iCoder vs IELTS Vocab Builder
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iCoder
This app offers a comprehensive learning resource for algorithms and data structures, featuring a large question bank and interview preparation materials. It provides a powerful search engine and allows users to share progress with friends, making complex topics accessible for IT professionals.
- 1000+ algorithm question bank
- IT company interview preparation
- Powerful search engine
- Shareable learning progress
- Cross-platform support (iOS, iPadOS, macOS)
- Keyboard shortcuts for navigation
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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.
IELTS Vocab Builder
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Master IELTS Vocabulary for Band 6-9 SuccessAchieve your IELTS goals with focused practice on vocabulary and paraphrasing. Perfect for Academic and General Training candidates, our app delivers rapid progress through interactive drills. Why Choose Us? - Build Core Vocabulary: Match definitions, learn collocations, synonyms, antonyms, and word forms with ~3000 words + ~2500 side words (total ~5500). - Paraphrase Mastery: Practice rephrasing for Writing Task 2 excellence. - Flashcards & Glossary: Quick reviews with examples for on-the-go study. - Track Your Progress: Levels, quizzes, and stats to measure improvement. Join thousands mastering IELTS skills daily. Privacy-focused. Download now and level up your English! Legal and Privacy: By using our app, you agree to our Privacy Policy and Apple’s standard Terms of Use. Privacy Policy: https://cleevao.github.io/ielts_vocabulary_support/privacy-policy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: IELTS Vocab Builder at Free against iCoder's $1.29. IELTS Vocab Builder also leads on iOS requirement (13.0 vs 16.0). iCoder's advantage is ads (none vs shown) and update cadence (every 6 days vs every 3 weeks). On in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
IELTS Vocab Builder is free to download; iCoder costs $1.29 up front. iCoder sells 1 one-off in-app purchase and IELTS Vocab Builder sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
iCoder ships an update every 6 days, IELTS Vocab Builder every 3 weeks. The most recent releases landed on October 25, 2026 and October 26, 2026 respectively.
| Parameter | iCoder | IELTS Vocab Builder |
|---|---|---|
| Price | $1.29 | Free — better |
| Rating | 3.7 (6 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Every 6 days — better | Every 3 weeks |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 16.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 62 MB |
| Age rating | 4+ | 4+ |
| Developer | 天从 何 | SAMI SANDAL |
In-app purchases
iCoder
- Tip the developer$0.99
IELTS Vocab Builder
- Monthly Premium$2.991 Month
- Premium for 6 Months$12.996 Months
- Yearly Premium$24.991 Year
Questions
Is iCoder free?
Is IELTS Vocab Builder free?
Do iCoder or IELTS Vocab Builder have ads?
Which is updated more often, iCoder or IELTS Vocab Builder?
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