GCP Data Engineer Prep 2026
Professional Exam, Timed Test
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
The Professional Data Engineer exam asks you to think like the person who owns the pipeline — which sink, which windowing, which BigQuery layout, and why. Certisimo trains exactly that judgment, one exam-style question at a time.
WHAT'S INSIDE
• 200 exam-style questions across 4 practice sets, written for the Google Cloud Professional Data Engineer exam
• Covers what the exam covers: BigQuery, Dataflow, Pub/Sub, Dataproc, Bigtable, Cloud Composer and more
TRAIN, THEN TEST
Training mode gives you instant feedback as you answer. Test mode runs like the real thing: a countdown clock, no hints, a score at the end, and a review of everything you skipped or missed.
STOP GUESSING WHETHER YOU ARE READY
Your readiness score is computed from your own answers, so you always know how close you are — and what to do next.
EVERYTHING IN YOUR POCKET
• Save the questions that matter and annotate them with notes
• Search the entire bank instantly
• A complete history of every session you have run
• 100% offline, iPhone and iPad, light and dark — and no sign-up, ever
ALREADY BOUGHT THIS APP?
Premium is yours — free, forever. It unlocks by itself the first time you open this update: nothing to buy, nothing to restore, no account to create. Your saved questions, your notes and your full history are all still here.
GO FURTHER WITH PREMIUM
Certisimo Premium unlocks the full explanation behind every answer — why the right choice wins, not just which letter it was — plus unlimited exam simulations, the complete Insights breakdown (weak, hard, new and strong questions) and an ad-free experience.
• Weekly $5.99 · Yearly $34.99 with a 14-day free trial · Lifetime $79.99 one-time purchase
Download Certisimo and walk into the Data Engineer exam already knowing how it feels.
Certisimo is an independent study aid and is not affiliated with, endorsed by, or sponsored by Google LLC.
Weekly and Yearly Premium are auto-renewable subscriptions; Lifetime is a one-time purchase. Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current period. Payment is charged to your Apple ID account, and you can manage or cancel your subscription in your App Store account settings at any time.
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This update includes minor improvements.
The developer, SPIDER SERVICE SRL, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
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- Identifiers
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
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Accessibility
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Information
- Seller
- SPIDER SERVICE SRL
- Size
- 17.1 MB
- Category
- Education
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - iPad
Requires iPadOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Premium Lifetime $79.99
- Premium Yearly $34.99
- Premium Weekly $5.99
- Copyright
- © Spider Service SRL