endorsedCompleted

Native iOS & Android App for Earbud Replacement Marketplace

Services Covered:

Mobile Application Development • UI/UX Design

Industry

E-commerce & Retail

2 months

Budget

10K - 49K

Start Date

1 April 2025

Team Size

1-5

Engagement Model

Nearshore

Project Capability Score (PCS)

81/100

Strong

Project Capability Score (PCS) estimates how capable Young Decade is of successfully delivering a project like this, based on its past experience, track record, and ability to handle similar work. Learn more about PCS

Client

TheRightOne

Ras Al Khaimah, United Arab Emirates

Project Summary

Young Decade developed native iOS and Android apps for an earbud-replacement marketplace, performing product discovery, UI/UX design, API redesign, and DevOps setup. Post-launch metrics included 18,400 downloads in the first 30 days, an increase in in-app checkout completion from 38% to 71%, a 2.6× rise in monthly GMV within 90 days, and a Day-30 retention of 43%. The team also delivered strong technical KPIs, including a 1.2-second average cold-start time on iPhone 12 and zero ANRs on Android.

Key Challenges

Mobile traffic had stagnated and required improvement
Client lacked in-house mobile expertise
Tight budget constraints
Strict launch deadline coinciding with an upcoming iOS release

Project Deliverables

Design system in Figma
Native iOS and Android apps (SwiftUI, Kotlin)
GraphQL backend layer
DevOps and release pipelines (Fastlane, TestFlight, staged rollout)
Analytics integrations (Firebase, Amplitude, RevenueCat)
Knowledge transfer and documentation (pair programming, Loom walkthroughs)

Project Solution

Young Decade performed end-to-end mobile product work: product discovery with user interviews, UX sprints and a Figma design system, native development for iOS (SwiftUI) and Android (Kotlin), API redesign into a GraphQL layer, DevOps and staged releases (TestFlight, Fastlane), analytics integration (Firebase, Amplitude, RevenueCat), and knowledge transfer via pair programming and recorded walkthroughs.

Project Outcome

18,400 downloads in the first 30 days (target was 10,000)
In-app checkout completion rose to 71% from 38%
Monthly GMV increased by 2.6× within 90 days
Sales covered development costs within six weeks
Day-30 retention improved to 43% (from 19% on mobile web)
4.9/5 App Store rating based on 1,200 reviews
Technical KPIs: no Android ANRs for 60 days; 1.2s average cold-start on iPhone 12

Platforms

Mobile

Tech Stack

Kotlin
Android
iOS
GraphQL
Fastlane
Firebase
Amplitude

Client Endorsement

Overall Review Rating

Timeliness

Cost Rating

Willing to Refer

Quality of Deliverables

With Young Decade IT Software Solution, our team reached 18,400 downloads, pushed in-app checkout completion from 38% to 71%, grew monthly GMV 2.6x, and hit a 43% retention rate. They also got the average cold start down to 1.2 seconds on an iPhone 12, with zero ANRs on Android.
Mitchell Kinkeade
CEO
Date: 08/21/2025