In-house design + engineering shipping multi-vertical mobile apps. Wellness, AI creativity, utilities, media, productivity.
- iOS + Android, Flutter & Native
- 25+ languages, private partner labels
- Design-led iteration
Mobile App Studio · Hanoi
Building apps people love.
Tranquil Mind Technology is a Hanoi-based mobile app studio. We design, build, and operate apps across wellness, AI creativity, productivity, and entertainment — shipped on iOS and Android to users worldwide.
What We Do
One studio, three disciplines.
We craft mobile experiences end-to-end — from the first sketch to monthly revenue reports.
Ad mediation, IAP, subscription. We run AdMob, Meta, AppsFlyer pipelines and tune for LTV — not just installs.
- AdMob + Meta + multi-network SDK
- Daily revenue tracking
- 300% QoQ growth pattern
From App Store Connect to Google Play, we standardize store listings, legal docs, and release pipelines across 30+ apps.
- ASO + localized metadata
- Auto-gen privacy/terms
- Multi-region rollout
Why Tranquil Mind
Studio-grade craft, startup speed.
We’re a small, senior team. That means thoughtful product decisions, fewer meetings, and apps that actually feel good to use.
Dedicated Teams
Cross-functional product squads — designer, engineer, growth — owning each app end-to-end, from concept to ASO.
Quality Engineering
CI/CD on every commit, automated screenshots, ad-SDK detection, multi-flavor builds. Ship fast without breaking trust.
Wellness-First Thinking
Born from BlissLand. Even our utility and AI apps inherit a calmer, less aggressive UX philosophy.
Built for the World
Localized into 25+ languages, GDPR/CCPA-compliant by default, distributed across iOS and Android stores globally.
Our Impact
A portfolio that scales.
32
Apps shipped
live on store
25+
Languages
localized worldwide
7
Verticals
wellness → AI → utility
2
Platforms
iOS + Android
Operating across 7 verticals
Mental Wellness
Zentide Sleep Tracker · Blissland
AI Creative
Lunaai Chat · Glowai · Snaphd · Genify Ai · Luminai
Utility · Booster
Apex Booster · Sonicboost Pro · Aura Recover · Pulsar Booster · Sonic Cleaner
VPN · Privacy
Swift Secure Vpn · Fluxvpn
Downloader · Media
Vidkeeper Video Downloader · Quicksave · Snapvid · Turbovid
Music
Rhythmlab
Games
Gpocket
Our Apps
Live on the store.
33 apps — Tranquil portfolio and live products from partners across iOS and Android.
Tranquil
iOS
Blissland
View on store→Tranquil
DemoAndroid
Luminary Pdf
Partner with us→Tranquil
Android
Turbovid
View on store→Steel Falcon
Android
Apex Booster
View on store→Steel Falcon
Android
Glowai
View on store→Steel Falcon
Android
Gpocket
View on store→Steel Falcon
iOS
Gps Circle
View on store→Iron Bear
Android
Lunaai Chat
View on store→Steel Falcon
Android
Rhythmlab
View on store→Steel Falcon
Android
Snaphd
View on store→Steel Falcon
Android
Sonicboost Pro
View on store→Steel Falcon
Android
Swift Secure Vpn
View on store→Steel Falcon
Android
Vidkeeper Video Downloader
View on store→Midnight Lion
Android
Aura Recover
View on store→Midnight Lion
Android
Fluxvpn
View on store→Midnight Lion
Android
Genify Ai
View on store→Midnight Lion
Android
Goal Arena
View on store→Midnight Lion
Android
Onyx Browser
View on store→Midnight Lion
Android
Quicksave
View on store→Midnight Lion
Android
Score Deck
View on store→Midnight Lion
Android
Vaultix Browser
View on store→Midnight Lion
Android
Vidnova
View on store→Phantom Stag
Android
Beat Maker
View on store→Phantom Stag
Android
Zentide Sleep Tracker
View on store→Cobalt Tiger
Android
Luminai
View on store→Cobalt Tiger
Android
Pulsar Booster
View on store→Cobalt Tiger
Android
Snapvid
View on store→Cobalt Tiger
Android
Star Ring
View on store→Cobalt Tiger
Android
Veil Tunnel Browser
View on store→Frozen Cobra
Android
Rollicon 3d
View on store→Frozen Cobra
Android
Sonic Cleaner
View on store→Frozen Cobra
Android
Sticker Lab
View on store→Frozen Cobra
Android
Veilo Browser
View on store→Hubs & Partners
One public showcase. 6 private labels.
Our public Demo hub showcases every app we ship — open for partners to browse. We also build under 6 additional labels for clients who prefer to stay confidential.
6 private partner labels
Codenames in place of real brand names — by partner request.
9 apps
Steel Falcon
Confidential partner
9 apps shipping under this label.
9 apps
Midnight Lion
Confidential partner
9 apps shipping under this label.
5 apps
Cobalt Tiger
Confidential partner
5 apps shipping under this label.
4 apps
Frozen Cobra
Confidential partner
4 apps shipping under this label.
2 apps
Velvet Tiger
Confidential partner
2 apps shipping under this label.
1 apps
Iron Bear
Confidential partner
1 app shipping under this label.
Tech Partners
Powered by the best.
Our apps integrate with the platforms millions of developers trust — for monetization, distribution, and analytics.
Ad Network · Play Store
AdMob mediation, Play Store distribution, AdSense integrations.
Meta
Ad Network
Audience Network ads and Facebook attribution SDK.
AppLovin
Ad Network
MAX mediation across iOS and Android inventory.
IronSource
Ad Network
LevelPlay mediation and Unity Ads bidding.
Apple
App Store
iOS App Store distribution and TestFlight beta program.
Liftoff
Ad Network
Performance marketing platform for mobile user acquisition.
Mintegral
Ad Network
Programmatic ad network with focus on Asia-Pacific inventory.
Pangle
Ad Network
ByteDance ad platform powering TikTok’s advertiser ecosystem.
Unity
Ad Network
Unity Ads and LevelPlay mediation for game and app monetization.
InMobi
Ad Network
Mobile-first programmatic advertising with strong India/SEA reach.
Contact Us
Got an idea, or a partnership?
We work with founders, publishers, and creative studios. Drop a line — we usually reply within a day.
Headquarters
🌏Hanoi, Vietnam
1st Floor, No. 3, Alley 98 Vu Trong Phung Street,
Thanh Xuan Ward, Hanoi