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Lumi Letters Pro: ABC Phonics

by Guan Feng Lai

  • Education
  • Paid
View on the App Store
Rating
0.0
0 ratings
Top 88%among 33 Education apps
Last update
Oct 8, 2026
Version 1.3.6
Size
69 MB
Category
Education
Tracked since
Oct 23, 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.

Real phonics for little learners: hear the sound, spot it in the word, trace the letter.
Lumi Letters Pro takes children through 14 planets, 12 question types and 26 collectable letter friends. They listen for the initial, middle and end sound of a word, match capital and lower-case letters, and trace every letter along stroke guides. In the Parent Zone you can follow progress across four core skills and print a daily worksheet. No ads, no subscription, no data collection, and it works offline, ideal for nursery, reception and home learning.

  • Trace uppercase and lowercase letters with correct stroke order
  • Tap to hear letter sounds and phonics pronunciation
  • Planet challenge levels build focus and memory through play
  • Montessori-style activities for parent-child learning
  • No ads, works offline and feels safe for families

Start a sweet ABC learning journey today.

Pro edition includes the full calm ABC journey in one purchase, with no ads, offline play and privacy-first learning.

Optimised for iPhone Duo.

What’s new

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

v1.3.6

Optimised for iPhone Duo.

Improved how text is displayed across all languages, along with stability and performance improvements.

Rank history

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

Best rank
#1
Current rank
#4
Days charting
3 of 7

On the charts today

Small & simple score

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

45/100

Not flagged as small & simple

  • Developer size0% · 25

    Developer: 10 apps on the charts

  • Audience size– · 20

    No data, weight redistributed

  • App size60% · 10

    Size: 69 MB

  • Price model100% · 15

    Price model: paid

  • Demand proof50% · 30

    Best rank #1, 1 country

An indicator, not a fact. We can't see team size. Calculated Oct 25, 2026 · method i2

How the score works

Version history

  • 1.3.6LatestReleased Oct 8, 2026