Comparison

Decoding Chart vs Knowre Math

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

Head to head
About

Decoding Chart

This app is part of a reading and writing curriculum designed for beginning readers or those who have struggled with literacy. It helps children transition from recognizing sounds to understanding letter spellings, using color-coded charts to guide them.

Highlights
  • Sound-to-letter decoding
  • Color-coded spelling guidance
  • Frequency-based spelling order
  • Part of a comprehensive reading program
  • Supports beginning readers
Features
Read full description

Center for Innovation in Education Decoding Chart - Flip Dekodiphukan Description The tenth of the fourteen apps that comprise the Baratta-Lorton Reading Program. The Reading Program is a reading and writing curriculum for beginning readers and any child who has already experienced difficulty in learning to read. 99% unique – 100% effective - 100% free Background for the fourteen apps The Baratta-Lorton Reading Program also known as Dekodiphukan (pronounced decode if you can) was developed by the Center for Innovation in Education whose many other offerings include Mathematics Their Way, the first non-traditional math curriculum adopted in by the State of California. Dekodiphukan has been in use in classrooms across the United States and Canada since 1985. The Program has been used to teach thousands of children to read and to write regardless of background or supposed lack of reading readiness. To date, no child using the program in a classroom setting has ever failed to learn to read or to write. This Dekodiphukan reading and writing curriculum is now a series of fourteen apps plus a parent-guide for the iPad that, within a period of six months to a year (or occasionally a bit longer for some special needs children), will enable every child using it to read and to write. Reading with enjoyment. Writing creatively. Decoding Chart - FLIP The tenth of the Fourteen Apps The Decoding Chart converts words written in sounds to words written in letters.  It is the vehicle for transitioning the child from sounds to letters.  Its use is introduced once the child can comfortably read and write phrases. The Chart contains the pictures of all forty-four sounds arranged in the same rows and in the same order within each row as they are in the Stamping app.  Beneath each sound picture are various ways that sound may be spelled.  The spellings listed beneath each sound appear in order of frequency of occurrence in the words which beginning readers are most likely to encounter. Each of the spellings that appear beneath the sound pictures are color coded.  The first spelling of each sound is coded white.  If a second spelling is listed, it is coded yellow.  Third spellings are red, fourth spellings are blue, fifth are green, sixth are brown, and seventh are purple.  The color codings indicate to the child which spelling is to be used to write the letters for a word. The Decoding Chart does not contain all possible spellings for each sound.  It does, however, contain the spellings that appear in ninety-five to ninety-eight percent of the words the child will encounter while learning to read and write. A parent guide to how to use the Decoding Chart is included in The Guide instructions for the Writing Worksheets. Two Apps and the Decoding Chart Download Chart – Levels The Decoding Chart-Levels app displays the chart in five different levels, each level matching one of the five levels of the Reading Program. Chart - Flip The Decoding Chart-Flip app displays half the chart on one side and half on the other side of a flip view. Download While the Decoding Chart is available in two app formats and moving between apps is possible with a double-click of the Home button on the iPad, the double-clicking process may not be easily managed by the child. A more child-accessible version of the Decoding Chart can be downloaded from the Center’s website and printed out. Decoding Chart Converts words in sounds to words in letters Introduced once the child can comfortably read phrases Available in two different app forms Also downloadable from the Center’s website Instructions for its use are included in The Guide’s Writing Worksheet instructions

About

Knowre Math

This app offers a standards-aligned online math supplement for grades 1-12. It identifies and addresses individual learning gaps using personalized curricula and continuous assessment, supporting both students and teachers with actionable data.

Highlights
  • Standards-aligned curriculum
  • Individual learning gap identification
  • Personalized curricula
  • Continuous assessment
  • Teacher dashboard with actionable data
  • Interactive and scaffolded support
Features
Read full description

Knowre Math is a 1st through 12th grade, standards aligned, online core supplement that identifies and addresses each student's individual learning gaps through Knowre's proprietary Walk Me Through technology, personalized curricula, and continuous assessment. Knowre Math supports teachers by seamlessly integrating into the classroom to provide actionable data on skill mastery and learning gaps across curricula, classrooms and individual students. Knowre believes that all students can be successful -- that students don't hate math, they hate being frustrated. We're here to change that. About Knowre: Knowre is an education technology company focused on delivering personalized learning to students around the globe. Knowre’s proprietary artificial intelligence technologies uses deep learning to identify individual student learning gaps, algorithmically generate curricula and deliver interactive, scaffolded support to fill those gaps. The beautifully designed, engaging, and fun digital environment enhance student learning, while educators receive comprehensive and actionable data via the Teacher Dashboard. Knowre partners with schools, private education companies, and other corporations around the world with the goal of helping students reach their full potential.

Verdict

The call

The clearest difference is update cadence: Knowre Math at every 5 weeks against Decoding Chart's every 71 months. Knowre Math also leads on ratings volume (6 vs 2) and iOS requirement (11.0 vs 15.6). Decoding Chart's advantage is rating (3.5 vs 3.2) and review sentiment (100% vs 80%). On price, ads, in-app purchases and monetization model 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Decoding Chart holds the better App Store score, 3.5 against 3.2. Both are backed by a comparable volume of ratings — 2 and 6 respectively. Written reviews point the same way: 100% of Decoding Chart's written reviews are positive against 80% of Knowre Math's.

UpkeepUpdate frequency

Decoding Chart ships an update every 71 months, Knowre Math every 5 weeks. The most recent releases landed on September 25, 2026 and October 5, 2026 respectively.

Scorecard5 real differences · 5 level
Decoding Chart versus Knowre Math: the parameters behind the verdict, then further details
ParameterDecoding ChartKnowre Math
PriceFreeFree
Rating3.5 (2 ratings) — better3.2 (6 ratings)
Positive reviews100.0% of reviews — better80.0% of reviews
Number of ratings26 — better
Update frequencyEvery 71 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPadiPad
Requires iOS15.611.0 — better
Further details — not scored
Size9 MB103 MB
Age rating4+4+
DeveloperBob Baratta-LortonKnowRe Americas Inc.

Customer experience

Decoding Chart

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Knowre Math

All ratings6 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

In-app purchases

None

Decoding Chart

No in-app purchases

None

Knowre Math

No in-app purchases

Questions

Is Decoding Chart free?
Decoding Chart is free to download, with no in-app purchases.
Is Knowre Math free?
Knowre Math is free to download, with no in-app purchases.
Which has better reviews, Decoding Chart or Knowre Math?
Decoding Chart is rated higher. Decoding Chart averages 3.5 out of 5 from 2 ratings, while Knowre Math averages 3.2 from 6 ratings.
Do Decoding Chart or Knowre Math have ads?
Neither Decoding Chart nor Knowre Math shows ads.
Which is updated more often, Decoding Chart or Knowre Math?
Decoding Chart ships an update every 71 months, and Knowre Math every 5 weeks. Most recently, Decoding Chart was updated on September 25, 2026 and Knowre Math on October 5, 2026.

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