A to Z — Letter Merge Puzzle

Sliding tile alphabet puzzle

Free · In-App Purchases · Designed for iPad. Not verified for macOS.

Swipe to slide, match to merge — A+A=B, B+B=C, all the way to Z - now available on macOS. Swipe. Merge. Climb the alphabet. Zed is a beautifully simple sliding puzzle: swipe to slide the tiles, and two matching letters merge into the next one — A + A = B, B + B = C, all the way to Z. Easy to learn in seconds, genuinely hard to master. Watch the UP NEXT row to see what's landing on your next swipe, plan your merges, and don't let the board lock up. Reach Z and you've completed the alphabet. EIGHT WAYS TO PLAY • Easy, Medium & Hard — the classic climb, with tighter letters and more undos on Easy, scarcer matches and hidden previews on Hard. • Quick — a five-minute race for the highest score on a cramped 3 × 3 board. • Long — a marathon climb across a roomy 5 × 5. • Zen — no score, no game over. Just merging. Breathe. • Endless — no finish line: climb past Z to Z², Z³ and beyond. • Daily — one shared challenge a day. Every player in the world gets the same board and the same letters. Keep your streak alive — and turn on the evening reminder so you never lose it. New modes unlock as you play, so there's always a next milestone. MAKE IT YOURS • Six tile themes — Zed, Ocean, Sunset, Pastel, Vibrant and Mono. • Sound effects, ambient music and rich haptics, each with its own toggle. • A softly drifting background, or switch it off for something calmer. TRACK YOUR CLIMB • Top-10 leaderboards for every mode. • Lifetime stats: games played, merges, play time, best daily streak and your highest letter ever. • Everything syncs through iCloud, so a new iPhone picks up right where you left off. PLAY YOUR WAY • Undo your last moves (Easy, Medium and Hard). • Second Chance when the board locks up. • A saved game that's always waiting exactly where you left it. • Full VoiceOver and Voice Control support. Zed is free to play. A single one-time purchase removes ads forever. How far down the alphabet can you get?

Ratings & Reviews

  • 5.0
    out of 5
    9 Ratings

General bug fixes and improvements.

Version 1.2.3

The developer, Chris Pearce, 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:

    • Usage Data

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Usage Data

Privacy practices may vary based, for example, on the features you use or your age. Learn More

The developer indicated that this app supports the following accessibility features. Learn More

  • Supported Features

    • VoiceOver

    • Voice Control

    • Dark Interface

Information

Provider
  • Chris Pearce
Size
  • 45.8 MB
Category
  • Casual
Compatibility
Requires iOS 26 or later.
  • iPhone
    Requires iOS 26 or later.
  • iPad
    Requires iPadOS 26 or later.
  • Mac
    Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
Languages
English and 8 more
  • English, Dutch, French, German, Italian, Polish, Portuguese, Spanish, Turkish
Age Rating
4+
In-App Purchases
Yes
Copyright
  • © 4B Studio 2026
  • Developer Website
  • Privacy Policy

    • Supports

    • Game Center

      Discover new games and play with friends. This game also features leaderboards and achievements.

    • Family Sharing

      Some in-app purchases and subscriptions may be shareable with your family group when Family Sharing is enabled. Learn More