Help & Support

Effective / revised: September 26, 2026

1. How to play

Press and drag from one of two same-colored dots to draw a line between them. Lines move only horizontally or vertically and cannot cross themselves or another color's endpoint. Dragging back over your own line shortens it, and dragging over another color's line steals that space, clearing the other line. A level is complete once every color is connected and every cell is filled. Turn on colorblind mode in Settings to show a letter on each dot alongside its color.

2. Saving, hints, language, and daily/time trial

Progress saves automatically on-device and also to the server once you're signed in. Hints are deducted after use is confirmed; watching an ad alone does not grant a hint, it's credited only after server verification. Change language (Korean/English), haptics, sound, colorblind mode, and theme in Settings. The daily puzzle changes to a new board every day, and time trial keeps a personal best time per board size. Purchases and restoring purchases happen in the Store.

3. Reporting a problem

Email dhalska2@gmail.com with StreamLine Pulse in the subject line, your app version, device/OS, reproduction steps, and, if useful, a screenshot with personal information redacted. Send only what's needed to investigate; never send passwords, authentication codes, or card details. For store billing or refunds, use that store's own support process.