A social media scheduler for agencies: keep every client's calendar in one place

If you post for other people’s businesses, the work multiplies fast. Three clients with four accounts each is twelve accounts, each with its own login, its own best posting times and its own voice. Add a client who wants a post up at 7am on a Saturday and you’re running your weekend around someone else’s calendar.

Small agencies and freelance social media managers usually hit the same wall: the writing is the paid part of the job, but the publishing, switching accounts, re-uploading the same picture and remembering which client wanted what when, swallows the margin.

This guide covers how to run every client’s posting from one calendar, what Postiz (affiliate link) offers for that at its real published prices, and when a cheaper setup is genuinely enough.

How this guide was put together: every Postiz price, plan limit and feature below comes from postiz.com/pricing and postiz.com, checked on 2 November 2026 (saved copies are kept with our records). Prices are in US dollars as shown and may exclude tax. We earn a commission if you buy through our Postiz links, at no extra cost to you. We haven’t run an agency’s client roster through several tools side by side, so this is a practical guide plus published plans, not a lab review.

The quick answer

• The method: write each client’s month in one block, load it into one scheduler with every client’s accounts connected, and let the tool publish.
• Postiz Team: US$39 a month, or US$31 a month billed yearly, for 10 connected accounts and unlimited team members. Pro: US$49 (US$39 yearly) for 30 accounts. Ultimate: US$99 (US$79 yearly) for 100 accounts; Postiz labels it “Best for agencies”.
• Client separation: every Postiz plan includes “customer groups”, which organise connected accounts by client or brand.
• No free plan; every plan starts with a 7-day free trial.
• Cheaper may be enough if you manage one or two clients on Facebook and Instagram only.

The problem: client work turns posting into a juggling act

The friction for an agency isn’t one big task, it’s dozens of small ones:

• Logins everywhere. Each client’s accounts live behind different logins, and switching between them on a phone is slow and error-prone. Posting to the wrong client’s account is the nightmare everyone has come close to.
• Clashing times. Client A’s audience is online at breakfast, client B’s at lunch, client C’s on Sunday evening. Posting live means your day is chopped into publishing slots.
• Helpers need access. If a junior or contractor helps, you either share passwords or do every post yourself.
• Proving the work. Clients want to see what’s going out and when. A pile of screenshots doesn’t make a plan.

The fix: one calendar, a month at a time, per client

1. Batch by client. Give each client one planning session a month: offers, events, evergreen tips, and anything seasonal.
2. Write once, adapt per network. Core message first, then a shorter version for X, a professional one for LinkedIn and a picture-first one for Instagram.
3. Load it into one scheduler with every client’s accounts connected, grouped by client so nothing crosses over.
4. Share the calendar view with the client (a screenshot or export of the month) before it goes live.
5. Check in weekly for comments and messages, which still need a person.

Where Postiz fits for an agency

Postiz is a hosted scheduler built around a calendar. The features that matter for client work, as described on its pricing page on 2 November 2026:

• Customer groups (on every plan): “organize channels into customer groups for easier management of multiple clients or brands”.
• Posting sets: “pre-define groups of channels with custom messages for faster posting to frequently used combinations”, useful when a client always posts to the same three accounts.
• Per-channel previews: Postiz’s homepage says each channel “gets its own preview so you can tweak copy, media, or hashtags per platform” before scheduling.
• Team members: Team and above include unlimited team members; the Standard plan is marked “No team support”.
• Unlimited posts on every plan, and analytics across connected accounts.
• Networks: Postiz’s FAQ lists X, LinkedIn, Instagram, Facebook, TikTok, YouTube, Threads, Pinterest, Reddit, Discord, Bluesky, Mastodon “and more”.

One thing we didn’t find on Postiz’s pricing page: client approval links or separate client logins. If your clients must approve every post inside the tool, check that during the trial rather than assuming it.

Source: postiz.com/pricing, checked 2 November 2026. Postiz says yearly billing saves about 20%. See the plans on Postiz’s pricing page (affiliate link).

Which plan for which roster?

Count connected accounts, not clients. Each social account is one “channel”.

• Solo freelancer, one or two clients, up to 5 accounts, no helpers: Standard, US$29 a month (US$23 yearly).
• Two or three clients, up to 10 accounts, or anyone helping you: Team, US$39 a month (US$31 yearly).
• Roughly 5 to 7 clients with four or five accounts each (up to 30): Pro, US$49 a month (US$39 yearly).
• Larger rosters (up to 100 accounts): Ultimate, US$99 a month (US$79 yearly).

Because the price is per plan rather than per account, the cost per client falls as you fill a plan. That’s the arithmetic to run against your own roster; we won’t promise a saving because it depends entirely on your numbers.

When a cheaper or free tool is enough

• One or two clients on Facebook and Instagram only: Meta Business Suite, Meta’s own free tool, schedules posts to a Facebook Page and an Instagram account (ads cost extra).
• A client who posts once or twice a week: posting by hand from a shared calendar may be simpler than another subscription.
• You need client approvals inside the tool: confirm Postiz does what you need during the trial, and if it doesn’t, look for a tool built around approvals.

A paid scheduler earns its place once you’re posting for several clients across several networks, or someone else needs to help without sharing passwords.

How to try it sensibly

1. Pick one client and write a real week of their posts.
2. Start the Postiz 7-day free trial (affiliate link), connect that client’s accounts and put them in a customer group.
3. Schedule the week, check every post publishes as expected, and invite a helper if you’re on Team or above.
4. Choose monthly billing first. Postiz’s FAQ says it refunds up to one month of fees if your last charge was within 120 days, and annual plans aren’t refundable.

Want to compare Postiz with other schedulers first? Our social media scheduler comparison for course creators and solopreneurs lays its plans next to three alternatives.

Our take

For a small agency or freelancer whose days are carved up by client posting times, the fix is batching each client’s month and publishing from one calendar. Postiz (affiliate link) does that with customer groups on every plan; Team at US$39 a month (US$31 yearly) adds unlimited team members for 10 accounts, and Pro and Ultimate cover bigger rosters. If you only handle Facebook and Instagram for one or two clients, stay free until you outgrow it.

Quick answers

What is the best social media scheduler for a small agency? One that groups accounts by client, lets helpers in without sharing passwords and prices sensibly at your account count. Postiz Team is US$39 a month (US$31 billed yearly) for 10 accounts with unlimited team members (checked 2 November 2026).

Can I organise clients separately in Postiz? Yes. Customer groups, included on every plan, organise connected accounts by client or brand.

Does Postiz have a free plan for agencies? No. Every plan has a 7-day free trial; paid plans start at US$29 a month.

How many accounts does Postiz Ultimate include? 100 connected accounts, at US$99 a month or US$79 a month billed yearly.

Sources

• Postiz pricing, plans, features and FAQ: postiz.com/pricing (checked 2 November 2026)
• Postiz homepage (per-channel previews): postiz.com (checked 2 November 2026)
• Meta Business Suite: How Meta Business Suite works and Create and manage posts, Meta Business Help Center (checked 2 November 2026)