Last reviewed: November 13, 2026 · By the RaceYear team · Checked November 13, 2026
Short answer: Pick Wehrs Machine’s Circle Track App if you already own WM Bluetooth Load Sticks and want direct hardware-to-app load graphing inside Wehrs Machine’s ecosystem. Pick RaceNight if you want an offline-first setup binder for any dirt, asphalt or kart class, an AI Crew Chief that learns from your past setups, and lap-based part life tracking through RacePrep.
Key takeaways
Disclosure: RaceYear builds RaceNight and RacePrep. All Circle Track App details come from CircleTrackApp.com and public App Store and Google Play listings checked on November 13, 2026.
| Feature | RaceNight | Circle Track App (Wehrs Machine) |
|---|---|---|
| Best for | Racers wanting fast offline setup sheets, AI tuning recommendations and lap-based maintenance | Dirt modified and late model teams using Wehrs Machine Bluetooth Load Sticks |
| Hardware Bluetooth pairing | Works with any brand of scales, gauges or manual load sticks (no proprietary hardware required) | Direct Bluetooth pairing with WM Bluetooth Load Sticks |
| AI Crew Chief | Yes (analyzes your historical setup sheets, scales and track notes) | No AI tuning assistant |
| Offline pit reliability | 100% offline setup logging on iOS and Android | Mobile apps for iOS and Android plus web portal |
| Maintenance & parts | Includes RacePrep in RaceNight Pro for component lap counters, checklists and free crew access | Built-in maintenance task schedules and part-number reorder lists |
| Published pricing | $3.99/mo ($39.99/yr) RaceNight AI; $12.99/mo ($99.99/yr) RaceNight Pro; 14-day free trial | Subscription / license key via CircleTrackApp.com; lightweight Circle Track Tuning app ~$1.99/mo |
Wehrs Machine builds suspension components, birdcages, J-bars and setup tools that fill dirt modified and late model pits every weekend. Their standout digital advantage is hardware integration: if your shop uses WM Bluetooth Load Sticks to measure compressed suspension loads and smash numbers, Circle Track App captures and graphs those readings directly without typing numbers by hand.
It also stores part numbers alongside car specs, which makes reordering heim joints, brackets or suspension hardware straightforward after a crash.
Most grassroots teams mix and match tools across brands: Longacre or Intercomp scales, an analog or digital load stick, a QuickCar stagger tape and a tire pyrometer. RaceNight stays completely hardware-agnostic and optimizes for rapid manual or quick-pick entry in dark pits with zero cell signal. You can still record load-stick and smash measurements right alongside cross-weight, panhard bar heights and shock clicks, then ask the AI Crew Chief which adjustment calmed down corner-exit wheelspin the last time the track slicked off.
For maintenance, pairing RaceNight Pro with RacePrep goes beyond simple calendar reminders by counting actual laps run on every component from engines and transmissions down to hubs and rod bolts, while letting your crew members join the team on their own phones for free.
Yes. RaceNight supports custom and class-specific fields for 4-link angles, pull bars, lift bars, shock travel, bump stops and load-stick measurements, even if you measure with a non-Bluetooth gauge.
No. RaceNight works with any scale pad, stagger tape or pyrometer you already own in your trailer.
Yes. When the car owner subscribes to RacePrep or RaceNight Pro, invited crew members get free access on iOS and Android to run weekly checklists and update shared parts shopping lists.
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