Zehus App vs KBuddy 9
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Zehus App
Manage your e-bike's motor, customize power modes, and secure it when parked. Analyze ride statistics and view heart rate data from your Apple Watch. Your health profile data is not stored.
- Motor control and management
- Power mode customization
- Electric motor lock for security
- Ride statistics analysis
- Apple HealthKit integration for heart rate
- View riding data on Apple Watch
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The Zehus App is a control center that can be used as a dashboard to manage the motor and glance riding data, customize power modes, and electrically lock the motor when your e-bike is parked. After your rides, you can access the new Zehus Rides statistics section, where you can analyze the data collected by the motor during each ride. ** Zehus App relies on Apple Healthkit to let you check your hearth rate on your Apple Watch** * No data of your health profile is stored *
KBuddy 9
This digital workout companion helps manage and execute personalized training plans. It offers precise timers, automatic weight adjustments, and progress tracking. Seamlessly syncs across Apple devices and integrates with Apple Health.
- Unlimited training plan creation
- Precise workout timer
- Automatic weight adjustments
- Apple Watch integration
- Detailed statistics and muscle overviews
- PDF export of progress
- Apple Health integration
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Ditch the clipboard — KBuddy is your digital workout companion for Kieser Training. Whether on iPhone, iPad, Apple Watch, or Vision Pro: your training plan is always with you. *Why KBuddy?* • Create and manage unlimited training plans • Precise timer with countdown, auto-stop, and pace control • Automatic weight adjustments based on duration or reps achieved • Train both sides together or independently • Live Activity shows your current workout on the Lock Screen • Apple Watch app with Ultra Action Button support • iCloud sync across all your devices *Track Your Progress* • Detailed statistics and muscle overviews • PDF export with weights, pace, settings, and progress changes • Control training reminders — never miss a scheduled session • Apple Health integration *Built for Your Workout* • Siri voice output during training • Sound and haptic feedback for phase changes • Dynamic Type for optimal readability • Create custom exercises • Returning after a break? Adjust all weights by percentage in one tap • Data backup and easy import from KBuddy 7 KBuddy runs on iPhone, iPad, Apple Watch, and Vision Pro. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: KBuddy 9 at 92% against Zehus App's 33%. KBuddy 9 also leads on update cadence (every 3 weeks vs every 2 months). Zehus App's advantage is in-app purchases (none vs 12) and iOS requirement (15.6 vs 18.0). On price, ads and device support 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. KBuddy 9 sells 12 in-app purchases, starting at $0.99 per 7 days. Zehus App asks for nothing beyond the download.
Zehus App ships an update every 2 months, KBuddy 9 every 3 weeks. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.
| Parameter | Zehus App | KBuddy 9 |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.5 (2 ratings) — better |
| Positive reviews | 33.3% of reviews | 92.0% of reviews — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Apple Watch | iPhone, iPad, Apple Watch, Vision Pro |
| Requires iOS | 15.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 61 MB | 73 MB |
| Age rating | 4+ | 4+ |
| Developer | ZEHUS Spa | Oleg Mueller |
Customer experience
Zehus App
KBuddy 9
In-app purchases
Zehus App
No in-app purchases
KBuddy 9
- Unlock Pro - Weekly$0.997 Days
- Unlock Pro - Weekly - Family$1.997 Days
- Unlock Pro - Monthly$1.991 Month
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- Unlock Pro - Monthly - Family$2.991 Month
- Unlock Pro - Yearly$17.991 Year
- Unlock Pro - Yearly - Family$24.991 Year
- Small Tip$1.99
- Medium Tip$3.99
- Big Tip$9.99
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- Very Big Tip$24.99
- Unlock Pro$49.99
- Unlock Pro - Family$89.99
