Unifi Apps

How to build Unifi Apps?

This guide explains the required integration architecture and the sequential steps for deploying Unifi Apps across LINE and Web environments.

Please follow each step based on the specific platform or integration type you plan to support.

① LINE Version Development — LIFF SDK Integration

Unifi Apps can provide a LINE-based experience in two ways:

• LINE MINI App

• LINE Login LIFF

Both run inside the LINE mobile app and are implemented using the LIFF SDK, but they use different channel types and are onboarded through different tracks.

Key Differences

Item	LINE MINI App	LINE Login LIFF
Channel	LINE MINI App Channel	LINE Login Channel
App Store policy	Compliance with App Store policies	-
LIFF SDK Usage	Yes	Yes
Unifi Apps SDK Usage	Yes WalletProvider PaymentProvider (IAP)	Yes WalletProvider PaymentProvider (Crypto/Stripe Fiat)

📌 Refer to LINE Integration documentation for detailed instructions. 📌 LINE MINI App and LINE Login LIFF are technically implemented by first integrating the Unifi Apps SDK into a base Web service, and then adding the LIFF SDK on top of it. Therefore, the Web and Unifi Apps SDK environment is inherently included from a technical perspective.

② Web Version Development

Development of a web browser version for Non-LINE users is recommended.

To support the following features, the Unifi Apps SDK must be integrated into the web version:

• WalletProvider

• PaymentProvider (Crypto / Stripe Fiat)

③ Web3 Integration (WalletProvider)

Unifi Apps SDK enables wallet features such as account creation and ownership verification.

Version	Supported Wallet Types
LINE MINI App	LINE (Liff) OKX, Bitget Wallet
LINE Login LIFF	LINE (Liff) OKX, Bitget Wallet
Web	Social Login (Web) Kaia Wallet App/Extension, OKX, Bitget Wallet

📌 Refer to Wallet Provider documentation for detailed instructions.

④ Payment Integration (PaymentProvider)

To support monetization, all Unifi Apps must provide in-app item purchases.

Version	Supported Payment Methods
LINE MINI App	IAP payments
LINE Login LIFF	Crypto & Stripe (Fiat) payments
Web	Crypto & Stripe (Fiat) payments

📌 Refer to Payment Provider documentation for detailed instructions.

⑤ App Review — Quality & Compliance Check

Submission and review providers vary by version:

Version	Demo Submission/Review Authority
LINE MINI App	LINE NEXT (Pre-review) LY (Final approval) Submission to LY is required after LINE NEXT review is completed
LINE Login LIFF	LINE NEXT Submission via email
Web	LINE NEXT Submission via email

⑥ Onboarding & Launch

Version	Featured Placement	Exposure Area	Served Users
LINE MINI App	LINE App & Unifi	MINI Tab in LINE App Apps in Unifi	Japan LINE Users
LINE Login LIFF	Unifi	Apps in Unifi	Global LINE Users
Web	Unifi	Apps in Unifi	Global Users

Additionally, if you register your information through a separate track, you may be featured on the Unifi and also sell NFTs.