OBD Tally
THOMAS L JANUS Utilities iPhoneiPadiPod touch
OBD Tally is a free Utilities app for iPhone and iPad by THOMAS L JANUS. Requires iOS 26.4. Updated October 22, 2026.
- Price
- Free
- on the App Store
- Size
- 9 MB
- Age 4+
- Updated
- Oct 22
- 2026 · v1.2
Screenshots
About OBD Tally
OBD Tally is a customisable OBD-II dashboard, data logger, and diagnostics companion created by a Ford Everest V6 owner and shared for other drivers and enthusiasts. A built-in browser for community vehicle profiles from the OBDb project now lets it work with a far wider range of makes and models. Built for and tested with the Veepeak OBDCheck BLE+ scanner. It may also work with other ELM327-compatible Bluetooth Low Energy adapters, but compatibility cannot be guaranteed across every vehicle, adapter, or ECU. Connect to your vehicle to view live sensor data, build personalised dashboards, monitor important values, investigate diagnostic trouble codes, and record drives for later review. Make the dashboard your own • Create multiple dashboard pages for different driving or diagnostic situations. • Choose from gauges, graphs, bars, numeric readouts, temperature displays, and status indicators. • Configure names, units, ranges, colours, warning levels, and critical thresholds. • Add low-value alerts for parameters such as fuel level or pressure. • Apply value smoothing to reduce noisy readings. • Replace raw values with custom labels—for example, transmission positions. • Choose compact or expanded tile layouts. Choose from a large library of vehicle profiles Browse and import profiles from the open-source OBDb repository, a community-maintained collection of signal definitions for a large variety of makes and models. Pick your vehicle, import its profile, and start viewing manufacturer-specific data without building anything by hand. Combine multiple profiles on one vehicle and edit any profile or PID afterwards. A default Ford Everest V6 3.0L profile is also included. Manufacturer-specific data varies by model, year, engine, ECU calibration, and market, so review and validate imported PID definitions against your own vehicle. Community profiles may be incomplete. Can't find your vehicle? Use the AI prompt generator to prepare a detailed prompt for creating a vehicle-specific CSV template. Paste it into your preferred AI assistant, review the result, and import the CSV. You can also import profile files directly. Record and review your drives • Interactive charts and sparklines. • Route and location information when location recording is enabled. • Trip summaries and individual data-point inspection. • Configurable recording intervals and PID selection. • Session archiving, backup, restore, and optional iCloud synchronisation. Alerts, diagnostics, and CarPlay Create alert rules for the values you care about and see warning or critical conditions on your dashboard. Read and view diagnostic trouble codes reported by the vehicle. CarPlay provides a simplified view of selected live data, alerts, connection status, and recording controls where supported. Built by an enthusiast OBD Tally is not professional workshop software, a certified diagnostic platform, or a replacement for qualified mechanical advice. OBD-II values—particularly manufacturer-specific PIDs and calculated results—may be incomplete, unsupported, or inaccurate depending on the vehicle and adapter. Always validate important readings independently, and never configure or operate the app while driving. Vehicle profile data courtesy of the OBDb community (CC BY-SA 4.0).
What’s new
Version 1.2 · Updated October 22, 2026
What's New in Version 1.2 OBDb vehicle database - Browse OBDb from Settings > PID Profiles > + to find and download a ready-made profile for your vehicle from the open OBDb community database. OBDb JSON files can also be imported alongside CSV. - Enter your vehicle's model year during import to switch off signals that do not apply to it. - Value maps from OBDb appear as readable labels on tiles and in CarPlay, for example gear 1 shown as P. - Each signal's suggested poll interval is used, so slow values do not hold up the rest. - Update a profile in place from OBDb without losing your tiles, alerts or recordings. - Vehicle data from OBDb (github.com/OBDb), CC BY-SA 4.0. Undo deletes - Deleted a parameter or a whole profile by mistake? Tap Undo within 5 seconds and everything comes back, including tiles, CarPlay rows, alerts and vehicle assignments. CarPlay - Customise each CarPlay row: rename it, choose Numeric or Bar, and turn on Show Min / Max to see this drive's high and low. - Bar rows can turn green, amber or red using each parameter's warning and critical thresholds. - Row icons now follow your app colour theme. Ranges and defaults - Standard parameters and the built-in Ford Everest profiles now use realistic ranges, so gauges and bars show movement. Ranges you have already edited are left as they are. - Restore deleted built-in profiles from Settings > PID Profiles. - Restore a built-in profile's original parameters, formulas, ranges and thresholds. - Reset standard parameters on a vehicle to their defaults: ranges and thresholds, polling, value labels and display formats. - Copy thresholds between profiles when the same parameter appears in more than one. Dashboard and sessions - A cleaner landscape dashboard with a slim header, leaving more room for your tiles. - Recorded sessions open much faster, even long drives. Charts, the route map, playback and CSV export load in the background. Reliability - Steadier Bluetooth connection, with fewer stuck "Connecting" states and smarter reconnects. - Fixed a blank dashboard after scanning for parameters. - Safer recordings: the end of a drive is always saved, and you are told if anything cannot be saved. - Trouble codes containing letters, such as hybrid P0Axx codes and most U and B codes, are now read correctly. - Alerts no longer flicker around a threshold, and turning one on asks for notification permission. - PID tools and trouble code scans wait until recording stops, so sessions have no gaps. - More reliable iCloud sync when several devices update at once. - Fixed a freeze when editing a tile with the keyboard open.
App privacy
The developer, THOMAS L JANUS, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
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