# Happy Chandara App vs Computer Science Dictionary

The clearest difference is in-app purchases: Happy Chandara App at none against Computer Science Dictionary's 1. Happy Chandara App also leads on update cadence (monthly vs every 16 months). Computer Science Dictionary's advantage is iOS requirement (13.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Computer Science Dictionary sells 1 one-off in-app purchase. Happy Chandara App asks for nothing beyond the download.

Happy Chandara App ships an update monthly, Computer Science Dictionary every 16 months. The most recent releases landed on October 9, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Happy Chandara App | Computer Science Dictionary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (9 ratings)](https://appshunter.io/ios/app/computer-science-dictionary/id6714465469/reviews)** |
| Number of ratings | — | **9** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 16 months |
| Monetization | — | Free |
| Size | 89 MB | 68 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Panha Sa](https://appshunter.io/developer/1534830463) | [Shital Gorasiya](https://appshunter.io/developer/1737199158) |

## What reviewers say

### Happy Chandara App

[App page](https://appshunter.io/ios/app/happy-chandara-app/id1664306576)

**Features:** macOS Compatibility

**In-app purchases:** none


### Computer Science Dictionary

[App page](https://appshunter.io/ios/app/computer-science-dictionary/id6714465469)

This app offers a comprehensive offline dictionary for computer science and engineering students, featuring over 4,200 terms, formulas, historical insights, and quizzes. Explore computer history, save favorite terms, and test your knowledge with interactive challenges.

**Highlights:** 4,200+ Computer Engineering terms, Visual representations of formulas, Comprehensive computer history timeline, Challenging quizzes, Autoplay audio definitions, Community word contributions, Save favorite terms

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Purchase | $6.99 | one-time |


## Frequently asked questions

### Is Happy Chandara App free?

Happy Chandara App is free to download, with no in-app purchases.

### Is Computer Science Dictionary free?

Computer Science Dictionary is free to download, with in-app purchases available.

### Do Happy Chandara App or Computer Science Dictionary have ads?

Neither Happy Chandara App nor Computer Science Dictionary shows ads.

### Which is updated more often, Happy Chandara App or Computer Science Dictionary?

Happy Chandara App ships an update monthly, and Computer Science Dictionary every 16 months. Most recently, Happy Chandara App was updated on October 9, 2026 and Computer Science Dictionary on October 24, 2026.

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