Supported Features
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Differentiate Without Color Alone
Tetrahue: Colour Block Puzzle
Match Colour, Clear & Cascade
Only for iPhone
Free · In‑App Purchases
iPhone
New: Prism Mode. Blend color droplets to match the target shade, a premium color-mixing twist. Plus the Daily Challenge and endless mode. No timer. Play offline.
Tetrahue is a falling-block puzzle game whose twist is a rotating target colour you clear by grouping connected blocks. There is no time limit, no level cap, and no mid-game paywalls, just a single endless mode that you can play entirely offline.
Shapes descend from the top of the grid. There are two ways to clear them:
• Fill a complete row in any colours.
• Group six or more connected cells of the active target colour into a single region.
The target colour rotates between Cyan, Magenta, and Yellow. When a region clears, gravity drops every remaining group as a connected unit, which frequently triggers a chain reaction. Reading the board and setting up cascades is the core of the game.
DAILY CHALLENGE
A new seeded grid every day, with a rotating daily twist (for example, Double Cascade). Everyone plays the same board that day. Available to all players.
MODES AND FEATURES
• Endless mode: speed increases the longer you play; no timer, no level cap.
• Daily Challenge: a fresh seeded board and twist each day.
• Mirror Mode: left and right controls are flipped for an added challenge.
• Prism Mode: blend colour droplets to create and clear the target shade, a colour-mixing twist on the core game.
• Colour-blind support: Block Patterns overlay a distinct shape on each colour, including every Prism shade.
• iCloud Save: your progress and unlock follow you across devices on the same Apple ID.
• Offline play: the full game runs without a network connection.
CONTROLS
Drag to slide a piece, tap to rotate, swipe up to hold the active piece.
PREMIUM UNLOCK (one-time, non-consumable)
• Removes interstitial and rewarded ads
• Adds one free revive per game
• Records lifetime statistics
• Unlocks Mirror Mode
• Unlocks Prism Mode
The free version is ad-supported. Rewarded ads provide optional access to the same extras without the one-time purchase, including a single game of Prism Mode per rewarded ad watched.
Designed by Refractor Games.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Prism Mode now uses additive light mixing: a clearer and more intuitive blend rule.
• Drop Red, Green, or Blue. Touching pairs become Yellow, Magenta, or Cyan.
• All three primaries together form White, which only clears by completing its row.
• Classic and Daily play keep the original Cyan, Magenta, and Yellow palette.
• The Prism tutorial is larger, centred on screen, and has a clearer way to advance.
Translations refreshed across ten languages.
The developer, Daniel Hughes, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
- Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
The developer indicated that this app supports the following accessibility features. Learn More
Information
- Seller
- Daniel Hughes
- Size
- 32.9 MB
- Category
- Puzzle
- Compatibility
Requires iOS 14.0 or later.
- iPhone
Requires iOS 14.0 or later. - iPod touch
Requires iOS 14.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Tetrahue Premium $2.99
- Copyright
- © 2026 Daniel Hughes