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Simplex Spelling improves English spelling and reading skills in a fun and interactive way by combining a unique “reverse phonics” approach with contextually relevant spelling rules that explain why words are spelled in a particular manner. It works like a personal spelling coach with every word.

Simplex Spelling HD teaches the Dolch sight words to establish a base foundation in spelling and reading fluency.
Please check out the word lists on our website before purchasing to ensure they meet your learning requirements

Rather than using flash cards, Simplex Spelling enables the student to build each word. Students gain skills above and beyond the sheer memorization of words.

Simplex Spelling is great tool to have for kids learning to spell and read, remedial students, or those learning English as a second language.

Recommended for ages 5+.
Note: You can not create your own spelling lists in Simplex Spelling HD.

- All of the more than 300 Dolch Sight words to help build literacy.
- Words are spoken and used in a sentence to establish context.
- Introduction seamlessly leads a student through the application’s features by providing spoken information while having the student spell new words.
- Powerful phonics hint feature sounds out each word and provides a list of possible phonograms for each sound.
- A full “reverse phonics” approach that includes sounds made by all the different letter combinations.
- Contextually relevant spelling rule hints that help explain “how to spell” English words.
- Unique letter by letter feedback system that provides immediate feedback.
- Guaranteed success on every word.
- Support for multiple user accounts.
- User stats screen that allows you to see words that have been mastered and words that require further practice.
- Export & email student progress reports.
- Remembers each user’s position and progress.
- Supports both upper and lower case letters.
- Supports both alphabetic and QWERTY keyboard layouts.
- Supports both US, UK and Canadian English spelling.
- An approach that appeals to audio, visual and tactile learners.

- Placed 2nd in the 2011 Best App Ever Awards
- TheiPhoneMom Approved - 'If "tremendous" was a Dolch sight word then you would find it in Simplex Spelling HD and it would be right at home because this is a tremendous spelling app!'
- AppsforHomeschooling (earned 5/5 and a Golden App award) - "Simplex Spelling HD uses incredibly rich, educationally sound, and powerful tools to teach high frequency words."
- "Applicable2U has explored a number of spelling applications, and this is the best one yet."
- Technology in (Spl) Education - "Simplex Spelling – If you have Spelling Goals in your IEP, then this [is] the app for you."
- Kids Apps Awards (earned 5/5 and an Education Award)
- BestAppsForKids (4.5/5 editors choice) "one of the best spelling apps (maybe the best) in the app store at the moment."
- Mobile iEducator (4.5/5)
- Muslim Friendly Apps (Rated a Gold Apple)
- CrazyMikesApps (4.5/5)
- iPadAppsReviewer (4.5/5)
- The Daily App Show Featured App - “If you are looking for a great spelling app, feature packed for your iPad, Simplex Spelling HD is your app.”
- PadGadget Recommended (4/5)
- CommonSenseMedia (4/5)
- Lunchbox Reviews (5/5)
- Featured by Apple in "New & Noteworthy", "What's Hot" and "Grammar & Vocabulary"
- Editor's Pick Best10Apps

Privacy Disclosure:
- Does not contain 3rd party ads
- Does not share any data
- Does not contain In-App purchases
- Does not link to social media
- Contains in app links to view a safe enclosed version of the developer's website for additional information, support and teaching tips.
- Contains links to "email the developer questions" and rate the app

COPPA Compliant

What’s New

Version 3.7.0

Updated for iOS 13.1
Fixed screen layout issues on some newer iPhone models running iOS 13.1.

Ratings and Reviews

3.2 out of 5
5 Ratings

5 Ratings

angidazee ,

Problems in paradise 😔

Device: iPhone 4S, 64GB, iOS 6.1.2, AT&T, latest app version:

The app now begins to open, opens the title page, where all seems ok, and is visible, and then only goes to a black screen! Can you please fix dev? I've tried it on multiple iPhones of different iOS versions as well, all with the same result. The others I tried are iPhone 3GS, iOS 4.3, and iPod Touch (not the newest iPod, but the previous version?), iOS 6.1.3, on wifi. All give same results. Looking forward to a new and usable update! Thanks for the app!

LSAppleby ,

Simplex Spelling HD - Dolch Sight Words With Reverse Phonics is simply fantastic!

This app has over 200 high frequency Dolch words which students will be able to practice spelling through typing via an alphabetical or keyboard style letter grid. Mastery limits for each word may be set within the settings option and various students can be maintained at any given time. Consonants and vowels are differentiated via colour-coding, phonetic hints are offered, spelling words are given in sentence context, and statistical data is saved as the child progresses. There is a wonderful introduction provided within the app which offers hands on experience and I recommend using that section immediately after purchasing this app. It is fantastic and will no doubt help your child progress in their reading, spelling, and writing abilities! I told you it was fantastic!

MM's mommy ,

A perfect balance

I love all the Simplex apps. While I love that the words are sorted by phonetic pattern in the other apps (great for teaching principles of how spelling works), the beauty of this one is that it teaches the phonetic basis of the sight words young readers and writers need every day. Oddly, the other thing I love about this one is actually the lack of sorting by phonetic pattern. Some children simply memorize the particular pattern they need to use for a list, but don't generalize well to their daily work since they need a variety of patterns all at once. This app forces them to think about and apply a variety of phonetic patterns all within one list. I delightedly use both types of Simplex apps in my classroom. Different kids need different approaches at different times. Simplex provides awesome tools to help meet those diverse needs.

App Privacy

The developer, Pyxwise Software Inc., has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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