Source: https://seerepo.com/compare/AppFlowy-IO/AppFlowy/vs/unionlabs/union
Markdown source: https://seerepo.com/compare/AppFlowy-IO/AppFlowy/vs/unionlabs/union.md
Description: AppFlowy and union share 7 technologies: SQLite, moka, Tokio, console, schemars, tracing, and tracing-subscriber. AppFlowy is written in Dart and union in Rust.

# AppFlowy vs union

AppFlowy and union share 7 technologies: SQLite, moka, Tokio, console, schemars, tracing, and tracing-subscriber. AppFlowy is written in Dart and union in Rust.

- [AppFlowy-IO/AppFlowy](https://seerepo.com/r/AppFlowy-IO/AppFlowy): Bring projects, wikis, and teams together with AI. AppFlowy is the AI collaborative workspace where you achieve more without losing control of your data. The leading open source Notion alternative.
- [unionlabs/union](https://seerepo.com/r/unionlabs/union): The trust-minimized, zero-knowledge bridging protocol, designed for censorship resistance, extremely high security, and usage in decentralized finance.

## What they share and what sets them apart

- In common: SQLite, moka, Tokio, console, schemars, tracing, tracing-subscriber
- Only in AppFlowy: Flutter, rusqlite, shared_preferences, plugin_platform_interface, google_fonts, desktop_drop, window_manager, animations, auto_size_text_field, flex_color_picker, flutter_staggered_grid_view, percent_indicator, diesel, diesel_migrations, hmac, pbkdf2, image_picker, csv, file_picker, scraper, flutter_svg, html, pulldown-cmark, xml, zip, validator, log, console-subscriber, tracing-appender, tracing-core
- Only in union: net/http, axum, tower, Gorilla, sqlx-postgres, Postgres, sqlx, wasmtime, Svelte, SvelteKit, Supabase, @effect/platform, Ratatui, crossterm, ed25519-dalek, github.com/rs/zerolog, tracing-opentelemetry, OpenTelemetry, opentelemetry-otlp, Tailwind CSS, tailwind-merge, rehype-stringify, remark, remark-parse, unified, vfile, @effect/opentelemetry

## Side by side

| | AppFlowy | union |
|---|---|---|
| Size | 412,249 lines written, 2,281 code files | 468,416 lines written, 1,841 code files |
| Who writes it | 0% of its commits signed by AI | 0% of its commits signed by AI. With CodeRabbit |
| Activity | Last push November 2, 2026, 6,367 commits, 78,194 stars | Last push July 25, 2026, 13,299 commits, 73,725 stars |
| Tests | 423 test files. 18% of its code files have a test that imports them | 120 test files. 10.4% 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, AppFlowy or union?

union, with 468,416 lines written; AppFlowy has 412,249.

The proof: [unionlabs/union's code at commit 031785b](https://github.com/unionlabs/union/tree/031785bb6dc6b957c624e62bc64c184409c97d7b)

### Which has more GitHub stars, AppFlowy or union?

AppFlowy, with 78,194 stars; union has 73,725.

The proof: [AppFlowy-IO/AppFlowy on GitHub](https://github.com/AppFlowy-IO/AppFlowy)

### Which has more tests, AppFlowy or union?

AppFlowy, with 423 test files; union has 120.

The proof: [AppFlowy-IO/AppFlowy's code at commit 8fcee27](https://github.com/AppFlowy-IO/AppFlowy/tree/8fcee27d9bd93aad4ee0191d5d8d915d6a9a4e93)

### Which was updated more recently, AppFlowy or union?

AppFlowy: its last push was on November 2, 2026, and union's on July 25, 2026.

The proof: [AppFlowy-IO/AppFlowy's commits on GitHub](https://github.com/AppFlowy-IO/AppFlowy/commits)

## Sources

- AppFlowy-IO/AppFlowy: Read on November 4, 2026, at commit 8fcee27 (https://github.com/AppFlowy-IO/AppFlowy/tree/8fcee27d9bd93aad4ee0191d5d8d915d6a9a4e93)
- unionlabs/union: Read on November 5, 2026, at commit 031785b (https://github.com/unionlabs/union/tree/031785bb6dc6b957c624e62bc64c184409c97d7b)

## 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.