Estimate your RC car's top speed by inputting details about its gearing, motor, and batteries. Record your estimates and actual speeds to compare different setups.
4.9(23 ratings)
Free
Best apps like CastleLink2
10+ similar apps compared and reviewed
4.1 avg rating
10 free apps
Updated September 2026
Whether you want more options like CastleLink2 or a completely different take on the same concept, our curated list of 10+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.
Top Alternatives to CastleLink2
0.0(0 ratings)
Free
RC Gears by SkyRC Technology Co.,Ltd.
Worth Considering
🔧 Utilities
4.5😊(56 ratings)
Free
This application connects to a specific corner weight system to measure and display the weight distribution of RC cars. Users can view data, calibrate the scale, and adjust settings like auto power-off via Bluetooth. It's designed for precise weight analysis in RC racing.
What We Love
- 👍 Easy to use
- 🚀 Accurate results
- ✨ Clean interface
- ✅ Works smoothly
- 💡 Compact and well-thought-out device
- 💯 Great value for money
- 🌟 Good customer service
- 🔧 Intuitive app interface
- 🚀 Fast connection
- ✅ Reliable performance
- 👍 Well laid out and easy to read
- 🚀 Efficient and simple to use
- ✅ Works as expected
- 👍 Very accurate
- 🌟 Fixes bugs in updates
- 💡 Supports multiple devices (RC cars, planes)
- ✅ Works with different OS versions
- 🚀 Quick setup
- 👍 Practical and useful
- ✅ Good for testing setups
Room to Improve
- 🐛 Glitchy app
- 🐛 App freezing
- 🐛 Bluetooth connection issues
- 🐛 Incompatible with iOS 18
- 🐛 Reduced functionality compared to older versions
- 🐛 Max speed rounded to whole number
- 🐛 Error messages on scales
- 🐛 New update made drag racing unusable
- 🐛 Scales give different readings when moved
- 🐛 Lacks explanation of settings
