iTer Downloads & RevenueiTer - IT learning · App Store
iTer - IT学习、求职面试必备
iTer - IT learning is #26 in Developer Tools Paid in China and charting in 2 of 30 countries we track.
Updated 11 Nov 2026 · rankings refresh through the day
Developer天从 何
CategoryDeveloper Tools
Price2.80 CNY
Released
Rating★ 5.0 (4)
Version10.1.0
Age rating4+
First seen by us
25 Sep 2026
25 Sep 2026Installs (est.)100+ worldwide
📈Charting in a new country in 2 charts📈Charting in a new country🆕First spotted by AppInsider📦Version 10.1.0🆕Released on the App Store
Full timeline · 5 events
- 📈iTer - IT learning charting in a new country in 2 chartsJapan · Russia
- 📈iTer - IT learning charting in a new countryUnited Kingdom
- 🆕iTer - IT learning first spotted by AppInsider#4 in Top Paid · Developer Tools · China
- 📦iTer - IT learning version 10.1.0iTer v10 Tenth Anniversary Edition
Since 2016, iTer has helped developers prepare for technical interviews. For our tenth anniversary, we rebuilt the entire app with SwiftUI for a faster, cleaner, and more modern experience.
Brand-new SwiftUI experience
- Complete rewrite from UIKit to native SwiftUI
- Refreshed gradients, cards, and navigation
- Universal app for iPhone, iPad, and native Mac
- Mac keyboard shortcuts: Command 1-4 for tabs, Command F for search
Smarter learning workflow
- Favorites, recent history, wrong-answer notebook, and mastery labels
- Daily 5-question quiz with date-based questions and streak tracking
- Wrong-answer review after each quiz, with retry and reshuffle options
- Learning stats dashboard for favorites, mistakes, and mastery rate
Browse and search
- 10,000+ offline interview questions, no network required
- 16 language categories, 12 career paths, 12 company exam sets
- Global search with language or company filters
- List and grid views with adjustable grid columns
Widgets and shortcuts
- Four home screen widgets: daily question, quiz glance, favorites glance, wrong-book glance
- Widget background follows your theme color
- Customizable home screen quick actions, up to 4 items
Share and grow
- Beautiful share cards with long image and App Store QR code
- Advanced learning hub with Awesome lists, Gitbook, Objc.io, NSHipster, and more
- External links open in in-app Safari
Personalization
- 15 theme presets plus custom accent color
- Light, dark, and system appearance
- Toggle favorites and recent sections on the Languages tab
Thank you for ten years with iTer. Here is to your next offer.… more - 🆕iTer - IT learning released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
5.0 ★
4 ratings
Measured
Best rank now
#26
Developer Tools PaidMeasured
iTer - IT learning at a glance
AI summary written from our chart and store data, 2026-09-28. It can be wrong: check the numbers above.
iTer is an offline interview preparation tool for developers, offering a curated bank of over 10,000 questions across 16 languages and 12 career paths to help programmers study for job interviews. The app currently ranks #4 in Paid Developer Tools in China and #117 in Russia, indicating strong niche appeal in key markets despite a low total rating count of four reviews.
Similar apps: LeetCode, Interviewing.io, Pramp
iTer - IT learning on the App Store
App details
App ID
1224934068
Publisher
天从 何
On the store since
Apr 2017
9 years on the store
Minimum OS
iOS 16.0+
iPhone 8 and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
3
EN ZH ZH
Size
19 MB
Also listed in
Reference
iTer - IT learning downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| China | Developer ToolsPaid | #26 |
 Russia | Developer ToolsPaid | #115 |
Apps near iTer - IT learning on the chart
Developer Tools Paid, around #26.
Ratings
App Store, worldwide.
Rating
5.0 ★
4 ratings
Measured
Ratings
4
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
5.0★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
20/100
faster than 0% of Developer Tools apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
What users say about iTer - IT learning
From recent reviews.
About iTer - IT learning
iTer is your offline interview question library for developers.
For ten years, iTer has helped programmers study smarter for job interviews. Version 10 is a full SwiftUI rebuild that brings 10,000+ curated questions, company exams, and practical study tools into one clean, fast, always-ready app. Whether you are preparing for campus recruiting, switching jobs, or refreshing fundamentals, iTer turns spare minutes into real progress.
1. Massive offline question bank
- 10,000+ interview questions, fully offline
- 16 language tracks: Objective-C, Swift, Java, C/C++, PHP, JavaScript, Python, SQL, C#, HTML5, Ruby, R, Linux, Big Data, Algorithms, Network Security
- 12 career paths: iOS, Java, Web, PHP, Python, Game, Database, Big Data, Linux, Algorithm, and Network Engineering
- 12 company exam collections from Google, Microsoft, Baidu, Tencent, Alibaba, JD, 360, NetEase, and more
- Multiple-choice and Q&A formats covering language basics, frameworks, algorithms, and common interview topics
2. Smart learning management
- Star important questions for quick review before interviews
- Recent history picks up where you left off
- Mastery labels: unlearned, learned, mastered
- Wrong-answer notebook collects mistakes from daily quizzes
- Learning stats summarize favorites, wrong answers, and mastery rate
3. Daily quiz habit builder
- Five multiple-choice questions every day, seeded by date
- Streak counter keeps you motivated
- Instant scoring with encouraging feedback
- Wrong-answer review shows your answer vs the correct one
- Retry today or reshuffle for extra practice
4. Powerful global search
- Search questions, answers, and knowledge keywords
- Filter by language or company exams
- Jump straight to question details from results
-【iPad + keyboard】⌘F to search, ⌘1–⌘4 for tabs. In question detail (from a multi-question list): ← Previous, R Random, Space Show answer, → Next — faster review on iPad.
5. Categories and advanced learning
- Browse by career path or company exam papers
- Advanced learning links to LeetCode, Objc.io, NSHipster, Awesome lists, Gitbook tutorials, and practice projects
- External links open inside the app with in-app Safari
6. Home screen widgets
- Daily Question: one interview question on your home screen
- Quiz Glance: today score and streak
- Favorites Glance: track saved questions
- Wrong Book Glance: reminders for mistakes to review
- Widget background can follow your app theme
7. Home screen quick actions
- Long-press the app icon to pin up to 4 shortcuts
- Jump to search, daily quiz, favorites, wrong book, categories, feedback, or App Store review
- Deep links open the right screen instantly
8. Rich question detail experience
- Tap to reveal or hide answers for Q&A items
- Interactive multiple-choice practice before seeing explanations
- Toolbar actions for favorite, mastery, and share
- Copy question and answer text for notes
- Shuffle question order in lists
- Share cards render a long image with QR code for friends
For ten years, iTer has helped programmers study smarter for job interviews. Version 10 is a full SwiftUI rebuild that brings 10,000+ curated questions, company exams, and practical study tools into one clean, fast, always-ready app. Whether you are preparing for campus recruiting, switching jobs, or refreshing fundamentals, iTer turns spare minutes into real progress.
1. Massive offline question bank
- 10,000+ interview questions, fully offline
- 16 language tracks: Objective-C, Swift, Java, C/C++, PHP, JavaScript, Python, SQL, C#, HTML5, Ruby, R, Linux, Big Data, Algorithms, Network Security
- 12 career paths: iOS, Java, Web, PHP, Python, Game, Database, Big Data, Linux, Algorithm, and Network Engineering
- 12 company exam collections from Google, Microsoft, Baidu, Tencent, Alibaba, JD, 360, NetEase, and more
- Multiple-choice and Q&A formats covering language basics, frameworks, algorithms, and common interview topics
2. Smart learning management
- Star important questions for quick review before interviews
- Recent history picks up where you left off
- Mastery labels: unlearned, learned, mastered
- Wrong-answer notebook collects mistakes from daily quizzes
- Learning stats summarize favorites, wrong answers, and mastery rate
3. Daily quiz habit builder
- Five multiple-choice questions every day, seeded by date
- Streak counter keeps you motivated
- Instant scoring with encouraging feedback
- Wrong-answer review shows your answer vs the correct one
- Retry today or reshuffle for extra practice
4. Powerful global search
- Search questions, answers, and knowledge keywords
- Filter by language or company exams
- Jump straight to question details from results
-【iPad + keyboard】⌘F to search, ⌘1–⌘4 for tabs. In question detail (from a multi-question list): ← Previous, R Random, Space Show answer, → Next — faster review on iPad.
5. Categories and advanced learning
- Browse by career path or company exam papers
- Advanced learning links to LeetCode, Objc.io, NSHipster, Awesome lists, Gitbook tutorials, and practice projects
- External links open inside the app with in-app Safari
6. Home screen widgets
- Daily Question: one interview question on your home screen
- Quiz Glance: today score and streak
- Favorites Glance: track saved questions
- Wrong Book Glance: reminders for mistakes to review
- Widget background can follow your app theme
7. Home screen quick actions
- Long-press the app icon to pin up to 4 shortcuts
- Jump to search, daily quiz, favorites, wrong book, categories, feedback, or App Store review
- Deep links open the right screen instantly
8. Rich question detail experience
- Tap to reveal or hide answers for Q&A items
- Interactive multiple-choice practice before seeing explanations
- Toolbar actions for favorite, mastery, and share
- Copy question and answer text for notes
- Shuffle question order in lists
- Share cards render a long image with QR code for friends
Latest updates
10.1.0
iTer v10 Tenth Anniversary Edition
Since 2016, iTer has helped developers prepare for technical interviews. For our tenth anniversary, we rebuilt the entire app with SwiftUI for a faster, cleaner, and more modern experience.
Brand-new SwiftUI experience
- Complete rewrite from UIKit to native SwiftUI
- Refreshed gradients, cards, and navigation
- Universal app for iPhone, iPad, and native Mac
- Mac keyboard shortcuts: Command 1-4 for tabs, Command F for search
Smarter learning workflow
- Favorites, recent history, wrong-answer notebook, and mastery labels
- Daily 5-question quiz with date-based questions and streak tracking
- Wrong-answer review after each quiz, with retry and reshuffle options
- Learning stats dashboard for favorites, mistakes, and mastery rate
Browse and search
- 10,000+ offline interview questions, no network required
- 16 language categories, 12 career paths, 12 company exam sets
- Global search with language or company filters
- List and grid views with adjustable grid columns
Widgets and shortcuts
- Four home screen widgets: daily question, quiz glance, favorites glance, wrong-book glance
- Widget background follows your theme color
- Customizable home screen quick actions, up to 4 items
Share and grow
- Beautiful share cards with long image and App Store QR code
- Advanced learning hub with Awesome lists, Gitbook, Objc.io, NSHipster, and more
- External links open in in-app Safari
Personalization
- 15 theme presets plus custom accent color
- Light, dark, and system appearance
- Toggle favorites and recent sections on the Languages tab
Thank you for ten years with iTer. Here is to your next offer.
