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. Python code, real monthly cost numbers, a perceptual-hash acceptance gate, and three production traps.
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.