30 day vs GymJam
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
30 day
This app offers a structured approach to plank exercises for at-home training. It focuses on core strength, weight loss, and improved posture through progressive challenges. Users can customize plans, track progress, and receive guidance for various fitness levels.
- Core muscle development
- Back and spinal health support
- Boosted metabolism
- Improved posture
- Static and dynamic plank options
- Customizable exercise plans
- Progress tracking with timer
Read full descriptionHide full description
Planking is an excellent way to tone your body. It’s efficient, requiring minimal time while delivering noticeable results quickly, as it engages muscles across your entire body. With this app, you can conveniently train at home, anytime you choose. This app is designed to aid in weight loss and help achieve a flat stomach. It offers multiple benefits: Core Muscle Development: Engage your core muscles, including the transverse abdominals, rectus abdominis, external obliques, and gluteal muscles, enhancing muscle definition and strength. Back and Spinal Health: Planking helps build muscle without straining your back and hips, offering relief from back pain and supporting your entire back, particularly the upper region. Boosted Metabolism: Burn more calories than traditional abdominal exercises, ideal for those with a sedentary lifestyle. Improved Posture: Strengthened core muscles provide optimal spinal support, promoting a more upright posture. Enhanced Athletic Endurance: Improve your overall fitness and stamina. Nervous System Benefits: Planking positively impacts your nerves, boosting mood and relieving stress and tension in the body. A correct plank impacts both your physical and emotional well-being. The app features static and dynamic plank options and caters to various training levels: beginner, intermediate, and advanced. Customize your exercise plan, create your workouts, set reminders, and track your progress with a timer and sound notifications. Share your achievements with friends on social media and follow detailed instructions for each workout. The workouts gradually increase in duration and intensity, ensuring a consistent challenge. Transform your fitness routine with this plank-focused app, and enjoy the journey towards a healthier, stronger you.
GymJam
This AI-powered fitness companion plans workouts, tracks progress, and offers personalized training based on your goals and equipment. Log every rep, view past performance, and stay motivated with a supportive community. Integrates with Apple Watch for seamless tracking.
- AI-powered workout suggestions
- Personalized 7-day training plans
- Detailed rep and set tracking
- Apple Watch and Live Activities integration
- Community features for sharing and motivation
- Progress visualization
Read full descriptionHide full description
GymJam is your personal AI-powered fitness companion — built to plan your workouts, track your progress, and keep you motivated through a community of real people chasing real goals. SMART AI COACH Chat with your AI coach anytime. Get workout suggestions tailored to your goals, experience level, and available equipment. It knows your history, adapts to your progress, and creates sessions on the fly — right from the conversation. PERSONALIZED TRAINING PLANS Tell GymJam your goal — build muscle, lose weight, improve endurance, or train for a sport — and get a 7-day training plan generated just for you. Plans auto-advance weekly so you always know what's next. TRACK EVERY REP Log sets, weights, and reps with a clean, fast interface designed for the gym floor. See your previous performance for every exercise so you know exactly what to beat. Supersets, custom exercises, and weight suggestions are all built in. APPLE WATCH & LIVE ACTIVITIES Keep your workout visible on your wrist and your Lock Screen. GymJam's Watch companion and Dynamic Island support let you stay focused without pulling out your phone between sets. COMMUNITY Share your workouts, celebrate personal records, and follow friends. See what others are training, leave comments, and discover new routines through shareable workout templates. YOUR PROGRESS, VISUALIZED Track consistency streaks, total volume, calories burned, personal records, and more. Your profile tells the full story of your fitness journey. BUILT AROUND YOU A 2-minute onboarding personalizes everything — from exercise selection to rest times — based on your goals, experience, injuries, and equipment access. Start training smarter. Download GymJam today. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is ads: GymJam at none against 30 day's shown. GymJam also leads on rating (5.0 vs 4.7). 30 day's advantage is ratings volume (154 vs 1) and iOS requirement (13.0 vs 18.0). On price, update cadence, in-app purchases and monetization model 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. 30 day sells 1 one-off in-app purchase and GymJam sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
GymJam holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: 30 day has 154 ratings behind it against 1, so its average is the more settled of the two.
30 day ships an update every 9 days, GymJam every 11 days. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.
| Parameter | 30 day | GymJam |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (154 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 154 — better | 1 |
| Update frequency | Every 9 days — better | Every 11 days |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 13.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 14 MB | 17 MB |
| Age rating | 9+ | 17+ |
| Developer | Bustgrow Ltd | Denys Yefremov |
Customer experience
30 day
GymJam
Bugs and requests
30 day
Reported bugs
4 issues- Timer error on advanced level (22nd day)
- App doesn't load or opens very slowly
- App crashes on launch after update
- App stops loading after first day
Requested features
5 requests- Add widgets
- Add reminders and notifications
- Review plank technique
- View past days' seconds
- Develop higher levels and new sports
GymJam
Not enough reviews yet to summarise bugs or requests.
In-app purchases
30 day
- Pro version$0.99
GymJam
- GymJam Premium — Monthly$3.991 Month
- GymJam Premium — 3 Months$9.993 Months
- GymJam Premium — Annual$29.991 Year









