In-vehicle vs on-app vs exterior
Highfloor focuses on in-vehicle screens because that's where attention concentrates. The passenger is captive, the screen is in their direct line of sight, and the trip is long enough for sustained exposure.
| Format | Audience window | Attention quality | Best for |
|---|---|---|---|
| In-vehicle screen | Full ride duration (8–22 min) | Captive, sustained | Conversion-window verticals: legal, hospitality |
| On-app (Journey Ads) | App open during ride wait + active ride | Glance-driven, mobile-context | Awareness, app-install, brand recall |
| Exterior (car-top) | GPS-triggered street-level | Brief but high-frequency | Geofenced local awareness |
The conversion window
The under-appreciated insight about rideshare advertising is that the in-vehicle window lands the prospect at the moment a specific case category typically converts. A rider at 1 a.m. on a Friday is in the post-bar window where DUI defense intake spikes. A rider leaving a concert is in the window where the next event ticket gets bought. A rider leaving a restaurant is in the window where the next delivery order gets placed.
Where that timing alignment exists, rideshare is one of the highest-attention OOH placements available. Where it doesn't, rideshare is a generic awareness channel competing with cheaper alternatives — buy a different format.
Creative spec
Rideshare in-vehicle screen ads typically run 15–30 seconds with sound on (the rider can hear the tablet), full-screen, 1920×1080 or vertical 9:16 depending on tablet orientation. The format is more permissive than bar TV because sound is available — but the creative still needs to land in three seconds because the rider can mute or look away. Strong opening visual + clear product identity + supporting message + CTA is the standard structure.
Cost benchmarks
- In-vehicle screen ads: $10–$25 CPM
- On-app Uber Journey Ads: $15–$30 CPM
- Exterior car-top (Firefly): $4–$6 CPM
- Premium dayparts (Fri/Sat 10pm–2am, sports nights): higher
Measurement
Rideshare measurement combines impression-level reporting from the platform (which devices saw the spot, when, where) with foot-traffic attribution via mobile-device-panel data and branded-search lift. For verticals with phone-based conversion (legal call volume, dating-app installs), conversion-event attribution is unusually clean because the conversion device is often the same device the rider was holding during the ride.
Platform comparison
Uber Journey Ads has the largest in-app surface (Uber's user base is significantly larger than Lyft's). For in-vehicle screens specifically, the inventory is more fragmented — Uber's tablet program, Octopus Interactive, Vugo, and others each cover different vehicle pools. Highfloor specs the right mix per campaign rather than committing to a single supply partner.