SizeMyBike is a mobile bike-fitting utility that calculates bicycle geometry based on six user body measurements.
Product velocity
Dormant
Daily rank 🇺🇸
#73
Sports · paid
Sentiment
2.5
10 reviews
Nemesis
Bike Fast Fit Elite
The App DNA
What makes this app unique?
Users hire the app to avoid the $150 cost of professional bike fitting sessions by using a self-service, morphology-based geometry calculator.
For Beginner cyclists looking to choose the right bike size at purchase and expert riders seeking to optimize their current bike geometry.
What does it look like?
Key features
Calculates optimal geometry for road and mountain bikes using six specific body measurements.
Allows storage and management of bike fitting data for multiple riders.
Generates bike measurement reports in PDF format for email sharing or wireless printing.
How much does it cost?
The app positions itself as a low-cost alternative to $150 professional fitting services.
Velocity
Dormant developmentShow more...
5 versions in history. Development pace: zombie.
Who built it?
User Sentiment
What do users think recently?
The recent review mood reads mixed. Users appreciate simple and instructive bike fitting process helps beginners find their ideal bicycle geometry.
How are ratings & reviews evolving?
What users say, by theme
- Simple and instructive bike fitting process helps beginners find their ideal bicycle geometry
- Inaccurate frame size and component recommendations lead to poor bike fit outcomes for riders
29 of 29 recent reviews analyzed · moderate confidence · Mixed overall
Read the full review analysisUnlock 1 user request, each backed by review evidence.
Access the full report for freeCompetition
Competitive landscape for SizeMyBike
How's the Sports market?
SizeMyBike holds the #91 Paid position in the Sports category. The low review count of 29 suggests a stagnant user base that is not growing despite the low $2.99 entry price.
Read the market outlookThe rivals identified
By Double Dog Studios
This is the only direct competitor that focuses exclusively on the niche of bike fitting and geometry optimization.
- Offers advanced video-based motion analysis for real-time rider position adjustments during the fitting process.
- Provides comprehensive reporting tools that export professional-grade fit data for use by professional bike mechanics.
- Supports detailed saddle and handlebar coordinate tracking which goes beyond simple body morphology measurements.
Unlock the head-to-head verdict: where this rival wins, and where it loses.
Access the full report for freeThe Analyst's Read
Key takeaways for SizeMyBike
Where is it heading?
The bike fitting market is consolidating around tools that offer objective, video-based analysis, leaving static-measurement apps like SizeMyBike exposed. Without a significant technical refresh to support modern hardware, the app will likely continue to lose relevance to more capable, data-driven competitors.
- Frequent application crashes and data loss issues following the latest update erode user trust and drive negative sentiment.
- Lack of compatibility with modern mobile hardware prevents new users from launching the app, effectively stalling acquisition.
The SWOT
- Low-cost alternative to $150 professional fitting services
- Niche-focused morphology algorithm
- Integration with wearable health data
- Expansion into specialized bike categories
Next best moves
Audit and fix PDF export crashes because they are the top-reported stability complaint → improve rating baseline
+ 1 more prioritized moveThe counter-intuitive read
The app's primary risk is not its lack of features…
Read the full takeFeature gaps
Video-based motion analysis (available in Bike Fast Fit Elite)
Since the last report: The app has entered a state of technical decline, with critical stability issues and data loss overshadowing new feature additions.
Bottom line
SizeMyBike provides a low-cost entry point for bike fitting, but its technical instability and lack of modern hardware support threaten its viability. The PM should prioritize stability fixes over new features to prevent further rating decline.
Unlock 3 critical frictions, 2 market threats, 1 more prioritized move and the analyst’s take.
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