---
title: "iCoder - Advanced Algorithms - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "Eight years. One mission: help you master algorithms without distractions.  iCoder is a LeetCode practice app trusted since day one by learners preparing for technical interviews. Version 8.0 marks ou"
---

# iCoder - Advanced Algorithms — United States
> Your Best Algorithm Teacher

![ICoder App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/6d/a7/5a/6da75afe-1ce2-70fe-89da-908e642ea477/AppIcon-0-0-1x_U007emarketing-0-8-0-85-220.jpeg/400x400bb.jpg)

**Developer:** [天从 何](https://apptail.io/developer/developer-wBT)
**Category:** Education
**Rating:** 3.7/5 (6 ratings)
**Price:** $1.29
**Bundle ID:** com.iHTCboy.iLeetCoder
**Store:** Apple App Store
**Country:** United States
**Version:** 8.1.0 (released 2026-06-06)
**Original Release:** 2019-04-05

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id1458259471)
**AppTail Page:** [https://apptail.io/app/icoder-advanced-algorithms-IOwb/united-states](https://apptail.io/app/icoder-advanced-algorithms-IOwb/united-states)

## ICoder Description
Eight years. One mission: help you master algorithms without distractions.

iCoder is a LeetCode practice app trusted since day one by learners preparing for technical interviews. Version 8.0 marks our 8th anniversary with a complete SwiftUI rebuild: faster, cleaner, and ready for iOS 16 and later. Still 1000+ classic problems, still offline, still no ad popups.

WHY iCODER

- Born for interview prep: company-tagged problems mirror what top firms often ask
- Organized by difficulty, tags, and companies so you can drill weak spots
- Offline-first: the library lives on your device; browse, quiz, and widgets work without Wi-Fi
- Eight years of polish: now with a modern SwiftUI interface and rich widgets

BROWSE AND SEARCH

- Numbered list or compact grid with adjustable columns on iPhone and iPad
- Filter by Easy, Medium, Hard, VIP, favorites, and learning status
- Optional Favorites and Recently Viewed at the top of the Problems tab
- Search by problem ID, title, content, tag, or company
- Swipe and context menus for favorites and status

CATEGORIES

- Algorithm tags from arrays to dynamic programming
- Company collections for targeted interview practice
- Smooth flow from filters to detail

PROBLEM DETAIL

- Bilingual Chinese and English descriptions
- Adjustable font size
- Unlearned, Learned, and Mastered tracking
- Toolbar favorites and solution links when online
- Share a long image for notes or study groups
- Previous and next problem navigation

DAILY QUIZ AND REVIEW

- Ten questions per day by difficulty, tag, or company
- Today score, best score, and streak
- Wrong Book with one-tap return to full problem detail
- Reshuffle for extra practice the same day

LEARNING TRACKING

- Favorites and Recently Viewed lists in Settings
- One-tap clear all recents
- Stats for favorites, learned rate, and mastered rate

WIDGETS (iOS 16 AND LATER)

- Daily Problem, Difficulty Glance, Daily Quiz, Favorites, Wrong Book, Learning Progress, Company Spotlight
- Lock Screen and StandBy compact layouts; deep-link into the app
- On iOS 17 and later: shuffle from Daily Problem and Company Spotlight Home Screen widgets without opening the app
- In-app Widget Guide with FAQ

PERSONALIZATION

- Sixteen accent colors; Light, Dark, or System
- Widget backgrounds can match your theme
- English, Simplified Chinese, Traditional Chinese, or Follow System
- List or grid layout with custom column count

SHORTCUTS

- Up to four Home Screen quick actions on long-press
- Deep links from widgets and shortcuts
- iPad and Mac keyboard shortcuts

SUPPORT

- Rate, email feedback, share the app, tip the developer
- More apps from the developer
- Optional App Store update reminder

OUR PROMISE SINCE YEAR ONE

- No ad popups inside the app
- Offline problem library
- Your time is precious; we respect it

Requires iOS 16.0 or later. Download iCoder 8.0 and celebrate eight years of practice with us.

## ICoder Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/67/0e/38/670e38e7-83d0-4c72-dab2-7e5b1acab5a8/Simulator_Screenshot_-_iPhone_17_Pro_Max_-_2026-05-31_at_16.09.19.png/1320x2868.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/a0/11/4c/a0114c0e-a62b-4009-9d5d-7f9f5d2be77f/Simulator_Screenshot_-_iPhone_17_Pro_Max_-_2026-05-31_at_16.03.00.png/1320x2868.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/b8/2f/e2/b82fe260-b906-6088-025f-7dfc189fb8f0/Simulator_Screenshot_-_iPhone_17_Pro_Max_-_2026-05-31_at_16.04.27.png/1320x2868.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/1e/25/ca/1e25ca39-3fa0-6654-db61-703ad2a4203e/Simulator_Screenshot_-_iPhone_17_Pro_Max_-_2026-05-31_at_16.03.13.png/1320x2868.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/20/0c/dc/200cdc89-ee8a-1f65-1aec-067a31bc9a74/Simulator_Screenshot_-_iPhone_17_Pro_Max_-_2026-05-31_at_16.03.36.png/1320x2868.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/e5/51/c6/e551c6a9-d2c9-a669-4665-e3d3cd9255e8/Simulator_Screenshot_-_iPhone_17_Pro_Max_-_2026-05-31_at_16.02.50.png/1320x2868.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/0e/4c/be/0e4cbe55-287c-91f7-ba02-0cd7ab458249/Simulator_Screenshot_-_iPhone_17_Pro_Max_-_2026-05-31_at_16.03.45.png/1320x2868.png)
- [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/ee/a2/84/eea28457-74d2-ea13-ac13-81c5e7554551/Simulator_Screenshot_-_iPhone_17_Pro_Max_-_2026-05-31_at_16.03.50.png/1320x2868.png)
- [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/40/73/fc/4073fce0-900b-0eae-9744-24817f30245e/Simulator_Screenshot_-_iPhone_17_Pro_Max_-_2026-05-31_at_16.03.57.png/1320x2868.png)
- [Screenshot 10](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/8e/1b/19/8e1b19b6-4f7d-8a21-6466-0b638326ff13/Simulator_Screenshot_-_iPhone_17_Pro_Max_-_2026-05-31_at_16.05.06.png/1320x2868.png)

## ICoder Rating Breakdown in United States
- 5 stars: 4 (67%)
- 4 stars: 0 (0%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 2 (33%)

## ICoder Reviews in United States

### ***** "suggest adding a "discussion" section to allow users to view comments and feedback"
There's a minor UI bug where the header overlaps part of the text. I suggest adding a "discussion" section to allow users to view comments and feedback on articles without a solution.
-- MinhToan9, 2024-11-19

[View all ICoder reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)



## ICoder Discovered Keywords
- icoder
- advanced algorithms

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## ICoder Available In
- [United States](https://apptail.io/app/icoder-advanced-algorithms-IOwb/united-states)
- [Thailand](https://apptail.io/app/icoder-advanced-algorithms-IOwb/thailand)
- [Angola](https://apptail.io/app/icoder-advanced-algorithms-IOwb/angola)
- [Argentina](https://apptail.io/app/icoder-advanced-algorithms-IOwb/argentina)
- [Austria](https://apptail.io/app/icoder-advanced-algorithms-IOwb/austria)
- [Australia](https://apptail.io/app/icoder-advanced-algorithms-IOwb/australia)
- [Azerbaijan](https://apptail.io/app/icoder-advanced-algorithms-IOwb/azerbaijan)
- [Belgium](https://apptail.io/app/icoder-advanced-algorithms-IOwb/belgium)
- [Bulgaria](https://apptail.io/app/icoder-advanced-algorithms-IOwb/bulgaria)
- [Bahrain](https://apptail.io/app/icoder-advanced-algorithms-IOwb/bahrain)
- [Brunei](https://apptail.io/app/icoder-advanced-algorithms-IOwb/brunei)
- [Brazil](https://apptail.io/app/icoder-advanced-algorithms-IOwb/brazil)
- [Belarus](https://apptail.io/app/icoder-advanced-algorithms-IOwb/belarus)
- [Belize](https://apptail.io/app/icoder-advanced-algorithms-IOwb/belize)
- [Canada](https://apptail.io/app/icoder-advanced-algorithms-IOwb/canada)
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- [Sweden](https://apptail.io/app/icoder-advanced-algorithms-IOwb/sweden)
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- [Armenia](https://apptail.io/app/icoder-advanced-algorithms-IOwb/armenia)

---

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