3, on iPhone and Apple Watch, and imports your Strong history. Strong free saves unlimited workouts but only 3 routines, and PRO, at $4.99/month, $29.99/year or $99.99 once, is worth it if you plan your own progression and want unlimited routines and all charts.
Free on iPhone and Apple Watch · No account · Coming to Android: join the waitlist
Strong against its closest alternatives
| Feature | Strong | Hevy | RIRLift |
|---|---|---|---|
| Best for | A quiet log for a plan you run yourself | Logging your own routines, with a feed | Weights set from your last set |
| Paid tier, US | $4.99/month, $29.99/year or $99.99 once | $2.99/month, $23.99/year or $74.99 once (better here) | $9.99/month or $79.99/year |
| Free routines | 3 | 4 | 4 active routines, 2 saved programs |
| Free charts | All charts with PRO | Last 3 months | Weekly muscle map; all-time in Pro |
| Next weight | You add it | Your last numbers; Trainer suggests in Pro | Worked out from load, reps and RIR, free (better here) |
| Plate calculator | PRO | Free | Free on iPhone; custom plates and the Watch in Pro |
| Watch | Apple Watch, with or without the iPhone | Apple Watch and Wear OS | Apple Watch, with the next weight |
| Platforms | iPhone, Android | iPhone, Android, web (better here) | iPhone and Apple Watch |
| Import | CSV export | Strong CSV | Hevy, Strong and FitNotes CSV (better here) |
Strong is the calmer log with the most self-sufficient Watch app; Hevy gives more for less. If you want the weight decided, neither does it on free and RIRLift does.
What decides whether Strong, free or PRO, is right for you
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Logging: simple and fast
Routines, supersets, warm-up, failure and drop sets, an automatic rest timer, notes and progress photos. Strong's own pitch is no distractions, and it delivers: no feed, no coaching layer.
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Free: unlimited workouts, 3 routines
Three custom routines covers a 3-day plan and nothing more. Strong says you'll always be able to track workouts on free.
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PRO: routines, charts and calculators
Unlimited routines, all charts, body part measurements, the plate and warm-up calculators, icons and themes. $4.99/month, $29.99/year, or a one-time Strong PRO Forever at $99.99 in the US.
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Who picks the weight
Strong is optimized for a progressive barbell routine like StrongLifts 5x5, and you add the weight. RIRLift works out every set from the load, reps and reps in reserve you just logged, and it's free. How it decides.
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Platforms and your data
Strong runs on iPhone, Android and Apple Watch and exports everything as CSV.
Strong, PRO or a switch, in two real situations
Moving from 3 days to 4, on Strong free
Eight months of a 3-day full-body plan in Strong, the three free routines used up. You want an upper/lower split on four days, and the bar has sat at the same weights since spring.
| App | What it does here | For this lifter |
|---|---|---|
| Strong free | Keeps every workout, but a fourth routine needs PRO, and so do the charts that would show the stall. | Stops working the day you add a fourth day. |
| Strong PRO | $29.99 a year or $99.99 once: unlimited routines, all charts, plate and warm-up calculators. | Right if you like Strong and will plan the next weights yourself. |
| RIRLift | Free: four routines for the split, a suggested weight on every set, and your Strong history imported. | Fits if the stall is the real problem. iPhone and Watch only, no RPE. |
PRO fixes the routine count. Only one of these fixes the weights that stopped moving.
Heavy day, first week after Strong
A barbell lifter who ran Strong for years. Trap bar deadlift for 4–6 and incline bench for 6–10, both with 2 reps left as the target. This is what RIRLift does with the sets.
| Exercise | You logged | Next session | Why |
|---|---|---|---|
| Trap Bar Deadlift | 275 lb, 6 / 6 / 6 reps, 2 left | 280 lb × 4 | Every set at the top of 4–6: one 5 lb step, reps back to 4. |
| Incline Barbell Bench Press | Set 1: 135 lb × 8, nothing left | Set 2: 135 lb × 8 | You got the 8 reps but went closer to failure than planned. You did what was asked, so it holds. |
| Incline Barbell Bench Press | Set 2: 135 lb × 4, nothing left | Set 3: 130 lb × 8 | Below the 6–10 range, so it comes down, by at most 7% a set: 4 reps to failure against a planned 10 gives 135 × 33 ÷ 39 ≈ 114 lb, held to 135 × 0.93 ≈ 126 lb, loaded as 130 lb. |
In Strong you'd have added 5 lb to the deadlift by hand and guessed set 3. Here both came from your sets.
Plans for a lifter coming from Strong
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The best workout routine for men, for your week
Stronger squat, bench press and deadlift
Squat, bench and deadlift first, the way most Strong users already train.
3× a week · 49 sets a week · ~55 min
Add to RIRLiftSee the planAdd to RIRLift
Scan with your iPhone camera to add this plan.
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The best workout routine for the days you can train
4 days a week: upper/lower
The four-day split from the example, inside RIRLift's 4 free routines.
4× a week · 68 sets a week · ~40 min
Add to RIRLiftSee the planAdd to RIRLift
Scan with your iPhone camera to add this plan.
Make it fit you
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Export from Strong, import in RIRLift
Strong exports all your data as CSV. Import that file in RIRLift and your weights are worked out from it, marked From history.
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RPE becomes RIR
If you logged RPE in Strong: RPE 8 is 2 left, RPE 9 is 1. Set the targets once per exercise.
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Ask first, if you like deciding
With Ask first, next session's weights wait on the recap until you confirm them, close to how you worked in Strong.
When a different app fits better
- You're on Android. Strong or Hevy. RIRLift is iPhone and Apple Watch only; Android is a waitlist.
- You'd rather pay once. Strong PRO Forever at $99.99, or Hevy's $74.99 lifetime.
- You log RPE and want to keep it. Strong. RIRLift logs reps in reserve.
Questions
Can I use the Strong app for free?
Yes. Free saves unlimited workouts but only 3 custom routines, and PRO unlocks all charts. Strong says you'll always be able to track workouts on free.
How much does the Strong app cost?
Strong PRO is $4.99/month or $29.99/year in the US, with a one-time Strong PRO Forever at $99.99.
Is Strong still the best workout app?
For a fast, private log with a Watch app that runs without the iPhone, it's still among the best. Hevy gives more free and costs less, and neither sets your weights on free.
Does Strong suggest weights?
No. It records your sets and shows progression charts with PRO. RIRLift works out the next weight from each set, free.
Can I move my Strong history to RIRLift?
Yes. Export a CSV from Strong and import it in RIRLift on the iPhone.
Read next
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Hevy vs Strong: which workout log to pick
The head-to-head most Strong users weigh.
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The best Strong app alternatives, ranked
Ranked for lifters ready to switch.
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The Strong app on Apple Watch, and an option that sets the weight
The Watch app in detail.
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How RIRLift picks your next weight
Where the 280 and the 130 came from.
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Best workout log app
More logs, side by side.
More ways lifters use RIRLift
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The Strong app on Apple Watch, and an option that sets the weight
Strong logs on the Watch with or without your iPhone. RIRLift also sets the next weight on your wrist.
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Hevy vs Strong: which workout log to pick
Hevy gives more free and costs less; Strong is the quieter log. Row by row, and where RIRLift fits.
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The best Strong app alternatives, ranked
Six apps ranked for lifters leaving Strong: more free routines, weights set for you, Strong history kept.
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Hevy app review: free vs Pro, and who should pay
What Hevy's free tier keeps, what Pro adds for $23.99 a year, and when another app fits better.