Comparison

flwr.app vs CDL Prep

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

flwr.app

This app offers a fun and interactive way to learn new languages through reading. It presents books sentence by sentence, allowing users to translate unknown words or entire sentences for better comprehension. Available in multiple languages, it makes language acquisition engaging.

Highlights
  • Bilingual book reading
  • Sentence-by-sentence translation
  • Word translation
  • Multiple language support
  • Interactive learning
Read full description

Flower is a simple app for reading bilingual books. Here you read a book sentence by sentence. If you come across an unknown word, you translate it. And if you can't understand the meaning of the sentence, you translate the whole sentence. Sounds easy? Install the app and see for yourself. Available languages: English, French, German, Italian, Russian, Spanish, Greek, Portuguese.

About

CDL Prep

Prepare for your Commercial Driver's License (CDL) test with this comprehensive iOS study tool. It offers practice exams, flashcards, and detailed explanations to help you master all sections of the CDL test, including general knowledge, hazardous materials, and air brakes.

Highlights
  • Extensive study materials
  • Practice exams and simulations
  • Hundreds of test questions
  • Flashcards
  • Detailed explanations
  • Customizable practice tests
  • Progress tracking
Read full description

CDL Prep App is an invaluable tool for anyone looking to pass their Commercial Driver’s License (CDL) test. Designed exclusively for iOS devices, this app provides an extensive collection of study materials, practice exams, and essential tools to help you master the CDL test in no time. The app’s user-friendly interface makes studying on-the-go a breeze. It consists of hundreds of test questions, flashcards, and test simulations crafted by professional driving instructors. These questions cover all sections of the CDL test like general knowledge, hazardous materials, air brakes, and more. With the detailed explanations for every question, you’ll get a deep understanding of the subject matters and learn how to avoid common pitfalls. One of the standout features of this app is the customizable practice tests, allowing you to focus on particular subjects you’re struggling with. The app keeps a record of all your attempts, enabling you to track your progress and identify areas where you need improvement. Benefit from frequent updates, ensuring you're studying with the most up-to-date information, as regulations or rules may change over time. Some features, such as exams or topics beyond the basic levels of general knowledge or pre-trip information, may require an active subscription. Privacy Policy: https://btnotifier.com/privacy Terms: https://btnotifier.com/terms

Screenshots

flwr.app4 screens
CDL Prep4 screens

Verdict

The call

flwr.app and CDL Prep both sit at 4.7 stars, but that hides the real split: 82% of flwr.app's written reviews are positive against 25% of CDL Prep's. flwr.app also leads on update cadence (every 3 weeks vs every 5 months). On price, rating, ratings volume and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. flwr.app sells 1 in-app purchase, starting at $1.00 per month and CDL Prep sells 4 in-app purchases, starting at $19.99 per 3 months. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for flwr.app against 4.8 for CDL Prep. Both are backed by a comparable volume of ratings — 186 and 375 respectively. Written reviews are what separate them: 82% of flwr.app's written reviews are positive against 25% of CDL Prep's.

UpkeepUpdate frequency

flwr.app ships an update every 3 weeks, CDL Prep every 5 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 8 level
flwr.app versus CDL Prep: the parameters behind the verdict, then further details
Parameterflwr.appCDL Prep
PriceFreeFree
Rating4.7 (186 ratings)4.8 (375 ratings) — better
Positive reviews82.1% of reviews — better25.0% of reviews
Number of ratings186375 — better
Update frequencyEvery 3 weeks — betterEvery 5 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPodiPhone, iPod
Requires iOS12.412.4
Further details — not scored
Size24 MB25 MB
Age rating4+4+
DeveloperGrigory PushkovNurlan Kasabulatov

Customer experience

flwr.app

All ratings180 ratings
Positive88.9%
Neutral6.1%
Negative5.0%
Written reviews78 reviews
Positive82.1%
Neutral7.7%
Negative10.3%

CDL Prep

All ratings360 ratings
Positive93.3%
Neutral3.6%
Negative3.1%
Written reviews4 reviews
Positive25.0%
Neutral0.0%
Negative75.0%

In-app purchases

1 purchases

flwr.app

Subscriptions1
  • Monthly subscription$1.001 Month
4 purchases

CDL Prep

Subscriptions3
  • CDL Prep Test 2023 Premium$19.993 Months
  • CDL Prep Test 2023 Annual$29.991 Year
  • CDL Prep Premium7 Days trial$39.991 Year
One-time1
  • CDL Prep Test 2023 Lifetime$99.99

Questions

Is flwr.app free?
flwr.app is free to download, with in-app purchases available.
Is CDL Prep free?
CDL Prep is free to download, with in-app purchases available.
Which has better reviews, flwr.app or CDL Prep?
CDL Prep is rated higher. flwr.app averages 4.7 out of 5 from 186 ratings, while CDL Prep averages 4.8 from 375 ratings.
Do flwr.app or CDL Prep have ads?
Neither flwr.app nor CDL Prep shows ads.
Which is updated more often, flwr.app or CDL Prep?
flwr.app ships an update every 3 weeks, and CDL Prep every 5 months. Most recently, flwr.app was updated on October 29, 2026 and CDL Prep on October 24, 2026.

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