Comparison

zRep vs Stark

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

Head to head
About

zRep

Log your gym workouts, track your lifts, and organize your training sessions. This app offers live workout logging, a comprehensive exercise library, and progress tracking. An optional subscription unlocks advanced features like unlimited templates and partner training.

Highlights
  • Live workout logging with detailed metrics
  • Extensive exercise library with search
  • Progress charts and personal records
  • Apple Watch companion app
  • Workout template saving
  • Partner training features (Pro)
  • Body measurements tracking (Pro)
Features
Read full description

EARN YOUR REPS zRep is a free strength training app for the gym floor—fast logging, Community, and an AI coach that helps with your training and nutrition. No ads. No subscription required. TOTALLY FREE • Unlimited workout logging (sets, reps, weight, RPE) • Unlimited templates & full history • Rest timer · exercise library · plate calculator • Apple Watch companion (mirror + remote—phone is source of truth) • Cloud sync when you sign in · Apple Health • Community, AI coach, and nutrition—included, not locked behind Pro COMMUNITY Create a free account, follow lifters by code, and see finished sessions in the feed. Like and comment. Mutual follows unlock Compare PRs and nudges so you can stay accountable without a group chat. AI COACH & NUTRITION Build a coach plan around your goal (build muscle, get stronger, lose fat, and more). Chat with zRep AI to adjust for the equipment you have and swap exercises you can actually do. Pair training with a nutrition plan in the same app. WORKOUT LOGGING Log between sets without fighting the UI. Track weight, reps, RPE, and notes. Rest timer keeps you on pace. Finish a session and see what you earned. TEMPLATES & PROGRESS Save routines you repeat. Start from a template and train. History, charts, and milestones so you know if the numbers are climbing. APPLE WATCH Glance at the live session, start rest, pause, or finish from your wrist—built as a gym-floor remote, not a separate logging app. WHO IT’S FOR Strength lifters and gym-goers who want a fast log plus Community and coaching tools—without paying to unlock the basics. Privacy, support, and terms: https://zrep.kz-minds.com

About

Stark

Features
Read full description

Stark. Workout Tracker Stark is a simple and powerful workout tracker built for lifters who want structure, consistency, and real progress. No ads. No account required. No subscription. Start training instantly. Track workouts, log sets and reps, and follow your progress over time without distractions. Create custom workout routines for push, pull, legs, full body, or your own split. Log every set and rep with ease and keep your training consistent. Progressive overload tracking See your training volume increase over time. View full workout history, track personal records, and monitor strength progression clearly. Streak tracker Stay consistent with a streak system that keeps you accountable. Miss a week and it resets. Keep going and build momentum. Quickly calculate how to load the bar. Enter your target weight and get the exact plates needed instantly. Automatic rest timer starts after each set. Stay on track with countdown alerts so you never lose focus between sets. Exercise library and workout log Access your full exercise library, log weights, track progress per movement, and review your lifting history anytime. Fast, minimal interface designed for training sessions. Works in dark or light mode depending on your environment. Stark is free to download and requires no account or subscription. Just open and start lifting. FEATURES Workout Templates — Build reusable routines for any split and launch them in one tap. Set & Rep Logging — Log every set with weight and reps as you train, in real time. Rest Timer — Auto-starts after each set with a visual countdown and "Get Ready" alert. Plate Calculator — Enter your target weight and instantly see which plates to load. Exercise Library — Browse a full exercise database with per-exercise history and personal records. Session History — Review every past workout with full set-by-set detail. Weekly Report — Get a clear summary of your training each week, including volume, progress, and consistency. Training Streaks — Stay accountable with a streak that resets if you skip a week. Progress Charts — Visualize strength gains and volume trends across time. Exercise Swaps — Quickly swap exercises mid-workout if equipment is taken or you want a change. Dark & Light Mode — Full support for both — looks sharp either way. No ads. No subscriptions. — Free to download, nothing locked away. Fully functional offline!

Screenshots

zRep4 screens
Stark4 screens

Verdict

The call

The clearest difference is in-app purchases: Stark at none against zRep's 3. On price, update cadence, 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. zRep sells 3 in-app purchases, starting at $4.99 per month. Stark asks for nothing beyond the download.

UpkeepUpdate frequency

zRep ships an update every 5 days, Stark every 10 days. The most recent releases landed on October 25, 2026 and October 18, 2026 respectively.

Scorecard1 real difference · 9 level
zRep versus Stark: the parameters behind the verdict, then further details
ParameterzRepStark
PriceFreeFree
Rating4.7 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 5 days — betterEvery 10 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS16.615.0 — better
Further details — not scored
Size21 MB50 MB
Age rating4+4+
DeveloperSeifeldin ZookAnton Larsson

In-app purchases

3 purchases

zRep

Subscriptions2
  • zRep Pro$4.991 Month
  • zRep Pro$29.991 Year
One-time1
  • zRep Pro — Lifetime$79.99
None

Stark

No in-app purchases

Questions

Is zRep free?
zRep is free to download, with in-app purchases available.
Is Stark free?
Stark is free to download, with no in-app purchases.
Do zRep or Stark have ads?
Neither zRep nor Stark shows ads.
Which is updated more often, zRep or Stark?
zRep ships an update every 5 days, and Stark every 10 days. Most recently, zRep was updated on October 25, 2026 and Stark on October 18, 2026.

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