iOS Engineer

Pavel Koltsov

I lead the mobile team at Prequel and build iOS apps end to end — sync engines, on-device storage, and the small interactions that make an app feel considered. After hours, most of that goes into Remembrall.

View Remembrall → Say hello
About

I've been shipping software since 2004 — desktop, web, high-load backends, and, for the last decade, iOS. These days I lead mobile development at Prequel; before that I built language-learning products at Skyeng, the Tinkoff Investments app, and document workflows at SKB Kontur.

Remembrall, a spaced-repetition flashcard app, is my own corner of the App Store: offline-first storage, CloudKit sync, file parsing, and enough theming code to repaint the whole app in two palettes. Outside of that, I keep a small set of Swift packages — Core Data helpers, structured logging, layout and sync utilities — that travel with me from project to project.

Stack
Swift SwiftUI UIKit Core Data CloudKit Combine Fastlane Tuist Firebase
Experience
Featured work
Remembrall app icon
Remembrall
A focused spaced-repetition flashcard app for iOS — make cards by hand or import a CSV, and let the schedule do the remembering.
Spaced repetition CSV import iCloud sync Text-to-speech
Visual design by Alena Koltsova
View project → Live on the App Store

Say hello.