Head-to-head · Twitter Alternatives
Bluesky vs Mastodon
Bluesky leads on 0 checks, Mastodon on 0, and 3 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreBluesky · 9.2/10
- Free planboth
- Most featuresBluesky · 2 of 2
Bluesky scores higher on our rubric for twitter alternatives: 9.2 against 9.1 out of 10; our editors rank them #2 and #3.
Bluesky is the better fit for free social posting with customizable feeds. Mastodon is the better fit for people seeking federated social networking and moderation.
- Bluesky fits best
Free social posting with customizable feeds
- Mastodon fits best
People seeking federated social networking and moderation
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Side by side
| Feature | Bluesky 9.2/10 Visit ↗ | Mastodon 9.1/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 9.2 | 9.1 |
| Ranking | #2 in Twitter Alternatives | #3 in Twitter Alternatives |
| Best for | Free social posting with customizable feeds | People seeking federated social networking and moderation |
| Pricing model | Free | Free |
| Starting price | Free plan | Free plan |
| Free plan | ✓ | ✓ |
| Free trial | — | — |
| Deployment | Cloud, Mobile | Self-hosted, Mobile |
| Platforms | Web, iOS, Android | Web, iOS, Android |
| Support | Email, Community, Docs | |
| Built for | Solo, Small business, Mid-market, Enterprise | Solo, Small business, Mid-market |
| Features Bluesky 2/2 · Mastodon 0/2 | ||
| Decentralized network | ✓ (best) | Not checked yet |
| Public posts | ✓ (best) | Not checked yet |
| Specs | ||
| Post length limit | 300 characters | Not checked yet |
| Federation protocol | At protocol | Not checked yet |
| Mobile apps | Ios and android | Not checked yet |
| Our review | ||
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| Cons |
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| Our verdict | Bluesky is a social networking service for people who want to publish posts, follow accounts, and join public conversations. It supports replies, reposts, and likes, with public text posts up to 300 characters. Available on the web, iOS,… Read the review → |
Mastodon is a free, open-source social networking platform for people and organizations who want to join or operate independent online communities. Users choose a server, follow accounts across compatible servers, and post to chronological… Read the review → |
Strengths and trade-offs
Bluesky — where it wins
- Choose community-built feeds or create and follow starter packs.
- Moderation lists and content filters help shape the posts you see.
- Public APIs support bots, clients, and custom feeds.
Where it doesn't
- Public text posts are limited to 300 characters.
- Its public conversations and feeds may not suit private communication needs.
- Support is listed through email.
Mastodon — where it wins
- Follow accounts across independent servers
- Post text, media, and polls to chronological timelines
- Filter content and moderate users, servers, and domains
Where it doesn't
- Server rules and moderation policies vary by operator
- Self-hosting requires running the software on your infrastructure
- Hosting costs vary when using an independent provider
- Bluesky9.2/10 · Free plan
A free social network with public posts, community-built feeds, and moderation controls.
Visit BlueskyFull verdict → - Mastodon9.1/10 · Free plan
A federated social network with chronological timelines and community-led moderation.
Visit MastodonFull verdict →
More comparisons
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- Threads vs Mastodon
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- Bluesky vs GETTR
- Bluesky vs Plurk
- Bluesky vs Weibo
- Bluesky vs Parler
- Mastodon vs Tumblr
All twitter alternatives comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update