RC Pit Calc Pro vs REDS ESC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RC Pit Calc Pro
This app offers a suite of specialized calculators for RC car enthusiasts. It helps with gear ratios, suspension geometry, corner weights, oil viscosity, fuel usage, and top speed estimations. It also stores data for multiple cars and includes helpful guides.
- Gear ratio calculation
- Suspension geometry analysis
- Corner weight balancing
- Shock oil viscosity adjustment
- Fuel usage and pit stop planning
- Top speed estimation
- Oil blending for custom viscosity
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The RC gear ratio calculator trusted by racers and bashers — plus every other calculator you need at the track, in one free app. GEAR RATIO CALCULATOR Calculate gear ratio, final drive ratio (FDR), and rollout from your pinion and spur. Enter your gears "before and after" to see the real impact of gear and tire changes as a percentage (e.g. +2.5%), so you know exactly how much speed and motor load to expect. Built-in transmission data for hundreds of popular RC cars. PINION RECOMMENDER Not sure which pinion to run? Pick your car, enter your motor, and get a starting pinion from how racers in your class actually gear, plus the range they run. Built from real race setups across hundreds of classes. TOP SPEED CALCULATOR For electric cars with brushless motors: enter basic info about your setup and get a solid estimate of your car's top speed. PILL INSERT / SUSPENSION GEOMETRY CALCULATOR Find your toe, anti-squat, kick-up, roll center, and track width. Supports all popular cars that use pill inserts, and works with custom suspension mounts. CORNER WEIGHT CALCULATOR Enter your car's corner weights and get the full breakdown: front-rear, left-right, and cross weight/wedge. SHOCK OIL TEMP & VISCOSITY CALCULATOR Racing on a hotter or colder day than usual? See exactly what shock oil to run to keep the same car feel. OIL BLENDING CALCULATOR Don't have the right shock oil with you? Blend the thick and thin oils you already own — this calculator gives you the exact proportions for your target viscosity. SHOCK DAMPING CALCULATOR Compare two piston and oil combinations before you build the shock: roll damping, bump pack and jump pack side by side. Supports tapered pistons and dual hole sizes, with presets for common 1/10 and 1/8 shocks plus custom sizes. FUEL USAGE CALCULATOR For nitro racers: fuel burn per minute in race conditions, how much you need to finish long mains, and how many pit stops to plan. FEATURES - Remembers your entries for each car - Built-in data (spur gear, transmission ratio) for hundreds of popular cars - Walkthroughs and detailed help for every calculator FROM SO DIALED Want tuning help beyond the math? Our RC Setup App gives you pro setup sheets for 600+ cars, race logging, and an AI mechanic — find "RC Setup App" on the App Store.
REDS ESC
This app allows iOS users to wirelessly adjust settings on compatible Reds Racing Speed Controls via Bluetooth. Make real-time modifications to your setup anywhere, anytime, eliminating the need for programming cards and trips back to the pits.
- Bluetooth connectivity
- Real-time adjustments
- Data logging
- No programming card needed
- Mobile accessibility
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The iOS App for Smartphones, now with Data Logging! Now you can connect via Bluetooth your Reds Racing Speed Control ZX GEN2 and Z8 GEN3 to your iOS Smartphone and make adjustments, anywhere, at any time. The REDS ESC App gives you the edge with mobility and unparalleled accessibility; plug in, tune, and drive. The REDS ESC App lets you make your adjustments on the fly, no programming card, no running back to the pits. And it’s still FREE!
Screenshots
Verdict
The clearest difference is rating: RC Pit Calc Pro at 4.4 against REDS ESC's 3.0. RC Pit Calc Pro also leads on ratings volume (24 vs 2). REDS ESC's advantage is review sentiment (100% vs 60%) and in-app purchases (none vs 3). On price, ads and device support 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
Both are free to download. RC Pit Calc Pro sells 3 one-off in-app purchases. REDS ESC asks for nothing beyond the download.
RC Pit Calc Pro holds the better App Store score, 4.4 against 3.0. That said, the two scores are not equally well evidenced: RC Pit Calc Pro has 24 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 60% of RC Pit Calc Pro's written reviews are positive against 100% of REDS ESC's, so the app with the better star average is not the one people write more warmly about.
| Parameter | RC Pit Calc Pro | REDS ESC |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (24 ratings) — better | 3.0 (2 ratings) |
| Positive reviews | 60.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 24 — better | 2 |
| Update frequency | Every 5 days | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 58 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Degree3, Inc. | REDS Racing Srl |
Customer experience
RC Pit Calc Pro
REDS ESC
In-app purchases
RC Pit Calc Pro
- Lifetime backer$2.00
- Lifetime Backer$4.00
- Lifetime Backer$4.99
REDS ESC
No in-app purchases








