# SQLPrep: Learn SQL & Practice — Interview Questions & Prep

> Interview Questions & Prep (iPhone/iPad app by CHENG QIAO.)

- Source: https://appshunter.io/ios/app/sqlprep-learn-sql-and-practice/id6789642554 (this page in markdown: same URL + `.md`)
- Developer: [CHENG QIAO](https://appshunter.io/developer/6789642556)
- Category: Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.1 · 27 MB
- Languages: American English
- Released: 2026-07-29
- Data updated: 2026-08-05
- User reviews in markdown: https://appshunter.io/ios/app/sqlprep-learn-sql-and-practice/id6789642554/reviews.md

## What is SQLPrep?

SQLPrep helps data analyst candidates practice SQL in the minutes between real responsibilities.

Work through daily multiple-choice drills, then write real queries against bundled SQLite databases. Every exercise runs locally on your device, so practice is fast, private, and available without an account or internet connection.

What you can practice:

- SELECT, WHERE, ORDER BY, and LIMIT
- Aggregate functions, GROUP BY, and HAVING
- JOIN basics and advanced JOIN patterns
- Subqueries, CASE, and NULL handling
- Window functions
- Mixed interview-style SQL problems

SQLPrep is built for focused interview preparation. It avoids streak pressure, mascots, ads, subscriptions, and account setup. Instead, you get a local practice log, chapter readiness percentages, structured query diagnostics, and a clean dark interface designed for serious study.

Free practice includes Chapter 1, the first 5 SQLite exercises, and a daily quiz allowance.

Unlock Full Practice Library is a one-time purchase that unlocks the full local bank: 200 interview questions and 60 SQLite exercises. No subscription.

Download SQLPrep and run your first real query in under a minute - no account, no internet required.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Unlock Full Practice Library | $12.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-07-29

No release notes.

## More apps by CHENG QIAO

- [MedTerms: Medical Terminology](https://appshunter.io/ios/app/medterms-medical-terminology/id6790740392)
- [Woodwise: Wood Identifier](https://appshunter.io/ios/app/woodwise-wood-identifier/id6790928169)

All apps by CHENG QIAO: https://appshunter.io/developer/6789642556

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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 2026-08-05.*