Gear Ratio Calculator 2 is a bicycle drivetrain simulation tool for road and MTB cyclists to model gear ratios, cadence, and speed.
The App DNA
What makes this app unique?
Users hire this tool to validate component replacement choices before purchase, reducing the cost of trial-and-error in drivetrain upgrades.
For Road bike and mountain bike cyclists looking to optimize drivetrain performance and select replacement parts.
What does it look like?
Key features
Visualizes speed versus cadence across 22 chainwheel, 39 sprocket, and 70 tire combinations.
Computes distance traveled per crank revolution for specific drivetrain configurations.
Toggles display of specific gear positions to identify optimal ratios for replacement parts.
How much does it cost?
Freemium model utilizing in-app purchases to monetize specialized bicycle component data.
Velocity
Dormant developmentperformanceplatform expansionShow more...
The development cadence is effectively dormant, with no releases recorded in the last 8 months. The most recent update was a technical maintenance patch for Android 16 compatibility, and there has been no activity on the iOS platform since May 2025. Given the lack of updates for over 240 days, the app is classified as a zombie project.
Who built it?
ABT Co.
4 apps tracked · Sports
Komado2
Gear Ratio Calculator Lite
Handmade Soap CalculatorUser Sentiment
What do users think recently?
How are ratings & reviews evolving?
Not enough recent reviews to extract reliable themes yet.
Read the full review analysisCompetition
Competitive landscape for Gear Ratio Calculator 2
How's the Sports market?
The app functions as a standalone mechanical utility in a market shifting toward automated, data-synced performance tools. Its lack of platform integration limits its reach compared to competitors like Z5.
Read the market outlookThe rivals identified
Unlock the deeper market read.
Access the full report for freeThe Analyst's Read
Key takeaways for Gear Ratio Calculator 2
Where is it heading?
The cycling utility market is consolidating around platforms that automate data collection and biomechanical fitting. Without moving beyond manual entry, this app will continue to lose relevance to integrated competitors.
- The 1.0 rating on iOS suggests critical stability issues that prevent user adoption, leading to immediate churn.
- Competitors are moving toward AI-driven biomechanical analysis, making manual gear calculators like this one increasingly irrelevant to serious cyclists.
The SWOT
- Granular simulation engine across 131 drivetrain combinations
- Integration with Strava would improve utility
- Automated bike-fit data import
Next best moves
Integrate Strava API because it is the standard for cycling data → increase user retention
+ 1 more prioritized moveThe counter-intuitive read
The app's biggest risk is not its lack of features…
Read the full takeFeature gaps
Strava integration (available in Z5 but missing here) +1
Since the last report: The analysis shifted from identifying a critical launch failure to addressing the product's structural obsolescence against AI-driven and integrated cycling platforms.
Bottom line
The app provides a useful mechanical simulation engine but fails to integrate with modern cycling platforms, so the PM should prioritize API connectivity to prevent total obsolescence against AI-driven competitors.
Unlock 2 critical frictions, 2 market threats, 1 more prioritized move and the analyst’s take.
Access the full report for freeReport last updated