# PUMPZZ: Gym Workout Tracker — Strength Score Workout Log > Gym workout tracker with AI-driven weight and rep suggestions for progressive overload. (iPhone/iPad app by Alex Tirim.) - Source: https://appshunter.io/ios/app/pumpzz-gym-workout-tracker/id6759228538 (this page in markdown: same URL + `.md`) - Developer: [Alex Tirim](https://appshunter.io/developer/1855322163) - Category: Health & Fitness, Sports - Price: Free with in-app purchases - Rating: 4.50/5 from 23 App Store ratings · 3 written reviews indexed - Age rating: 4+ - Requires: iOS 15.1 · 194 MB - Languages: American English - Released: 2026-03-12 - Data updated: 2026-08-22 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/pumpzz-gym-workout-tracker/id6759228538/reviews.md ## What is PUMPZZ? RepStack turns your lifting into one number — a Strength Score from 0 to 999 — and tells you exactly what to lift today. Exact weight. Exact reps. Log the set, and the next target is already picked. No spreadsheet math. No "add weight or add reps?" debate between sets. You show up, hit the targets, and watch the number climb from Foundation to Elite. PHYSIQUE SCORE Your physique gets a number too. Take one photo and get a 0–999 Physique Score: every visible muscle group graded, with notes pinned right on your photo showing what's developed, what's lagging, and what to train to fix it. Add back and side poses for the full analysis, rescan later, and watch the score move. Photos are stored only on your device — scans are processed securely and never saved on our servers. PROGRAM LIBRARY Start a proven program in two taps: Wendler 5/3/1, nSuns, GZCLP, 5x5, Reddit PPL, PHUL, PHAT-style, upper/lower, full body, and more. Percentage-based programs set up your training maxes for you and handle week-to-week progression automatically — no percentage math between sets. WHY LIFTERS USE REPSTACK Know your next weight and rep target before every set Adapt when the gym is busy: swap days, replace exercises, edit sets and reps — for today or for every week Log real strength training: warmups, working sets, AMRAPs, drop sets, failure sets, RPE, RIR, and rest times Import your own program from text, XLSX, or CSV instead of rebuilding it by hand Load barbells faster with the plate calculator in kg or lbs Search 873 exercises with images, muscle filters, and offline access See PRs, e1RM trends, volume, Workout Rewind, and What-If Projections BUILT FOR THE GYM RepStack works offline and does not require an account. Your log stays available when the gym Wi-Fi is bad, your program changes, or you just want to start lifting. FREE Unlimited workout logging, 873 exercises, custom routines, free Program Library programs, rest timer, plate calculator, 30-day history, personal records, and your first full Physique Score analysis. REPSTACK PRO Unlock exact progressive-overload targets, Strength Score, Physique Score rescans and comparisons, the full Program Library, What-If Projections, Workout Rewind, full history, program import, iCloud sync, shareable progress cards, Live Activity, and advanced progress charts. Terms of Use: https://rep-stack.com/terms Privacy Policy: https://rep-stack.com/privacy ## Key features - AI-driven weight and rep suggestions - Adaptable workout scheduling - Detailed set type logging - Plate calculator - Offline exercise library - Progressive overload tracking ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Repstack Pro Monthly | $9.99 | per month | | Repstack Pro Yearly | $39.99 | per year | | Repstack Pro Weekly | $2.99 | per 7 days | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Repstack Pro Lifetime | $119.99 | one-time | ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/pumpzz-gym-workout-tracker/id6759228538/reviews.md ### 1/5 — False *2026-06-01* Makes you create account for 7 day trial then pay, after entering initial numbers. **Developer response:** You can actually skip this — there’s a “Maybe Later” option at the bottom of the paywall, no purchase needed to keep using the app. Sounds like it wasn’t visible enough, so that’s on me to fix. Appreciate you flagging it. ### 3/5 — Seems good will update in a week *2026-05-28* This app seems good, it wants money but you can skip it for the moment if you know where to look, I will keep using it and let yall know if I like it and if I end up paying money for the other features, wish it was completely free, but that doesn’t exist in this world, one thing that bugged me right off the bat is I tried adding sit ups to my workout and the app bugged out and didn’t let me, other then that it’s super smooth and easy to use. **Developer response:** I’m happy to hear you have an overall good experience. If you have any additional feedback or anything else, feel free and let me know, I am more than happy to fix. Also thank you for using it!! ### 1/5 — Legit pointless *2026-04-06* Went on there to look at how my strength compared only for it to give me a workout, and that was it not even based on the weight that I used just based on whatever it wanted **Developer response:** You're right that this could be clearer on first open — that's on me to fix. For context: the Strength Score is calculated from your bodyweight and experience level using standard ratios for the 5 main lifts, and gets more accurate as you log real sets. The workout is a starting point built from your experience level, fully editable. If you're open to giving it another shot, email hello@rep-stack.com and I'll personally walk you through it. ## Frequently asked questions about PUMPZZ ### Does RepStack have ads? Yes, RepStack contains advertisements. As a free application, ads are displayed to support its development and maintenance. ### What are the subscription options for RepStack Pro? RepStack Pro offers weekly at $2.99, monthly at $9.99, and yearly at $39.99. The yearly plan includes a 7-day free trial. ### Can I use RepStack without an internet connection? Yes, RepStack works offline. This means you can log your workouts and access the exercise library even when gym Wi-Fi is poor or unavailable. ### How does RepStack help with progressive overload? RepStack automatically updates your weights and reps based on your previous performance, guiding you through progressive overload without the need for manual tracking or spreadsheets. ### What kind of workout details can I log in RepStack? You can log detailed strength training information including warmups, working sets, AMRAPs, drop sets, failure sets, RPE, RIR, and rest times. ### What devices is RepStack available on? RepStack is currently supported on iPhone and iPod devices. ### How often is RepStack updated? The latest version, 5.4.0, was released on June 29, 2026. Updates are frequent, ensuring the app remains reliable and feature-rich. ### What makes RepStack's AI coach useful? The AI coach tells you the exact weight and rep target before each set, adapting your workout dynamically. It also provides features like Strength Score and What-If Projections for advanced training insights. ## Version history (last 5 releases) ### 6.0.0 — 2026-08-21 RepStack is now PUMPZZ. Same powerful workout tracking, now with a sharper name and a brand-new identity. Your workouts, progress, programs, and account remain exactly where you left them. Open PUMPZZ and keep getting stronger. ### 5.6.1 — 2026-07-13 PHYSIQUE SCORE Take one photo and get a 0–999 score for your physique. Every visible muscle group is graded, notes are pinned right on your photo, and lagging groups link straight into your training. Add back and side poses for the full analysis, rescan later, and watch the score move. Photos are stored only on your device — and your first full analysis is free. PROGRAM LIBRARY 18 proven programs, ready in two taps: Wendler 5/3/1 (Original + BBB), nSuns 531LP, GZCLP, 5x5, Reddit PPL, PHUL, PHAT-style, and RepStack originals like Powerbuilding and Body Recomp. Percentage programs set your training maxes and handle week-to-week progression automatically. Plus fixes and performance improvements. ### 5.6.0 — 2026-07-10 PHYSIQUE SCORE Take one photo and get a 0–999 score for your physique. Every visible muscle group is graded, notes are pinned right on your photo, and lagging groups link straight into your training. Add back and side poses for the full analysis, rescan later, and watch the score move. Photos are stored only on your device — and your first full analysis is free. PROGRAM LIBRARY 18 proven programs, ready in two taps: Wendler 5/3/1 (Original + BBB), nSuns 531LP, GZCLP, 5x5, Reddit PPL, PHUL, PHAT-style, and RepStack originals like Powerbuilding and Body Recomp. Percentage programs set your training maxes and handle week-to-week progression automatically. Plus fixes and performance improvements. ### 5.5.0 — 2026-07-02 Your Strength Score is now front and center — see it move after every session. ### 5.4.0 — 2026-06-29 RepStack is now a smarter gym workout tracker for strength training, progressive overload, and workout logging. New Strength Score onboarding shows where you are and turns your score into exact workout targets. Your first workout flow is smoother, with workout preview, schedule context, reminders, and a faster path to start training. Fixed fixed-weekday scheduling, rest days, and program cycles so Day A/B/C, workout weeks, and recycled programs stay reliable. Improved workout editing, exercise substitution, draft sessions, PR summaries, volume, and Strength Score impact after each workout. ## More apps by Alex Tirim - [LearnLog - Daily Recall](https://appshunter.io/ios/app/learnlog-daily-recall/id6758619751) All apps by Alex Tirim: https://appshunter.io/developer/1855322163 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-22.*