Best Bike Maintenance App in 2026: Componentry vs Geer vs ProBikeGarage vs WatchMy.Bike

Best bike maintenance app 2026 is a search a lot of cyclists are making right now, and the answer depends almost entirely on which platforms you ride with and how many bikes you manage. There are now seven credible dedicated options: Componentry, ProBikeGarage, Geer, WatchMy.Bike, Velo Buddy, MainTrack, and Bikerly. Each targets a different kind of cyclist.

This comparison covers what each app actually does, who it suits, where it falls short, and how the pricing stacks up. We will be direct about what competitors do well. There is no benefit to dismissing them; you can read their app store pages yourself. What matters is finding the right match for how you ride.

Quick Verdict: Bike Maintenance App Comparison

Best for most serious cyclists: Componentry — multi-platform, deepest integration set, the only real predictive modelling in the category. Best for Strava-only casual riders on a budget: Geer — cheapest subscription, simple, well-designed. Best established alternative: ProBikeGarage — proven, affordable, solid feature set. Best if you want it for free: MainTrack — genuinely free, no subscription, iOS only. Lowest-commitment option: Bikerly — free with ads, or a one-time £4.99 for ad-free.

Who Each App Is For

Before the feature breakdown, it helps to identify which type of cyclist each app is actually built for. The wrong match will frustrate you regardless of feature count.

Geer suits the Strava-only rider who wants a clean, no-fuss maintenance tracker. If you have one or two bikes, ride exclusively with Strava, and do not use electronic shifting, Geer covers the fundamentals at the lowest subscription price in the category.

ProBikeGarage suits the established cyclist who wants a proven solution with a large user base and native apps at a low monthly cost. ProBikeGarage states it has over 160,000 cyclists using the app, and it has the track record that newer apps lack. The Strava-only limitation is a real constraint, but for riders who only log via Strava, it works reliably.

WatchMy.Bike suits the tech-forward cyclist who wants to showcase their bikes publicly and track cost-per-kilometre analytics. The 30,000+ bike model catalogue, receipt storage, and public profile pages serve collectors well. It is also the only app here with a real free tier for casual use, not just a trial. The web-only delivery is a real limitation for day-to-day use.

Velo Buddy suits cyclists drawn to its AI-forward marketing and video-based bike-fit coaching who don't need Wahoo, Garmin, or Hammerhead as a real data source (those platforms only receive exported workouts from Velo Buddy, they don't feed data into it). It is native-only with no web app, and pricing has since moved from AUD to USD.

MainTrack suits the iPhone-only rider who wants proven, free component tracking with no subscription anywhere in the app. Built and maintained by a single developer since January 2019, it has real strengths most competitors lack: usage tracked across distance, time, and ride count together, and components that carry independent usage history when moved between bikes. There is no Android version and no web app, and it connects to Strava only.

Bikerly suits the cyclist who wants the lowest possible barrier to entry: no account friction beyond a browser tab, free with ads, or a one-time £4.99 payment (not a subscription) for an ad-free experience across up to 100 bikes. Automatic service alerts are on its roadmap but not shipped yet, so today it is a maintenance log you check, not one that proactively tells you anything.

Componentry suits multi-device cyclists: anyone using Wahoo, Garmin, or Hammerhead alongside Strava, riders with electronic shifting (Di2, AXS, or EPS), and anyone managing multiple bikes with components that move between them. It is also the only app in this comparison that models where a component's wear is actually headed, not just where it has been. If you only use Strava, do not have electronic shifting, and just want a simple mileage log, the price premium over Geer or MainTrack requires justification.

App-by-App Feature Analysis

Geer

Geer's positioning is sharp: "Bikes don't come with a check engine light. Until now." It tracks chains, cassettes, brake pads, tires, rotors, and bottom brackets, with Strava integration for automatic ride sync and both indoor and outdoor ride differentiation for wear calculation.

Geer's homepage displays a "Best Cycling App 2026" badge with no issuing body named anywhere on the site. Whatever it's worth as a signal, it's a self-awarded badge, not third-party recognition.

Where Geer falls short: It is a PWA (progressive web app), not a native app. You can add it to your home screen, but it is not distributed through the App Store or Play Store. Wahoo and Garmin integrations are listed on Geer's public roadmap but have not shipped. There is no electronic shifting battery tracking, and the free tier is limited to two bikes and five components. For a cyclist running Di2 or AXS, Geer has a hard gap it cannot fill.

Price: €20/year (or €2/month). One of the most affordable dedicated options in the category.

ProBikeGarage

ProBikeGarage is the established player. It states on its homepage that it has over 160,000 cyclists using the app, and with native iOS and Android apps plus a $2.99/month price point, it has one of the largest user bases among dedicated maintenance trackers. It supports multiple wear dimensions (distance, moving time, elapsed time, and ride count), multiple setups per bike for indoor/outdoor differentiation, and component swap tracking with service notes. It also offers document and photo storage on its premium tier, up to 10GB, a feature Componentry doesn't have.

The app is actively maintained: it shipped 2026 updates including elevation-gain stats for bikes, components, and services, and its Android listing holds a 4.83/5 rating from roughly 1,900 ratings.

Where ProBikeGarage falls short: Strava-only integration is the defining limitation. Riders who use Wahoo or Garmin cannot automatically sync rides from those platforms. There is no electronic shifting battery tracking, no weather enrichment on activities, and no bike fit tracking.

Price: $2.99/month or $24.99/year. Solid value for what it delivers.

WatchMy.Bike

WatchMy.Bike takes the widest feature scope of any competitor. Cost-per-kilometre analytics, a 30,000+ bike model catalogue, interactive component diagrams, receipt and warranty document storage, public "bike build" profile pages, an AI assistant integration via MCP (Claude, ChatGPT, Gemini), and CSV export. The technical ambition is real.

WatchMy.Bike also restructured its pricing since earlier in 2026: there is now a free-forever tier (Steel, up to 3 bikes) alongside two paid tiers with monthly billing, Alloy at €3.25/month or €39/year for up to 10 bikes, and Carbon at €5.75/month or €69/year for up to 50 bikes.

Where WatchMy.Bike falls short: It is web-only. There are no native iOS or Android apps, though it can be added to a phone's home screen as a browser shortcut. For a product built around daily check-ins and maintenance awareness, not being in the App Store is a material gap. Distance-only wear tracking misses the multi-dimension wear calculation that serious cyclists need. WatchMy.Bike markets "AI-powered maintenance predictions," but its own help documentation describes plain distance thresholds (for example, "replace chain every 3,000 km") rather than any modelled or personalised prediction.

The social showcase positioning, public bike profiles and build sharing, may resonate with collectors but dilutes the maintenance utility message for the rider who simply wants to know when to replace their chain.

Price: Free (Steel, 3 bikes) or €3.25/month (Alloy, 10 bikes) or €5.75/month (Carbon, 50 bikes). The only app in this comparison with a genuine free tier and a paid monthly option together.

Velo Buddy

Velo Buddy launched in 2024 with an AI-forward maintenance angle: marketed wear prediction, an AI chat companion, an adaptive training coach, and video-based bike fit coaching. Native iOS and Android apps are available, with no web app.

Velo Buddy's pricing has moved from Australian dollars to US dollars since earlier in 2026. Current App Store pricing is $4.99/month, $29.99/year, or $29.99 as a one-time lifetime purchase. That makes it the most expensive monthly dedicated subscription in this entire comparison, ahead of Componentry's $4.00/month.

Where Velo Buddy falls short: Ride data ingestion comes from Strava and Ride with GPS only. Garmin, Wahoo, and Hammerhead appear on Velo Buddy's marketing as integrations, but they function as export targets for Velo Buddy's own workouts, not as sources of your ride data. There is no electronic shifting battery tracking. Velo Buddy's App Store listing markets "Watt Loss insights" and AI-driven wear prediction, but neither is accompanied by any stated methodology, units, or worked example anywhere public, so treat these as described capabilities rather than demonstrated ones.

Price: $4.99/month, $29.99/year, or $29.99 lifetime. A genuine free tier covers one bike with the AI features included.

MainTrack

MainTrack is the longest-running dedicated maintenance app in this comparison: built and maintained by a single developer, Christiano Gontijo, since January 2019, and still shipping updates in 2026. It has no company, no funding, and no user-count marketing, but its ratings run 4.6 to 5.0 across every storefront checked, with reviews consistently praising the developer's responsiveness.

It genuinely has no subscription. Every feature is free, with no documented limit on bikes or components; the only in-app purchases are an optional tip jar. Two features stand out even against paid competitors: usage is tracked across distance, moving time, and ride count simultaneously, and components carry their own usage history when moved between bikes, with a start date recorded for each assignment. It also supports four interval types, including ride-count-based intervals (for example, "lube chain every 4 rides"), which is unusual in this category.

MainTrack does show a projected next-service date, but the mechanism is simple: it divides a threshold you set yourself by your historical average usage rate. It cannot adjust for terrain, weather, or riding intensity, because none of that data enters the app.

Where MainTrack falls short: It is iOS only (including iPad, Apple Silicon Mac, and Vision Pro), with no Android release and no web app. Ride data comes from Strava only, plus manual entry, so if a ride isn't tagged with the right bike on Strava, the mileage lands in the wrong place or nowhere. There is no electronic shifting battery tracking, no weather enrichment, and no condition-based wear modelling of any kind.

Price: Free, with no subscription and no feature limits. The cheapest option in this entire comparison by a wide margin.

Bikerly

Bikerly is a solo-developed, browser-only maintenance log: no native apps, and no installable web-app shortcut either, since it ships without a service worker or app manifest. Its own help documentation is direct about this: "Bikerly is a web application, so there is no need to install it from app stores."

The free tier covers two bikes with ads. Its "Early Bird Lifetime Deal," Bikerly Pro, is a one-time £4.99 payment (not a subscription) covering up to 100 bikes ad-free.

Where Bikerly falls short: Automatic maintenance alerts are not shipped. Bikerly's own help documentation says plainly that alerts based on service intervals are "a planned feature we're working on for a future release." Today, Bikerly logs your maintenance history and mileage, and you decide when to act on it, rather than the app telling you. It is Strava-only, distance-only for wear tracking, and has no electronic shifting battery tracking.

Price: Free with ads, or £4.99 as a one-time payment for the ad-free Pro tier. The lowest lifetime cost of any paid option in this comparison.

Why Componentry Wins for Multi-Device, Predictive-Tracking Cyclists

Componentry's differentiation now rests on two things, not one: the integration stack, and predictive modelling that no competitor in this comparison ships.

Multi-Provider Integration

Every other app in this comparison is Strava-only, or Strava plus one adjacent platform for export (Velo Buddy). Componentry connects directly to Strava, Wahoo, Garmin, and Hammerhead. If you use a Wahoo ELEMNT or a Hammerhead Karoo, your ride data lives in that ecosystem before it syncs anywhere else. If you use a Garmin Edge, it routes through Garmin Connect. Componentry ingests all four directly, rather than relying on Strava as the only intermediary.

For riders who use multiple platforms across their training, perhaps Strava for social, Garmin for navigation, Wahoo or Hammerhead for structured training, Componentry is the only maintenance tracker in this comparison that works with the full setup.

Personalised, Predictive Wear Modelling

This is the newest and largest gap between Componentry and everything else in this comparison. Componentry models what a component is likely to do, not only what it has already done.

Chain power loss estimates the watts currently being lost in the drivetrain, broken into three separately-tracked causes: contamination, lubrication state, and chain stretch, so you can see exactly how many of those watts are recoverable by cleaning and relubing. It's a physical model with coefficients anchored to published lab friction data, not a fitted or trained model, and it is available on every Componentry account, including riders who only connect Strava.

For riders syncing at least 10 rides of FIT-file data from Garmin, Wahoo, or Hammerhead, Componentry also produces a personalised lifespan for each component family, modelled from your actual weather exposure, terrain, riding intensity, descending, and volume, rather than a flat manufacturer figure. That feeds a predicted replacement date, a real calendar date rather than a distance countdown, and a race-day simulation that projects every component's wear at a target event date.

No other app in this comparison ships anything comparable. WatchMy.Bike and Velo Buddy both market AI-sounding language around prediction, but in both cases their own documentation either describes plain fixed thresholds or provides no stated methodology at all. MainTrack shows a projected date, but it's arithmetic on a threshold you set yourself, with no way to account for how or where you actually ride.

Electronic Shifting Battery Tracking

Componentry remains the only app in this comparison that tracks electronic shifting batteries. Di2 and AXS batteries deplete at variable rates depending on shifting frequency, temperature, and charge history, and a dead battery mid-ride is a planning failure, not a mechanical one. None of the other six apps compared here track this at all.

Native Apps vs. PWA vs. Web-Only

Componentry, ProBikeGarage, Velo Buddy, and MainTrack all ship native apps (MainTrack iOS-only). Geer is a PWA. WatchMy.Bike and Bikerly are web-only. For cyclists who discover apps through the App Store or Play Store, three of the seven options compared here are effectively invisible.

Pricing Comparison

The honest pricing picture: Componentry at $40/year is not the cheapest option, and it's the only paid option here without any free tier at all. MainTrack is genuinely free with no limits. Geer, WatchMy.Bike's Steel tier, and Bikerly's ad-supported tier all cost nothing to start.

The justification for Componentry's price is what those free and cheaper options don't do: four-provider integration, electronic shifting battery tracking, and predictive modelling that produces a personalised lifespan and a real replacement date rather than a fixed mileage threshold. One avoided drivetrain replacement, $150 to $400 for chain, cassette, and potentially chainrings, pays for several years of Componentry.

Verdict

The best bike maintenance app in 2026 is the one that connects to how you actually ride, and increasingly, the one that tells you what's coming rather than just what's happened.

Choose Componentry if you use Wahoo, Garmin, or Hammerhead alongside Strava, ride with electronic shifting, or want a personalised, modelled prediction of when a component will actually need attention rather than a fixed mileage number. Native apps, real-time sync, multi-dimension wear tracking, and predictive modelling deliver the most complete maintenance picture available in this comparison.

Choose Geer if you ride exclusively with Strava, do not have electronic shifting, and want a simple, well-designed experience at a low subscription price.

Choose ProBikeGarage if you want the most established option with a large user community, native apps, and solid core features at $2.99/month.

Choose MainTrack if you're on iOS only, ride Strava only, and want proven component tracking with no subscription at all.

Componentry is free to start; no credit card required for the two-month trial. If you have Strava, Wahoo, Garmin, or Hammerhead connected, the first sync will show you exactly what you have been missing.

Further Reading

Componentry Resources:

• Predictive Component Tracking: How Componentry Models Wear Before It Happens — the personalised wear modelling referenced throughout this comparison, explained in depth
• Drivetrain Power Loss: The Watts You Can Get Back Without Buying a New Chain — how the chain power loss model works and what it's anchored to
• Electronic Shifting Battery Tracking: Know Exactly When Your Di2 or AXS Will Die — the feature no competitor in this comparison has built
• Tracking Maintenance Across Multiple Bikes — for the multi-bike, multi-device riders this comparison keeps coming back to