Kelvin Tan

Software Engineer

Kelvin Tan

25 apps shipped since 2016. 9 live today — designed, built, shipped and marketed solo.

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120K+Downloads
·
25Apps shipped
·
2016Building since
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100%Swift & SwiftUI

Apps · 9 live, 3 in review

25 shipped since 2016 — cut down to the 9 live below so each one gets real attention. Three more are built and waiting on App Review.

SOON

Deploy Studio

Ship Releases From Your Phone

Your build is ready and you're not at your desk — Deploy Studio submits the release from your phone, and says plainly what's still missing.

Coming soon Learn more
SOON

Tessera

Your Cards, In Apple Wallet

The loyalty card you never have on you when it counts — Tessera reads it once and puts it in Apple Wallet, barcode and all.

Coming soon Learn more
SOON

Earnings

AdMob & AdSense Revenue

A placement stops earning and nobody tells you for a week — Earnings notices the same day and says which app it's in.

Coming soon Learn more
2026

Bondify

Relationship Habits

The people who matter drift quietly — Bondify tracks who you haven't spoken to in a while, and gives you something worth saying.

DishSpin

What to Eat Wheel

"What do you want to eat?" "I don't know, what do you want?" — DishSpin ends that loop in one tap.

2024

Beam

Learn Thai & Speak It
★ 5.0 (2 ratings)

You've studied Thai for months and the taxi driver still doesn't understand you — Beam fixes the part every course skips.

2022

Provision

Your Complete Financial Toolkit

You're about to sign a 30-year loan and have no idea what it actually costs — Provision shows you before you do.

2020

InstantMessage

No-Save Chat

You need to message someone once and never save their number — InstantMessage gets you there in two taps.

LDS Quotes

Daily Inspiration
★ 4.8 (92 ratings)

Some mornings you need someone else's words before you can find your own — LDS Quotes has one waiting.

Malaysia Pocket

Emergency, Safety & Rights
★ 5.0 (2 ratings)

Something's gone wrong and googling your rights is the last thing you have time for — Malaysia Pocket already has the answer.

LDS Priesthood

Ordinances
★ 4.8 (452 ratings)

You've just been asked to give a blessing and can't remember the exact words — LDS Priesthood has them, right there.

2019

LDS Conferences

Talks & Live Sessions
★ 4.8 (325 ratings)

General Conference started and you're nowhere near a TV — LDS Conferences puts it in your pocket, live.

Experience · since 2016

2022

Software Engineer

MOVE · Full-time
Oct 2022 – Present · 3 yrs 11 mos
Swift SwiftUI Combine Kotlin Multiplatform MVVM-C
  • Ship roadmap features with product and design across a shared Kotlin Multiplatform codebase.

Software Engineer, iOS

Quickget · Full-time
Feb 2022 – Oct 2022 · 9 mos
RxSwift Combine GraphQL SwiftUI Xcode Cloud

Key achievements

  • Migrated the codebase from RxSwift to Combine.
  • Moved the architecture from VIPER to MVVM.
  • Ran the release train every sprint.
2020

Software Engineer, iOS

Astro
Mar 2020 – Feb 2022 · 2 yrs
RxSwift MVVM-C

Key achievements

  • Took My NJOI to 4+ stars across 1,000+ reviews — the highest-rated app in the portfolio.
  • Held 95%+ unit test coverage on My NJOI.
  • Cut Bitrise build time 31 min → 11 min with a local Swift package — write-up.
2018

Software Engineer, iOS

Kaodim
Sep 2018 – Mar 2020 · 1 yr 7 mos
Swift MVVM

Key achievements

  • Migrated the codebase from MVC to MVVM.
  • Doubled unit test coverage, 8% → 16%.
2016

Software Engineer, iOS

DaddyCoding · Indie
Oct 2016 – Present · 9 yrs 11 mos
Swift SwiftUI Firebase RevenueCat StoreKit
  • 25 apps shipped solo — design, build, release and marketing.

Key achievements

  • Malaysia Law 101 — top 5 in Productivity (2020).
  • LDS Priesthood — 4.8 stars from 450+ ratings.
  • LDS Quotes — 55+ active paid subscribers.
  • QuickApp — 3,000+ sessions a month.

How I build

Swift & SwiftUI

Every shipped app, no exceptions — MVVM throughout, one ViewModel per screen.

Firebase

Firestore, Auth, Analytics, Crashlytics and App Check, shared across a multi-app portfolio on the same project where it makes sense.

RevenueCat

Subscription entitlements and paywalls across every app that monetises.

Protocol-first architecture

Services sit behind a protocol so every layer can be faked in a test — a service that can't be faked is a defect, not a feature.

Tested by default

New logic ships with unit tests in the same change, not after. Several apps carry 100+ tests gating CI.

Instrumentation discipline

GA4 plus a purpose-built internal dashboard that maps screen and event coverage across the whole portfolio — a feature that isn't measured is a feature that can't be improved.

Certificates · 8 earned

2026

Generative AI Leader Certification

Google
Issued Jul 2026 · Expires Jul 2029
Credential ID e778196d-152f-4d51-81c9-469402c83614

Generative AI – AI Transformation Lead Program

Academy by AirAsia Next
Issued May 2026

Generative AI – English

Academy by AirAsia Next
Issued May 2026

Google Cloud Certified Professional Cloud DevOps Engineer

Google
Issued Jan 2026 · Expires Jan 2028
Credential ID c8886665ed56448caa760d05fc111262
2022

Launching Leaders

BYU Management Society (Global)
Issued Oct 2022

#KnowTheSign Anti-Trafficking Training

AirAsia Foundation
Issued Oct 2022
2021

CompTIA Security+ (SY0-601) Cert Prep: 2 Secure Code Design and Implementation

LinkedIn
Issued Oct 2021
Credential ID Aa9YZq17l_cZzhUhagdWZhktjY4F

PC Pro Certification

TestOut Corporation
Credential ID C2VJT