Source: https://seerepo.com/compare/Aider-AI/aider/vs/mozilla-mobile/firefox-ios
Markdown source: https://seerepo.com/compare/Aider-AI/aider/vs/mozilla-mobile/firefox-ios.md
Description: aider and firefox-ios share 5 technologies: Rich, jinja2, markdown-it-py, markupsafe, and mdurl. aider is written in Python and firefox-ios in Swift.

# aider vs firefox-ios

aider and firefox-ios share 5 technologies: Rich, jinja2, markdown-it-py, markupsafe, and mdurl. aider is written in Python and firefox-ios in Swift.

- [Aider-AI/aider](https://seerepo.com/r/Aider-AI/aider): aider is AI pair programming in your terminal
- [mozilla-mobile/firefox-ios](https://seerepo.com/r/mozilla-mobile/firefox-ios): Firefox for iOS

## What they share and what sets them apart

- In common: Rich, jinja2, markdown-it-py, markupsafe, mdurl
- Only in aider: aiosqlite, gitdb, google-cloud-core, pyarrow, SQLite, diskcache, Mixpanel, PostHog, AIOHTTP, anyio, asgiref, FastAPI, starlette, tornado, Streamlit, cycler, fonttools, just-the-docs, soupsieve, altair, contourpy, matplotlib, pydeck, prompt-toolkit, SQLAlchemy, cryptography, Google, llama-index-instrumentation, llama-index-workflows, nltk, OpenAI, safetensors, scikit-learn, sentence-transformers, tiktoken, tokenizers, torch, transformers, litellm, llama-index-core, llama-index-embeddings-huggingface, filetype, imgcat, tinytag, pillow, beautifulsoup4, pypandoc, annotated-types, jsonschema-specifications, marshmallow, Pydantic, referencing, jsonschema, psutil
- Only in firefox-ios: Sentry, SnapKit, @mozilla/readability, dompurify, SwiftDraw, voluptuous, SwiftyBeaver

## Side by side

| | aider | firefox-ios |
|---|---|---|
| Size | 41,407 lines written, 93 code files | 592,956 lines written, 2,242 code files |
| Who writes it | 89.5% of its commits signed by AI. With Aider, Gemini CLI, Codex, and Claude Code | 0.2% of its commits signed by AI. With Claude Code, GitHub Copilot, and Cursor |
| Activity | Last push May 22, 2026, 12,461 commits, 50,047 stars | Last push November 10, 2026, 20,850 commits, 13,068 stars |
| Tests | 57 test files. 36.6% of its code files have a test that imports them | 1,280 test files. 54.3% of its code files have a test that imports them |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, aider or firefox-ios?

firefox-ios, with 592,956 lines written; aider has 41,407.

The proof: [mozilla-mobile/firefox-ios's code at commit 81b5f3a](https://github.com/mozilla-mobile/firefox-ios/tree/81b5f3ab6442df317734d1d363532d262d4f78cf)

### Which has more GitHub stars, aider or firefox-ios?

aider, with 50,047 stars; firefox-ios has 13,068.

The proof: [Aider-AI/aider on GitHub](https://github.com/Aider-AI/aider)

### Which has more tests, aider or firefox-ios?

firefox-ios, with 1,280 test files; aider has 57.

The proof: [mozilla-mobile/firefox-ios's code at commit 81b5f3a](https://github.com/mozilla-mobile/firefox-ios/tree/81b5f3ab6442df317734d1d363532d262d4f78cf)

### Which was updated more recently, aider or firefox-ios?

firefox-ios: its last push was on November 10, 2026, and aider's on May 22, 2026.

The proof: [mozilla-mobile/firefox-ios's commits on GitHub](https://github.com/mozilla-mobile/firefox-ios/commits)

### Which has more commits signed by AI, aider or firefox-ios?

aider: an AI signed 89.5% of its commits, with Aider, Gemini CLI, Codex, and Claude Code; in firefox-ios, 0.2%.

The proof: [the commits each tool signed in Aider-AI/aider](https://seerepo.com/r/Aider-AI/aider/ai)

## Sources

- Aider-AI/aider: Read on November 10, 2026, at commit 5dc9490 (https://github.com/Aider-AI/aider/tree/5dc9490bb35f9729ef2c95d00a19ccd30c26339c)
- mozilla-mobile/firefox-ios: Read on November 10, 2026, at commit 81b5f3a (https://github.com/mozilla-mobile/firefox-ios/tree/81b5f3ab6442df317734d1d363532d262d4f78cf)

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.