About
A relaxing one-line puzzle game that sharpens your mind. Connect all the dots without overlapping lines to solve over 900 handcrafted levels. Enjoy a minimalist design with beautiful colors and awesome audio effects.
What's New in Fill the Rainbow
1.5
November 5, 2025
Minor bug fixes and performance optimizations
In-App Purchases
$3.99
Remove Ads
Enjoy the game without any interruptions.
Developer apps
FAQ
What is Fill the Rainbow?
Fill the Rainbow is a connect-the-block style one-line brain training puzzle game. It features over 900 handcrafted levels with a minimalist design and relaxing atmosphere.
How do you play Fill the Rainbow?
You start from an initial dot and connect all open dots on the board without overlapping lines, ending at the last dot. Connections are made vertically or horizontally.
Does Fill the Rainbow have ads?
Yes, Fill the Rainbow contains advertisements. It is a free game supported by ads and offers in-app purchases.
Can I play Fill the Rainbow offline?
The provided description does not specify if Fill the Rainbow can be played offline. However, many puzzle games of this nature are playable without an internet connection.
What devices does Fill the Rainbow support?
Fill the Rainbow is available on iPhone, iPad, and iPod devices.
What is the age rating for Fill the Rainbow?
Fill the Rainbow has an age rating of 4+, making it suitable for young children and up.
How often is Fill the Rainbow updated?
The latest version of Fill the Rainbow is 1.5, and it was last updated on November 5, 2025. This indicates a recent update frequency.
What are the in-app purchases in Fill the Rainbow?
The description mentions in-app purchases but does not detail what they are. Typically, these might include hints or cosmetic items for puzzle packs.
