Comparison

Simplex Spelling Phonics 1 vs Flaggle.io

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Simplex Spelling Phonics 1

This app uses a scientifically validated phonics approach to improve spelling skills. It teaches fundamental spelling patterns, sounds, and rules through structured lessons and high-frequency words, aiming to build long-term literacy and confidence.

Highlights
  • 450+ high-frequency words
  • 42 instructional phonics lessons
  • Spelling pattern and difficulty organization
  • Reverse phonics approach
  • Contextual spelling rule hints
  • Letter-by-letter feedback
  • Starting assessment test
Features
Read full description

Scientifically validated as a highly effective approach to improving spelling skills through our phonics approach. A published study revealed that students demonstrated an average spelling improvement of 1.9 grades among children in a classroom setting who regularly used Simplex Spelling over a 18 week period. The largest student improvement observed over the same time period was 4.4 grade levels as assessed by administering the Schonell Spelling Test. Linda Chmiliar, "Improving the Spelling Skills of Students with Learning Disabilities using Apps on the iPad", International Journal of Technology and Inclusive Education, pp. 962-971. Special Issue Volume 3, 2016. Simplex Spelling Phonics 1 teaches a full year of spelling curriculum with over 450 high frequency words divided into 42 lists that are organized by spelling patterns and difficulty levels. Each of the 42 lists comes with a lesson that teaches one of the basic building blocks of spelling in the English language. These basic building blocks include the different phonograms, sounds, and spelling rules. Our spelling lists focus on some of the highest frequency words in the English language to help students establish a base foundation of literacy and confidence with spelling and reading. Students learn a new concept for each lesson building on the skills learned from previous lessons. Simplex Spelling Phonics 1 guides the student and acts as a personal spelling coach with every word, while teaching "how to spell" English words. Memorization may be sufficient to pass a spelling test, but it often does not transfer into good long term reading and spelling skills. Our goal with Simplex Spelling Phonics 1 is to not only teach a list of words, but to teach students “how to spell” these words, thus building long term skills that can be used for over 84% of the words in the English language that follow phonetic patterns. Many studies show that students who learn to read through phonics have a higher level of literacy than students who learn to read by using flash cards and the whole word approach. Also, that not all readers are good spellers, but almost all good spellers are also good readers. This is why Simplex Spelling's comprehensive unique phonics approach to spelling really works to create both better spellers and better readers. Note: Now supports both North American and British accents.
 Note: You can not create your own spelling lists. Features: 
 - Over 450 high frequency words to help build literacy. 
 - A starting assessment/placement test. - Review lists. - 42 instructional lessons teach phonics, phonograms, and spelling rules. 
 - 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.
 - Letter by letter feedback system provides immediate feedback. 
 - Guaranteed success on every word. 
 - Support for 40 user accounts. 
 - Export and email student progress reports. - Remembers each user’s progress in every list. - User stats screen to see mastered words and words that require further practice. 
 - Supports both upper and lower case letters.
 - Supports both alphabetic and QWERTY keyboard layouts.
 - Supports US, UK and Canadian English spelling of words. - Featured previously by Apple in New & Noteworthy, What's Hot, Words for the Wise and Spelling & Grammar. - Honorable mention in the 2012 Best App Ever Awards - Best Special Needs App. - AppsforHomeschooling (5/5, Golden App Award, 2011 Readers Choice Award) - Academics' Choice Award - Parents' Choice Award Privacy Disclosure: - No 3rd party ads - Does not share any data - No In-App purchases - Contains child protected links in app to developer's website for additional information, support and teaching tips. - Contains child protected link to developer email support. COPPA Compliant 
https://pyxwise.com/privacy-policy/

About

Flaggle.io

Test your knowledge of national and territorial flags. Identify a mystery flag with limited guesses, using color comparisons to narrow down possibilities. Study your history to improve recognition skills.

Highlights
  • Identify flags of UN member states and other territories
  • Visual color comparisons after each guess
  • Searchable country and flag list
  • Focused gameplay
  • No accounts, ads, or tracking
Features
Read full description

Think you know flags? Flaggle challenges you to identify a mystery flag in as few guesses as possible. After each incorrect guess, your flag is compared with the answer, revealing where their colors match. Study your guess history to narrow down the possibilities and identify it. Features: • Flags of all 195 UN member and observer states • Flags of 60 other territories and nations • Visual color comparisons after every guess • Searchable country selection and flag list • Simple, focused gameplay • No accounts, advertisements, or tracking Whether you’re a vexillology veteran or just starting to learn, Flaggle is a great way to test your knowledge and sharpen your recognition skills. Good luck and have fun!

Screenshots

Simplex Spelling Phonics 14 screens
Flaggle.io4 screens

Verdict

The call

The clearest difference is price: Flaggle.io at Free against Simplex Spelling Phonics 1's $4.99. Flaggle.io also leads on rating (5.0 vs 4.0) and update cadence (every 3 days vs every 5 months). Simplex Spelling Phonics 1's advantage is ratings volume (23 vs 1). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Flaggle.io is free to download; Simplex Spelling Phonics 1 costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Flaggle.io holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Simplex Spelling Phonics 1 has 23 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Simplex Spelling Phonics 1 ships an update every 5 months, Flaggle.io every 3 days. The most recent releases landed on October 14, 2026 and October 6, 2026 respectively.

Scorecard5 real differences · 5 level
Simplex Spelling Phonics 1 versus Flaggle.io: the parameters behind the verdict, then further details
ParameterSimplex Spelling Phonics 1Flaggle.io
Price$4.99Free — better
Rating4.0 (23 ratings)5.0 (1 ratings) — better
Positive reviews81.4% of reviews—
Number of ratings23 — better1
Update frequencyEvery 5 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size191 MB72 MB
Age rating4+4+
DeveloperPyxwise Software Inc.Joshua Velazquez

Customer experience

Simplex Spelling Phonics 1

All ratings23 ratings
Positive69.6%
Neutral8.7%
Negative21.7%
Written reviews43 reviews
Positive81.4%
Neutral4.7%
Negative14.0%

Flaggle.io

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Simplex Spelling Phonics 1

No in-app purchases

None

Flaggle.io

No in-app purchases

Questions

Is Simplex Spelling Phonics 1 free?
Simplex Spelling Phonics 1 costs $4.99, with no in-app purchases.
Is Flaggle.io free?
Flaggle.io is free to download, with no in-app purchases.
Which has better reviews, Simplex Spelling Phonics 1 or Flaggle.io?
Flaggle.io is rated higher. Simplex Spelling Phonics 1 averages 4.0 out of 5 from 23 ratings, while Flaggle.io averages 5.0 from 1 ratings.
Do Simplex Spelling Phonics 1 or Flaggle.io have ads?
Neither Simplex Spelling Phonics 1 nor Flaggle.io shows ads.
Which is updated more often, Simplex Spelling Phonics 1 or Flaggle.io?
Simplex Spelling Phonics 1 ships an update every 5 months, and Flaggle.io every 3 days. Most recently, Simplex Spelling Phonics 1 was updated on October 14, 2026 and Flaggle.io on October 6, 2026.

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