CDL Prep Downloads & RevenueCDL Prep · App Store & Google Play
CDL Prep gets 1k+ downloads a day worldwide (AppInsider estimate, November 2026, rounded down to a band).
CDL Prep by Jeffrey Diaz is on App Store and Google Play. Active Users (MAU & DAU), Downloads, rankings, keywords, revenue, and rating totals.
Full timeline · 12 events
- ✏️CDL Prep: new iPad screenshotsiOS· US
- ✏️CDL Prep: new screenshotsiOS8 screenshots (was 8) · US
- 📦CDL Prep updated to version 9.14iOSMinor bug fixes and performance improvements. Added support for iPhone Duo.
- 📦CDL Prep: first update in 90 daysiOS
- 📦CDL Prep updated to version 9.14AndroidMinor bug fixes and performance improvements.
- 📈CDL Prep entered the top 100AndroidTop Free · Education · US
- 🆕CDL Prep first spotted by AppInsideriOS#85 in Top Free · Education · United States
- 🆕CDL Prep first spotted by AppInsiderAndroidUnited States
- 📦CDL Prep version 9.13iOSMinor bug fixes and grammatical corrections.
- 📦CDL Prep version 9.13AndroidMinor bug fixes and grammatical corrections.
- 🆕CDL Prep released on the App StoreiOS
- 🆕CDL Prep released on Google PlayAndroid
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Education FreeApp Store
App details
Google Play
App details
CDL Prep downloads & installs
Both stores, worldwide. Bands are open; exact numbers are free with an account.
| Store | Downloads / day | Lifetime installs |
|---|---|---|
| App Store | 100+ | – |
| Google Play | 500+ | 1M+ Measured |
| Total | 1k+ Confidence | 1M+ Confidence |
How this is calculated
Where CDL Prep's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Retention · share of new users still active
Time spent · per daily user
How this is calculated
Business model: Ad-led
How CDL Prep makes money: subscriptions, one-off purchases and ads.
Where it ranks now
Both stores, across every country we track.
| Store | Best rank | Charting in | US Top Free | US Top Grossing |
|---|---|---|---|---|
| App Store | #89 Education Free | 1 of 30 countries | #89 | – |
| Google Play | #113 Education Free | 1 of 23 countries | #113 | – |
Full chart lists: App Store · Google Play.
Review momentum
ⓘ How we measure thisReview momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
Ratings
Both stores. Store data, measured.
| Store | Rating | Ratings |
|---|---|---|
| App Store | 4.7 ★ | 7.1k |
| Google Play | 4.6 ★ | 5.8k 2.8k written reviews |
| Both stores | 4.6 ★ weighted by ratings | 13k |
About CDL Prep
Features:
1. Over 500 questions to practice with.
2. Exam Mode - 60 minutes to answer 50 randomly chosen questions, or 40 minutes to answer 20 to 30 questions on endorsement topics. At the end, review your score and any incorrect answers.
3. Practice Mode - Answer questions and receive instant feedback if you answered incorrectly.
4. Answer Randomization - Answers to questions will not always be in the same position.
Please send any feedback or request to: [email protected]. Thank you for reading, and good luck on your exams!
CDL Prep App Store
CDL Prep gets 1k+ downloads a day worldwide (AppInsider estimate, November 2026, rounded down to a band).
CDL Prep is #89 in Education Free in United States and charting in 1 of 30 countries we track.
Updated 11 Nov 2026 · rankings refresh through the day
25 Sep 2026 Education FreeCDL Prep on the App Store
App details
CDL Prep downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Where CDL Prep's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Retention · share of new users still active
Time spent · per daily user
How this is calculated
Business model: Ad-led
How CDL Prep makes money: subscriptions, one-off purchases and ads.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| United States | EducationFree | #89 |
Apps near CDL Prep on the chart
Education Free, around #89.
Ratings
App Store, worldwide.
Review momentum
ⓘ How we measure thisReview momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About CDL Prep
Features:
1. Over 500 questions to practice with.
2. Exam Mode - 60 minutes to answer 50 randomly chosen questions, or 40 minutes to answer 20 to 30 questions on endorsement topics. At the end, review your score and any incorrect answers.
3. Practice Mode - Answer questions and receive instant feedback if you answered incorrectly.
4. Answer Randomization - Answers to questions will not always be in the same position.
Please send any feedback or request to: [email protected]. Thank you for reading, and good luck on your exams!
Latest updates
Store changes
What CDL Prep changed on its store page: name, icon, screenshots, price, size, languages, requirements.
CDL Prep Android
CDL Prep gets 1k+ downloads a day worldwide (AppInsider estimate, November 2026, rounded down to a band).
CDL Prep is #113 in Education Free on Google Play in United States and charting in 1 of 23 countries we track.
Updated 11 Nov 2026 · rankings refresh through the day
Education FreeCDL Prep on Google Play
App details
CDL Prep downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Where CDL Prep's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Retention · share of new users still active
Time spent · per daily user
How this is calculated
Business model: Ad-led
How CDL Prep makes money: subscriptions, one-off purchases and ads.
Where it ranks on Google Play
Every top 200 chart it appears in across 23 countries.
| Country | Charts | Rank |
|---|---|---|
| United States | EducationFree | #113 |
Apps near CDL Prep on the chart
Education Free, around #113.
Ratings
Google Play, worldwide.
Review momentum
ⓘ How we measure thisReview momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About CDL Prep
Features:
1. Over 500 questions to practice with.
2. Exam Mode - 60 minutes to answer 50 randomly chosen questions, or 40 minutes to answer 20 to 30 questions on endorsement topics. At the end, review your score and any incorrect answers.
3. Practice Mode - Answer questions and receive instant feedback if you answered incorrectly.
4. Answer Randomization - Answers to questions will not always be in the same position.
5. Performance tracking - Review your performance on every question. Red = You have an average score less than 70%, Orange = You have an average score between 70-89%, Green = You have an average score of 90% and above.
Please send any feedback or request to: [email protected]. Thank you and good luck on your exams!