Head to head
Missinglettr vs PostOnce (postonce.app)
Last updated 15 October 2026
Missinglettr turns existing articles into reviewed social drip campaigns. Current plans add AI generation, workspaces and profile allowances, with Agency white-label options. Confirm billing currency, annual pricing and free-tier availability.
- From
- Check current price
- Free scheduling
- Not confirmed
Flat-euro multi-network scheduler for local businesses and solo operators, with recurring posts and media tools.
- From
- €12a month, billed yearly
- Free scheduling
- No
Bottom line
Missinglettr and PostOnce (postonce.app) go after a similar buyer, so it's a close call. Missinglettr leans toward bloggers and content marketers repurposing articles into social posts; PostOnce (postonce.app) toward local businesses publishing to several networks.
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.
- Missinglettr posts to 7 networks, PostOnce (postonce.app) to 9.
- Only PostOnce (postonce.app) reaches TikTok, YouTube, and Threads.
Features compared
| Feature | Missinglettr | PostOnce (postonce.app) |
|---|---|---|
| AI captions | Yes | Not assessed |
| Basic analytics | Yes | Yes |
| Advanced reports | Yes | Not assessed |
| Bulk upload | Not assessed | Not assessed |
| Evergreen recycling | Yes | Yes |
| Team roles | Not confirmed | Not assessed |
| Approvals | Not assessed | Not assessed |
| Link in bio | Not assessed | Not assessed |
Platforms compared
| Network | Missinglettr | PostOnce (postonce.app) |
|---|---|---|
| Auto | Auto | |
| Auto | Auto | |
| X (Twitter) | Auto | Auto |
| Auto | Auto | |
| TikTok | No | Auto |
| Auto | Auto | |
| YouTube | No | Auto |
| Threads | No | Auto |
| Bluesky | Auto | Auto |
| Google Business | Auto | Not assessed |
Pricing
Prices use each tool’s billing unit. Annual equivalents are labeled as billed yearly; scaling rows show monthly costs and available annual rates.
Free plan not confirmed; check the current trial offer.
Check current price
No free plan.
- Lowest public entry price
- €12 a month, billed yearly
Whole-plan price; it doesn't scale per unit.
Missinglettr
Solo
Displayed $15/month; billing currency requires confirmation
- Accounts
- 3
- One workspace and one extra user
- 100 each: AI post, article and image generations
Pro
Displayed $39/month; billing currency requires confirmation
- Accounts
- 10
- Three workspaces
- 500 each: AI post, article and image generations
Agency
From displayed $147/month
- Seats
- Unlimited
- Accounts
- 25
- Unlimited workspaces
- White-label interface and reports
Enterprise
Custom configuration
- Increased capacity and integrations
- The official site is reachable and lists Solo, Pro, Agency and Enterprise. Previously stored free-plan and annual prices came from secondary listings and are not verified by the current offer.
- Agency AI generation figures conflict with the surrounding plan progression; confirm allowance before purchase.
- Campaigns require review and approval before first publication; this is not proof of a formal multi-user approval workflow.
PostOnce (postonce.app)
Solo
€12 a month billed annually
- Seats
- 2
- Accounts
- 10
- Scheduled posts
- Unlimited
- Run by Lucro Limited and founded by Sven van Staden. This is separate from postonce.to. Instagram Stories are not supported.
- Published EUR prices include VAT.
- Pro €30/month or €300/year; unlimited accounts, 3 workspaces, 5 users.
- Entry annual bill: EUR144.
Pros and cons
Missinglettr
- Blog-to-social drip campaigns
- Campaign review before publication
- Current AI post, article and image allowances
- Agency white-label options
- Current annual pricing and free-tier availability need confirmation
- Social-format support must match the intended campaign
- Some official plan details are internally inconsistent
PostOnce (postonce.app)
- VAT-inclusive euro plans for small-business workflows; Pro offers API access and multi-workspace reporting.
- No public free plan or trial.
- Instagram Stories are not supported.
Missinglettr vs PostOnce (postonce.app): FAQ
- Is Missinglettr or PostOnce (postonce.app) 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 Missinglettr or PostOnce (postonce.app) have a free plan?
- Free-plan availability is not confirmed for every tool in this comparison. See each current offer and any advertised trial terms.
- Which is better, Missinglettr or PostOnce (postonce.app)?
- Missinglettr is the stronger pick for bloggers and content marketers repurposing articles into social posts, while PostOnce (postonce.app) is the better fit for local businesses publishing to several networks. We don't score them; the right call comes down to how you post.