# BettaFish vs TrendRadar
_Research & Data Agents · independent comparison_

> BettaFish and TrendRadar are both open-source research & data agents you can self-host for free. Licensing differs: BettaFish is GPL-2.0, TrendRadar is GPL-3.0. Neither is universally better — pick by fit.

## Side by side

**BettaFish**
- Open source · Agent · 42k★ · Python · GPL-2.0 · active 2 days ago
- Best for: Multi-agent sentiment analysis across social platforms and large comment datasets.
- Avoid if: You need English documentation — the project is documented in Chinese.
- [listing](https://agentsearchengine.app/agents/bettafish) · [official](https://deepwiki.com/666ghj/BettaFish)

**TrendRadar**
- Open source · Agent · 62k★ · Python · GPL-3.0 · active 1 month ago
- Best for: Filtering trending news into push alerts on WeChat, Telegram, Feishu, or Slack.
- Avoid if: You need English documentation — the project and its sources are China-focused.
- [listing](https://agentsearchengine.app/agents/trendradar) · [official](https://trendradar.sandev.cc)

## Key differences

- Licensing differs: BettaFish is GPL-2.0, TrendRadar is GPL-3.0.

## Which to choose

**Choose BettaFish if:** Multi-agent sentiment analysis across social platforms and large comment datasets.

**Choose TrendRadar if:** Filtering trending news into push alerts on WeChat, Telegram, Feishu, or Slack.

## FAQ

**What's the main difference between BettaFish and TrendRadar?**
Licensing differs: BettaFish is GPL-2.0, TrendRadar is GPL-3.0.

**Is BettaFish or TrendRadar better?**
Neither is universally better. BettaFish is the stronger fit for Multi-agent sentiment analysis across social platforms and large comment datasets; TrendRadar for Filtering trending news into push alerts on WeChat, Telegram, Feishu, or Slack. Use the side-by-side specs to decide by your own constraints.

**Is BettaFish or TrendRadar free?**
BettaFish is free to run and self-host; TrendRadar is free to run and self-host. Both are free to self-host — you only pay for the infrastructure and any model or API usage.

**Which is more popular, BettaFish or TrendRadar?**
By GitHub stars — a proxy for open-source adoption — TrendRadar is ahead (62k vs 42k). Stars measure attention, not necessarily the better fit for you.

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Source: [Agent Search Engine](https://agentsearchengine.app) — https://agentsearchengine.app/compare/bettafish-vs-trendradar