Sprocket: Bike Gear Calculator

Sprocket: Bike Gear Calculator

By Linh Phan Nhat Khanh

Sprocket is a bike gear calculator for road, gravel, and MTB cyclists, offering live drivetrain metrics and setup management on iOS.

The App DNA

What makes this app unique?

Cyclists need precise gear-ratio data to plan drivetrain swaps and build custom configurations without relying on trial-and-error part changes.

For Road, gravel, MTB, and touring cyclists who perform their own drivetrain maintenance or build custom bike configurations.

What does it look like?

Key features

Live Drivetrain Calculationsstandard

Calculates gear ratio, gain ratio, gear inches, and speed based on user-input chainring, cog, cadence, and wheel size.

Custom Cassette Entryedge

Allows users to define specific cog sequences for non-standard drivetrain builds.

Saved Bike Setupsstandard

Stores named configurations of chainring, cassette, and wheel size for quick comparison.

Offline-First Architectureedge

Operates entirely without network connection, storing all data locally on the device.

How much does it cost?

subscriptionFree tier with limited accessPremium tier at $9.99/week or $49.99/year

Subscription model anchored at $49.99/year, gating advanced customization and unlimited storage behind a premium paywall.

Velocity

Maintenance developmentnew contentUX improvementsShow more...

The app currently operates on a maintenance cadence, with only one release recorded in the analyzed window. The latest version introduced a comprehensive set of bike gear calculation tools, including live ratio calculators and custom cassette presets. Given that 93 days have passed since the last update, development appears to be in a dormant phase. There is no evidence of ongoing live operations or frequent iterative improvements.

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Who built it?

Linh Phan Nhat Khanh

13+ apps tracked · Sports

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User Sentiment

What do users think recently?

How are ratings & reviews evolving?

App Store
0.00 · 0

Not enough recent reviews to extract reliable themes yet.

Read the full review analysis

Competition

Competitive landscape for Sprocket: Bike Gear Calculator

How's the Sports market?

Sprocket occupies a niche utility space within the Sports category, relying on a subscription model to monetize drivetrain math. The lack of updates for over 90 days suggests a maintenance-mode posture that limits its ability to compete with more active tools.

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The rivals identified

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The Analyst's Read

Key takeaways for Sprocket: Bike Gear Calculator

Where is it heading?

The cycling utility market is consolidating around tools that offer frequent drivetrain updates and community-driven setup sharing. Sprocket's current maintenance-mode posture leaves it exposed to rivals that can iterate on new drivetrain standards faster, which will likely compress its market share over the next two quarters.

  • The three-month development silence suggests a lack of active feature investment, which erodes the competitive edge against more frequently updated cycling tools.
  • The offline-first architecture remains a stable differentiator that protects the core user base from connectivity-related churn in remote riding environments.

The SWOT

Core Strengths
  • Offline-first architecture removes connectivity dependency
Critical Frictions 1 weakness inside
Growth Levers
  • Localized cassette presets for regional racing standards
Market Threats 1 threat identified

Next best moves

1 Pivot

Audit premium paywall conversion because the $49.99/year price point is high for a single-utility tool → increase conversion velocity

The counter-intuitive read

The offline-first design is a retention lever in…

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Bottom line

Sprocket's offline-first utility provides a strong foundation, but the current maintenance-mode cadence leaves the product vulnerable to more active competitors. Pivoting to a more accessible pricing structure would unlock the user funnel and better align with the tool's specialized utility.

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FAQ

Is Sprocket worth paying for if I only need occasional gear math?
Sprocket offers a free tier for basic calculations, but the premium subscription is required for unlimited bike setups and custom cassette entry. Casual users may find the free version sufficient for occasional needs.
Does Sprocket require an internet connection to work?
No, Sprocket is built with an offline-first architecture. All data and calculations are stored locally on the device, allowing for full functionality in remote areas without network access.
What is the main difference between Sprocket and other bike gear calculators?
Sprocket distinguishes itself through an offline-first design and a focus on storing named bike setups, whereas many competitors rely on cloud-based storage or ad-supported interfaces.

Sources

  1. [1] App Store, source

Report last updated

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Sprocket: Bike Gear Calculator, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “Sprocket: Bike Gear Calculator Intelligence Report.” Updated Sep 18, 2026. https://marlvel.ai/apps/sprocket-bike-gear-calculator

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