Gear Formula: Calc & Simulator is a visual gear calculator and simulator for mechanical design on iOS.
The App DNA
What makes this app unique?
The app removes the cognitive friction of manual ratio math by providing a visual, real-time simulation environment for drivetrain planning.
For Mechanical engineering students, robotics teams, RC car builders, and DIY hobbyists.
What does it look like?
Key features
Real-time calculation of gear ratios, RPM, and torque across multiple gear families.
Automated system flagging gear setups as balanced or extreme, gated behind the Pro tier.
Storage and export of gear configurations via app links, gated behind the Pro tier.
How much does it cost?
The freemium model gates workflow-critical data management and validation features to monetize power users.
Velocity
Maintenance developmentopaqueShow more...
The app has shipped only one release in the observed window, resulting in a maintenance-tier cadence. With no subsequent updates or feature additions since the initial launch 35 days ago, development appears to be in an early-stage stabilization phase. There is currently no evidence of a recurring update schedule or active feature development pipeline.
Who built it?
Le Minh Tran
3 apps tracked · Utilities
Resin Calculator Master
Wood Project 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 Formula: Calc & Simulator
How's the Utilities market?
Gear Formula occupies a niche utility space for mechanical design, with no updates since its July 2026 launch. The current maintenance-focused cycle limits its ability to compete with more active engineering tools.
Read the market outlookThe rivals identified
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Access the full report for freeThe Analyst's Read
Key takeaways for Gear Formula: Calc & Simulator
Where is it heading?
The mechanical utility market is shifting toward web-based tools that require no installation. Gear Formula's current maintenance-only posture leaves it exposed to these browser-based rivals, necessitating a move toward active feature development to retain its user base.
- The app has remained in maintenance mode since launch, which limits its ability to grow against more active engineering utilities.
The SWOT
- Visual selection flows reduce cognitive load for mechanical engineering learners
- Localized content for robotics and RC car hobbyist segments
Next best moves
Ship a minor feature update because the app has been in maintenance mode for 35 days → re-engage the user base
The counter-intuitive read
The lack of updates is a feature, not a bug…
Read the full takeSince the last report: Development remains in a maintenance-only state 35 days post-launch, with the primary change being a strategic pivot to acknowledge web-based calculators as a direct competitive threat.
Bottom line
Gear Formula provides a clear visual utility for drivetrain planning, but the lack of post-launch updates risks user churn. Activating the development cycle with minor feature additions would demonstrate long-term support and justify the Pro tier's value proposition to power users.
Unlock 1 critical friction, 1 market threat and the analyst’s take.
Access the full report for freeFAQ
Is Gear Formula suitable for professional engineering work?
What features are included in the Pro version?
Does Gear Formula work for robotics and RC car projects?
Sources
- [1] App Store, source
Report last updated