Head to head
PostFast vs Zernio
Last updated 15 October 2026
Multi-network scheduler with separate workspaces, a shared inbox, analytics, bulk import and API/MCP access.
- From
- €10a month, billed yearly
- Free scheduling
- No
Developer-oriented scheduling and publishing API with a calendar, queues, MCP and per-connected-account pricing.
- From
- Free
- Free scheduling
- Yes
Bottom line
Zernio is the pick for developers building social publishing into an app, and it's the only one of the two with a free scheduling plan. PostFast fits creators managing several networks better.
A verified price comparison requires the same billing term, currency and eligible workload. See each pricing section for the published terms.
Key differences
Where the two actually diverge, before the full tables.
- Zernio has a free scheduling plan; PostFast doesn't, though it offers a 7-day trial.
- PostFast posts to 11 networks, Zernio to 15.
Features compared
| Feature | PostFast | Zernio |
|---|---|---|
| AI captions | Not assessed | Not assessed |
| Basic analytics | Yes | Not assessed |
| Advanced reports | Not assessed | Not assessed |
| Bulk upload | Yes | Not assessed |
| Evergreen recycling | Not assessed | Not assessed |
| Team roles | Not assessed | Not assessed |
| Approvals | Not assessed | Not assessed |
| Link in bio | Not assessed | Not assessed |
Platforms compared
| Network | PostFast | Zernio |
|---|---|---|
| Auto | Auto | |
| Auto | Auto | |
| X (Twitter) | Auto | Auto |
| Auto | Auto | |
| TikTok | Auto | Auto |
| Auto | Auto | |
| YouTube | Auto | Auto |
| Threads | Auto | Auto |
| Bluesky | Auto | Auto |
| Google Business | Auto | Auto |
| Not assessed | Auto | |
| Snapchat | Not assessed | Auto |
| Telegram | Auto | Auto |
| Discord | Not assessed | Auto |
| Not assessed | Auto |
Pricing
Prices use each tool’s billing unit. Annual equivalents are labeled as billed yearly; scaling rows show monthly costs and available annual rates.
PostFast
Starter
€10 a month billed annually
- Accounts
- 4
- Scheduled posts
- 150
- Starter has 150 scheduled posts, 50 drafts and one workspace. Its analytics are limited.
- Creator €29; Growth €49; Pro (Agency) €99; Enterprise €239.
- Entry annual bill: EUR120.
Zernio
Build
First 2 accounts free; 10-account example is $48/month; currency and full graduated rates unconfirmed
- X API usage billed separately
- Previously called Late. The official rebrand says the product and infrastructure are unchanged.
- The first two accounts are free. The current example charges $48/month for ten accounts. X API usage is charged separately.
- Usage-based per account; pricing example: 10 accounts = 2 free + 8 × $6 = $48/month. Graduated rates beyond 10 not verified. X API usage passed through separately.
- The checked vendor pages show a dollar symbol without an explicit currency code. Paid comparison amounts remain unverified.
- The scheduler also supports messaging destinations. Discord, WhatsApp and Telegram are messaging channels, rather than public social feeds.
Pros and cons
PostFast
- API and MCP on every plan; account bundles rather than per-seat billing.
- Starter has limited analytics and a 150-post scheduling allowance.
Zernio
- API-first infrastructure for builders, with social, messaging and blog surfaces; do not equate all supported surfaces to social feeds.
- X API usage costs extra.
- The full graduated pricing table and dollar currency need confirmation.
PostFast vs Zernio: FAQ
- Is PostFast or Zernio cheaper?
- A verified price comparison is unavailable for these configurations. Check the current billing term, currency, required capacity and plan features before comparing totals.
- Does PostFast or Zernio have a free plan?
- Zernio has a free plan; PostFast does not, though it offers a 7-day trial.
- Which is better, PostFast or Zernio?
- PostFast is the stronger pick for creators managing several networks, while Zernio is the better fit for developers building social publishing into an app. We don't score them; the right call comes down to how you post.