zRep vs JustBB Strength Training Log
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
zRep
This strength training app offers fast workout logging, a supportive community, and an AI coach for personalized training and nutrition guidance. It provides unlimited logging, templates, and progress tracking without any ads or required subscriptions.
- Unlimited workout logging
- Workout templates and history
- Rest timer and plate calculator
- Apple Watch companion app
- Community feed and accountability
- AI coach for training and nutrition
- Progress charts and milestones
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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
JustBB Strength Training Log
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JustBB is the cleanest, most powerful log for lifters who actually train hard. Completely free. No subscriptions. No account. No ads. Your data stays on your iPhone. — Core features — • Build exercises, supersets, and custom per-set targets your way • Categories and equipment for every exercise • Automatic dropset detection • Auto-fills weights and reps from your previous sessions • Per-set rating (easy / moderate / hard / failure) • Session tonnage and per-exercise personal records • Rest timer (runs on the lock screen) • Nested folders for a large training library • Drag & drop, search, dark mode, fully offline • Kilograms and pounds • Full session history and per-exercise history — Data and privacy — • Stored locally on your device • Backups to iCloud Drive • One-tap restore
Screenshots
Verdict
The clearest difference is in-app purchases: JustBB Strength Training Log at none against zRep's 3. zRep's advantage is device support (3 vs 1). On price, update cadence, ads and iOS requirement 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
Both are free to download. zRep sells 3 in-app purchases, starting at $4.99 per month. JustBB Strength Training Log asks for nothing beyond the download.
zRep ships an update every 5 days, JustBB Strength Training Log weekly. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.
| Parameter | zRep | JustBB Strength Training Log |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 5 days — better | Weekly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone |
| Requires iOS | 16.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 21 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Seifeldin Zook | Andrew Olefira |
In-app purchases
zRep
- zRep Pro$4.991 Month
- zRep Pro$29.991 Year
- zRep Pro — Lifetime$79.99
JustBB Strength Training Log
No in-app purchases









