GymSync vs 75 Day Challenge
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GymSync
Easily book and manage fitness classes at your gym. View schedules, reserve spots, and receive timely reminders. Get instant notifications for cancellations and reserve list openings.
- View class timetables
- Book and cancel classes
- Join reserve lists
- Class reminders
- Instant notifications
Read full descriptionHide full description
PLEASE NOTE THIS APP WILL ONLY WORK IF YOUR GYM IS CURRENTLY USING GYMSYNC. Book fitness classes with just the touch of a button, anytime, anywhere! If your gym is already signed up to GymSync, download the app and you’re all set to view timetables, book and manage your fitness classes. Contact your gym to find out of they're signed up to GymSync. Features * View class timetables for your gym * Book and cancel your attendance for your favourite classes * Add yourself to a reserve list for classes that are fully booked * Get timely reminders for your classes, so you never forget your kit! * Get instant notifications for reserve place availability, and class cancellations. On the go, instant, hassle free class booking.
75 Day Challenge
This app guides users through a 75-day program to build healthy habits and develop resilience. It focuses on consistency and sustainable change for both physical and mental wellness, offering a balanced approach to self-improvement.
- Build lasting healthy habits
- Stay motivated daily
- Visualize progress
- Home screen widgets (Premium)
- Customize challenge rules (Premium)
- Flexible scheduling
Read full descriptionHide full description
I originally built this app for myself, as a fitness enthusiast looking to rebuild healthy habits. After experiencing its positive impact, I refined it to help others achieve the same transformation. In just 75 days, you’ll build better habits, push your limits, and develop the resilience to tackle any goal. WHY THE 75 SOFT? - Achieve Lasting Change: Transform your daily routine and watch how small, consistent actions lead to big, lasting results. - Stay Motivated Every Day: It’s not just about crossing off tasks; it’s about creating momentum. With each day, you’ll feel more motivated to keep going. - Create Healthier Habits: From fitness to mental wellness, you’ll develop routines that set you up for long-term success—without overwhelming yourself. - Visualize Your Progress: Seeing how far you’ve come will inspire you to keep pushing forward, even on tough days. - Share Your Wins: turn any completed day into a beautiful sticker, add your own photo, and post your progress straight to your story. - Life Happens? Forgiving Mode keeps your challenge alive even when a day isn't perfect — progress over perfection. - Smart Daily Reminders: one gentle nudge at the time you choose. It skips days you've already completed and stops when your challenge ends. - Home Screen Widgets (Premium): Track and update your challenge directly from your Home Screen with interactive widgets. - Customize Your Challenge (Premium): Edit challenge rules and add up to 4 custom rules to tailor the challenge to your goals and make it uniquely yours. - Flexibility for Your Life: Choose your start date or adjust it later if needed, making it easier to fit the challenge into your schedule. If you’ve heard of the 75 Hard, you know how intense and demanding it can be. The 75 Soft offers a more balanced approach to self-improvement, focusing on consistency and sustainable habits without the extreme pressure. It’s perfect for those who want to challenge themselves but also value flexibility and long-term success. WHAT’S POSSIBLE? - A healthier, more focused you—both physically and mentally. - The confidence that comes with discipline and consistency. - The ability to stick to your goals, even when life gets in the way. - A sense of accomplishment that fuels your next big challenge. TAKE CONTROL OF YOUR JOURNEY Whether you're looking to improve your fitness, sharpen your mindset, or simply stay committed to personal growth, the 75 Soft helps you create the life you want—one day at a time. Your journey starts here. Download now and become the best version of yourself. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: 75 Day Challenge at 88% against GymSync's 29%. 75 Day Challenge also leads on ratings volume (411 vs 1). GymSync's advantage is in-app purchases (none vs 7) and rating (5.0 vs 4.7). On price and ads 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. 75 Day Challenge sells 7 in-app purchases, starting at $3.99 per 7 days. GymSync asks for nothing beyond the download.
GymSync holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: 75 Day Challenge has 411 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 29% of GymSync's written reviews are positive against 88% of 75 Day Challenge's, so the app with the better star average is not the one people write more warmly about.
GymSync ships an update weekly, 75 Day Challenge every 3 weeks. The most recent releases landed on October 16, 2026 and October 23, 2026 respectively.
| Parameter | GymSync | 75 Day Challenge |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.7 (411 ratings) |
| Positive reviews | 29.4% of reviews | 88.2% of reviews — better |
| Number of ratings | 1 | 411 — better |
| Update frequency | Weekly — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 40 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | SD17 | Inkolab |
Customer experience
GymSync
75 Day Challenge
Bugs and requests
GymSync
Not enough reviews yet to summarise bugs or requests.
75 Day Challenge
Reported bugs
2 issues- App crashes when trying to start the challenge
- Issues with the app on older iOS versions
Requested features
3 requests- Add ability to track additional daily goals
- Implement calendar view to see progress
- Allow recording of specific water intake amounts
In-app purchases
GymSync
No in-app purchases
75 Day Challenge
- Premium Access3 Days trial$3.997 Days
- Premium Access3 Days trial$4.997 Days
- Premium Access$14.991 Year
Show 2 moreShow fewer
- Premium Access$19.991 Year
- Premium Access$29.991 Year
- Unlock all features$4.99
- Unlock all features$34.99
Questions
Is GymSync free?
Is 75 Day Challenge free?
Which has better reviews, GymSync or 75 Day Challenge?
Do GymSync or 75 Day Challenge have ads?
Which is updated more often, GymSync or 75 Day Challenge?
Other comparisons















