GAS – Gumm Advertisement Service

Who It's For

Independent app publishers who want to cross-promote across their own portfolio and sell placements directly, without handing a third-party ad SDK a seat inside their apps.

Problem Solved

Third-party ad networks take a cut, ship tracking SDKs into the binary, and offer no control over what appears next to your own product. GAS replaces that with an ad server owned end to end — every advertiser, campaign, creative, and impression stays in-house.

Business Value

Cross-promotion across the portfolio at zero marginal cost, direct-sold placements with no revenue share, and no third-party tracking SDK in any shipped app. Creatives carry a print-ready variant, so the same campaign runs on a physical flyer with a QR code.

Tech Stack

Laravel 12, MySQL, Bootstrap 5, object-oriented PHP. Public JSON ad-serving API with signed, tamper-evident tracking URLs; full CRUD CMS module behind authentication.

Key Features

Four-level model: advertisers → properties → campaigns → creatives, each independently managed in the CMS.
Slot-targeted serving endpoint resolves the highest-priority active creative for a given app and slot, honoring flight windows and priority weights.
Signed tracking URLs record impression, view, click, and dismiss events without trusting the client.
Multiple creative formats — banner, square, hero, and a 9:16 portrait interstitial — with per-format image fallbacks.
Print-ready high-resolution variant with QR destination, so a digital campaign carries over to physical media.

GAS —

Who It's For

Problem Solved

Business Value

Tech Stack

Key Features