# Byter: Swipe & Code — Learn by challenging yourself

> Interactive coding challenges to build real engineering judgment and skills. (iPhone/iPad app by Nutrimatics Inc..)

- Source: https://appshunter.io/ios/app/byter-swipe-and-code/id6758867559 (this page in markdown: same URL + `.md`)
- Developer: [Nutrimatics Inc.](https://appshunter.io/developer/1875403982)
- Category: Education, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.1 · 315 MB
- Languages: English
- Released: 2026-05-03
- Data updated: 2026-07-09
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/byter-swipe-and-code/id6758867559/reviews.md

## What is Byter?

Byter helps you build real engineering skill in the AI era.

AI can write code. Strong engineers still need judgment: debugging, architecture, tradeoffs, performance, systems thinking, and clear reasoning. Byter turns idle moments into focused practice with swipeable, bite-sized challenges designed to sharpen the skills that matter on real teams.

Choose a specialty and start solving across high-impact fields like algorithms, backend systems, frontend engineering, mobile, cloud, data platforms, AI/ML, cybersecurity, robotics, game development, fintech, and more.

Practice Beyond LeetCode

Byter is not just another coding question bank. You’ll face multiple challenge formats that mirror real engineering work:

• Implementation: write clean, working solutions
• Code Review: find bugs, security issues, and performance problems
• System Design: build scalable architectures with graph-based answers
• System Improvement: fix broken architectures and improve data flow
• Multiple Choice: test concepts, tradeoffs, and engineering judgment

Built for Fast, Focused Practice

• Swipeable problem feed for quick daily reps
• In-app code editor with language-aware solving
• Graph builder for system design challenges
• Instant AI grading and feedback
• Multiple attempts to improve your score
• Daily Challenges, streaks, and leaderboards
• Cody, your AI mentor, for guided help when you’re stuck
• Skill insights across your specialties and progress over time

Practice in the languages and domains you care about. Build stronger instincts one problem at a time.

Stop scrolling. Start building.

Download Byter and master the engineering skills AI can’t replace.

Legal:
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Terms of Service: https://www.byter.app/terms
Privacy Policy: https://www.byter.app/privacy

## Key features

- Swipeable problem feed
- In-app code editor
- System design graph builder
- Instant AI grading
- Daily challenges and streaks
- AI mentor for guidance
- Skill insights and progress tracking

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Byter Pro Monthly | $14.99 | per month |
| Byter Pro Annual | $129.99 | per year |
| Byter Max Monthly | $39.99 | per month |
| Byter Max Annual | $334.99 | per year |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/byter-swipe-and-code/id6758867559/reviews.md

### 5/5 — HIGHLY RECOMMEND!!!!!!!

*2026-05-06, version 1.0.1*

No amount of leet code grinding helped me as much as this app did for my job interviews!!!! This app is genuinely a GAME CHANGER!!!!!!!

### 5/5 — Wow

*2026-05-04, version 1.0*

Really good replacement for tik tok. I already feel like I can build the next facebook haha

## Frequently asked questions about Byter

### What is Byter?

Byter is an educational app designed to help users build real engineering skills. It offers bite-sized, swipeable challenges that focus on debugging, architecture, performance, and systems thinking.

### What kind of challenges does Byter offer?

Byter provides various challenge formats including implementation, code review, system design, system improvement, and multiple-choice questions to test concepts and judgment.

### What programming languages can I practice with Byter?

The app allows practice in languages and domains you care about, with an in-app code editor that supports language-aware solving.

### Does Byter offer any guidance when I get stuck?

Yes, Byter includes Cody, an AI mentor, to provide guided help when you are stuck on a challenge.

### How does Byter track my progress?

Byter offers skill insights across your chosen specialties and tracks your progress over time, including daily challenges, streaks, and leaderboards.

### What are the subscription options for Byter?

Byter offers monthly and annual subscription plans: Byter Pro and Byter Max. Pro plans start at $14.99/month with a 3-day free trial, and Max plans are also available.

### Is Byter available on multiple devices?

Yes, Byter is supported on iPhone, iPad, and iPod, making it accessible for practice on various Apple devices.

### How often is Byter updated?

The app was last updated on June 5, 2026, with version 1.0.5, indicating regular updates to improve features and content.

## Version history (last 5 releases)

### 1.0.5 — 2026-06-05

major bug fixes

### 1.03 — 2026-05-11

Bug fixes & improvements:

• Fixed an issue where signing in could create a duplicate account
• Fixed onboarding survey answers not saving on first signup
• Fixed setup not resuming if the app was closed mid-onboarding

### 1.0.2 — 2026-05-08

Stability fixes. addressed several edge-case crashes during onboarding and problem solving

### 1.0.1 — 2026-05-05

• Share problems with friends
• Better keyboard handling while coding
• Small fixes and improvements

### 1.0 — 2026-05-04

No release notes.

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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 2026-07-09.*