# Smart Kiitös Oy

> Finland-based software development company specializing in iOS app development, AI integration, and full-stack product engineering. Founded 2018, based in Helsinki. Y-tunnus: 3231458-1.

Smart Kiitös Oy is a one-person consultancy run by Lemon Xie. We build iOS apps, integrate AI into products, and provide technical consulting. We also ship our own indie apps. Languages: English, Chinese, Finnish.

## About

- [About the founder](https://smartkiitos.com/about/): Lemon Xie — 10+ years iOS, MSc from University of Tampere, co-founded Mooova (acquired 2023).
- [Detailed info for LLMs](https://smartkiitos.com/llms-full.txt): Full company details, services, products, portfolio, and contact.

## Services

- [iOS & Mobile App Development](https://smartkiitos.com/#services): Native iOS with Swift, SwiftUI, UIKit. Local-first architecture, App Store optimization.
- [AI Integration](https://smartkiitos.com/#services): Core ML, Apple Foundation Models, Claude API, OpenAI. Privacy-first on-device and cloud AI.
- [Full-Stack Development](https://smartkiitos.com/#services): Backends, REST/GraphQL APIs, databases, cloud infrastructure.
- [Technical Consulting](https://smartkiitos.com/#services): Code reviews, architecture audits, tech due diligence, team mentoring.

## Products

- [Second Brain](https://smartkiitos.com/secondbrain/): AI memory companion for iOS. On-device classification, semantic search, weekly reflections. Free + Pro ($4.99/mo).
- [NoDiary](https://smartkiitos.com/nodiary/): Minimalist daily diary for iOS. Mood tracking, photos, iCloud sync. Free, zero third-party SDKs.
- [Ashglow](https://smartkiitos.com/ashglow/): Async social app — write thoughts into a bonfire, receive sparks from strangers. Available on the App Store.
- [Fed?](https://smartkiitos.com/fed/): Pet feeding tracker for iOS. One tap to mark meals, family sync, widgets, medication reminders. Free + Pro ($9.99/yr). Available in English, Chinese, Spanish, Japanese.
- [Symptio](https://smartkiitos.com/symptio/): Health symptom tracker for iOS. Record symptoms in 15 seconds, discover patterns, share reports with your doctor. Local-first, zero data collection, HealthKit integration. Available on the App Store.

## Blog

- [Local-first iOS with SwiftData and CloudKit](https://smartkiitos.com/blog/local-first-ios-swiftdata-cloudkit/): Hard-won lessons on conflict resolution, migration gotchas, and sync reliability from shipping two production apps on SwiftData + CloudKit.
- [Using Claude API in a Swift App](https://smartkiitos.com/blog/claude-api-swift-ios/): Model routing between Haiku and Sonnet, streaming responses in SwiftUI, and keeping API costs under control in a consumer iOS app.
- [Zero-SDK iOS Analytics](https://smartkiitos.com/blog/zero-sdk-ios-analytics/): Why we removed every third-party SDK from our apps, what we use instead, and how it affects App Store review and user trust.
- [Adding AI to Your iOS App: What It Actually Costs and Takes](https://smartkiitos.com/blog/ai-ios-app-cost/): A clear-eyed look at the real costs of integrating AI into an iOS app — API fees, on-device vs cloud trade-offs, development time, and ongoing maintenance.
- [Hiring a Remote iOS Developer in Europe](https://smartkiitos.com/blog/hire-ios-developer-europe/): Practical guidance on finding, vetting, and working with remote iOS developers in Europe — contracts, time zones, rates, and red flags.
- [From Idea to App Store in 90 Days](https://smartkiitos.com/blog/idea-to-app-store-timeline/): A week-by-week breakdown of what it actually takes to go from concept to a live App Store listing — design, development, review, and the surprises in between.

## Optional

- [Second Brain Privacy Policy](https://smartkiitos.com/secondbrain/privacy/)
- [Second Brain Terms of Service](https://smartkiitos.com/secondbrain/terms/)
- [NoDiary Privacy Policy](https://smartkiitos.com/nodiary/privacy/)
- [Ashglow Privacy Policy](https://smartkiitos.com/ashglow/privacy/)
- [Ashglow Terms of Service](https://smartkiitos.com/ashglow/terms/)
- [Fed? Privacy Policy](https://smartkiitos.com/fed/privacy/)
- [Fed? Terms of Service](https://smartkiitos.com/fed/terms/)
- [Fed? Help & FAQ](https://smartkiitos.com/fed/help/)
- [Symptio Privacy Policy](https://smartkiitos.com/symptio/privacy/)
- [Symptio Terms of Service](https://smartkiitos.com/symptio/terms/)