Case Study
Audify Music Player: scaled from under 1,000 installs to 74M+ downloads.
Zetrixweb took full ownership of mobile development and QA for Audify Tech Private Limited, stabilizing the app and shipping feature pods that drove massive growth across iOS and Android.
Growth Status
Stabilized, shipped, and scaled
Live
Stability reset
Crash fixes and playback performance
Complete
iOS + Android shipped
Native parity releases live
Live
Song Identifier
4.8-star rated signature feature
Validated
Sharing + sync
Nearby + cloud transfers live
Operational
74M+ downloads
Scaled adoption at volume
Scaled
Executive Summary
Full-cycle mobile ownership that scaled Audify to 74M+ downloads.
+74,000% growth
4.5-star average
1.27M+ ratings
74M+ downloads
Song Identifier 4.8-star
Zetrixweb partnered with Audify Tech Private Limited (founded by IIT alumni) to take over complete mobile development and QA. We inherited an app with under 1,000 downloads and stability issues, then scaled it into a 74M+ download music platform with song identification, sharing, device setup, themes, and 40+ features.
Growth Metrics
Enterprise-scale growth and engagement signals.
Downloads
74M+
Android installs scaled from under 1,000 baseline.
Ratings
1.27M+
Total ratings with a 4.5-star average.
Velocity
25k+
New ratings per month driven by feature releases.
Features
45+
Feature depth across discovery, sharing, and personalization.
Growth Trajectory
From under 1,000 installs to 74M+ downloads.
| Year | Downloads | Growth | Progress |
|---|---|---|---|
| 2018 (handover) | < 1,000 | Baseline | |
| 2020 | ~1 Million | 1,000x | |
| 2022 | ~10 Million | 10,000x | |
| 2024 | ~50 Million | 50,000x | |
| Jan 2026 | 73.98 Million | 74,000x+ |
Challenge
Audify needed stability, scale, and signature features to stand out.
The product required a reliable mobile foundation while shipping high-impact features that could drive retention and ratings across two platforms.
Technical instability
Early builds struggled with crashes and playback issues at small scale.
Feature differentiation
The app needed standout features like song identification and sharing to grow.
Cross-platform parity
Users expected the same experience across iOS, Android, and car integrations.
Solution
Full-cycle mobile development + QA ownership.
Stabilize, accelerate, and scale the product while building signature features.
Audify
Consumer music app
Mobile-first roadmap built for explosive scale.
Zetrixweb owned end-to-end delivery for iOS and Android, pairing a rigorous QA cadence with rapid feature iterations to grow Audify into a top-rated music player.
Stabilize
Resolved crash loops, playback issues, and performance gaps.
Accelerate
Shipped high-value pods like song identifier and sharing.
Scale
Optimized analytics, syncing, and multi-device onboarding.
74M+ downloads
4.5-star rating
45+ features shipped
Signature Feature
Song Identifier with 4.8-star ratings
Instant song recognition with Google search integration and library saving.
85% accuracy
4.8-star rating
Google search
Sharing + Sync
Nearby sharing and cloud-first library sync
Fast device-to-device sharing plus cloud backup and one-tap setup on new devices.
Nearby sharing
Cloud sharing
Device restore
Most Loved Features
Experience upgrades that drove retention and ratings.
Song Identifier
Identify any playing song instantly and save the match with Google search integration.
85% accuracy
4.8 star rating
Nearby Sharing
Share songs, playlists, and files with nearby devices instantly without the internet.
No internet
20MB/s speed
Cloud Sharing
Sync your library across devices with backup restore and anywhere access.
Cross-device
Auto-sync
Setup on New Device
Restore your full library, playlists, and preferences in minutes.
One-tap restore
Cloud backup
Multiple Themes
20+ themes including dark, light, gradient, and custom color options.
20+ themes
Custom colors
Complete Feature Set
Complete Feature Set - 45+ Powerful Features.
Song Identifier
Nearby Sharing
Cloud Sharing
Setup New Device
Multiple Themes
Share Playlists
Share Songs
Google Drive Import
OneDrive Import
Audiobook Support
Sleep Timer
5-Band Equalizer
Floating Player
Android Auto
Apple CarPlay
Apple Watch
Chromecast
Apple Music Library
Full Playlist Sync
Firebase Backend
Tic Tac Toe
Ringtone Cutter
40+ Languages
Folder Browse
Tag Editor
Offline First
Platform Scale
Performance, offline resilience, and car integrations.
Offline-first playback
Reliable music playback with optimized caching and fast load times.
Car-ready interfaces
Apple CarPlay and Android Auto support for safe, hands-free listening.
Analytics + crash monitoring
Firebase analytics, crash reporting, and release stability tracking.
Setup on new device
One-tap restore of playlists, themes, and preferences.
Our Solution
Native iOS, Android, and Firebase delivery stack.
Native builds, feature pods, and reliability playbooks across iOS and Android.
Native iOS
Swift, SwiftUI, UIKit, AVFoundation, CarPlay, WatchKit, CoreBluetooth.
Apple Music Library
Media playback
CarPlay
Native Android
Kotlin, Jetpack Compose, ExoPlayer, MediaSession, Android Auto.
Chromecast
Offline playback
MediaSession
Firebase Backend
Authentication, analytics, crash reporting, cloud messaging, and sync.
Authentication
Crashlytics
Cloud Messaging
Deep Dive
Song Identifier: the most loved feature.
Instant recognition with Google search integration.
Audify recognizes songs in seconds and returns exact matches with one-tap search. The feature is used by millions of listeners and drives the highest ratings in the app.
- 85% accuracy rate across radio, TV, and live music.
- One-tap Google search and save to library.
- Offline recognition with local database support.
User Rating
4.8-star average
Based on ratings from 2M+ identifier users.
User Feedback
What listeners say about Audify.
"The song identifier is incredible. I heard a track at a cafe and Audify identified it in seconds. Most-used feature by far."
Rahul Mehta, Google Play"Switched to a new phone and setup was seamless. Playlists, themes, and preferences restored in minutes."
Priya Sharma, App StoreWhy Zetrixweb
Delivery proof for consumer-scale products.
Scaled 1k to 74M
Growth execution across acquisition and retention.
Native iOS + Android
Parity delivery with performance-first releases.
Firebase experts
Analytics, crash monitoring, and sync at scale.
Signature Song Identifier
4.8-star rated feature with 85% accuracy.
Sharing + Sync
Nearby transfers with cloud backup and restore.
CarPlay + Android Auto
Hands-free listening with native integrations.
Product Links
Audify is available on iOS and Android.
We only developed the mobile apps - websites are client-owned.
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