Skip to content

Learn to read - Crack the Code

by Minitutor

  • Education
  • Paid
  • Zombie
View on the App Store
Rating
4.3
103 ratings · Denmark storefront
Last update
Feb 13, 2025
Version 1.7.4
Size
66 MB
Category
Education
Tracked since
Oct 10, 2026

Estimated revenue

A model estimate with a likely range, not a reported figure.

No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.

How this estimate is made

Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.

Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.

Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.

Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.

Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.

Full method

Screenshots

As shown on the App Store listing.

About this app

Text from the App Store listing.

The purpose of Crack the Reading Code is to teach what is practical for reading:

  • Shape
  • Writing direction
  • Sound.

These are the foundations of reading.

Children can then acquire the essential knowledge that letters represent sounds, fit together and make words that have meaning.

The content has been developed by experienced Danish teachers and special education teachers - A supplement to writing textbooks and reading education

Use the app for 10 minutes at home with your child or at school to add variety to the first daily reading practice.

Children in kindergarten who are curious about letters will also think it's exciting.

  • THE SOUND OF THE LETTERS BEFORE THE NAMES.

Children often learn the names of the letters instead of the sound of the letters. This means that they must apprehend something that they cannot use for their further reading. Often, they will have to relearn it when they are shown sounds at school that they have to use to read.

Broadly speaking, they have no use for the letter names in the initial stages of reading.

Crack the Reading Code uses exclusively letter sounds.

  • THE 120 MOST USED WORDS AS WORD PICTURES.

Many of the 120 most used words are not spelled as they sound. Therefore, it is a big help to recognize these as word pictures.

Children won't be forced to sound it out here, but instead just recognize the word like they recognize their own name or that a big yellow M means McDonald's.

That is why these 120 are trained as word pictures in Crack the Reading Code.

Uppercase letters for the intermediate learner.

Many children first learn the 'big letters'. Of course, these must also be learned, but it should happen only when the child already recognizes the 'small letters.'

It is easier to relate to one shape per sound than two.

When they have learned the lowercase letters, they can already recognize the letters in the books they must read.

Switching between the 'lowercase' and 'uppercase' in 'Settings.'

Settings:

  • Turn the music in the menus on/off
  • Hide the text direction. Hiding the text direction increases the level of difficulty.
  • Switch between uppercase and lowercase letters.

We recommend that you only change to 'big letters' when the 'small letters' have been successfully learned.

Target audience:
4 - 10 years (those who can't read or have a hard time doing so).

What’s new

Release notes for the latest version, as written by the developer.

v1.7.4

Small bug fixes and improvements.

Rank history

Daily position in the Norway charts. #1 is at the top.

Best rank
#4
Current rank
#4
Days charting
7 of 7

On the charts today

Small & simple score

How realistic it is for a small team to build something like this.

59/100

Not flagged as small & simple

  • Developer size10% · 25

    Developer: 4 apps on the charts

  • Audience size– · 20

    No data, weight redistributed

  • App size60% · 10

    Size: 66 MB

  • Price model100% · 15

    Price model: paid

  • Demand proof80% · 30

    Best rank #4, 3 countries

An indicator, not a fact. We can't see team size. Calculated Oct 24, 2026 · method i2

How the score works

Version history

  • 1.7.4LatestReleased Feb 13, 2025