Helsinki, Finland · since 2018

Your senior development partner — iOS, web, and AI.

Smart Kiitös Oy is a Helsinki software consultancy run by Lemon Xie. We take on outsourced development and technical consulting for clients worldwide — partnerships running since 2016, with seven apps of our own in the App Store as proof of craft.

Start a project What we do
Services

What services does Smart Kiitos offer?

Outsourced software development and technical consulting — senior, mobile-first, AI-capable. Based in Finland, working with clients globally.

iOS & Mobile Apps

Over 10 years of native iOS development with Swift, SwiftUI, and UIKit — from concept to App Store. For Android delivery or cross-platform reach, we work with Kotlin, React Native, or Flutter as the project needs. Local-first architecture, clean MVVM, accessibility, and App Store optimization included.

AI Integration

Integrate AI into your products with a privacy-first approach. On-device ML with Core ML and Apple Foundation Models, cloud AI via Claude and OpenAI APIs, and custom NLP pipelines. We make AI practical, not gimmicky.

Web & Full-Stack

End-to-end product development — marketing websites, web apps, backends, REST and GraphQL APIs, databases, and cloud infrastructure. From a one-page launch site to a production product backend.

Technical Consulting

Code reviews, architecture audits, tech stack selection, and AI feasibility studies. Whether you need technical due diligence for an acquisition or team mentoring to level up your developers, get expert guidance first.

How we work

Three ways to work with us

From a long-term outsourced development team to a one-off expert review — pick the engagement that fits, or start small and grow from there.

Team Extension

We join your product as an outsourced development team — senior hands that don't need managing. Sprint by sprint, month after month: our two longest client partnerships have run since 2016 and 2017.

Project Delivery

A scoped build from spec to App Store release: design, development, QA, launch, and handover. You get working software and a clean codebase your own team can carry forward.

Consulting & Audits

Short, sharp engagements: code review, architecture audit, tech-stack selection, AI feasibility, technical due diligence. You get a clear written report with recommendations you can act on.

Proof

Our own apps, live on the App Store

Seven iOS apps built and shipped under our own name — where we test new frameworks and AI before they reach client work. Download any of them: this is the quality bar your project gets.
Second Brain — AI memory companion

Second Brain

AI memory companion. On-device classification, semantic search, weekly reflections.

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NoDiary — minimalist daily diary

NoDiary

Minimalist daily diary. One entry per day, mood tracked by sheep, photos, iCloud sync.

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Ashglow — async social app

Ashglow

Async social. Write thoughts into a bonfire, receive sparks from strangers. No chat, no profiles.

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Fed? — pet feeding tracker

Fed?

Pet feeding tracker. One tap to mark meals, family sync, widgets, medication reminders. 4 languages.

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Symptio — health symptom tracker

Symptio

Health symptom tracker. Record in 15 seconds, discover patterns, share clear PDF reports with your doctor.

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Ping — daily check-in for solo living

Ping

Daily check-in for people who live alone. Tap once to share how you feel; quiet safety net only when needed.

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In the Name of the Park — collect the parks you walk into

In the Name of the Park

Walk Helsinki, collect parks as pixel-art cards with tri-lingual poems. No streaks, no feed. Free on the App Store.

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Co-founded Mooova — an instant transport & bulky-waste app shipped to 18 cities across Sweden, Germany, and Spain. Acquired in 2023.

Contact

Let's work together

Whether you need a development partner or have a project in mind, we'd love to hear from you.
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Email

info@smartkiitos.com

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Location

Finland, EU
Working with clients globally

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Company

Smart Kiitös Oy
Finnish registered company

FAQ

Frequently asked questions

Common questions from prospective clients.
What technologies do you specialize in?
We specialize in native iOS development with Swift, SwiftUI, and UIKit. For AI, we work with Core ML, Apple Foundation Models for on-device intelligence, and cloud APIs like Claude and OpenAI. We also have deep experience with local-first architectures using SwiftData and CloudKit.
Do you work with international clients?
Yes. Smart Kiitös is based in Finland but we work with clients globally. Our team is fluent in English, Chinese, and Finnish, making cross-border collaboration seamless.
What is your typical engagement model?
We prefer long-term consulting partnerships over one-off projects. Our two longest client relationships started in 2016 and 2017 and continue to this day. This depth of collaboration produces better code, better products, and real trust.
Can you help integrate AI into an existing iOS app?
Absolutely. We can add on-device ML using Core ML and Apple Foundation Models for zero-latency, private inference — or integrate cloud AI APIs like Claude for more complex reasoning. Our approach is always privacy-first: user data stays on-device whenever possible.
Do you also build your own products?
Yes. We've shipped seven iOS apps under our own name: Second Brain (AI memory companion), NoDiary (minimalist daily diary), Ashglow (async social), Fed? (pet feeding tracker, 4 languages), Symptio (health symptom tracker), Ping (daily check-in for solo living), and In the Name of the Park (a pixel-art park-collecting game). Building our own products keeps our skills sharp and lets us experiment with new frameworks and AI before bringing them to client work.
How fast can you start?
Usually within 2–4 weeks for new engagements. Active client work has priority on schedule, so capacity varies. If you have a hard deadline, mention it in the first email — we'll tell you honestly whether we can hit it before signing anything.