PostWire412 users asked. We finally shipped dark mode 🌑 But it took 3 weeks — because we rebuilt every single chart from scratch. The details nobody sees = the work that matters most. Drop a 🖤 if you wanted dark mode in your invoicing app #darkmode #saas #buildinpublic #productdesign #indiedev
PostFast alternative: a free plan that stays free, and 3 businesses for $19 a month
PostFast is a scheduler with a REST API, an MCP server, a ChatGPT plugin and a social inbox, sold in EUR by social accounts after a 7-day trial. PostWire writes a different post for each network from one idea and publishes it — from the dashboard, the REST API, n8n or an AI agent — priced per business, with a free plan that has no time limit.
Short answer. As a PostFast alternative, PostWire has a free plan with the REST API, the MCP server and signed webhooks in it, and 3 businesses for $19 a month — PostFast starts at €15 a month for 4 social accounts and 1 user, after a 7-day trial (postfa.st/pricing, read Nov 10, 2026). 10 businesses are $29 on PostWire Pro; 30 social accounts are €49 on PostFast Growth.
Every PostFast price and feature here was read on PostFast's own pages on Nov 10, 2026, with the link next to it. If they changed since, their page wins.
PostFast alternative at a glance: PostWire and PostFast
| PostWire | PostFast | |
|---|---|---|
| What you pay for | One business — every network connects on every plan; paid plans post to all of them at once | Plans by social accounts and users: 4 accounts and 1 user on Starter, 12 and 5 on Creator, 30 and 8 on Growth, 120 and 15 on Pro (Agency) |
| Cheapest paid plan | $19 a month (3 businesses) | €15 a month, or €150 a year billed yearly (Starter, 4 social accounts, 1 user) |
| Free plan | Yes — 1 business, 10 posts a month, 2 networks per post, 3 scheduled at a time, no card | A 7-day free trial with no credit card; after it the account is paused until you pick a plan |
| 10 businesses × 5 networks | $29 a month | €49 |
| Writes a different post per network from one idea | Yes — one request writes them all | One composer for all platforms; writing a different post per network is not listed on its pricing page |
| MCP server for AI agents | Hosted, API key or OAuth 2.1, 26 tools | Hosted MCP connector and npx postfast-mcp on every plan; listed in the ChatGPT plugin directory |
| X (Twitter) | Yes, on paid plans, through PostWire's X app — no X developer account of your own; X credits included every month (Pro: 150) | Yes, on every plan, with X's own caps (Starter: 2 X accounts, 14 link posts a month) |
| Refund or guarantee | 14 days on paid plans | Not listed |
Where PostWire is better than PostFast
- A free plan that stays free. 1 business, 10 posts a month, 2 networks per post, with the REST API, the MCP server, the n8n node and signed webhooks, no card and no time limit. PostFast has a 7-day trial; after it the account is paused.
- 3 businesses for $19 a month. PostWire Starter keeps 3 businesses apart, each with its own networks, and 1,000 posts a month. PostFast Starter (€15) holds 4 social accounts in 1 workspace; 3 businesses on 4 networks each are 12 accounts, Creator, €29 a month.
- 10 businesses for $29 a month. PostWire Pro covers 10 businesses with every network in each post. On PostFast, 10 businesses on 3 networks each are 30 accounts: Growth, €49 a month; on 5 networks each, Pro (Agency), €99.
- Signed webhooks even on the free plan, retried 9 times over about 2 days. PostFast's webhooks come with its paid plans and its 7-day trial, with up to 8 attempts that end within about a day (its webhook docs).
- Discord and Mastodon published directly, next to TikTok, Instagram, YouTube, LinkedIn, Facebook Pages, Bluesky, Telegram and X. PostFast's list of 11 platforms does not include them.
- Each network's post written in one call:
generate_poststurns one idea into a different post per network on every plan, the free one included, and the next call publishes them.
Who PostWire is for
- You want a free plan to build on with the API, webhooks, n8n or an AI agent, with no trial clock.
- You post for several brands: 3 businesses are $19 and 10 are $29 here, with no count of social accounts.
- You announce to a Discord community or Mastodon as well as on TikTok, Instagram and LinkedIn.
10 businesses on 5 networks each: the monthly bill
An agency or a freelancer with ten clients, each on five networks, about 20 posts per client a month. That is 50 connected accounts, which is where the pricing unit decides the bill.
| Tool | How it's counted | Per month |
|---|---|---|
| PostWire Pro | 10 businesses fit in Pro (10 businesses, unlimited posts, fair use 10,000 a month; 10 × 20 posts × 5 networks = 1,000) | $29 |
| PostFast Growth | 10 businesses × 3 networks = 30 social accounts: Creator holds 12, so it is Growth, which holds 30 in 10 workspaces | €49 |
Monthly billing in USD, before tax. Month to month, in EUR, as PostFast's pricing page showed it on Nov 10, 2026. With 5 networks per business (50 accounts) it is Pro (Agency), €99 a month. Source: postfa.st/pricing, read on Nov 10, 2026; PostWire's prices come from the code that bills you.
What “a different post per network” means
PostWire writes each network's version from one idea in one request — a hook for TikTok, a searchable title and tags for YouTube, a longer first-person post for LinkedIn, a short community message for Telegram or Discord — and then publishes them. The same request works from the dashboard, the REST API, the n8n node or an AI agent.
The idea: Our invoicing app just shipped dark mode. 412 users asked for it, and it took us 3 weeks because we redid every chart.
Dark Mode is Live 🌑 | Why It Took 3 Weeks to Ship
Dark mode is finally live in our invoicing app — and 412 users asked for it before we built a single pixel. #darkmode What looks like a simple color switch was actually a full 3-week rebuild. Every chart, every data visualization, every graph had to be redesigned from the ground up to work in a dark environment. We weren't going to ship something that half-worked. In this video, we walk you through: — Why dark mode in a data-heavy app is way harder than it sounds — How we prioritized this based on real user requests — The chart redesign process, color contrast decisions, and accessibility checks — What we'd do differently next time If you're building a SaaS product or thinking about shipping dark mode yourself, this one's for you. The stuff users never see is usually the hardest work. #buildinpublic #saasdesign Timestamps: 0:00 — Why 412 people finally convinced us 1:30 — The chart problem nobody warned us about 4:00 — Our redesign process 7:20 — The final result
412 users asked for dark mode. We shipped it last week. Here's the part that surprised us: It took 3 weeks — not because dark mode is hard, but because we have charts. Every chart in our invoicing app had to be rebuilt from scratch. Colors that look clean on a white background? They're invisible or eye-straining on dark. Contrast ratios that pass accessibility standards in light mode? Fail completely in dark. So we didn't just flip a CSS variable and call it done. We redesigned every data visualization. Every axis label. Every tooltip. Every legend. Three weeks of work that most users will never consciously notice — and that's exactly the point. We track feature requests in a dead-simple spreadsheet. When dark mode crossed 400 votes, it jumped straight to the top of the queue. No roadmap committee. No prioritization framework. Just 412 real people saying the same thing. The lesson we keep relearning: Listening to users is easy to say and easy to fake. Actually doing it means sometimes rebuilding things you thought were finished. We think that's the job. If you're building a product right now — how do you decide when a feature request has earned its spot on the roadmap? #BuildInPublic #SaaS #ProductDevelopment
Real output from PostWire's writer on Sept 26, 2026, not edited (23.4 s for six networks; three shown). You review and edit before anything is published.
The 10 networks PostWire publishes to
Every network PostWire's production setup publishes to on Oct 5, 2026, and whether PostFast lists it on its own page (read Nov 10, 2026), where its full list has 11. "Not listed" means we could not find it there.
| Network | PostWire | PostFast |
|---|---|---|
| TikTok | Live approved Jul 7, 2026 | Yes |
| Live business/creator | Yes | |
| Facebook Pages | Live Pages | Yes |
| YouTube | Live | Yes |
| LinkedIn profile | Live text posts | Yes |
| X | Live paid plans, X credits | Yes |
| Bluesky | Live | Yes |
| Mastodon | Live | Not listed |
| Telegram | Live | Yes |
| Discord | Live | Not listed |
PostFast pricing in 2026, plan by plan, and PostWire's
PostFast
| Plan | What's included | Per month |
|---|---|---|
| Starter | 4 social accounts, 1 user, 1 workspace | €15 |
| Creator | 12 social accounts, 5 users, 4 workspaces | €29 |
| Growth | 30 social accounts, 8 users, 10 workspaces | €49 |
| Pro (Agency) | 120 social accounts, 15 users, 30 workspaces | €99 |
Per month in EUR, month to month, as PostFast's pricing page showed them on Nov 10, 2026; billed yearly they are €150, €288, €480 and €990 a year. Every plan starts with a 7-day free trial; Enterprise is €239 a month for 500 accounts. From PostFast's pricing page, Nov 10, 2026.
PostWire
| PostWire plan | Businesses | Posts a month | Per month |
|---|---|---|---|
| Free | 1 | 10 | $0 |
| Starter | 3 | 1,000 | $19 |
| Pro | 10 | Unlimited (fair use 10,000) | $29 |
| Agency | 50 | Unlimited (fair use 50,000) | $99 |
| Scale | 200 | Unlimited (fair use 150,000) | $299 |
Per business — every network connects on every plan; paid plans post to all of them at once. AI writing included. A post counts once per network. Billed monthly, or yearly at 20% off. Full pricing.
Sources, all read on Nov 10, 2026:
- Pricing, machine-readable twin of the pricing page (EUR plans, social accounts, users, workspaces, yearly prices, 7-day trial with no credit card, the 11 platforms, X caps, what happens after the trial): postfa.st/pricing.md
- Webhooks docs (on every plan including the 7-day trial; up to 8 attempts, the last within about a day): postfa.st/docs/webhooks
- Site overview for LLMs (ChatGPT plugin directory, hosted MCP connector, npx postfast-mcp, n8n, Zapier, Make): postfa.st/llms.txt
Questions people ask
Is PostWire a good PostFast alternative?
Yes, if you want to start free or post for several businesses: PostWire's free plan includes the REST API, the MCP server and signed webhooks with no time limit, 3 businesses are $19 a month, and 10 are $29 against €49 for 30 accounts on PostFast Growth. PostWire also publishes to Discord and Mastodon. PostFast covers Threads, Pinterest and Google Business Profile, which PostWire does not publish to today.
Where is PostWire better than PostFast?
A free plan that stays free. 1 business, 10 posts a month, 2 networks per post, with the REST API, the MCP server, the n8n node and signed webhooks, no card and no time limit. PostFast has a 7-day trial; after it the account is paused. 3 businesses for $19 a month. PostWire Starter keeps 3 businesses apart, each with its own networks, and 1,000 posts a month. PostFast Starter (€15) holds 4 social accounts in 1 workspace; 3 businesses on 4 networks each are 12 accounts, Creator, €29 a month. 10 businesses for $29 a month. PostWire Pro covers 10 businesses with every network in each post. On PostFast, 10 businesses on 3 networks each are 30 accounts: Growth, €49 a month; on 5 networks each, Pro (Agency), €99. Signed webhooks even on the free plan, retried 9 times over about 2 days. PostFast's webhooks come with its paid plans and its 7-day trial, with up to 8 attempts that end within about a day (its webhook docs). Discord and Mastodon published directly, next to TikTok, Instagram, YouTube, LinkedIn, Facebook Pages, Bluesky, Telegram and X. PostFast's list of 11 platforms does not include them. Each network's post written in one call: generate_posts turns one idea into a different post per network on every plan, the free one included, and the next call publishes them.
How much does PostFast cost compared to PostWire?
PostFast charges plans by social accounts and users: 4 accounts and 1 user on Starter, 12 and 5 on Creator, 30 and 8 on Growth, 120 and 15 on Pro (Agency); its cheapest paid plan is €15 a month, or €150 a year billed yearly (Starter, 4 social accounts, 1 user) (read on Nov 10, 2026 from https://postfa.st/pricing). PostWire charges per business — every network connects on every plan; paid plans post to all of them at once: Free for 1 business (2 networks per post), $19 for 3, $29 for 10, $99 for 50. For 10 businesses on 5 networks each: €49 on PostFast against $29 on PostWire.
Does PostWire post to X or Reddit?
X: yes, as a pay-per-use add-on of the paid plans (X charges for every post): 1 X credit = 1 X post, 10 for a post with a link, +1 per image or video, with X credits included every month on Starter, Pro, Agency and Scale; not on Free. Reddit: not yet, it is waiting on Reddit's API access approval. Also live: TikTok, Instagram, Facebook Pages, YouTube, LinkedIn (personal profiles), Bluesky, Mastodon, Telegram and Discord.
Which PostFast alternative has a free plan?
PostWire. Its free plan has no time limit and includes the REST API, the MCP server, the n8n node and signed webhooks: 1 business, 10 posts a month, 2 networks per post, no card. PostFast has a 7-day free trial with no credit card, after which the account is paused until you pick a plan (pricing page, read Nov 10, 2026).
How much does PostFast cost?
On Nov 10, 2026 PostFast's pricing page listed, in EUR, month to month: Starter €15 (4 social accounts, 1 user), Creator €29 (12 accounts), Growth €49 (30 accounts), Pro (Agency) €99 (120 accounts) and Enterprise €239 (500 accounts); billed yearly they are €150, €288, €480, €990 and €2,388 a year.
Do PostFast and PostWire have webhooks?
Both sign their webhooks. PostWire's are on every plan, the free one included, and a failed delivery is retried 9 times over about 2 days, with a delivery log per endpoint. PostFast's are on every plan and the 7-day trial, with up to 8 attempts that end within about a day (postfa.st/docs/webhooks, read Nov 10, 2026).
Do PostFast and PostWire work with ChatGPT and Claude?
Both have a hosted MCP server that ChatGPT, Claude, Cursor and other agents can use, and PostFast is listed in the ChatGPT plugin directory. PostWire's MCP server is on every plan, the free one included; an agent can write a different post per network with generate_posts and schedule it up to 365 days ahead.
Can I move from PostFast to PostWire?
Yes. Connect the same accounts to PostWire (each network signs in on its own page), and schedule the posts you still have queued with a CSV through bulk upload, or from ChatGPT, Claude or another agent with PostWire's MCP server.
Is there a free plan and a refund?
Yes. The free plan covers 1 business, 10 posts a month and 2 networks per post — every network connects free — with no card and no time limit. Paid plans can be refunded in full within 14 days of the first payment, through the support form.
What a tool costs for your clients: 3 clients · 5 clients · 10 clients · 25 clients · 50 clients · every tool, 3 to 50 clients.
Switching posting APIs: posting APIs compared two at a time · switching kits · request converter.
For agencies: Social media tool for agencies (50 clients) · White-label social media scheduler · Client approval tool for agencies · Sendible alternative for agencies · SocialPilot alternative for agencies · Herramienta de redes sociales para agencias (marca blanca) · Agency Founding 20: $59 a month for 12 months.
Type one idea and see the post each network gets.
The demo on the home page writes live, with no account, and never publishes. The free plan covers one business — every network connects free, 2 networks per post — with no card and no time limit. Paid plans have a 14-day refund.
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