CNTD vs Core30
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CNTD
Monitor your eBike's battery, speed, and location. Optimize rides with heart rate-based motor assistance and plan routes with real-time traffic. Share your cycling activities and find nearby dealers for maintenance.
- eBike status monitoring (battery, speed, location)
- Heart rate training with automatic assistance adjustment
- eBike dealer locator
- Route navigation with real-time traffic
- Share ride activity data
- Dark theme option
- Apple Watch support
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CNTD is an app designed to help you have a better experience with your eBike. The app offers many useful features, including: eBike Status Monitoring: You can check your eBike battery level, eBike speed, total distance and other information at any time, and view the location of your eBike via an online map. Heart Rate Training: The eBike can display the rider's heart rate data in real-time and automatically adjust the motor assistance level based on the pre-set heart rate range. eBike Maintenance: The app will help you locate the nearest dealer, which makes it easier to take care of your eBike. Route Navigation: The app helps you plan the best navigation and provides real-time traffic information to help you avoid congested roads. Share Your activities: You can also share your ride routes. Includes information on ride time, calories, max speed, average speed, average pedaling max pedaling and more. Dark Style: We also provide you with a dark theme, which you can use at your own discretion. All in all, Vinka Life 2.0 is a very useful app that can help you use your eBike better and enjoy a more comfortable riding experience. --- Please Note --- - Apple watch support - GPS cycling may consume some power CNTD supports Healthkit. Exercise data from Health could be accessed and synced to the Health app when authorised.
Core30
Build a stronger core with quick, effective workouts designed for busy schedules. Featuring 5-10 minute routines and 30-second exercises, this app helps you improve stability and strength. Track your progress and sync with Apple Health for a complete fitness overview.
- Quick 5-10 minute workouts
- 30-second timed exercises
- Workouts for all fitness levels
- No equipment required
- Progress tracking
- Apple Health integration
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Core30 builds a stronger core in a few minutes a day. Tell it your goal and level, and it gives you a 30-day plan of short, guided ab and core workouts you can do anywhere, with no equipment. Press play and follow along: every exercise is timed, every rest is counted down, and an animated demonstration shows you exactly how to move. YOUR 30-DAY PLAN • Built around your goal: a stronger core, defined abs, better posture, a healthier back, your sport or a daily habit • Pick beginner, intermediate or advanced, and the plan gets harder as you do • One session a day, most of them 5 to 10 minutes • No equipment needed GUIDED WORKOUTS • 10 ready-made core and ab workouts, from beginner to advanced • Animated demonstrations of every exercise • Form tips and common mistakes for each move • Countdown tones as each exercise starts and for the last three seconds • Build your own workouts and set your own work and rest times STAY ON TRACK • Streaks and a weekly view of the days you trained • Workouts, active minutes and estimated calories by week, month and year • A daily reminder that skips days you've already trained • Finished workouts saved to Apple Health CORE30 PRO Starting workouts needs Core30 Pro, an auto-renewing subscription. You can browse every workout and exercise guide for free. Prices and any free trial are shown in the app before you subscribe. Payment is charged to your Apple Account. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period, and can be managed or cancelled in your App Store account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://core30web.vercel.app/posts/privacy Check with your doctor before starting a new exercise program if you have a health condition, an injury or back pain.
Screenshots
Verdict
The clearest difference is in-app purchases: CNTD at none against Core30's 3. CNTD also leads on device support (3 vs 1) and iOS requirement (13.0 vs 18.0). Core30's advantage is update cadence (every 8 days vs every 5 weeks). 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. Core30 sells 3 in-app purchases, starting at $2.99 per 7 days. CNTD asks for nothing beyond the download.
CNTD ships an update every 5 weeks, Core30 every 8 days. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | CNTD | Core30 |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (6 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | — | 6 — better |
| Update frequency | Every 5 weeks | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPod, Apple Watch — better | iPhone |
| Requires iOS | 13.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 170 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Suzhou Wanjia Electric Co., Ltd. | Gruffydd Johnston |
Customer experience
CNTD
Core30
In-app purchases
CNTD
No in-app purchases
Core30
- Weekly3 Days trial$2.997 Days
- Annual$14.991 Year
- Lifetime$99.99









