Alignment Pro vs R2 GearCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Alignment Pro
This utility app uses your phone's sensors and a tape measure to collect wheel alignment data. It offers simple on-screen guidance, allows for custom vehicle specifications, and includes features like slop compensation and detailed summaries of alignment issues.
- Wheel alignment data collection
- On-screen instructions
- Custom vehicle specifications
- Slop compensation
- Alignment summary with implications
- Uses phone sensors and tape measure
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Utilized you phones internal sensors and a tape measurement to collect wheel alignment data with simple on-screen instructions. Industry standards can be used for specification or you can manually update to your specific vehicles alignment specification easily found on the web. Features include, vehicle slop compensation to account for un-even driveways, and detailed alignment summary displaying the issues that can occur due to your specific out of tolerance conditions to help explain to the customer the implications of the out of tolerance specification. Disclaimer: Not for commercial/business use. Results may vary based on device sensors and usage conditions. Reading the instructions carefully and following them is essential for accurate measurements. This app provides measurements for informational purposes only. By purchasing, you acknowledge that the developer is not liable for damages, or decisions made based on the app's output.
R2 GearCalc
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Gear ratio calculator for drift and race cars. Pick your gearbox, final drive and tire size and instantly see: • wheel speed in every gear at your shift RPM • RPM drop on every upshift • a clear RPM vs speed sawtooth chart • speed per 1000 RPM for every gear WINTERS QUICK CHANGE BUILT IN The full Winters Performance 8500-series 10-spline gear chart is included: 67 spur gear sets with 4.12, 4.57 and 4.86 ring & pinion options. Ratios are computed from exact tooth counts. Star the sets you own to build your inventory and swap between them in one tap to compare setups. 269 GEARBOX PRESETS Factory ratio presets from popular manual and automatic transmissions (ZF GS6-53DZ selected by default), or enter a manual final drive ratio for any other setup. TIRE SIZE YOUR WAY Enter the outside diameter in millimeters or a metric size like 225/45R17, with common presets one tap away. BUILT FOR THE TRACK High-contrast dark interface with bright accents that stays readable in direct sunlight. No account, no ads, no data collection — everything stays on your device and works offline.
Screenshots
Verdict
The clearest difference is price: R2 GearCalc at Free against Alignment Pro's $4.99. Alignment Pro's advantage is device support (3 vs 1). On ads, in-app purchases and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
R2 GearCalc is free to download; Alignment Pro costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Alignment Pro | R2 GearCalc |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Fortnightly | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 16.4 |
| Further details — not scored | ||
| Size | 31 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | Jeffrey Andrews | Yury Rak |
In-app purchases
Alignment Pro
No in-app purchases
R2 GearCalc
No in-app purchases
Questions
Is Alignment Pro free?
Is R2 GearCalc free?
Do Alignment Pro or R2 GearCalc have ads?
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