Best Obsidian Alternatives (2026)

Obsidian advertises $0/mo but has 3 hidden fees adding +$16/mo. Here are cheaper alternatives in Database & Spreadsheet, ranked by true cost.

📊 64 tools analyzed•🔄 Updated April 2026•✅ Based on manual pricing research

Current Tool

Obsidian

Free local-first note-taking app with powerful linking. Personal use is free, but Sync ($4/mo) and P

Advertised: $0/mo

+$16/mo hidden fees

3 documented hidden fees • 82% confidence

Open-source Firebase alternative with Postgres database. Free tier is generous, then $25-$599/mo — but database size, ba

$0/mo

3 hidden fees (+$40/mo)

77% confidence

Database Size Overage: +$5Bandwidth Overage: +$25Edge Function Invocation Limits: +$10

All-in-one workspace for notes, docs, databases, and wikis. Affordable for small teams, but AI credit costs, automation

$10/mo

3 hidden fees (+$50/mo)

78% confidence

Notion AI Credits (Custom Agents): +$30Custom Automation Feature Gate: +$10API Access Paywall: +$10

Spreadsheet-database hybrid loved by teams. Simple to start, expensive to scale — record limits, automation caps, and at

$20/mo

4 hidden fees (+$45/mo)

80% confidence

Record Limit Forced Upgrade: +$25Automation Run Hard Cap: +$20Attachment Storage Silent Failure: +$0+1 more

Compare Obsidian vs alternatives with your actual usage numbers