# CertBook: SQL & DBA

> CertBook: SQL & DBA (iPhone/iPad app by Tolga Saruslu.)

- Source: https://appshunter.io/ios/app/certbook-sql-and-dba/id6806663780 (this page in markdown: same URL + `.md`)
- Developer: [Tolga Saruslu](https://appshunter.io/developer/6806664022)
- Category: Education, Reference
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 5 MB
- Languages: American English, Russian, European Spanish, Turkish
- Released: 2026-09-05
- Data updated: 2026-10-03

## What is CertBook?

An offline study guide for Oracle database certifications. Unofficial; not
affiliated with Oracle Corporation.

WHAT'S INSIDE
• Chapters and sections organised separately for six exams
• Code examples, a catalogue of pitfalls and a quiz in every section
• Practice exams in the real exam format: same question count, same
  duration, same topic distribution
• A free sample exam — no purchase required
• A "My mistakes" list that collects the questions you got wrong
• A weakness map broken down by topic

HOW IT WORKS
All content lives on your device. No network requests, no required account,
no ads, no tracking. It works in airplane mode.

QUESTIONS THAT DON'T TEST MEMORISATION
Every question targets a failure mode. Distractors are derived from real
mistakes, and each explanation says not only why the right answer is right
but why the wrong ones are tempting.

PURCHASES
Full practice exams unlock with a one-time purchase. No subscription, no
auto-renewal.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| SQL Foundations Exams | $4.99 | one-time |
| Database Admin I Exams | $4.99 | one-time |
| Database Admin II Exams | $4.99 | one-time |
| AI Database Exams | $4.99 | one-time |
| Autonomous DB Exams | $4.99 | one-time |
| PL/SQL Development Exams | $4.99 | one-time |


## Is CertBook safe?

Not enough ratings yet to assess CertBook.

## Is CertBook legit?

CertBook: SQL & DBA has limited verification signals. The AppsHunter Legitimacy Score for CertBook is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 2 releases)

### 1.1 — 2026-09-07

Fixes a formatting issue where pass rates and scores showed the percent sign in the wrong position.

### 1.0 — 2026-09-05

No release notes.

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## More apps by Tolga Saruslu

- [Daymarker: Today in History](https://appshunter.io/ios/app/daymarker-today-in-history/id6811389653)

All apps by Tolga Saruslu: https://appshunter.io/developer/6806664022

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-03.*