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About this app

[LG U+] What is an electronic document service?

This service provides convenience to customers by converting offline documents such as tax invoices, purchase orders, transaction statements, and contracts into electronic documents based on public certificates, thereby reducing business hours and reducing costs. Now you can use the electronic contract and electronic tax invoice functions quickly and easily anytime, anywhere through your PC, smartphone, or tablet PC device.

[How to use the service]

- Existing electronic document customers: If you are already a LG U+ electronic document customer, you can use the service immediately after installing the app.
- New e-document customers: If you are not a member, you can use it after registering as a member on the LG U+ e-document website. (Homepage address: http://edocu.uplus.co.kr)

[Service main functions]

1. Contract inquiry
- Sent Inbox: You can view/confirm and electronically sign the contract issued to the contract partner.
- Inbox: You can view/confirm the contract received from the contracting party and sign electronically/by hand.
- Completed archive: You can view/confirm contract documents that have been signed by all contracting parties.

2. Write a contract
- You can create a contract by selecting a contractor using the contract form registered on the web.
- Form registration is not supported on mobile. You can use it by registering on the website.

3. Tax invoice inquiry
- You can view/confirm issued sales/purchase (tax) invoices.
- You can approve reverse-issued tax invoices.
- Supports email/fax transmission function.

4. Issuance of tax invoice
- Sales/purchase (tax) invoices can be issued with an electronic signature.

5. Notification settings
- You can check the progress of each step of the electronic contract document in real time by setting up push notifications.

6. Notice
- You can check service announcements.

[Information on app access permissions]
1. Notification (optional): Tax invoice and electronic contract notification
2. Location (optional): Check location when signing an electronic contract
3. Photos and videos (optional): Register photos as proof when signing an electronic contract
4. Music and audio (optional): Contractor’s voice recording when signing an electronic contract

※ You can use the basic functions of the service even if you do not allow optional access rights, but if you do not agree, the use of some functions may be restricted. You can choose to grant or deny permission when accessing related information and functions.


- This application was released after conducting sufficient document sending and document receiving tests on Android smartphones. However, a functional error may occur on certain smartphones, so in this case, please contact customer service (1644-7882).

- When using the "U+ Electronic Documents" app through a mobile communication network (3G, 4G, etc.), data call charges may be incurred depending on the type of mobile carrier plan you subscribe to.

- In order to use the electronic signature function of “U+ Electronic Document,” a public certificate must be installed on your mobile device.

- To import a public certificate to your mobile phone, install the "Korea Information Certification (KICASign)" app, access the Korea Information Certification certificate management page (http://www.signgate.com) on your PC, and click "Copy certificate for smartphone." You can use the function. Please refer to the website for detailed explanation.

If you have any questions related to how to use the U+ electronic document mobile app, please contact the electronic document customer center (1644-7882) or the website.
Please write an inquiry on the online inquiry bulletin board.
(Customer Center operating hours: weekdays 09:00~18:00, lunch time 12:00~13:00)

U+ electronic documents will continue to provide various and convenient services through service function improvements and updates based on customers' valuable opinions.
We will provide you with services. We sincerely thank you for always using our LG U+ electronic document service.
Updated on
Feb 27, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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Ratings and reviews

42 reviews

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