one a day
One A Day (원어데이) is a private South Korean e-commerce marketplace operating since 2007 that sells time-limited daily deals and bundle promotions across health, food, electronics, and lifestyle categories to price-sensitive Korean consumers via its website and mobile app.
- Company typePrivate
- Founded2007
- HeadquartersAnyang, South Korea
- Headcount11–50
- GTM typeB2C
- OfferingDigital Commerce or Content
What one a day does
One A Day (원어데이, legally 주식회사 원어데이) is a private South Korean e-commerce company founded in March 2007 and headquartered in Gwacheon, Gyeonggi-do, operating the marketplace oneaday.co.kr. The platform pioneered a daily-deal / flash-sale model in Korea — historically offering a large catalog of limited-time discounted SKUs each day across health supplements, food, electronics, and lifestyle categories — and has since broadened into periodic bundle promotions (1+1, 1+3, 1+12 formats) and an always-on marketplace format following the 2021 site renewal that introduced the 365 corner. The company generates revenue primarily through marketplace commissions on third-party seller transactions, supplemented by a premium membership tier (launched December 2018) and two proprietary virtual currencies, Money Point and One Cash, that function as stored balances with annual validity.
The platform is supported by a member dashboard (MYDAY) for order tracking, points management, and 1:1 customer service, and a community/blog section (Ha.Ha.Ha) covering curated lifestyle topics such as cycling (자전거) and longevity health (100세건강). Technology is built on standard third-party integrations rather than proprietary infrastructure: NHN and Nice for payment processing, PAYCO and Kakao for OAuth-based SSO, Danal for mobile identity verification, and SureM for AlimTalk and SMS notifications. Native iOS and Android apps launched in December 2010 were consolidated into a hybrid mobile app in July 2019.
The company is led by Representative Director Kim Ho-jung (김호중) and operates with a small team in a single domestic market. It received its only disclosed external capital — an undisclosed round from IDG Ventures — in August 2009, and has since been funded internally. Distribution is exclusively online through oneaday.co.kr, with community engagement extended via Facebook and Kakao Band. The business serves price-sensitive Korean consumer shoppers rather than enterprise or SMB buyers, and its seller base is accessed through an affiliate/seller onboarding page (입점문의).
one a day firmographics
Firmographics- Name
- one a day
- Legal name
- (주)원어데이
- Website
- https://oneaday.co.kr
- Company type
- Private
- Founded year
- 2007
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- One A Day (원어데이) is a private South Korean e-commerce marketplace operating since 2007 that sells time-limited daily deals and bundle promotions across health, food, electronics, and lifestyle categories to price-sensitive Korean consumers via its website and mobile app.
- Ownership category
- akta.pro rank
one a day industry classification
Industry- Product category
- Daily Deals E-commerce Marketplace
- NAICS
- All Other Miscellaneous Retailers (45999)
- SIC
- Retail-Misc General Merchandise Stores (5399)
- akta.pro primary industry
- Mass-Market Multi-category (1P/3P) Marketplaces (CRAFAAAA)
- akta.pro secondary industry
- Price Comparison, Deals, Cashback & Loyalty Shopping Platforms (BPAMAGAH)
Keywords
Where one a day is headquartered
LocationHeadquarters
- HQ city
- Anyang
- HQ country
- South Korea
- HQ region
- Asia
Offices1 record
Markets served
one a day business model
Business model- GTM type
- B2C
- Offering type
- Digital Commerce or Content
- Cost components
- Supply Chain, Personnel, Operations, Marketing or Sales, Technology or R&D
Revenue model
- Marketplace Commission: The platform operates as a marketplace where third-party sellers list and sell products directly to consumers. The company earns commission/transaction fees from sales conducted through the platform.
Distribution channels1 record
Marketing channels3 records
one a day product offering
Product offeringCore offering
One A Day (원어데이) operates a Korean daily-deal and flash-sale e-commerce marketplace where third-party sellers list time-limited product offers at discounted prices. The platform covers categories including health supplements, food, electronics, and lifestyle items, and is supplemented by a member management dashboard (MYDAY), a lifestyle community section (Ha.Ha.Ha), and proprietary virtual currencies (Money Point, One Cash). Customers access the marketplace via the oneaday.co.kr website and mobile app.
Product overview
One A Day (원어데이) operates as a Korean e-commerce flash sale and daily deals marketplace. The core platform centers on time-limited product sales at competitive prices, complemented by a member management system (MYDAY), a lifestyle community section (Ha.Ha.Ha) covering topics like cycling and longevity health, and proprietary virtual currency systems (Money Point and One Cash). The company transitioned from a daily deal model (originally known for selling 5,000 items daily) to a broader e-commerce format featuring periodic bundle deals and special promotional events. The platform integrates third-party payment processors (NHN, Nice, PAYCO), identity verification (Danal, Kakao SSO), and messaging services (SureM) to enable transactions and member services.
Differentiator
Problem solved
Functional benefit
Products and services
- One A Day E-commerce Marketplace (원어데이) Korean daily-deal and flash-sale e-commerce marketplace offering discounted products across categories including health supplements, electronics, food, and lifestyle items, with a focus on 24-hour time-limited deals and competitive pricing. Third-party sellers list products on the platform.
Companies that use one a day
Customer profileSegments1 record
Ideal customer profiles2 records
one a day technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration6 records
one a day partnerships and signals
Strategic signalScale indicators4 records
Recent moves6 records
Expansion highlights3 records
one a day competitors and assessment
Company assessmentDirect peers
- TMON (티몬): Korean daily-deals and flash-sale marketplace offering time-limited discounted products across multiple consumer categories. Closest direct competitor to One A Day in format, customer base, and seller-buyer dynamic in the South Korean market.
- WeMakePrice (위메프): Pioneering Korean daily-deals marketplace with similar group-buy and limited-time discount mechanics. Competes head-to-head with One A Day for price-sensitive Korean consumers shopping flash deals on health, food, and lifestyle products.
Broad incumbents
- Coupang (쿠팡): Dominant Korean mass-market e-commerce platform with first-party logistics (Rocket Delivery). Encompasses One A Day's multi-category, deal-oriented value proposition as part of a much broader retail ecosystem and represents the primary competitive gravity in the market.
- 11번가 (11st, SK스토어): SK Group's general merchandise marketplace serving Korean consumers across electronics, fashion, food, and lifestyle categories. Broad incumbent with overlapping category coverage and seller-buyer marketplace model.
- Gmarket (지마켓): Established Korean general-merchandise marketplace (formerly eBay Korea) offering multi-category shopping including deals and auctions. Comparable marketplace model with broader category reach and brand recognition than One A Day.
- Interpark (인터파크): Korean online retail and marketplace platform spanning general merchandise, tickets, and travel. Operates a similar multi-seller marketplace format with overlapping consumer-goods categories and seller-services orientation.
- Naver Shopping: Naver's price-comparison and marketplace platform aggregating Korean sellers across all major product categories. Functions as a shopping aggregator that captures price-sensitive deal seekers — directly overlapping One A Day's core customer use case.
- Auction (옥션): Korean online marketplace with auction and fixed-price formats (formerly eBay Korea alongside Gmarket). Comparable in offering a multi-category seller-driven marketplace serving Korean consumers.
- SSG.com: Shinsegae's online retail platform combining department-store assortment with marketplace sellers. Broader incumbent with overlapping premium and discount merchandising across consumer-goods categories.
Regional players
- Groupon: Global pioneer of the daily-local-deals marketplace model. Comparable business format (time-limited merchant deals, marketplace commission revenue, multi-category local commerce) but operates primarily outside Korea; useful as a category benchmark for One A Day's deal-mechanics.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat3 records
Key risks6 records
Key highlights7 records
Customer concentration
one a day social profiles
Digital presenceone a day financial estimates
Financial estimateRevenue estimate
Valuation estimate
one a day leadership team
Management profileNumber of profiles
Profiles1 record
one a day funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
one a day M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about one a day
What does one a day do?
One A Day (원어데이) operates a Korean daily-deal and flash-sale e-commerce marketplace where third-party sellers list time-limited product offers at discounted prices. The platform covers categories including health supplements, food, electronics, and lifestyle items, and is supplemented by a member management dashboard (MYDAY), a lifestyle community section (Ha.Ha.Ha), and proprietary virtual currencies (Money Point, One Cash). Customers access the marketplace via the oneaday.co.kr website and mobile app.
Is one a day a public or private company?
one a day is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was one a day founded?
one a day was founded in 2007. It employs 11 to 50 people.
Where is one a day based?
one a day is headquartered in Anyang, South Korea, in the Asia region.
How does one a day make money?
One revenue line is on record: marketplace Commission.
Who are one a day's main competitors?
Direct peers on record are TMON (티몬) and WeMakePrice (위메프). Broad incumbents are Coupang (쿠팡), 11번가 (11st, SK스토어), Gmarket (지마켓), Interpark (인터파크), Naver Shopping, Auction (옥션) and SSG.com. Groupon is listed as a regional player.
Does one a day have an API?
No public API is recorded for one a day.
What industry is one a day in?
one a day's product category is Daily Deals E-commerce Marketplace. Its primary akta.pro industry code is CRAFAAAA, Mass-Market Multi-category (1P/3P) Marketplaces, with a secondary code of BPAMAGAH, Price Comparison, Deals, Cashback & Loyalty Shopping Platforms. Its NAICS code is 45999 and its SIC code is 5399.