“On-device” inventory – preloads, setup flows (OOBE), OEM app stores, native system placements, and lock-screen experiences, lets brands meet Android users when they’re already primed to install or act. The good news for advertisers is you don’t need dozens of one-off OEM deals anymore. A new crop of aggregators packages this supply with optimization, measurement, and brand-safety guardrails. Below is a practical buyer’s guide that puts OEMAD alongside other major routes: Digital Turbine, Unity Aura, Moloco, Xiaomi, Huawei Petal Ads, Glance (InMobi), plus multi-OEM specialists like AVOW and Appnext and shows how to fold them into your 2025–26 media plan.
Why on-device is surging, and why aggregators matter
OEM rails capture store-level intent: users are installing apps during unboxing or browsing an OEM store, which shortens the path impression – install – first open and typically improves early retention versus generic in-app display. The ecosystem has matured: Digital Turbine’s latest quarter showed revenue up 11% YoY with On-Device Solutions the growth engine, a public signal that supply and demand are both scaling. Unity’s Aura product markets integration on 2B+ devices and ~450M MAU, bringing OOBE and lifecycle touchpoints under one roof. Aggregators turn these rails into a single buying workflow with predictable pacing, billing, and measurement.
The main aggregator routes (and what each is best for)
OEMAD (orchestration layer)
Use OEMAD as your central switchboard: one brief, harmonized naming/UTMs, and unified post-install event schema across OEM partners. OEMAD’s role is to standardize value-based objectives (CPE/CPO/D7 ROAS), normalize attribution windows with your MMP, and automate creative/placement hygiene (frequency, deep-link consistency). (Internal orchestration description; pair with the routes below for supply.)
Digital Turbine (preloads, setup, discovery)
Digital Turbine aggregates preloads, app selection during setup, and OEM/carrier discovery moments—great for utilities, fintech onboarding, and casual titles where first value happens fast. Use CPE/CPO or D7 ROAS and compare country-level revenue-per-device as you scale. Public prints (Q1 FY26) confirm momentum and improving profitability, useful as a proxy for stable, investable supply.
Unity Aura (device-lifecycle touchpoints via telco/OEM partners)
Aura from Unity reaches users at “hello” (unboxing) and through lifecycle prompts, positioned to drive installs, cross-sell, and re-engagement. Unity cites 2B+ integrated devices, ~450M MAU, and positioning around peak install intent in the first 48 hours post-setup—ideal for value-based buying when you want intent moments without stitching carrier/OEM contracts yourself.
Moloco ↔ Xiaomi (programmatic access to GetApps, system native, lock screen)
In June 2025, Moloco and Xiaomi announced a global partnership: programmatic access to GetApps (Xiaomi’s overseas app store), in-app/native, and lock-screen inventory. Treat GetApps like a conversion-optimized landing path and keep routing consistent—Xiaomi’s manual lets you choose the install channel: GetApps or Google Play, which helps reduce drop-off by matching user preference. Start with PMPs for control, then open to oRTB once ROAS stabilizes.
Huawei Petal Ads (AppGallery search + display and wider Huawei surfaces)
Petal Ads offers searchable AppGallery placements (plus broader Huawei ecosystem inventory). If you’re consolidating OEM buys, you can run Petal direct or route it through partners in your stack; either way, align creative to store intent and map SKUs to localized product pages.
Glance (InMobi) lock-screen feed
Glance packages a high-reach, native lock-screen surface built with leading Android OEMs—an app-less moment before unlock. Use simple, visual hooks and deep links that “resume task” on open; Glance supports performance objectives and brand KPIs, with day-parting and frequency controls.
Multi-OEM specialists: AVOW and Appnext
AVOW aggregates alternative app stores and OEM placements across regions (they cite 1.5B+ monthly active users across OEM platforms), useful if you want managed service across multiple vendors. Appnext publishes OEM playbooks and runs discovery experiences across several ecosystems—handy for pairing ASO-style store work with paid bursts.
Buying strategy: turn “OEM” into a value-based lane, not a one-off test
Start with two Tier-1 markets per OEM (e.g., India/SEA for Xiaomi; MENA/EU pockets for Huawei) and launch three lines: setup/preload aggregator (Digital Turbine or Aura), OEM store/programmatic (Moloco↔Xiaomi or Petal Ads), and lock-screen (Glance). Standardize creative on “promise → payoff in one tap” and deep-link the first open to the advertised task (scan, book, play, KYC). For Xiaomi, pick the promotion channel (GetApps vs Play) that best matches your user base and measurement plan. Let OEMAD orchestrate pacing, frequency, and naming so downstream reporting stays comparable.
Measure like a realist: send post-install events (first open, onboarding complete, purchase/KYC, level complete) to your MMP and the buying platform so algorithms can optimize to CPE/CPO/D7 ROAS instead of CPI. Normalize attribution windows across SRNs, DSPs, and OEM channels; expect some timing deltas by partner. Keep geo/PSA holdouts to prove incrementality—OEM store paths often show lower uninstall and stronger D1/D7, but you should validate in your own data.
Creative and landing rules that reliably lift ROAS
Mirror store/system UI in ad design to reduce cognitive friction; use five-to-ten-second demos and outcome-first copy (“Scan a document in 3 seconds,” “Open an account in minutes”). Maintain strict frequency on lock-screen and system surfaces. For store placements, treat product pages like conversion landers with localized titles, short descriptions, and updated screenshots; pair paid bursts with store featuring programs where available to compound rank. Xiaomi’s buyer docs explicitly support store-specific routing, which helps keep the journey consistent.
Bottom line
On-device media has graduated from “experimental” to strategic. With Digital Turbine and Unity Aura for setup-and-lifecycle intent, Moloco↔Xiaomi and Petal Ads for store-level demand, Glance for lock-screen reach, and AVOW/Appnext for multi-OEM coverage, advertisers can now buy OEM surfaces the same way they buy any scaled channel: value-based, measurable, and brand-safe. Put OEMAD in the middle as your orchestration layer, standardize events and windows, and hold every line to incremental CPO and D7 ROAS. The reward is exactly what on-device is known for: shorter paths to value, stronger early retention, and steadier unit economics across Android growth.
