# iTer vs CodeViewer

The clearest difference is in-app purchases: CodeViewer at none against iTer's 1. CodeViewer also leads on chart position (#35 vs unranked). iTer's advantage is update cadence (every 4 days vs every 8 months). On price, ads, device support and iOS requirement there is nothing between them.

iTer costs $0.99 and CodeViewer $0.29 up front. iTer sells 1 one-off in-app purchase. CodeViewer asks for nothing beyond the download.

iTer ships an update every 4 days, CodeViewer every 8 months. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | iTer | CodeViewer |
| --- | --- | --- |
| Price | $0.99 | **$0.29** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/iter-it-learning/id1224934068/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 8 months |
| Monetization | Paid | — |
| Best chart rank | — | **#35** |
| Size | 19 MB | 1 MB |
| Requires iOS | **16.0** | 17.2 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [天从 何](https://appshunter.io/developer/914453386) | [健 王](https://appshunter.io/developer/1558318494) |

## What reviewers say

### iTer

[App page](https://appshunter.io/ios/app/iter-it-learning/id1224934068)

This app provides an extensive offline library of over 10,000 interview questions for developers across various programming languages and career paths. It includes company-specific exams, smart learning tools, daily quizzes, and powerful search functionality to aid in interview preparation.

**Highlights:** 10,000+ offline interview questions, 16 language tracks and 12 career paths, Company exam collections, Smart learning management (starring, mastery labels), Daily quiz habit builder, Powerful global search, Home screen widgets and quick actions

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip the developer | $0.99 | one-time |


### CodeViewer

[App page](https://appshunter.io/ios/app/codeviewer/id6443973448)

**Currently charting:** #35 Top Paid · Developer Tools (US App Store)

**In-app purchases:** none


## Frequently asked questions

### Is iTer free?

iTer costs $0.99, and also offers in-app purchases.

### Is CodeViewer free?

CodeViewer costs $0.29, with no in-app purchases.

### Do iTer or CodeViewer have ads?

Neither iTer nor CodeViewer shows ads.

### Which is updated more often, iTer or CodeViewer?

iTer ships an update every 4 days, and CodeViewer every 8 months. Most recently, iTer was updated on October 7, 2026 and CodeViewer on October 8, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*