Comparison

HST Log 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

HST Log

This app guides users through a scientifically proven training program designed to maximize muscle growth. It follows a structured eight-week cycle with progressive loading and strategic deconditioning to optimize results for intermediate to advanced weightlifters.

Highlights
  • Scientifically proven training principles
  • Eight-week structured program
  • Progressive load increases
  • Strategic deconditioning periods
  • Focus on mechanical load stimulus
  • Frequent exposure to growth stimulus
Features
Read full description

Hypertrophy Specific Training (HST) is a scientifically proven set of training principles designed to optimize training for muscle size. Hypertrophy Specific Training is a bodybuilding program based on physiological principles of muscular growth discovered through science. Based on recent research, Hypertrophy Specific Training is the most scientifically valid way to train for muscle size and growth. In its most basic form Hypertrophy Specific Training consists of an eight week program broken up into four consecutive two week blocks. The first two weeks are spent doing 15 rep sets, starting out at a percentage of your 15 rep max the first day and progressing the load used over the course of two weeks until on the final day of those two weeks you are lifting your 15 rep max. Your muscles will become conditioned to loads and it will eventually become ineffective at causing growth, so we don't want to spend a long period of time using the same load. After a proper deload your muscles should be receptive to the lighter loads of the early 15s and should respond with growth. The point is not to lift your absolute max each workout, the point is to get growth all throughout the cycle by raising the weight consistently. Hypertrophy Specific Training operates from 4 main principles: 1. Mechanical Load - Mechanical load is the primary growth stimulus. 2. Acute vs. Chronic Stimuli - Muscle must be exposed to the growth stimulus frequently. 3. Progressive Load - Muscle tissue will adapt to the load as you continue to train. 4. Strategic Deconditioning - When progress stops or growth plateaus, it is necessary to take a break from training. Hypertrophy Specific Training is intended for intermediate to advanced weightlifters. If you are unfamiliar with weight lifting you should start with an easier program before running a Hypertrophy Specific Training cycle. Please note: The Hypertrophy Specific Training program was developed by Bryan Haycock. This is not an official HST app and may deviate from information found elsewhere.

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

HST Log4 screens
Five/Three/One4 screens

Verdict

The call

The clearest difference is review sentiment: Five/Three/One at 78% against HST Log's 13%. Five/Three/One also leads on rating (4.8 vs 3.1) and ratings volume (1.5K vs 11). HST Log's advantage is monetization model (free vs free with in-app purchases) and iOS requirement (9.0 vs 12.0). On price, ads, in-app purchases 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. HST Log sells 1 one-off in-app purchase and Five/Three/One sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Five/Three/One holds the better App Store score, 4.8 against 3.1. That said, the two scores are not equally well evidenced: Five/Three/One has 1.5K ratings behind it against 11, so its average is the more settled of the two. Written reviews point the same way: 13% of HST Log's written reviews are positive against 78% of Five/Three/One's.

UpkeepUpdate frequency

HST Log ships an update monthly, Five/Three/One every 2 weeks. Both last shipped on October 24, 2026.

Scorecard6 real differences · 4 level
HST Log versus Five/Three/One: the parameters behind the verdict, then further details
ParameterHST LogFive/Three/One
PriceFreeFree
Rating3.1 (11 ratings)4.8 (1.5K ratings) — better
Positive reviews12.5% of reviews78.2% of reviews — better
Number of ratings111.5K — better
Update frequencyMonthlyEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS9.0 — better12.0
Further details — not scored
Size18 MB37 MB
Age rating4+4+
DeveloperCharles VanderhoffStrong Pigeon LLC

Customer experience

HST Log

All ratings11 ratings
Positive36.4%
Neutral36.4%
Negative27.3%
Written reviews16 reviews
Positive12.5%
Neutral18.8%
Negative68.8%

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

HST Log

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

1 purchases

HST Log

One-time1
  • HST Pro$4.99
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 HST Log free?
HST Log is free to download, with in-app purchases available.
Is Five/Three/One free?
Five/Three/One is free to download, with in-app purchases available.
Which has better reviews, HST Log or Five/Three/One?
Five/Three/One is rated higher. HST Log averages 3.1 out of 5 from 11 ratings, while Five/Three/One averages 4.8 from 1.5K ratings.
Do HST Log or Five/Three/One have ads?
Neither HST Log nor Five/Three/One shows ads.
Which is updated more often, HST Log or Five/Three/One?
HST Log ships an update monthly, and Five/Three/One every 2 weeks. Most recently, HST Log was updated on October 24, 2026 and Five/Three/One on October 24, 2026.

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