# slopus/happy vs Twinny — Fit & Features

Canonical: https://trutool.co/compare/slopus-happy-vs-twinny
Author: Snehil (https://trutool.co/authors/snehil)

Compare slopus/happy and Twinny by use case, features, limitations, and evaluation questions.

## Compare fit, features, and limitations

### slopus/happy
Happy is the open-source desktop app for Claude Code, Codex, and Grok, with an iOS and Android app to control your coding agents from anywhere.
Best fit: People and teams evaluating ai coding assistants for a specific workflow.
- Core product workflow
Before you choose: Test a representative task, inspect outputs, and confirm integrations, permissions, data handling, licensing, and current costs.
Pricing: https://github.com/pricing
- [Read slopus/happy profile](https://trutool.co/tools/slopus-happy): Read slopus/happy profile

### Twinny
Open-source AI coding assistant for VS Code. Code completion, chat, edits and reviews with local or hosted models. Your models, your infrastructure.
Best fit: People and teams evaluating ai coding assistants for a specific workflow.
- Coding assistance
- Editing
Before you choose: Test a representative task, inspect outputs, and confirm integrations, permissions, data handling, licensing, and current costs.
Pricing: https://github.com/pricing
- [Read Twinny profile](https://trutool.co/tools/twinny): Read Twinny profile