Products
Apps that make up Quantarium
01 / 06
QRChat
A privacy-first messenger with QR-based connections, secure calls, and an expanding QKEY ecosystem.

02 / 06
Ringo
A call-style broadcast alert platform built for reliable delivery and instant response.

03 / 06
Quantaro
A fortune-telling platform where character readers specializing in each field interpret saju, tarot, compatibility, and daily horoscopes.

04 / 06
callAI
A 24/7 AI phone manager that answers your calls and completes bookings for you.

05 / 06
RightNow
A hyperlocal instant-matching platform offering urgent errands within a 2 km radius, AI-tailored quotes, and secure payments.

06 / 06
MOODI
An emotion-driven entertainment and social lounge for easygoing group chats and relaxed conversation.


Details available
QRChat
A privacy-first messenger with QR-based connections, secure calls, and an expanding QKEY ecosystem.

Details available
Ringo
A call-style broadcast alert platform built for reliable delivery and instant response.

Details available
Quantaro
A fortune-telling platform where character readers specializing in each field interpret saju, tarot, compatibility, and daily horoscopes.

Details available
callAI
A 24/7 AI phone manager that answers your calls and completes bookings for you.

Details available
RightNow
A hyperlocal instant-matching platform offering urgent errands within a 2 km radius, AI-tailored quotes, and secure payments.

Details available
MOODI
An emotion-driven entertainment and social lounge for easygoing group chats and relaxed conversation.

Grouped portfolio
The Others
This group includes Delivery Trace, AURA, ZAZA, WABA, and MEDIX.
Detail categories
QRChat
QRChat is a privacy-first messenger that lets you chat and call securely with just a QR code—no phone number or identity verification required. It offers minimal data collection, secure calls, real-time automatic translation, and an expanding ecosystem connected through QKEY.

What sets QRChat apart
It starts with a fully protected connection and extends to safe calls and the wider ecosystem.
QRChat is more than a chat app. It is a secure communication platform designed to minimize exposure of personal information, provide safe calls and translation, and extend into an integrated rewards ecosystem.
Connection model
Users are identified by QR code and nickname instead of synced contacts, protecting privacy from the very first step.
Privacy standard
Sign-up never requires a phone number, email address, or real name.
Secure calling
Voice and video calls use the same security model, without revealing your phone number.
Data retention policy
Following the Zero Trace principle, chat history is minimized so little is left behind after use.
Multilingual support
Built-in real-time translation lets you talk freely across languages.
Ecosystem reach
Through QKEY, it serves as the gateway to Quantarium's vast app ecosystem.

Detail categories
Ringo
Ringo is a new call-style broadcast alert platform that overcomes the limits of push notifications and redefines alerts as a medium. With over 95% delivery and over 80% open rates, it keeps important information from getting lost in a flood of notifications.
“When alerts become media.” “Reliable delivery, instant response.” “A new standard for notifications.”

What sets Ringo apart
Built to overcome low reach and alert fatigue, with a focus on getting the message through.
Ringo is different from push notifications that are easy to miss. For urgent announcements or situations that demand a response, it delivers rich media alerts combining audio and video. Patented technology, an alert inbox, and a rewards ecosystem work together to make sure your message gets through.
The problem we solve
People receive more than 10 notifications a day on average, yet fewer than 15% are opened—so important information gets missed. Ringo fixes that.
Delivery model
Alerts appear as an incoming-call screen, so users notice and respond right away.
Rich media
Alerts can carry rich multimedia content, including voice, video, images, and links.
Channel structure
Channel subscriptions block spam and deliver only the information each user needs.
Storage and management
Unlike push notifications that disappear, alerts are saved to an inbox so you can revisit and share them anytime.
Proven technology
Ringo holds four patents related to call-style alerts and connects with Cookie Mall, a rewards mall offering over 300,000 products to redeem.

Detail categories
Quantaro
Quantaro is a character-based fortune-telling platform where Quantaro readers interpret saju, tarot, compatibility, and daily horoscopes. With Korean and Japanese support, it also serves the Japanese market.

From left: Home and recommended readings, readings by category, and free readings and reader profiles
What sets Quantaro apart
Character fortunes from expert readers in every field
With expert readers for each field and 11 reading categories, Quantaro offers everything from quick free readings to in-depth premium sessions.
01
Readings by character readers
Readings come from expert readers in each field, including Cha Woo-jin (lead reader), Kim Seo-jun (love and reunion), Jung Do-yoon (wealth and business), and Moon Eun-woo (tarot and decisions).
02
11 reading categories
Categories include daily horoscope, New Year fortune, love, tarot, saju, business, face reading, soul reading, past lives, Tojeong Bigyeol, and compatibility.
03
Free readings + premium sessions
Daily horoscope, face reading, past lives, zodiac fortunes, biorhythm, and personality type are free, with premium readings offered separately.
04
Korean · Japanese
A KO / JA switch lets Quantaro serve the Japanese market too.
Detail categories
callAI
callAI is a 24/7 AI phone manager that answers incoming calls and completes bookings for you—even while you're busy serving customers.
“Your 24/7 AI Phone Receptionist”

What sets callAI apart
AI answers the call and books it, too
It answers with real conversation, not an automated phone menu, and manages bookings from phone, web, and app in one booking log.
01
A missed call is a missed sale
Even while you're serving customers, AI picks up the phone.
- 100% answer rate, 24/7 and after hours
- Handles bookings, changes, cancellations, and inquiries end to end
- No lost sales, no human agents needed
02
So natural, callers won't know it's AI
Real conversation, not a phone menu—seamless, instant, and personal, calling customers by name.
- 1.5 seconds of silence · Always instant, never silent
- Half-duplex turn control—no interruptions while AI is speaking
- Recognizes regulars by caller ID: “Is this ○○?”
03
Phone, web, and app in one booking log
More channels, without more double bookings or no-shows.
- Phone, web, app and maps share one booking database
- Two-layer deposit protection (payment link + bank transfer detection)
- Korean, English and Japanese support for tourist areas
Core technology
Conversation engine
LLM-based slot-filling engine
Speech recognition (STT)
Low-latency recognition built on Deepgram streaming
Phone line
VoIP Inbound Pipeline & SIP Trunk Migration Roadmap
Speech synthesis (TTS)
Two tiers: standard neural voices plus premium CLOVA
Multilingual · Admin
Korean, English and Japanese support, with separate admin for stores and headquarters
Detail categories
MOODI
MOODI is an emotional social lounge where you can connect comfortably, free from comparison fatigue and stiff atmospheres. It brings together music, short-form video, creator content and fan communities in an entertainment space where people connect naturally through emotion.
MOODI officially launched on the Google Play Store on July 15, 2026.

What sets MOODI apart
A low-pressure place to connect, and an entertainment platform built on emotion.
MOODI helps you discover content that fits how you feel right now, not specs or popularity algorithms. It is a new hangout that eases the awkwardness of online meetups and the fatigue of comparing yourself to others.
The problem
Fully resolves the comparison fatigue of social media and the stiff atmosphere of traditional meeting tools.
Emotional social lounge
A private hideaway where you can talk lightly and comfortably, free from others' judgment.
Real-time connection
Community features include one-tap voice rooms, watching media together and browsing the web together.
Connected content
Music, video, short-form, creators and fan communities, all in one ecosystem.
Mood-based discovery
Recommends content based on your current mood and vibe, not views or popularity.
Ecosystem integration
Ongoing integration with QKEY and the Quantarium ecosystem.

Detail categories
RightNow
RightNow is a hyperlocal matching platform that handles urgent errands within a 2 km radius. With AI-based pricing, secure escrow payments and fast matching, it quickly connects requesters with runners.
Urgent errands within 2 km, handled right away, from AI quotes to secure settlement.

What sets RightNow apart
Turning urgent local errands into simple, trusted mobile transactions.
RightNow is more than a delivery app. It is a dedicated platform for neighbors to handle urgent tasks nearby, bringing AI pricing, strict distance limits, fast matching and secure payment into one seamless mobile flow.
For requesters
Solves what booking-based errand services couldn't: help within 30 minutes and unclear settlement.
For runners
A real-time, contact-free way to earn transparent, secure side income in spare moments.
Solution model
Write a one-line request and AI estimates a fair price. Matching through payment happens in one go.
Service standards
A 2 km radius limit and 20-minute, 30-minute and 1-hour time options ensure fast, reliable urban matching.
Trust and safety
Secure escrow payments, prohibited-item filtering, real-time location and identity verification, and OCR receipt recognition.
Intuitive UI
Clear screens for AI price estimates, time selection, a nearby map and secure payment approval.

Grouped portfolio
The Others
The services below are grouped into a single portfolio instead of separate detail pages. This keeps the page easy to scan while clearly presenting the core lineup and vision of Delivery Trace, AURA, ZAZA, WABA and MEDIX.

Coupon-first food delivery home
Delivery Trace
A coupon-first food delivery home screen. A personalized delivery screen with category browsing, discount coupon banners, ratings, estimated delivery times and delivery fee info.

Premium adult social landing
AURA
The landing screen for a premium adult social platform. A premium, adults-only social screen with a clean split-color entry, an enter button and an age restriction notice.

Stay discovery and booking feed
ZAZA
A stay discovery and booking feed. An accommodation booking screen with search, category icons, promo banners, and clear pricing and ratings.

Profile-first social discovery feed
WABA
A profile-first social discovery feed. A social feed screen combining story updates, profile cards, lifestyle tags, location info and real-time messaging.

Find and book specialists
MEDIX
A specialist search and booking service. A digital healthcare platform screen where you can find specialists, compare experience and ratings, and book appointments in one place.