StrengthLog vs Hevy
Published November 12, 2026
Pick StrengthLog if you'll stay free (unlimited workouts and custom exercises, free routines and programs with linear progression, against Hevy's 4 routines and 7 custom exercises), and Hevy if you'll pay ($23.99/year or $74.99 once in the US, against $109.00/year for StrengthLog Premium). If you train by reps in reserve, RIRLift beats both: it logs RIR free, which StrengthLog keeps for Premium and Hevy doesn't log, and sets your next weight from it on iPhone and Apple Watch.
Free on iPhone and Apple Watch · No account · Coming to Android: join the waitlist
StrengthLog vs Hevy, with RIRLift as the third option
| Feature | StrengthLog | Hevy | RIRLift |
|---|---|---|---|
| Best for | Staying free with programs | Paying little for a full log, with a feed | Weights set from your last set |
| Paid tier, US | $16.90/month or $109.00/year | $2.99/month, $23.99/year or $74.99 once (better here) | $9.99/month or $79.99/year |
| Free tier | Unlimited workouts and custom exercises (better here) | 4 routines, 7 custom exercises | 4 active routines, a weight for every set |
| Free routines | Routines and programs, linear progression | 4 | 4 active routines, 2 saved programs |
| Free stats | PRs, volume and history; advanced stats in Premium | Last 3 months | Weekly muscle map; all-time in Pro |
| RIR logging | Premium | RPE only | Free (better here) |
| Next weight | Linear steps you set; double progression in Premium | Your last numbers; Trainer suggests in Pro | Worked out from load, reps and RIR, free (better here) |
| Platforms | iPhone, Android, Apple Watch, Wear OS | iPhone, Android, web, Apple Watch, Wear OS (better here) | iPhone and Apple Watch |
| Social | Friends feed, challenges, Strength Levels | Feed, follows, comments (better here) | Friends, challenges, weekly board |
StrengthLog is the better free app, Hevy the better buy. For RIR training with the weights worked out for you, RIRLift does it free.
StrengthLog and Hevy, on the things that decide it
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Free tier: StrengthLog
StrengthLog free logs unlimited workouts, keeps unlimited custom exercises, and lets you build routines and programs with linear progression. Hevy free keeps 4 routines, 7 custom exercises and 3 months of stats.
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Paid tier: Hevy, by a lot
Hevy Pro is $2.99/month, $23.99/year or $74.99 once. StrengthLog Premium is $16.90/month, $37.90 for 3 months or $109.00/year in the US, with no lifetime.
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Effort logging: Hevy on free
Hevy logs RPE free. StrengthLog puts RPE, reps in reserve and % of 1RM in Premium. RIRLift logs reps in reserve free, and RPE targets convert (RPE 8 is 2 left).
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Progression: StrengthLog on free
StrengthLog's free routines can add weight on a linear schedule; double and triple progression are Premium. Hevy's suggestions come from Hevy Trainer, in Pro. RIRLift sets each weight from the set you just logged, free. How it decides.
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Platforms and social
Both run on iPhone, Android, Apple Watch and Wear OS, with friends, a feed and challenges. Hevy adds a web app and comments on workouts.
StrengthLog, Hevy or RIRLift, in two real situations
A coach's spreadsheet written in reps in reserve
An intermediate lifter handed a hypertrophy block where every set reads like "3 × 10, 2 RIR". Free is the budget, and they want the log to understand the target.
| App | What it does here | For this lifter |
|---|---|---|
| StrengthLog free | Logs the sets and runs linear progression, but RIR logging and double progression are Premium, at $109.00 a year. | Works as a log; the RIR column waits for Premium. |
| Hevy free | Logs RPE, so 2 RIR goes in as RPE 8. You decide each next weight. | Fine if you convert by hand. |
| RIRLift | Logs reps in reserve free and sets the next weight from it, on iPhone or Apple Watch. | Fits exactly. iPhone only. |
Only one of the three reads "2 RIR" as written without a subscription.
Pull day, curl stuck for three sessions
Chest-supported row for 8–10 and machine preacher curl for 8–12, both at 2 reps left. The curl has sat at 60 lb for three sessions without a new rep, which a log would just keep recording.
| Exercise | You logged | Next session | Why |
|---|---|---|---|
| Chest-Supported Row | 90 lb, 10 / 10 / 9 reps, 2 left | 90 lb × 10 | Not every set reached 10, so it holds; the weakest set hit its target of 9, so it aims for 10. |
| Machine Preacher Curl | 60 lb × 10 / 9 / 9, third session with no new rep | Offered: 50 lb × 8 | Three sessions without a new rep, so the recap suggests a step back about 10% lighter: 60 × 0.9 = 54 lb, rounded down to the stack's 50 lb, rep target back to 8. |
You choose Deload or Not yet on the recap. In StrengthLog or Hevy you'd have to notice the stall yourself.
Plans for a lifter weighing StrengthLog and Hevy
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The best workout plan for muscle gain, for where you are now
Past a year of lifting, gains have stalled
For the intermediate in the example whose lifts stopped moving.
4× a week · 76 sets a week · ~50 min
Add to RIRLiftSee the planAdd to RIRLift
Scan with your iPhone camera to add this plan.
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The best workout for biceps, matched to your setup
Arms lag despite heavy rows and chin-ups
Heavy rows and chin-ups, with arms that lag, like the stuck curl.
2× a week · 18 sets a week · ~20 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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Coming from Hevy: import the CSV
Export your Hevy workouts as CSV and import them in RIRLift, so your first weights come from your history.
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Coming from StrengthLog: start with Estimate
RIRLift doesn't import StrengthLog. Lifts you haven't logged here start from a light Estimate, and one max-reps set turns it into a measurement.
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Keep Step back when stuck on
It's what offered the 50 lb curl. Turn it off if you'd rather push through a stall.
When a different app fits better
- You'll never pay and want programs. StrengthLog.
- You'll pay and want the lowest price, or a lifetime. Hevy Pro, $23.99 a year or $74.99 once.
- You're on Android or Wear OS. StrengthLog or Hevy. RIRLift is iPhone and Apple Watch only.
- You log RPE. Hevy, free. RIRLift logs reps in reserve.
Questions
Is StrengthLog better than Hevy?
On free, yes: unlimited custom exercises and free programs, where Hevy caps routines and custom exercises. Paid, Hevy is far cheaper and adds a web app.
Is StrengthLog really free?
The core is: unlimited workouts, custom exercises, routines with linear progression, a rest timer and plate calculator. Premium adds RPE and RIR logging, double progression, the full program library and advanced stats.
Is Hevy Pro worth it?
At $23.99 a year or $74.99 once in the US, yes, if you need more than 4 routines or 7 custom exercises, or want Hevy Trainer to suggest weights.
Which app logs reps in reserve for free?
RIRLift. StrengthLog keeps RIR for Premium, and Hevy logs RPE.
Read next
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Hevy app review: free vs Pro, and who should pay
Free vs Pro in detail.
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The best Hevy alternatives, ranked
StrengthLog and five more, ranked.
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The RPE and RIR app where effort sets the weight
Training by reps in reserve, set up.
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RPE vs RIR
Converting one to the other.
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How RIRLift picks your next weight
Where the 50 lb step back came from.
More ways lifters use RIRLift
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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.
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The best Hevy alternatives, ranked
Seven apps ranked for lifters leaving Hevy: free weights set for you, no routine cap, your history kept.
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The RPE and RIR app where effort sets the weight
Log reps in reserve on every set, and your effort decides the next set's weight and the next jump.
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Lyfta vs Hevy
Lyfta drops Hevy's routine cap; Hevy has the bigger feed and a lifetime Pro. Row by row.