Preparo vs SPARK Developer Exam Prep
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Preparo
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Preparo is a FREE interview tracking and AI-assisted preparation app. The Easy Way to DSA. Track your progress through 75 tried and tested DSA problems. Use the inbuilt timer to simulate real-world DSA interviews. Get a hint if you’re stuck, go through the solution after your attempt in the language of your choice or sit back and watch a video solution for the problem, all from within the app. With AI, You Never Start From 0. Save previously faced interview questions to give you a head start for the next interview. Fret not if it’s your first interview, AI will generate as many questions as you want. Be One Step Ahead of Schedule. Focus on the prep as Preparo takes care of reminding you to revise or nudges you minutes before an interview with your interview notes. Get timely reminders to store the questions you faced in the interview. You don’t have to leave the app for answers - AI will do it for you at the tap of a button. ExportInterviewExperience.pdf Easily share your round- or keyword-filtered breakup of questions as a PDF with your friends. Accessible by Default Experience the app in different text sizes and in light and dark modes for a truly native experience. Notes Before and After the Interview Save your to-do list to remind yourself to fill the water bottle on your desk or check your Meet permissions for a seamless interview experience. Journal your thoughts after an interview to learn from your experience later on. Prep Across Devices Sync your progress across devices using iCloud.
SPARK Developer Exam Prep
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PASS YOUR DATABRICKS CERTIFIED ASSOCIATE DEVELOPER FOR APACHE SPARK EXAM Master big data engineering with 500+ practice questions designed to get you certified on your first attempt. 500+ practice questions 5-minute study sessions Track your progress Remove mastered questions Text-to-speech support Dark mode available WHY GET CERTIFIED? Databricks-certified data engineers earn up to $203K annually (Skillsoft 2024). Organizations worldwide rely on Apache Spark to process petabytes of data, making this certification your gateway to high-demand big data roles. WHAT YOU'LL MASTER: • Apache Spark architecture with driver and executor components • PySpark DataFrame API including transformations and actions • Spark SQL operations with temporary and global views • DAG optimization and Catalyst query optimizer internals • Narrow vs wide transformations and their performance impacts • Shuffle operations and partition-level data movement • Unified Memory Model for execution and storage management • Partition tuning strategies for optimal cluster utilization • Structured Streaming for real-time data processing • Spark Connect for client-server architecture patterns • Pandas API on Spark for distributed Python workflows • SparkSession and SparkContext configuration best practices • Executor memory and core allocation strategies • Performance troubleshooting with Spark UI and metrics • Broadcast joins, coalesce, and repartition operations STUDY ANYWHERE: Coffee breaks. Commutes. Lunch hours. Turn dead time into Apache Spark expertise. Download now. Pass your exam. Master big data engineering.
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Verdict
The clearest difference is update cadence: Preparo at every 3 weeks against SPARK Developer Exam Prep's every 4 months. SPARK Developer Exam Prep's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Preparo ships an update every 3 weeks, SPARK Developer Exam Prep every 4 months. The most recent releases landed on October 24, 2026 and October 23, 2026 respectively.
| Parameter | Preparo | SPARK Developer Exam Prep |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Gowtham Ravichandran | Davy Raitt |
In-app purchases
Preparo
No in-app purchases
SPARK Developer Exam Prep
No in-app purchases
Questions
Is Preparo free?
Is SPARK Developer Exam Prep free?
Do Preparo or SPARK Developer Exam Prep have ads?
Which is updated more often, Preparo or SPARK Developer Exam Prep?
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