Official Bus/Truck DTT-Ireland
by Prometric
- Education
- Paid
- Small & simple · 86
- Rating
- 5.0
- 5 ratings · UK storefront
- Last update
- Sep 10, 2026
- Version 2.0.29
- Size
- 66 MB
- Category
- Education
- Tracked since
- Oct 9, 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.
PASS YOUR TRUCK / BUS THEORY TEST FIRST TIME!
The only official theory test preparation app for truck and bus drivers.
New and updated, with the latest questions, improved question selection, richer progress tracking, new illustrations, more advanced question selection and an updated user interface. Features additional useful information including a full copy of The Rules of the Road
This Driver Theory Test learning app offers you unlimited access to the Official Driver Theory Test learning material for categories C (Trucks) and D (Buses) and also tracks your progress as you learn.
In addition, you will be able to complete Official Driver Theory Test sample tests, ensuring you are fully prepared and confident on the day of your theory test.
What’s new
Release notes for the latest version, as written by the developer.
Third party updates
Rank history
Daily position in the Ireland charts. #1 is at the top.
- Best rank
- #2
- Current rank
- #2
- 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.
86/100
Small & simple
- Developer size70% · 25
Developer: 2 apps on the charts
- Audience size100% · 20
Ratings: 5
- App size60% · 10
Size: 66 MB
- Price model100% · 15
Price model: paid
- Demand proof90% · 30
Best rank #1, 6 countries
An indicator, not a fact. We can't see team size. Calculated Oct 24, 2026 · method i2
How the score worksVersion history
- 2.0.29LatestReleased Sep 10, 2026