What is the best strength training app in 2026?
Arvo is the best strength training app for lifters who want AI-driven barbell progression with %1RM and PR tracking, with a Free plan available and Pro at €4/month. Strong and Hevy suit manual loggers, Juggernaut AI suits competitive powerlifters at $35/month, and Fitbod suits general fitness at $15.99/month.
TL;DR
- •Best AI progression: Arvo — set-by-set decisions, Free plan available, Pro at €4/month
- •Best for competitive powerlifting: Juggernaut AI at $35/month — block periodization and peaking
- •Best manual loggers: Strong at $4.99/month and Hevy with a free tier — no progression engine
- •5 apps compared: Arvo, Strong, Hevy, Juggernaut AI, Fitbod
Best Strength Training App in 2026
Arvo, Strong, Hevy, Juggernaut AI, and Fitbod compared on barbell progression, %1RM and PR tracking, rest logic, and overload decisions.
Quick Comparison
Side-by-side feature comparison of all 5 apps
| Feature | Arvo | Strong | Hevy | Juggernaut | Fitbod |
|---|---|---|---|---|---|
| Progression logic | Set-by-set AI | Manual | Manual | Block AI | Workout-level |
| %1RM tracking | Yes | Estimates | Estimates | RPE-based | Basic |
| PR tracking | Yes + plateaus | Yes | Yes | Yes | Basic |
| Rest timer logic | Goal-adjusted | Fixed timer | Fixed timer | Block-based | Fixed timer |
| Strength methodologies | 5 | 0 | 0 | 1 | 0 |
| Offline logging | Partial | Full | Full | Limited | Yes |
| Price/month | Free / €4 | $4.99 | Free / $2.99 | $35 | $15.99 |
| Best for | AI progression | Manual logging | Social logging | Powerlifting | General fitness |
Arvo is the Editor's Choice for strength progression — Free plan available, Pro at €4/month.
Try Arvo freeDetailed Reviews
Honest breakdown of each strength training app
Arvo
Editor's ChoiceBest for AI-Driven Strength Progression
Price: Free plan, Pro €4/month | Best for: Lifters who want progression decided set by set
Pros
- Set-by-set AI progression, RIR/RPE-aware
- PR tracking with plateau detection
- 5 methodologies (Kuba, Mentzer, FST-7, Y3T, Mountain Dog)
- Import history from Fitbod, Hevy, or Strong
- Free plan available, no credit card required
Cons
- -AI coaching needs an internet connection
- -No camera form-check
- -Strength-first, less cardio content
Strong
Best Minimalist Strength Logger
Price: $4.99/mo | Best for: Minimalists who run their own program
Pros
- Fast, reliable set logging
- Full history and PR charts
- Works offline in any gym
- Low price point
Cons
- -You decide every progression step
- -No %1RM-based programming
- -Minimal coaching or adaptation
Hevy
Best Free Logger with Community
Price: Free / $2.99/mo | Best for: Lifters who log socially and follow friends
Pros
- Generous free tier
- Strong community and workout sharing
- Clean volume and PR tracking
- Works offline
Cons
- -No real progression engine
- -No %1RM or overload logic
- -Programming stays manual
Juggernaut AI
Best for Competitive Powerlifting
Price: $35/mo | Best for: Competitive powerlifters preparing for meets
Pros
- Block periodization for SBD
- Meet peaking protocols
- RPE-based autoregulation
- Chad Wesley Smith methodology
Cons
- -Very expensive at $35/month
- -Powerlifting-only focus
- -Overkill for general strength
- -Needs lifting experience
Fitbod
Best for General Fitness Variety
Price: $15.99/mo | Best for: General fitness with varied equipment
Pros
- Large exercise and equipment database
- Clean, beginner-friendly interface
- Adapts to available equipment
- Good recovery tracking
Cons
- -Generic programming, no strength blocks
- -Weak %1RM and PR focus
- -Expensive for strength-specific training
How to Choose a Strength Training App
Six criteria that decide whether an app builds strength or just logs it
Progression logic
The app should tell you the next weight and reps, not just record the last set. Set-by-set or block-level decisions beat manual spreadsheets for consistent overload.
%1RM and PR tracking
Estimated maxes from submaximal sets and a PR history per lift show whether the program works. Plateau detection turns that history into action.
Rest and overload rules
Heavy compounds need longer rest than accessories, and load should rise only when RIR targets allow it. Fixed timers and blind jumps stall progress.
Barbell-first exercise base
Squat, bench, deadlift, press, and rows with sensible substitutions matter more than a catalog of 1,000 variations you never use.
Gym-floor usability
Fast logging between sets, readable plates math, and clear offline behavior decide whether the app survives a real session.
Price against coaching depth
A logger can cost little. Real progression logic costs more to build, so compare the monthly price against who actually decides your next set.
Why Arvo for Strength Training
AI coaching built around progression, not just logging
- 20 specialized AI agents handle planning, set-by-set progression, validation, and learning from your history
- 5 proven methodologies with scientific fidelity: Kuba Method, Mentzer HIT, FST-7, Y3T, and Mountain Dog Training
- RIR/RPE-aware progression with methodology-specific targets, plus volume landmarks (MEV/MAV/MRV)
- PR tracking with plateau detection and exercise rotation based on your history
- Import training history from Fitbod, Hevy, or Strong, or bring any plan as PDF or photo
- Export your full training history in JSON or CSV at any time — your data stays yours
Honest limits
- -No camera form-check — technique review stays a human coach job
- -AI coaching and workout generation need an internet connection
Frequently Asked Questions
What is the best strength training app in 2026?
For lifters who want their progression decided for them, Arvo is the strongest pick: set-by-set AI coaching with RIR/RPE awareness, PR tracking, and methodology-based programming. A Free plan is available and Pro is €4/month. Manual loggers often prefer Strong ($4.99/mo) or Hevy (free tier), while competitive powerlifters pick Juggernaut AI ($35/mo).
Which app is best for barbell progression and %1RM tracking?
Arvo and Juggernaut AI handle progression best. Arvo adjusts weight and reps set by set from logged performance, RIR, fatigue, and exercise history. Juggernaut AI runs block periodization with RPE-based targets for the squat, bench, and deadlift. Strong and Hevy track numbers reliably but leave progression decisions to you.
Is Arvo good for powerlifting?
Arvo works well for powerbuilding, which is strength plus size, with rep ranges, rest periods, and progression adjusted to strength goals and PR tracking built in. Dedicated meet preparation with peaking blocks is Juggernaut AI territory. If you compete, Juggernaut AI justifies its $35/month price.
Can a strength app replace a coach for overload decisions?
For most lifters, yes. Progressive overload follows clear rules: add load or reps when performance and RIR targets allow it, hold or pull back when fatigue accumulates. Arvo applies those rules set by set. A human coach still adds value for technique work, since Arvo has no camera form-check, and for injury management.
What is the cheapest good strength training app?
Hevy has a generous free tier for logging. Arvo has a Free plan available with no credit card required, and Pro at €4/month adds methodology-aware programming, volume landmarks (MEV/MAV/MRV), and higher AI usage. Strong costs $4.99/month. Check the current price, currency, and billing period at checkout before you subscribe.
Do strength training apps work offline in the gym?
Logging apps like Strong and Hevy work offline without issues. Arvo is different: AI coaching and workout generation need an internet connection, so basement gyms with no signal are a real limitation. On mobile, some workout changes can be queued and synced later, depending on the platform and the action.
How does Arvo track PRs and progression over time?
Arvo logs every set with weight, reps, and RIR/RPE, keeps PR history per exercise, and uses that history for progression decisions and plateau detection. You own the data and can export the full training history in JSON or CSV at any time. You can also import existing history from Fitbod, Hevy, or Strong.
Questions?
The 6 questions everyone asks before trying a new training app.
Does it work offline in the gym?
Yes, completely. All AI decisions run locally with cached models. No internet required during workouts. Data syncs automatically when you're back online. Wake Lock keeps screen on, so you never have to unlock your phone between sets.
Can I add my own custom equipment?
What if I get injured or have pain?
How does the AI learn my preferences?
How is this different from an Excel spreadsheet?
Is my training data mine? Can I export it?
How much does it cost?
Still have questions? support@arvo.guru
