Comparison

StrengthMark vs Five/Three/One

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

StrengthMark

This app helps strength athletes plan and track their weight training sessions. It offers features like an audible rest timer, a large exercise library, and personal record tracking to optimize gym time and achieve new personal bests.

Highlights
  • Audible rest timer
  • Extensive exercise library
  • Weight percentage planning
  • Custom workout templates
  • Giant and superset options
  • Personal record tracking
  • One rep max calculator
Features
Read full description

StrengthMark takes the guesswork out of planning and tracking your weight training. Be certain about hitting new personal records, loading the barbell, and how you spend your time in the gym. StrengthMark is made for lifters, whether it's powerlifting, strongman, olympic weighlifting, general strength training, or bodybuilding. Here is how StrengthMark helps you: • AUDIBLE REST TIMER - Starts when you complete a set to match your planned rest time. Use the full screen rest timer to watch the countdown while you're on the lifting platform. • HUGE EXERCISE SELECTION - Create your own or choose from over 900 different exercises for strength training, conditioning, mobility, powerlifting, strongman events, and Olympic lifts to build your workouts. • WEIGHT PERCENTAGES - Use sub-maximal percentages to plan and scale your workouts. • CUSTOM TEMPLATES - Create templates based on existing workouts to repeat and scale a series of workouts. • GIANT SETS - Use giant sets and supersets to add another dimension to your training. • PERSONAL RECORDS + HISTORY - Review your personal records using weights and reps of your favorite exercises like the deadlift, squat, bench press, snatch, clean and jerk, Atlas stone load, and more. For each personal record, you can view the full history of past PRs to get an idea of how you’ve been improving over time. • ONE REP MAX CALCULATOR - Use the one rep max calculator to establish a baseline for a training program.

About

Five/Three/One

This app helps weightlifters follow Jim Wendler's 5/3/1 program by automating cycle calculations, plate suggestions, and progress tracking. It eliminates the need for paper logs or spreadsheets, focusing on strength gains. Features include rest timers, workout scheduling, and Apple Health integration.

Highlights
  • 5/3/1 cycle planning and scheduling
  • Progress charting
  • Rest timer with notifications
  • Automatic plate calculation
  • Next cycle calculation based on performance
  • Home screen widget
  • Apple Health integration
Features
Read full description

The latest app for weightlifters doing Jim Wendler's 5/3/1 program! Five/Three/One is a focused and intuitive app helping you achieve what really matters: Getting Stronger. No more bringing a crumbled workout sheet to the gym, no more messing around spreadsheets to update your weights. From calculating your cycles, to telling you what plates to put on the bar, Five/Three/One does it all. Features include: - Planning and scheduling your whole 5/3/1 cycle - Charting your progress - Rest timer with notifications - Automatic plating calculation - Calculating your next cycle based on your performance - Notes associated with each sets - Home screen widget showing your your current and upcoming workouts - Lbs/kg support Optional paid features: - Customize which plates you're using and change your barbell's weight - Customize templates assistance work and define your own exercises - Beyond 5/3/1 templates and options, from Joker Sets to FSL, Pyramid and much more! Integrates with Apple Health : The app saves the workouts you've performed as well as the calories you've burnt in Apple Health. As weightlifters doing 5/3/1 ourselves, we made the app we wanted after being dissatisfied with what was out there. More than just a glorified spreadsheet, we designed it to be focused on each task at hand. With even more great features in the pipeline, we're stoked to release the app for others to use and can't wait to hear your feedback! We use it, we love it, and we're sure you will too.

Screenshots

StrengthMark4 screens
Five/Three/One4 screens

Verdict

The call

The clearest difference is in-app purchases: StrengthMark at none against Five/Three/One's 6. StrengthMark also leads on review sentiment (92% vs 78%). Five/Three/One's advantage is update cadence (every 2 weeks vs every 3 months) and ratings volume (1.2K vs 15). On price, rating, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Five/Three/One sells 6 one-off in-app purchases. StrengthMark asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Five/Three/One holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: Five/Three/One has 1.2K ratings behind it against 15, so its average is the more settled of the two. Written reviews complicate that: 92% of StrengthMark's written reviews are positive against 78% of Five/Three/One's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

StrengthMark ships an update every 3 months, Five/Three/One every 2 weeks. The most recent releases landed on September 28, 2026 and October 11, 2026 respectively.

Scorecard5 real differences · 5 level
StrengthMark versus Five/Three/One: the parameters behind the verdict, then further details
ParameterStrengthMarkFive/Three/One
PriceFreeFree
Rating4.7 (15 ratings)4.9 (1.2K ratings) — better
Positive reviews92.3% of reviews — better78.2% of reviews
Number of ratings151.2K — better
Update frequencyEvery 3 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPod
Requires iOS13.012.0 — better
Further details — not scored
Size9 MB37 MB
Age rating4+4+
DeveloperSalt River Software, LLCStrong Pigeon LLC

Customer experience

StrengthMark

All ratings15 ratings
Positive93.3%
Neutral0.0%
Negative6.7%
Written reviews39 reviews
Positive92.3%
Neutral0.0%
Negative7.7%

Five/Three/One

All ratings1,218 ratings
Positive97.5%
Neutral2.0%
Negative0.6%
Written reviews133 reviews
Positive78.2%
Neutral9.0%
Negative12.8%

Bugs and requests

StrengthMark

Not enough reviews yet to summarise bugs or requests.

Five/Three/One

Reported bugs

4 issues
  • Workout data occasionally lost or not syncing properly
  • Calendar and scheduling issues when trying to reschedule missed workouts
  • Plate calculation bugs leading to incorrect weight displays
  • Occasional app freezes and crashes

Requested features

5 requests
  • Allow more flexibility in scheduling and rescheduling workouts
  • Provide customization options for assistance exercises
  • Implement superset and out-of-order exercise completion
  • Add support for Apple Watch integration
  • Incorporate additional 5/3/1 program variations (e.g., Bodybuilder, Monolith)

In-app purchases

None

StrengthMark

No in-app purchases

6 purchases

Five/Three/One

One-time6
  • Custom Weight Plates$2.99
  • Tip$4.99
  • Beyond 5/3/1 Pack$5.99
Show 3 more
  • Custom Assistance$8.99
  • Large Tip$9.99
  • Enormous Tip$24.99

Questions

Is StrengthMark free?
StrengthMark is free to download, with no in-app purchases.
Is Five/Three/One free?
Five/Three/One is free to download, with in-app purchases available.
Which has better reviews, StrengthMark or Five/Three/One?
Five/Three/One is rated higher. StrengthMark averages 4.7 out of 5 from 15 ratings, while Five/Three/One averages 4.9 from 1.2K ratings.
Do StrengthMark or Five/Three/One have ads?
Neither StrengthMark nor Five/Three/One shows ads.
Which is updated more often, StrengthMark or Five/Three/One?
StrengthMark ships an update every 3 months, and Five/Three/One every 2 weeks. Most recently, StrengthMark was updated on September 28, 2026 and Five/Three/One on October 11, 2026.

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