Gainz Trakr vs Slab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Gainz Trakr
Log workouts, track progress, and stay accountable with this strength training companion. It helps you measure performance against past efforts, build reusable templates, and visualize trends to ensure consistent improvement.
- Reusable workout templates
- Easy strength training logging
- Compete against yourself
- Progress and metrics dashboard
- Streaks and weekly goals
- Apple Health integration
- Live Activities and Widgets
Read full descriptionHide full description
Gainz Trakr is a no BS workout tracker for iPhone that helps you log workouts, measure real progress, and compete against yourself over time. What makes Gainz Trakr different is that it is not just a workout log. It helps you answer the question every lifter eventually asks: am I actually progressing? By comparing your current performance to your past workouts, Gainz Trakr helps you stay honest, stay accountable, and keep pushing for just a little more weight, a few more reps, or better consistency over time. Build reusable workout templates, log your strength training with ease, and spot meaningful changes across your workouts over time. If progress starts to stall, Gainz Trakr gives you a clear view of your history so you can tell whether your weights, reps, and overall performance are truly moving in the right direction. Features Reusable Workout Templates Create templates for any workout routine you want, add exercises, and start a workout in seconds. Easy Workout Logging Track strength sets, bodyweight reps, and cardio sessions in one clean, streamlined experience. Compete Against Yourself See your past performance at a glance and measure each workout against your history, so you always have a clear target to push past. Progress & Metrics Dashboard Track personal records, volume, monthly averages, and exercise trends over time, including whether you’re improving, holding steady, or declining. Streaks and Weekly Goals Stay accountable with current streaks, longest streaks, and customizable weekly workout goals. Body Weight Tracking Log your body weight and monitor your weight over time. Apple Health Integration Optionally sync with Apple Health for a more connected fitness experience. Live Activities Keep your live workout visible in the Dynamic Island and on your Lock Screen, with elapsed time and your current exercise always in view. Simply click to open the app and log your next set. Widgets Add your weekly goal and training streak to your Home Screen or Lock Screen for a quick view of your progress. Backup and Restore Export your full workout history, including exercise photos, to a single JSON backup file you control.
Slab
This app focuses solely on tracking your daily protein intake, visualizing your progress with stacked blocks. It offers quick logging of common foods, barcode scanning, and custom entries, all without displaying calories or other nutritional data. The app emphasizes consistency and streaks, keeping your data private on your device.
- Protein-only tracking
- Visual block-based logging
- Quick log of frequent foods
- Barcode scanning
- Custom food entries
- Progress streak tracking
- Private, on-device data
Read full descriptionHide full description
Slab is a protein tracker that never shows you a calorie. Not buried in settings. Not calculated in the background. One number, all day: grams of protein, and how far you are from your target. Slab requires a subscription to use. Your first month is free, then $29.99 a year or $5.99 a month. THE STACK Everything you log drops in as a block, sized by the protein it added. A dashed line marks your target. You can read your whole day from across the room. ONE TAP The foods you actually eat sit on the home screen, most-logged first. Chicken breast, whey, Greek yogurt, eggs. Tap once and the block drops in. Most days you never leave this screen. FOR EVERYTHING ELSE • Search a catalog built from USDA data and curated by hand, not scraped from restaurant menus • Scan a barcode for anything packaged • Save your own foods once and log them forever • Type any amount, anywhere, and everything is in grams WHAT HISTORY LOOKS LIKE No charts to interpret. Slab answers the only question worth asking: how often do you hit your target. Hit target 24 of the last 30 days. The streak counts days you logged, not days you were perfect, because one bad Sunday shouldn't erase three weeks. WHAT IS NOT IN HERE No calories. No macro wheels. No food photography. No feed. No account to make. No ads. And no premium tier above the subscription you already have — search and barcode are part of the app, not an upsell. Your data stays on your phone and syncs through your own iCloud. It never reaches a server of ours, because we don't have one. Your first month is free. If Slab isn't the fastest way you have ever logged protein, cancel before the month ends and pay nothing. — Slab, yearly: $29.99 per year, with one month free Slab, monthly: $5.99 per month, with one month free Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless it is turned off at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours of the end of the current period. You can manage or cancel your subscription in your Apple Account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Gainz Trakr at none against Slab's 2. On price, rating, review sentiment and ratings volume 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. Slab sells 2 in-app purchases, starting at $5.99 per month. Gainz Trakr asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Gainz Trakr against 5.0 for Slab. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Gainz Trakr ships an update weekly, Slab every 4 days. Both last shipped on October 31, 2026.
| Parameter | Gainz Trakr | Slab |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (2 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2 | 2 |
| Update frequency | Weekly | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Subscription |
| Devices | iPhone, Apple Watch — better | iPhone |
| Requires iOS | 18.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 8 MB | 9 MB |
| Age rating | 4+ | 12+ |
| Developer | Hershkovitz Bros LLC | One Step Forward Ventures |
Customer experience
Gainz Trakr
Slab
In-app purchases
Gainz Trakr
No in-app purchases
Slab
- Monthly1 Month trial$5.991 Month
- Yearly1 Month trial$29.991 Year









