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Planet Lettra Spelling & Phonics Practice & Play

By Gregory McDonald

This app is only available on the App Store for iOS devices.


Bumping bubbles magically build words or invent your own to feed the silly creatures on Planet Lettra. Kids love this app for experimenting with word building and hearing what they've made.

*** "Outstanding" --- 5/5 "Best of the Best"

*** "The open-ended platform allows kids full freedom to explore and empowers them to find words all on their own."

Imagine a set of letter blocks that your child can arrange any way they want and hear what they've built, blocks that guide your child in building the most important sight words for reading fluency and give him or her lots of exposure to important letter blends, blocks that even form words all by themselves. That's Planet Lettra.

You can even go below the planet surface, into the belly of Lettra, to see the real words you've already fed to the Munchers, hear them read aloud individually or one after the other. Or rearrange the word bubbles to make silly sentence.

Whatever your child or student's age or reading ability, this app has plenty to discover and play with: green and purple Munchers that love to eat words, silly costumes, musical patterns, creatures with other special powers and more.

In classrooms and special ed settings, educators use Planet Lettra to scaffold student learning in spelling and phonics. Special pink bubbles can be assigned values in the Settings area and used to work on building words with specific parts (practice specific blends or rhymes).


• Play in English, French or Spanish
• A short video tour of the planet introduces new travellers to Planet Lettra and guides them in playing with the bubbles and creatures
• Planet Lettra recognizes over 100,000 words in each supported language.
• Words important to reading fluency (about 1000) are formed more easily and more often.
• The sound environment is musical, soothing and non-repetitive.
• Experiment and play without stress: there are no time limits, no levels to complete, no points to accumulate, no in-app purchases

Studio Goojaji is a participant of the Know What's Inside(R) program for Family Friendly Developers. For more information, visit

-- Winner of a Children's Technology Review Editors Choice Award (2016)

-- School Library Journal ( "Children will be delighted to discover that double tapping on a bubble triggers the narrator to pronounce it, even if it is an invented word. This app supports word recognition as “smart” letter bubbles (when users hold down a bubble) hint at combinations that lead to real terms. The real joy here is in playfully discovering what letters can do.

-- Educational App Store Certified, 4 stars, "This app is great for experimenting with word building and hearing what you have made. The app supports fantastic graphics and a unique playing experience."

What's New in Version 2.3.2

Please take a moment to RATE and REVIEW Planet Lettra on the App Store (or update your rating for the new version).

- fixed bug where touch was moving sleeping potion bubble that was nowhere near the touch
- fixed minor bugs related to text-to-speech
- added speech rate control to iPad Settings, just in case...

For any questions or comments, please email me at . I'd love to hear from you.


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Planet Lettra Spelling & Phonics Practice & Play
View in iTunes
This app is designed for both iPhone and iPad
  • $2.99
  • Category: Education
  • Updated:
  • Version: 2.3.2
  • Size: 128 MB
  • Languages: English, French, Spanish
  • Seller:
Rated 4+
  • Made for Ages 6–8

Compatibility: Requires iOS 8.1 or later. Compatible with iPhone, iPad, and iPod touch.

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