📱 Mobile (iOS and Android) development agency in Kyiv, Ukraine. Your partner in mobile development world.


Doubly is a mobile (iOS and Android) app development agency from Kyiv, Ukraine. We help businesses solve their challenges with high quality and user-friendly mobile solutions. ✅ We can help: ➜ To make the mobile development process (Android and iOS) in your company faster and more cost-effective; ➜ Find and fix functional/performance issues before you upload app on App Store and Play Market; ➜ Your business to successfully grow via support of mobile applications; ➜ To bring your whole idea, or new features of your existing product to market faster without major problems; ➜ To decrease spending money on in-house Android and iOS mobile developers. ✅ Top Rated agency of UpWork; ✅ 100% Job Success; ✅ Qualifications include 6+ years of Android and iOS mobile development experience. ✅ We have successfully finished many projects: - app for Android which helps to edit pdf documents; - Wi-Fi development board to build connected IoT projects with Groves; - custom keyboards; - messenger (based on XMPP); - app which manages bluetooth low energy devices; - app with GPS based features, worked with google maps api for both Android and iOS; - app like "Shazam" only for video for both Android and iOS. ✅ Stack of technologies that we use for Android app mobile development: ____ • Android SDK; • Android Jetpack, Architecture Components: ViewModel, LiveData, Lifecycle; • Dependency injection: Dagger 2, Koin; • Multithreading: RxJava2/RxKotlin, Kotlin coroutines; • Databases: SQLite / Room / Realm; • Networking: Retrofit (Rest API) / OkHttp / Websocket; • Testing: Junit / Mockito / Mokk / Robolectric / Espresso / UI Automator; • Notifications: FCM (Firebase cloud messaging); • Bluetooth, BLE (Bluetooth low energy); • Google Maps SDK; • Image loading: Glide, Picasso. ✅ Stack of technologies that we use for iOS app mobile development: ____ • iOS SDK; • UI: Autolayout, Storyboard; • Multithreading: GCD, OpeartionQueue; • Dependency injection; • CoreData; • SwiftUI; • Core Animation, Core Graphics; • Networking: Alamofire / SwiftyJSON; • Apple Services: iTunes Connect, TestFlight, In-App-Purchases; • Testing: Unit tests/ UI tests. Do you need a fast and efficient MVP launch, or a complete project for iOS and Android from scratch? Doubly is what you need!

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Mobile Development

We bring together the qualified and experienced iOS and Android developers, so you can outsource your project and get a top-quality product. We have top-level expertise you need to create stable and scalable mobile applications.


iOS Development
Mobile App Development
Software Development
Android SDK
Android App Development
Rising Talent

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Upwork activity

Hourly rate

$20.00 - $35.00

Total earned


Total hours


Total jobs


Member since

Aug 19, 2020

Company information

Agency size

2-10 workers

Year founded


Client focus

Medium business

Very small business

Small business

Russian: Native or Bilingual
Ukrainian: Native or Bilingual
English: Fluent