Gain vs K WORKOUT | KSYNC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Gain
This AI-powered fitness app creates personalized workout plans based on the equipment you have at home. It offers smart rep counting, interval timing, and tracks your progress, with a free tier that includes ads during rest periods.
- AI-powered workout recommendations
- Equipment-based exercise selection
- Smart rep counter and interval timer
- HealthKit and Apple Watch integration
- Progress tracking and analytics
- Custom workout builder (Premium)
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Gain helps you plan home workouts, follow today’s session and keep your exercise targets easy to adjust. A CLEAR WORKOUT FOR TODAY See the scheduled day, your saved plan and the version of the workout prepared for today. Start training with sets, reps, weight, rest and exercise swaps close at hand. PLAN YOUR WEEK View and edit the full plan, including day-specific exercises and saved A/B variety workouts. Use controlled alternation to keep variety predictable. Review changes before applying them and preserve the exercises you want to keep. USE YOUR EQUIPMENT Choose equipment you own and browse compatible exercises. Find alternatives across your available equipment and review the exercise before swapping. Exercise instructions and equipment information help you check the choice. KEEP TARGETS IN YOUR CONTROL Adjust sets, reps and weights, and choose how to apply changes to your workout or saved plan. Explicit save and update actions make it clearer which targets will be used later. MAKE A REVIEWED ADJUSTMENT FOR TODAY See why the current workout was prepared and preview supported time or equipment adjustments. On compatible devices, Apple Intelligence can interpret a supported adjustment request. The app validates the proposed change and waits for you to apply it. COPY, EXPORT AND IMPORT YOUR PLAN Copy a complete plan or export it as structured JSON to keep a backup or prepare improvements outside the app. Import with a preview that validates exercise references, equipment and set targets. TRACK YOUR TRAINING Review completed workouts and progress. Optional Apple Health integration lets you choose whether to record workout activity. No Gain account is required. Workout records are stored on your device. Optional Apple Intelligence features require a supported device and available model. Third-party advertising and purchase services are described in the privacy policy. The free version includes ads. Optional Premium features include an ad-free experience; current options and prices are shown in the app. Subscriptions renew automatically unless canceled in your Apple Account settings. Terms of Service: https://gautam-u.github.io/fitjournal-website/terms/ Privacy Policy: https://gautam-u.github.io/fitjournal-website/privacy-policy/
K WORKOUT | KSYNC
Discover and save personalized fitness routines, track your progress, and access a vast library of exercises. Coaches can share workouts, manage clients, and monitor engagement. Includes nutrition scanning and music stations to enhance your fitness journey.
- Personalized workout builder
- 3,000+ exercise library
- Workout sharing via link/QR
- Client management for coaches
- Nutrition scanning and recommendations
- 40,000+ music stations
- Progress tracking and analytics
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KWORKOUT makes fitness simple, shareable, and coachable. Discover workouts from creators and coaches, open them instantly by link or QR code, and save your favorites inside K WORKOUT. With KSYNC, coaches can share workouts, track engagement, and manage clients in one place. Fitness for everyone. Build your perfect routine in seconds. Choose your equipment and target muscles, or let our Certified Trainer GPT help design a plan for you. From first reps to PRs, no equipment to full gym setups, KWORKOUT adapts to your level. • 3,000+ exercises • Personalized workout workflow • Save favorite workouts • Progress tracking & analytics • Multi-language support KSYNC Coaching for creators and coaches. Turn shared workouts into real client relationships. Post a workout anywhere by link or QR code, let users complete it instantly, and manage client activity inside K WORKOUT. • Share workouts anywhere • Link and QR workout access • Track clicks, saves, and engagement • Manage clients privately • Build your coaching business inside the app Smarter nutrition. Scan barcodes, discover nutrition info instantly, and save your favorites. If something doesn’t fit your goals, K WORKOUT can suggest better-rated alternatives. • Save food favorites • Quick nutrition ratings • Smart recommendations Music that moves you. Dial in the vibe for lifting, cardio, or everyday life. Explore over 40,000 stations, filter by Top 100, and save your favorites for easy playback. • 40,000+ searchable music stations • Top 100 filters • Save favorites for quick access Whether you’re training on your own, following your favorite creator, or coaching clients through KSYNC, K WORKOUT gives you the tools to move, improve, and stay consistent.
Screenshots
Verdict
The clearest difference is in-app purchases: K WORKOUT | KSYNC at none against Gain's 2. K WORKOUT | KSYNC also leads on ads (none vs shown) and device support (4 vs 2). On price, rating, ratings volume and update cadence 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. Gain sells 2 in-app purchases, starting at $2.99 per month. K WORKOUT | KSYNC asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Gain against 5.0 for K WORKOUT | KSYNC. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
Gain ships an update every 2 weeks, K WORKOUT | KSYNC every 8 days. The most recent releases landed on November 5, 2026 and October 30, 2026 respectively.
| Parameter | Gain | K WORKOUT | KSYNC |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (2 ratings) |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 2 weeks | Every 8 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 18.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 35 MB | 50 MB |
| Age rating | 4+ | 4+ |
| Developer | Sunitha Vaishnavi Nalainthran | Kintsugi LLC |
Customer experience
Gain
K WORKOUT | KSYNC
In-app purchases
Gain
- Monthly Premium$2.991 Month
- Annual Premium$19.991 Year
K WORKOUT | KSYNC
No in-app purchases









