# Devterms.AI vs Happy

The clearest difference is in-app purchases: Devterms.AI at none against Happy's 1. Devterms.AI also leads on review sentiment (100% vs 71%). Happy's advantage is chart position (#33 vs unranked). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Happy sells 1 in-app purchase, starting at $19.99 per month. Devterms.AI asks for nothing beyond the download.

Devterms.AI ships an update every 9 days, Happy weekly. The most recent releases landed on September 11, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Devterms.AI | Happy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (991 ratings)](https://appshunter.io/ios/app/happy-codex-and-claude-code-app/id6748571505/reviews)** |
| Number of ratings | — | **991** |
| Positive reviews | **100.0% of reviews** | 71.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | — | **#33** |
| Size | 23 MB | 92 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Praveen Kumar](https://appshunter.io/developer/1787580178) | [Bulka, LLC](https://appshunter.io/developer/1677403762) |

## What reviewers say

### Devterms.AI

[App page](https://appshunter.io/ios/app/devtermsai/id6739945754)

This app simplifies complex tech terms with clear definitions, relatable analogies, and examples. It's designed to make technical jargon understandable for anyone, regardless of their background in the industry.

**Highlights:** Easy-to-understand definitions, Real-life analogies, Practical examples, Searchable tech terms, Clear explanations for beginners

**Features:** macOS Compatibility

**In-app purchases:** none


### Happy

[App page](https://appshunter.io/ios/app/happy-codex-and-claude-code-app/id6748571505)

**Currently charting:** #33 Top Grossing · Developer Tools, #79 Top Free · Developer Tools (US App Store)

This app provides a secure mobile interface for AI coding assistants, allowing you to continue sessions and monitor progress from anywhere. It features end-to-end encryption and a zero-knowledge architecture for ultimate privacy. Seamlessly switch between desktop and mobile for uninterrupted AI coding.

**Highlights:** Seamless desktop and mobile session continuation, Push notifications for AI tasks, Offline access to conversation history, End-to-end encryption for code privacy, Real-time streaming of AI responses, Zero-knowledge architecture

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus Plus Monthly | $19.99 | per month |


## Frequently asked questions

### Is Devterms.AI free?

Devterms.AI is free to download, with no in-app purchases.

### Is Happy free?

Happy is free to download, with in-app purchases available.

### Do Devterms.AI or Happy have ads?

Neither Devterms.AI nor Happy shows ads.

### Which is updated more often, Devterms.AI or Happy?

Devterms.AI ships an update every 9 days, and Happy weekly. Most recently, Devterms.AI was updated on September 11, 2026 and Happy on September 28, 2026.

---

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