Report updated May 25, 2026
Gear Ratio Calculator 2
For road bike and mountain bike cyclists looking to optimize drivetrain performance and select replacement parts.
Gear Ratio Calculator 2 is an established sports app that is free with in-app purchases. With a 1.0/5 rating from 1 reviews, it shows polarized user reception.
What is Gear Ratio Calculator 2?
Gear Ratio Calculator 2 is a bicycle drivetrain simulation tool for road and MTB cyclists to model gear ratios, cadence, and speed.
Users hire this tool to validate component replacement choices before purchase, reducing the cost of trial-and-error in drivetrain upgrades.
Current Momentum
v1.1 · 8mo ago
Zombie- Ships periodic data updates for components.
- Maintains standalone utility model.
Active Nemesis
Fragmented niche
No dominant direct rival identified yet — see Other Rivals below.
Other Rivals
7-Day Rank Pulse 🇺🇸
SportsNo ranking data
Rating Pulse 🇺🇸
What makes this app unique?
What Does It Look Like?
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What Are The 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?
- Free access to core calculation tools
- In-app purchases for additional features or data
Freemium model utilizing in-app purchases to monetize specialized bicycle component data.
Who Built It?
ABT Co.
View Publisher Intel →Enrichment in progress
Publisher profile available very soon
What other apps does ABT Co. make?
Komado2
ユーティリティ
Handmade Soap Calculator
Lifestyle
What do users think recently?
Analysis in progress, available soon
View the full user-sentiment analysis
Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.
What is the competitive landscape for Gear Ratio Calculator 2?
Where is it available?
Localized markets (4)
How's The Sports Market?
How does it evolve in 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.
Rank progression
1 active ranking tracked — 30-day window
Which niche is Gear Ratio Calculator 2 in?
Explore the full Cycling Calculators niche
Every app in this space — 1 tracked, the niche's live rankings, and Marlvel's editorial take on the job-to-be-done.
The rivals identified
Same space(4)
Z5 competes for the same cycling enthusiast audience by providing performance-oriented data analysis and external platform integration.
Differentiators
- Integrates directly with Strava to sync ride data, whereas the target app remains a standalone calculator.
- Provides social-focused export and sharing features that encourage community engagement compared to the target's isolated utility.
This app targets the technical side of cycling preparation, focusing on bike geometry and fit rather than just gear ratios.
Differentiators
- Offers specialized morphology-based bike fitting tools that address physical rider comfort beyond mechanical gear ratio calculations.
- Includes professional-grade PDF export and AirPrint capabilities for physical documentation of bike fit settings.
While focused on a specific discipline, this app competes for the attention of the same sports-oriented user base through club-level engagement.
Differentiators
- Leverages push notifications and news feeds to maintain high user retention through constant organizational updates.
- Provides a community-centric platform with photo galleries that the target app lacks entirely.
This app serves the cycling community by providing organizational tools and club-specific information, overlapping with the target's sports category.
Differentiators
- Features a centralized news feed and important links section to keep club members informed and active.
- Utilizes a high-frequency release cadence to ensure app stability and feature relevance for its specific user group.
New entrants(1)
This newcomer disrupts the cycling utility space by applying modern AI computer vision to solve biomechanical problems.
Differentiators
- Uses on-device AI pose estimation to provide automated biomechanical feedback, rendering manual calculation tools increasingly obsolete.
Compare Gear Ratio Calculator 2 against every rival
All rivals in one side-by-side table — identity, store metrics, ratings & sentiment, and strategic intel — plus a head-to-head page for each.
The outtake for Gear Ratio Calculator 2
Strengths to defend, gaps to attack
Core Strengths
- Granular simulation engine across 131 drivetrain combinations
Critical Frictions
- Manual data entry requirement creates high friction
- 1.0 rating on iOS indicates severe quality issues
Growth Levers
- Integration with Strava would improve utility
- Automated bike-fit data import
Market Threats
- AI-based biomechanical tools render manual calculators obsolete
- Lack of social features limits user retention
What are the next best moves?
Integrate Strava API because it is the standard for cycling data → increase user retention
Competitor Z5 uses Strava integration to capture the same audience.
Trade-off: Pause development of new manual calculation graphs — manual data entry is a declining utility.
Audit iOS stability because of the 1.0 rating → recover user trust
The 1.0 rating on iOS suggests critical bugs or crashes.
Trade-off: Delay all new feature work until the baseline stability is restored.
A counter-intuitive read
The app's biggest risk is not its lack of features, but its manual-entry design in an era where cyclists expect automated data syncing from their existing ride logs.
Feature Gaps vs Competitors
- Strava integration (available in Z5 but missing here)
- Professional PDF export (available in SizeMyBike but missing here)
Key Takeaways
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.
Where Is It Heading?
Declining
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.