Become a Liii STEM User

Why register?

Registering a Liii STEM account unlocks additional services and features.

Core benefits

• Member-only features: built-in LLM, OCR handwritten formula recognition, PDF recognition, and more require an account.
• Community participation: join the active Mogan community and communicate with other users.
  • Paid members also have dedicated paid groups and dedicated support groups.

Exclusive Service Groups

• New-user benefit: register and receive a 14-day trial membership.

Membership duration rewards

1. Community contribution: actively help others and receive bonus membership time.
2. Quality feedback: submit useful suggestions or bug reports for membership rewards.
3. Activity rewards: participate in official events (for example, Weekly Challenge) for extra rewards.
4. Referral bonus: after inviting a new user successfully, both sides receive 7 extra days.

Liii STEM vs Mogan STEM

Comparison	Mogan STEM	Liii STEM
Open-source level	Fully open source	Mostly open source
Magic Paste	Included	Included
PDF/LaTeX export	Included	Included
AI integration	Not included	Included (membership required)
OCR and smart paste	Not included	Included (membership required)

Pricing: see official pricing page.

How to register (about 3 minutes)

Open the Liii STEM website and go to the login page.

Click Login in the top navigation bar (or use this link).

You will see the login page.

At the bottom of the login page, click the blue text Go to register.

Then complete registration on the registration page.

• Register now and get 14-day membership.

How to invite friends (extend your membership)

Both inviter and invitee get 7 extra days.

• After login, go to Personal Center.

• In Personal Center, click invitation/referral.

• You will see your invite code and invitation records.

Official community

QQ community group: 934456971