To Kill a Mockingbird - notes
by Anh Nguyen
- Reference
- Paid
- Rating
- 0.0
- 0 ratings · Bolivia storefront
- Last update
- Jan 21, 2026
- Version 2.0
- Size
- 81 MB
- Category
- Reference
- 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 methodScreenshots
As shown on the App Store listing.
About this app
Text from the App Store listing.
This app combines the novel "To kill a mockingbird" by Harper Lee, with professional narration enabling advanced functions like sync transcript, read aloud (a professional narration synchronized with the highlighted text.)
Benefits of Read aloud feature:
- a valuable tool for people affected by reading disorders and dyslexia
- a useful tool for kids to learn reading or for people to learn a foreign language
- allowing everybody to enjoy their favourite novels by reading, listening or reading+listening
- ▪▪ Long press a word and tap "Play" to activate sync transcript
Basic features:
- Change font, font size
- Day and Night reading mode
- Highlight texts
- Read aloud
- 31 chapters
What’s new
Release notes for the latest version, as written by the developer.
We have improved the app's user interface and performance in this version.
Rank history
Daily position in the Belize charts. #1 is at the top.
- Best rank
- #9
- Current rank
- #9
- 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.
53/100
Not flagged as small & simple
- Developer size0% · 25
Developer: 7 apps on the charts
- Audience size– · 20
No data, weight redistributed
- App size60% · 10
Size: 81 MB
- Price model100% · 15
Price model: paid
- Demand proof70% · 30
Best rank #9, 4 countries
An indicator, not a fact. We can't see team size. Calculated Oct 25, 2026 · method i2
How the score worksVersion history
- 2.0LatestReleased Jan 21, 2026