Supported Features
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VoiceOver
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Voice Control
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Larger Text
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Dark Interface
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Differentiate Without Color Alone
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Sufficient Contrast
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Reduced Motion
Cogbook: Bike Maintenance
Service Log & Chain Wear
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Track component wear, log every service and get smart reminders for all your bikes — road, gravel, MTB and e-bike. The mechanic's workshop, in your pocket.
Cogbook is the maintenance logbook for every bike you own — road, gravel, MTB and e-bike. Track component wear, log every service, and never miss maintenance again. It's the mechanic's workshop, in your pocket.
Most cycling apps track your rides. Cogbook tracks your bike — so you know exactly when your chain, cassette, brake pads, tyres or suspension need attention, before they fail.
THE COMPLETE SERVICE LOG
• Log every service with date, parts, notes and cost
• A full history for each bike — your maintenance, documented forever
• A multi-bike garage: road, gravel, MTB, e-bike and more
COMPONENT WEAR, DONE RIGHT
• Per-component wear gauges (chain, cassette, chainrings, brake pads, cables, tyres) calculated by distance
• An up-to-date component database by brand, with realistic service intervals
• Chain-wear tracking with smart replacement alerts
• Advanced tracking: chain wax & rotation, sealant, suspension hours, full drivetrain — and parts that move between bikes
SMART MAINTENANCE REMINDERS
• Reminders by distance, hours or calendar — per component
• Get alerted before parts wear out, not after
MILEAGE, AUTOMATIC OR MANUAL
• Import your distance automatically or log it by hand — never forced to connect anything
• Apple Health integration for ride distance
E-BIKE READY
• Battery cycles, motor service and manufacturer intervals — the e-bike support other apps ignore
YOUR DATA, YOURS FOREVER
• Reliable iCloud sync across your devices
• Export to CSV and PDF — your records are never locked in
COST INSIGHTS
• See what each bike and component really costs you over time
The service log, your bikes and your data are never paywalled.
COGBOOK PRO
Unlock the full brand component database, advanced wear tracking, complete e-bike support, multi-rider family sharing, and CSV/PDF export.
• Monthly and Yearly plans (Yearly includes a 7-day free trial)
• Or a one-time Lifetime unlock
Subscriptions auto-renew unless cancelled at least 24 hours before the end of the current period. Your Apple ID is charged on confirmation. Manage or cancel anytime in your App Store account settings.
Privacy Policy: https://develak.com/privacy-policy/
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Develak, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
The developer indicated that this app supports the following accessibility features. Learn More
Information
- Seller
- PRIOMAT LLC
- Size
- 6.5 MB
- Category
- Sports
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 43 more
- English, Arabic, Bengali, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Gujarati, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Kannada, Korean, Malay, Malayalam, Marathi, Norwegian Bokmål, Oriya, Polish, Portuguese, Punjabi, Romanian, Russian, Simplified Chinese, Slovak, Slovenian, Spanish, Swedish, Tamil, Telugu, Thai, Traditional Chinese, Turkish, Ukrainian, Urdu, Vietnamese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Cogbook Pro Lifetime $39.99
- Cogbook Pro — Yearly $19.99
- Cogbook Pro — Monthly $3.99
- Copyright
- © 2026 Develak