Before Adding New iPhone Widths, I Had Gemini Write Out the Branches I Already Had
Adding three new screen widths to four apps turned into an extraction job, not a rewrite. Here is why I let Gemini pull the branch table out of the source and kept every pass/fail decision in deterministic code.
Building AI-Powered iOS and Android Apps with the Gemini API — Image Recognition, Voice Analysis, Chat, and Monetization
Architecture patterns, cost optimization, and monetization for adding image recognition, voice analysis, and AI chat to iOS/Android apps with the Gemini API — updated with Gemma 4 routing and the mandatory API key restriction change.
Integrating Gemini 3.2 Pro Function Calling into iOS/Android Apps: Production Design Patterns
A practical guide to integrating Gemini 3.2 Pro Function Calling into iOS and Android apps. Includes working SwiftUI, Kotlin, and Python code, plus production patterns proven in a real indie wallpaper app — cost, latency, staged rollout, and regression testing.
Three Weeks After Moving Firebase from CocoaPods to SPM with Gemini 3 Pro
Notes from migrating Firebase dependency management from CocoaPods to Swift Package Manager across my indie iOS apps. Where Gemini 3 Pro helped, where it did not, and how the setup felt after three weeks in production.
Why Firebase AI Logic Returns 403 When Calling Gemini from iOS — And How to Fix It
Firebase AI Logic (formerly Vertex AI in Firebase) often returns 403 PERMISSION_DENIED when calling Gemini from an iOS app. Here is how to isolate the three real causes — App Check enforcement, disabled APIs, and missing Blaze billing — based on hands-on device testing.
Localizing App Store Keyword Fields with Gemini 2.5 Flash — A Month of Notes Across 40 Apps
Operational notes from a month of using Gemini 2.5 Flash to draft the 100-character App Store keyword field across 40 wallpaper apps and several locales — CJK character counting, deduping against the title, prohibited terms, per-locale quirks, and what actually moved the needle.
Two Months of Turning App Store Connect Daily Sales into a Slack Digest with Gemini 2.5 Flash
Notes from two months of running App Store Connect Sales/Trends data through Gemini 2.5 Flash and posting a short morning digest to Slack. Why Flash beat Pro for this job, how AdMob and store revenue stopped colliding, and what a single 'normal/check' label changed.
Why Gemini API Streaming Drops on iOS After Backgrounding — and How to Fix It
When your iOS app receives a streaming response from Gemini API and the user briefly switches to another app, the stream often goes silent forever. Here's how URLSession actually treats long-lived HTTP, and the smallest change that brings reliability back.
Running In-App Help Translation on Gemini 2.5 Flash for Three Months — An Indie Developer's Notes
After three months running my iOS and Android in-app help through a Gemini 2.5 Flash translation pipeline, here are the operational notes — when to fall back to Pro, how glossaries help, and the small lift it added to AdMob revenue.
Automating App Localization QA with the Gemini API: A Structured-Output Pipeline That Catches Translation Drift Early
Lessons from running 14-language localization across a 50M-download personal app portfolio, distilled into a production-ready Gemini 2.5 Pro structured-output evaluation pipeline that catches translation drift before users do.
Apple Vision Framework × Gemini API: Hybrid Image Recognition — Cutting Wallpaper App Cloud Inference Costs by 70%
How I built an on-device prefilter with Apple Vision Framework to cut Gemini Vision API calls by more than half in my iOS wallpaper app. Real cost, accuracy, and latency numbers, with the gotchas an indie developer hits along the way.
Running NotebookLM and Gemini Deep Research in Parallel for a Firebase SPM Migration: Two Weeks of Notes
Notes from two weeks of running NotebookLM and Gemini Deep Research side by side, while researching the CocoaPods-to-SPM migration of an iOS wallpaper app portfolio with 50M+ cumulative downloads.