Tachwire
Maksim Pogozhii
No ratings yetUtilitiesAges 4+
Screenshots
About this app
Tachwire reads your car through a Bluetooth LE OBD adapter and puts what the dashboard keeps to itself — oil and gearbox temperatures, boost, gear, a hybrid's battery, on a BMW even oil pressure — on the car's screen, laid out the way you want. When something runs critically hot, it says so out loud. A SCREEN OF YOUR OWN IN THE CAR • Tiles of any size on a grid fitted to your car's display. • Pages for the road, the track and the warm-up, a button apart. • Arrange it on the phone, start from a layout in the Gallery, or edit on the car's screen while parked. • A Live Activity on the Lock Screen, in the Dynamic Island and, on iOS 26, in CarPlay. YOUR CAR AND YOUR DRIVES • Car: your car pictured in its factory colour; tank, battery, tyres and the last drive at a glance. • Drives: a diary by day — city, highway or track, with alerts, pulls and records. • A drive's page: the route, a verdict with its reason, every reading on one time line. • Logbook: records and trends against your car's own usual; ignition timing pull and power by rpm. • Power from the torque the engine reports, never estimated. 0–60 mph or 0–100 km/h, ¼ and ½ mile, timed from the car's speed — on a closed track only. ROAD CAMERAS • Spoken alerts and a map window on the car's screen for speed and red-light cameras, section controls and low-emission zones in Spain, Portugal, Italy, the United Kingdom, Poland, Austria, Belgium, Bulgaria, Norway, the Netherlands, Czechia, Cyprus, Malaysia and Russia. France: danger zones and low-emission zones only, as French law allows. Silent where such alerts are banned. • Off until you turn it on. TRACKS • 535 tracks in 17 countries, or set your own start/finish line. • Laps by session and the gap to your best, on the car's screen too. Runs and laps only on a closed track. • Track guidance in CarPlay: on a circuit, the track map with the next turn, and your braking points once a lap is recorded. A Track map tile for any page. WHICH CARS • BMW, the deepest: G-series from 2018 and F-series, recognised from the VIN — oil temperature and pressure, gearbox temperature and gear, boost, torque and power, a plug-in hybrid's e-motor and battery, a diesel's DPF and AdBlue. • MINI (2014–2024) and the Toyota GR Supra are read the way a BMW is. • First support, readings vary by model: Mercedes-Benz, Porsche, Ford, Toyota and Lexus, RAM, Dodge, Jeep, Chrysler, Land Rover, Jaguar, Audi, Volkswagen, SEAT, CUPRA, Mazda and Honda. Renault, Dacia and Alpine are recognised. • Any other car with an OBD port: revs, speed, coolant, intake, load, often oil temperature and boost. A tile stays empty rather than show a wrong number. Make by make: tachwire.app/cars. WHAT YOU NEED • A Bluetooth LE OBD adapter: OBDLink CX (the fastest), vLinker, UniCarScan, or an ELM327 BLE clone (slower). Classic Bluetooth and Wi-Fi adapters can't connect to an iPhone. • iOS 18.4 or later and CarPlay, wired or wireless: the app reads the car only while CarPlay is connected. • No adapter yet? Choose "No adapter yet" on the first screen: which one to get, and a demo drive. READ-ONLY, PRIVATE Tachwire only reads live values: no fault codes, no coding, nothing changed in the car. No account, ads or tracking. Drives stay on the phone unless you turn sending on (encrypted, route removed; only laps on a track keep their positions). Crash reports turn off with one switch; usage data only if you agree. GPS runs only during a drive. SUPPORT TACHWIRE Everything in the app is free. Monthly coffee and Monthly burger are optional monthly subscriptions, a thank-you to the developer, with car looks: a playful picture for the Car card and your pick of its trim and colour; every figure stays your car's. Auto-renews monthly; cancel in Apple Account settings at least 24 hours before renewal. Terms of Use: tachwire.app/terms. Privacy Policy: tachwire.app/privacy. Tachwire is independent and not affiliated with or endorsed by any carmaker. All trademarks belong to their owners.
What's new
Version 0.4.3 · Nov 5, 2026
CarPlay in the instrument cluster, iCloud for your cars and drives, oil pressure against the pump's target, a closer look at the 12 V battery and a session summary on track. • Instrument cluster: in cars that show CarPlay behind the wheel too, 4–6 large readings picked for the moment — warm-up, road or track — with alarms on top. More → Instrument cluster turns it off. • CarPlay screens: every car keeps its own. A car new to the phone gets pages made for it — no Diesel page on a petrol car — and the screen of the car before stays as it was. • iCloud: your cars, CarPlay screens, drive summaries, records and settings are kept in your own iCloud and come back on a new iPhone; drive logs too, if you choose. Comes with the Support Tachwire subscription. • Status: a new block on the Car tab — tyres against each axle's set pressure, the gearbox's own verdict, coolant and washer fluid, an oil dipstick and a service calendar with the distance or months left. • Transmission: a new screen with Gearbox and All-wheel drive tabs — the gearbox's clutch counters and adaptations, the front axle's share of torque, and the drive's before and after. • Siri: ask "How's my car in Tachwire?" — or about the tyres, service, fuel, oil, the 12 V battery and the last drive. • Oil pressure: shown as the pressure itself, with the pump's target as a dashed line on the drive's chart where the engine reports it; a lag is put in words instead of "0.0 bar". • 12 V battery: health and reserve in Ah and a plain "Replacement not needed" from the BMW battery sensor; the voltage at the battery itself after a long stand; far fewer false warnings. • BMW service norms: the 12 V battery and oil pressure are judged by BMW's own limits; tyre pressure is compared with a temperature correction, so a cold morning no longer turns it yellow; the diesel's oil level in mm against the engine's own range; service says "soon" four weeks ahead, as the car does. • Fuel tank: on BMW, the litres come from the tank sender, as the instrument cluster shows them, once the car has proven the reading over a few stops. • Intercooler: judged against your own car's norm in the same conditions. • Track: a session summary — the best possible lap from the session's best sectors, the spread and where the time goes — and a list of corners. • Splits: a CarPlay screen for acceleration runs that comes with the Support Tachwire subscription. One run gives every split at once (0–100, 100–200 km/h, 402 / 805 / 1,609 m), then a timeslip with records to share. Runs gather into sessions, so you see whether you got quicker. • No adapter yet: the first screen says which adapter to get, shows the demo drive and can remind you once. • Car pictures: more BMW lines and trims (3 Series, X3, X6, 7 Series, X7) with new pictures; BMW Individual paint can be picked by hand. Pictures for the CUPRA Formentor and Porsche Cayenne. • BMW and MINI: newer units are recognised — third-generation B48 and B58 engine units, DDE 9.56 diesels, the 7DCT gearbox and current electric BMWs; a MINI John Cooper Works goes by its own name. • BMW F-series tyres: pressures from the car's own tyre pressure unit where the stability control has none. • VW Group, Porsche and Ford: more readings on Audi, VW, Škoda, SEAT and CUPRA, the DSG gearbox's temperature among them; Porsche boost, oil, tyres and gear; Ford 12 V battery, tyres, range, oil life and particulate filter. • Kia and Hyundai: more readings — oil, gearbox, fuel litres, tyres and, on E-GMP electric cars, the high-voltage battery. • BMW: readings come in faster. • Clearer name: "Engine pushed hard" replaces "Engine under load". Support Tachwire, in More, is an optional monthly subscription. Readings, drives and screens stay free; subscribers get iCloud, Splits and car looks.
In-app purchases
The most popular purchases on the App Store.
- Monthly coffeeSubscriptionQAR 9.99 / month
- Monthly burgerSubscriptionQAR 39.99 / month
