Pairing Gemini API with Apple FoundationModels (iOS 26): An On-Device-First Hybrid Routing Notebook
Running iOS 26 FoundationModels alongside Gemini API as a hybrid stack for a wallpaper app's poem-from-image feature: routing decisions, full Swift code, and one week of latency and cost numbers.
Building a Wallpaper Variation Pipeline with Gemini 3.2 Flash Image Output — How an Indie Developer Splits the Work with Imagen 4 and Cut Monthly API Cost
An indie developer's working notes on combining Gemini 3.2 Flash Image Output with Imagen 4 to power a wallpaper-variation feature. Includes Python code, cost numbers, and three production traps from running wallpaper apps with 50M+ downloads since 2014.
Building Automatic Wallpaper Category Classification with Gemini Vision
An indie developer shares how they implemented automatic wallpaper image classification with the Gemini Vision API — including accuracy results, real pitfalls, structured-output tips, and a cost comparison with GPT-4o Vision.
I Rebuilt My Wallpaper App's Recommendation Engine Using Gemini Function Calling
A hands-on account of integrating Gemini Function Calling into a wallpaper app with 50M+ downloads. Covers schema design, cost estimation, and how I compared Gemini against Claude and GPT-4o for this use case.
Maximizing Revenue in Indie iOS Wallpaper Apps with AdMob + Gemini API
A decade of indie app development reveals how to balance AdMob revenue against Gemini API costs. Learn architecture patterns, cost control strategies, and Freemium gate implementation for AI-powered wallpaper apps.