VE table editing
Read, edit, temporarily write, burn, and verify the primary VE table with live operating data and cell-level controls.
// Production validation complete · Available now on the App Store
Tune your MicroSquirt® from your iPhone.
No laptop. No phone cable.
GhostTune brings full VE, ignition, and AFR table editing, live data, and guarded ECU writes to iPhone and iPad. An independent app, verified on MicroSquirt® hardware running MS2/Extra 3.4.4.
GhostTune iOS price: $35 USD. Production validation is complete · GhostTune v1.0 is now available on the App Store · Local WiFi is required for live ECU communication
MicroSquirtVerified hardware
3.4.4MS2/Extra firmware
WiFiLocal connection
iPhone + iPadSupported devices
No accountLocal-first operation
// Need the verified wireless hardware?
Pair GhostTune with GhostBridge GB-01.
GhostBridge is the Crux Resolve WiFi-to-RS232 bridge designed and verified for the published GhostTune + MicroSquirt / MS2/Extra 3.4.4 workflow. It creates the direct local WiFi link without a router or cloud service.
iPhone / iPad → local WiFi → GhostBridge GB-01 → MicroSquirt
// Product preview
See GhostTune in action.
A short look at the GhostTune workflow, from launch and live data to table editing and built-in guidance.
The Reel opens on Facebook only after you choose to watch, keeping this page lightweight.
// App screenshots
See the workflow.
Actual GhostTune screens covering setup, live monitoring, and ECU configuration.
// New platform · Android beta testing
GhostTune is coming to Android.
Android development now includes Bluetooth Classic SPP, BLE UART, WiFi, and USB-C OTG serial connectivity. These connections are in beta testing; the USB OTG implementation is a read-only pilot and a public Android release has not been announced.
Looking for an Android MicroSquirt / MS2/Extra tuning app? See the current beta transport and compatibility details before choosing an adapter.
// Capabilities
Professional tuning tools without a laptop.
Every screen is designed around a real tuning workflow rather than a desktop interface compressed onto a phone.
Ignition and AFR tables
Edit supported ignition and AFR target tables using profile-defined addresses, scales, and guarded write paths.
Live ECU dashboard
Monitor RPM, TPS, MAP, coolant temperature, AFR, intake temperature, battery voltage, and ignition advance.
Startup and calibration
Purpose-built screens for cranking, priming, after-start enrichment, warm-up, sensor calibration, idle, and related setup.
Tune files and backups
Save, compare, export, and restore supported tune data while keeping a known-good backup available.
Ghost Guide
Contextual in-app guidance explains screens, parameters, safety considerations, and common tuning concepts.
Connection diagnostics
Inspect connection health and communication behavior before relying on the link for ECU changes.
Demo Mode
Explore the complete interface with simulated data before connecting to live hardware.
Guarded write workflow
Writes use coordinated polling pauses, response validation, burn sequencing, re-reading, and verification with interruption handling.
// Setup
A direct local connection.
GhostTune communicates with the ECU through a WiFi-to-RS232 bridge. There is no cloud relay and no cable attached to the iPhone or iPad.
Connect the bridge
Attach a compatible bridge to the ECU diagnostic serial port and provide the bridge with power.
Join its WiFi network
Connect the iPhone or iPad to the bridge’s local access point in device settings.
Verify compatibility
GhostTune identifies the ECU profile and keeps unsupported write paths blocked.
Read, edit, and verify
Back up the tune, make supported changes, and use the guarded temporary-write or permanent-burn workflow.
// Need the verified wireless hardware?
Pair GhostTune with GhostBridge.
GhostBridge v1.0 (GB-01) is the Crux Resolve WiFi-to-RS232 bridge designed and verified for the published GhostTune + MicroSquirt workflow. It creates the local WiFi connection GhostTune uses without requiring a router or cloud service.
// Compatibility
Verified means tested.
GhostTune does not apply one ECU’s addresses, scales, or write behavior to another platform.
| ECU / firmware | Status | Notes |
|---|---|---|
| MicroSquirt hardware · MS2/Extra 3.4.4 firmware | Verified | Production validation completed for communication, reads, guarded writes, burns, alerts, restoration, protocol handling, and recovery workflows. |
| Other ECU platforms or firmware versions | Not supported | Remain blocked until profile constants, communication, writes, burns, and safety behavior are independently verified. |
Independent compatibility statement: Third-party product and project names are used only to identify the hardware and firmware tested with GhostTune. Crux Resolve LLC and GhostTune are not affiliated with, endorsed by, or sponsored by the owners or developers of those third-party products or projects.
// Common questions
GhostTune FAQ
Yes. GhostTune is built for iPhone and iPad and the current release is production-validated with MicroSquirt hardware running MS2/Extra 3.4.4. Live ECU communication uses a compatible local WiFi-to-RS232 bridge.
Yes. GhostTune provides its tuning interface directly on iPhone and iPad. For the verified live setup, the Apple device connects over local WiFi to a compatible RS232 bridge attached to the ECU.
The released iPhone and iPad app uses a verified local WiFi-to-RS232 bridge. GhostTune for Android is in beta testing with Bluetooth Classic SPP, BLE UART, and USB-C OTG serial paths; these Android combinations are not yet production-verified. Read about the Android beta.
The current release is verified with MicroSquirt hardware running MS2/Extra 3.4.4 firmware. Only configurations explicitly listed by Crux Resolve should be treated as supported.
GhostTune checks the result of supported ECU changes and reports an interruption or mismatch instead of presenting the operation as successful. A known-good backup remains essential because no software can eliminate every power, wiring, hardware, or firmware risk.
Yes. Demo Mode lets you explore the interface and simulated live data before connecting to an ECU.
No. ECU communication, tune files, and engine data remain on your device and local WiFi connection unless you deliberately export or share a file.
Not in the current release unless a configuration is explicitly listed on the GhostTune compatibility information. The current verified configuration is MicroSquirt hardware running MS2/Extra 3.4.4.
GhostBridge v1.0 (GB-01) is the Crux Resolve hardware designed and verified for the published workflow. Another WiFi-to-RS232 bridge must still meet the communication requirements of the supported configuration.
GhostTune Android is in beta testing, not publicly released through Google Play. Bluetooth SPP, BLE UART, WiFi, and USB OTG are being evaluated. USB OTG uses a read-only pilot; see Android features, compatibility and updates.
// Available now
GhostTune for iPhone and iPad · $35 on the App Store.
GhostTune is available for iPhone and iPad for the verified MicroSquirt and MS2/Extra 3.4.4 configuration. GhostTune is priced at $35 USD on the App Store. Follow the App Store for the final charge. Use the optional form below for product updates, new demos, and customer-use tips. Formspree processes the form as explained in the Privacy Policy.
// Next step
Ready to move forward?
Choose the product that fits your job, or email Crux Resolve directly if you want a compatibility check, setup help, or a recommendation before ordering.