# Fill the Rainbow - Puzzle game — Travel to a Relaxing world

> Connect-the-dots style one-line brain training puzzle game. (iPhone/iPad app by Viviana Baeza.)

- Source: https://appshunter.io/ios/app/fill-the-rainbow-puzzle-game/id6468705258 (this page in markdown: same URL + `.md`)
- Developer: [Viviana Baeza](https://appshunter.io/developer/1664318415)
- Category: Games, Puzzle
- Price: Free with in-app purchases
- Rating: 4.50/5 from 2 App Store ratings
- Age rating: 4+
- Requires: iOS 13.0 · 21 MB
- Languages: American English, French (France), German (Germany), Italian, Japanese, Korean, European Portuguese, Russian, Chinese (Simplified, China), European Spanish
- Released: 2023-10-05
- Data updated: 2026-08-23
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/fill-the-rainbow-puzzle-game/id6468705258/reviews.md

## What is Fill the Rainbow?

Sharpen your mind with a connect-the-block-style one-line brain training puzzle game. Fill the Rainbow is a fun, simple and beauty relaxing puzzle game with an immersive atmosphere. 
Your brain becomes more active the more you play. If you think you are an intelligent person, you are in the right place. The more you play the more intelligent you become.

A simple but unique and addictive one-line puzzle game that’s completely free to play.

During your commute, before you sleep… enjoy downtime with brain training.

Fill the Rainbow is just like the classic connect the dots game but without numbers or structure to guide you. Start from the initial dot, then connect all open dots on the board ending in the last dot. Connections are made vertically or horizontally, and without overlap. No specific ordering or correct path is required to solve the puzzle, just that all dots must be connected.

Use hints for puzzles that are too hard to solve. Don’t get too cozy—the puzzles get harder as you go along.

One-line puzzles are mathematical problems with origins in the early 18th century. First posed in Königsberg, the original puzzle revolved around the town’s Pregel River.
Mathematical thinking is said to increase work efficiency and prevent aging.
Whether math is your bane or your forte, be sure to give this game a try.
You’re sure to get hooked on these puzzles!

Simple, Smart, Addictive, Challenging, Relaxing and Fun game. All in one place!

Features:

- Minimalist design: beautiful colors, awesome audio effects.
- Smart level design: more than 900 handcrafted smart levels.
- Relaxing atmosphere: rainbow colors and bubbles into the sea.
- 3 background colors: blue, purple and red.
- 13 Designs of Tiles: Rainbow, Ribbon, Flower & Emoji packs

## Key features

- One-line brain training puzzles
- Over 900 handcrafted levels
- Minimalist design with beautiful colors
- Awesome audio effects
- Relaxing atmosphere
- Multiple tile designs and background colors

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $3.99 | one-time |
| Tile Pack | $1.99 | one-time |



## Frequently asked questions about Fill the Rainbow

### 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.

## Version history (last 5 releases)

### 1.7 — 2026-08-22

New Daily Mode: 3 levels every day, increasing difficulty, and a unique gameplay twist.

### 1.6 — 2026-07-14

Minor bug fixes and performance optimizations

### 1.5 — 2025-11-05

Minor bug fixes and performance optimizations

### 1.4 — 2025-08-03

Fixed some bugs.

### 1.3 — 2024-12-11

Fixed some bugs.

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| [MathDoku X: Sudoku & Logic](https://appshunter.io/ios/app/mathdoku-x-sudoku-and-logic/id6759137802) | — | Free | Games |
| [UFO Rampage](https://appshunter.io/ios/app/ufo-rampage/id6760802265) | — | Free | Games |

## More apps by Viviana Baeza

- [Fill Multicolor: Line Puzzle](https://appshunter.io/ios/app/fill-multicolor-line-puzzle/id1664318413)
- [Swipepi: Relaxing Puzzle Game](https://appshunter.io/ios/app/swipepi-relaxing-puzzle-game/id6452879818)
- [ARROW: Minimalist Puzzle Game](https://appshunter.io/ios/app/arrow-minimalist-puzzle-game/id6462537314)
- [Powerful Motivational Quotes](https://appshunter.io/ios/app/powerful-motivational-quotes/id6462967132)
- [The Bible Verse of the Day](https://appshunter.io/ios/app/the-bible-verse-of-the-day/id6463644920)
- [ARROW Patterns](https://appshunter.io/ios/app/arrow-patterns/id6463950890)

All apps by Viviana Baeza: https://appshunter.io/developer/1664318415

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-23.*