# DEVijx — Test your developer knowledge

> Test your developer knowledge (iPhone/iPad app by Maksim Efremov.)

- Source: https://appshunter.io/ios/app/devijx/id6818707336 (this page in markdown: same URL + `.md`)
- Developer: [Maksim Efremov](https://appshunter.io/developer/1842666296)
- Category: Education, Developer Tools
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: American English, Russian
- Released: 2026-10-29
- Data updated: 2026-10-30

## What is DEVijx?

DEVijx is a Duolingo-style trainer for backend developers. Every lesson is built from a real interview question: six or seven tiny questions, one idea each, with a short explanation after every answer.

Seven question formats: pick the answer, true or myth, fill the blank, put in order, match the pairs, enter a number, type the term.

Topics so far: Go (goroutines, scheduler, errgroup), PostgreSQL (row locks, pagination), Kafka (poison messages, dead letter queue), web (cookies) and architecture (CQRS). New lessons download automatically.

• Random mix: seven questions from all lessons in one tap
• Explanations for every answer, right or wrong
• Streak and XP: finish a lesson a day to keep the streak
• English and Russian, switch inside the app
• Works offline once lessons are downloaded
• No account, no ads, no tracking

## Is DEVijx safe?

Not enough ratings yet to assess DEVijx.

## Is DEVijx legit?

DEVijx appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for DEVijx is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-10-29

No release notes.

## More apps by Maksim Efremov

- [Week Number Calendar](https://appshunter.io/ios/app/week-number-calendar/id6753137789)
- [Increps](https://appshunter.io/ios/app/increps/id6755058197)
- [Running Voice](https://appshunter.io/ios/app/running-voice/id6755080384)
- [CallClip](https://appshunter.io/ios/app/callclip/id6755324329)
- [Young Schemas: Life Traps Test](https://appshunter.io/ios/app/young-schemas-life-traps-test/id6755899152)
- [Kilocalory](https://appshunter.io/ios/app/kilocalory/id6761520020)

All apps by Maksim Efremov: https://appshunter.io/developer/1842666296

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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 2026-10-30.*