PDE Pro Database Engineer vs Oplæs
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PDE Pro Database Engineer
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PASS YOUR PROFESSIONAL CLOUD DATABASE ENGINEER EXAM 500+ practice questions 5-minute study sessions Track your progress Remove mastered questions Text-to-speech support Dark mode available WHY GET CERTIFIED? Certified Google Cloud database engineers earn up to $203K annually (Skillsoft 2024). Professional Cloud Database Engineer validates expertise in designing, managing, and troubleshooting scalable database solutions. WHAT YOU'LL MASTER: Database capacity planning and performance tuning High availability with multi-regional and zonal strategies Database connectivity with networking and encryption Managed vs unmanaged services comparison SQL and NoSQL requirements for structured and unstructured data IAM and access management for database security Monitoring with query optimization and resource contention Backup and recovery with RTO, RPO, and PITR Cost optimization and scaling strategies Database migration with zero-downtime and fallback plans Replication strategies and read replicas Generative AI and LLM database use cases STUDY ANYWHERE: Coffee breaks. Commutes. Lunch hours. Turn dead time into database engineering expertise. Download now. Pass your exam. Master Google Cloud databases.
Oplæs
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Oplæs reads English and Danish text aloud in natural voices and highlights each word as you follow along. Free. No ads. No account – and all reading happens on your iPhone. LISTEN TO ANYTHING • PDFs, reports and course packs – scanned pages too • Articles from the web: tap Share in Safari and choose Oplæs • ePub books, text you paste and paper you photograph • Headers, page numbers, footnote numbers and web addresses are skipped FOLLOW ALONG WORD BY WORD • Each word lights up yellow, in time with the voice • Tap a sentence to read from there • Skip a sentence forward or back, or jump to a chapter • Large, calm type that’s easy to read – made for dyslexia, good for everyone VOICES THAT SOUND HUMAN • A natural English voice (Chatterbox by Resemble AI) • Mic and Nic: natural Danish voices from the CoRal project, recorded by Nota • Each paragraph is read by the voice for its language • On iOS 26, Oplæs listens to its own reading to make sure every word is said WHEREVER YOU ARE • 0.5× to 3× speed • Listen with the screen locked, on AirPods or in the car • Sleep timer and Lock Screen controls • Oplæs remembers where you left off YOUR TEXT IS YOURS The voices are downloaded once and then run on your iPhone. No account, no server reading along, no tracking. The app is in English, Danish, Japanese, German, French, Spanish and Korean. The voices read English and Danish. FREE. JUST ENJOY IT. The whole app is free, with every feature, no ads and no subscription. If you’re doing alright, you can become a supporter inside the app and get the show-off icons: extra app icons and a silly little game. Nothing gets locked, and freeloaders are still very welcome.
Screenshots
Verdict
The clearest difference is update cadence: Oplæs at every 5 days against PDE Pro Database Engineer's every 3 months. PDE Pro Database Engineer's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, ads and in-app purchases 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.
PDE Pro Database Engineer ships an update every 3 months, Oplæs every 5 days. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.
| Parameter | PDE Pro Database Engineer | Oplæs |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 30 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | Davy Raitt | Commanigy |
In-app purchases
PDE Pro Database Engineer
No in-app purchases
Oplæs
No in-app purchases
Questions
Is PDE Pro Database Engineer free?
Is Oplæs free?
Do PDE Pro Database Engineer or Oplæs have ads?
Which is updated more often, PDE Pro Database Engineer or Oplæs?
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