· Effective September 21, 2026 (UTC+08:00)

PROGRAM RULES

Invite friends to Flow

Share Flow with friends and earn Flow Pro rewards.

Download Flow Keyboard

Referral rewards

For each eligible friend who completes the experience and passes review: the friend receives 30 days of Flow Pro; the inviter receives up to 30 days, with a cumulative 90-day base-reward cap.

After you reach the reward cap, eligible friends can still receive their 30-day reward.

I want to invite friends

Use Flow normally to meet the qualifying usage requirements. Open Account → Invite a friend to check whether your invitation code is available.

I received an invitation code

Enter your friend’s code within 7 days of account registration.

  1. Install

    Download Flow Keyboard for your device.

  2. Open the app

    Create or sign in to your Flow account in the app.

  3. Enter the code

    Open Account → Enter invitation code and enter your friend’s code. On desktop, open Settings → Account.

Who can invite or join?

After signing in, open Account → Invite a friend and choose Copy invitation to share Flow with a friend.

To join, use a valid friend’s code during your account’s allowed entry window. You cannot invite yourself or replace a code after your account has already joined. A code that has been suspended, or a paused program, cannot accept a new entry.

The window starts at registration

The allowed entry window is measured from the invitee’s account registration—not from installation, reinstalling the app, receiving the message, or when the inviter’s code was created. Check whether the app currently allows entry and enter the code promptly.

Progress is not a reward receipt

Use Flow normally after binding a valid code. Eligible actual usage contributes to the experience progress shown in the app.

100% means the experience progress is complete, not that reward eligibility has been approved or a reward delivered. Eligibility checks or a review may delay delivery.

Fair participation

Do not invite yourself, use multiple accounts to claim rewards repeatedly, fabricate usage, or otherwise obtain rewards fraudulently or bypass program restrictions.

How violations are handled

We may hold rewards for a suspicious invitation while reviewing it. If a violation is confirmed, we may refuse unpaid rewards, revoke or recover rewards obtained through the violation, and restrict or remove referral-program eligibility. Serious or repeated fraud or persistent attempts to evade restrictions may result in account suspension or permanent termination under our Terms.

To request a review, contact service@snowline.ai.

Updates and applicable rules

This page is the official channel for current program rules and status. Older app versions and shared promotional messages may not reflect updates. Check each announcement’s effective date and scope.

From the effective date, rewards not yet issued will be settled under the updated rules, including invitations already bound or with completed experience. Invitation-count milestone bonuses are discontinued. Legitimately issued rewards are unaffected by this rule adjustment. We reserve the right to revoke or recover rewards obtained through violations and take the actions described above. The cap includes previously issued inviter base rewards, but excludes past milestone bonuses. See our Terms for general service conditions.

Already have a paid subscription?

If you do not have an active paid subscription, an approved reward is granted directly as subscription access. If you have an active paid subscription, your reward is a standalone Flow Pro gift code to give to a friend, not an extension or discount on your active paid subscription. Codes are sent to your account email, but delivery may be delayed. If the email does not arrive after a while, check your spam folder or contact support.

Each code can be redeemed once. You may give multiple codes to different eligible friends, but a friend cannot stack them while a gift-code, referral or paid subscription is active. Campaign redemption limits also apply; holding a code does not guarantee it can be redeemed by every account.

Have a code? The next step is in the app.

Install and open Flow Keyboard, then go to Account → Enter invitation code. Keep the invitation message handy.