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Choose Bikerly if you want a free, no-install place to keep a maintenance log and you're happy setting service intervals yourself — at £4.99 once for Pro, nothing in this category costs less. Choose Componentry if you want the app to tell you what needs attention and when: service alerts that ship today, predictive wear modelling, native iOS and Android apps, and direct Strava, Wahoo, Garmin, and Hammerhead integration.
Bikerly is refreshingly unfussy. There is nothing to install — it opens in a browser on any device — and the path from sign-up to first logged service is about as short as it gets. Logging work and tracking component distance from Strava both do what they say, service history is there, and the free tier covers two bikes. Pro is a one-time £4.99 payment rather than a subscription, which is a rider-friendly way to price a small product and rare in this category. It is built by one developer who rides, and the focus shows.
Bikerly counts distance against the components you have logged and leaves the interpretation to you. Componentry models what that distance did to them: chain power loss in watts, a lifespan drawn from your terrain, weather, and riding intensity, and a predicted replacement date. Bikerly's roadmap mentions notifications 'personalised to your usage', which points the same way — but it describes a feature that has not shipped, and no method is published.
Bikerly's FAQ is direct about this: today it gives you the log and the distance so you can determine your own service schedules, and automatic alerts based on service intervals are described as a planned feature for a future release. Componentry sends alerts now — per component, adjusted for how and where you actually ride, and delivered before a part is past its useful life. If Bikerly ships alerts, this row changes.
Bikerly connects to Strava, and Strava is the only ride source it names. If your rides record on a Wahoo, Garmin, or Hammerhead head unit, they reach Bikerly only by passing through Strava first. Componentry connects directly to all four, so the distance behind your wear numbers never depends on one platform staying in the middle.
Bikerly is a web app, and says so plainly: there is no need to install it from app stores. It is not a progressive web app either, so there is no home-screen install and no dependable push channel. Componentry ships native iOS and Android apps alongside the web app, which is what lets a reminder reach you instead of waiting for you to open a tab.
Bikerly tracks the parts you log; Di2, AXS, and EPS batteries are not among them. Componentry monitors mechanical wear and electronic shifting battery levels in one place, so a flat rear derailleur is one less thing to discover mid-ride.
| Feature | Componentry | Bikerly |
|---|---|---|
| Predictive | ||
| Chain power loss, in watts | ||
| Predictive wear modelling | ||
| Predicted replacement date | ||
| Race-day readiness simulation | ||
| Integrations | ||
| Strava | ||
| Wahoo | ||
| Garmin | ||
| Hammerhead | ||
| Real-time sync | Not documented | |
| Wear tracking | ||
| Component-level tracking | ||
| Multi-dimension wear (distance + time + duration) | Distance only | |
| Weather-enriched wear calculation | ||
| Electronic shifting battery tracking | ||
| Indoor/outdoor wear differentiation | Not documented | |
| Maintenance & history | ||
| Maintenance alerts | ||
| Component swap tracking | Not documented | |
| Service history & notes | ||
| Multi-bike management | ||
| Bike fit measurements | ||
| Purpose-built for maintenance | ||
| Platforms | ||
| Native iOS | ||
| Native Android | ||
| Web app | ||
| Language & units | ||
| Interface languages | 9 languages | English only |
| Choose your own units | Not documented | |
| Notifications | ||
| Push notifications | ||
| Email notifications | Not documented | |
| Feature | Componentry | Bikerly |
|---|---|---|
| Free tier | 2-month free trial | |
| Monthly | $4.00/month | — |
| Annual | $40.00/year | — |
| Lifetime | — | £4.99 |
| No credit card required |
Bikerly is the cheapest option in this comparison and it is not close: a free tier with ads, and Pro at £4.99 once. Componentry is a subscription, and for a rider who wants a searchable logbook and nothing more, that gap is hard to argue with. What the subscription buys is the work Bikerly currently leaves to you — service alerts that ship today, predictive wear modelling, four direct provider integrations, native apps, electronic shifting battery tracking — and the ride ingestion and verification behind them. Componentry's trial runs 2 months with no credit card, so making the comparison costs nothing.
There is no data lock-in to fight. Connect your Strava, Wahoo, Garmin, or Hammerhead account, add your bikes, and log each component once with its current mileage. From that point every ride updates your components automatically — nothing to migrate, nothing to maintain by hand.
Service alerts that ship today. Four provider integrations. Native apps. Predictive wear.
Start your 2-month free trial. No credit card required.