User guide

Write once, publish everywhere. The six stages below follow the order you meet them on your first run.

19 September 2026

1Getting started

Mythos gathers your social pages in one place: write one post, pick the channels, then publish now or set a time. The first three things to do, in this order.

1
Create an account
Sign up with an email and a password. No card, nothing to connect up front.
2
Connect at least one channel
With no channel connected, Overview only shows the invitation to connect — everything else needs somewhere to publish to. See the next stage.
3
Write your first post
Open Studio, choose a post type, pick your channels, write the caption, then publish or schedule.
4
Come back to Overview
The “Today” card lists the day's posts and the state of each channel; the Growth chart draws the trend once numbers arrive.

Note

The sidebar follows the order of the work: Overview and Plan at the top, then Content (Studio, Media tools, Library), then Publishing (Posts, Calendar, Bulk, Analytics). Channels, Members and Settings are not there — they are administration, and they live in the avatar menu at the top right.

2Connecting channels

Open the avatar menu at the top right and choose Channels. The page has two layers: the account you log in with, and the pages that account holds.

1
Connect with Facebook
This is the main button and the common path. After logging in you pick which pages to bring in — you do not have to take all of them.
2
One account, one group of pages
The proxy is set on the account and the whole group follows it. To send one page out another way, change it on that page alone; it is then marked “own” so you never have to compare by eye.
3
Add another platform
The “Add a platform ▾” menu holds Instagram, Threads, TikTok and the rest. Instagram rides on the same Meta app as Facebook; Threads uses its own credential pair.
4
Other ways in
At the end of that menu, after a separator: paste a Page token directly, or create a mock channel to rehearse the flow without touching a real page.
5
Reading the status labels
A label only changes colour when there is something to say. “Mock” is a rehearsal channel; “Expired” means the token has gone quiet and you must log in again before anything will publish.

Note

Disconnecting deletes nothing on the platform — published posts stay exactly where they are, you only lose the ability to publish and read numbers from here. Disconnect a whole Facebook account and every page under it goes too, along with those pages' post history.

3Writing and publishing

Studio is where posts are written. The order of steps in it is not arbitrary: the post type decides which platforms you can pick, so it comes first.

1
Choose the post type first
Text, Image, Video or Story. Each type is supported by a different set of platforms — choose Story and channels without Stories simply do not appear.
2
Pick your channels
Pick as many as you like, across platforms. One post sent to many places is still one post in your list.
3
A shared caption, then per-platform ones
Write one caption for everything. The per-platform caption boxes only open once you have picked two or more platforms — and a platform's own caption applies to every account you selected on that platform.
4
Add media
Drag and drop, choose files, or paste straight from the clipboard. Oversized images are shrunk to fit the storage ceiling — the platforms compress them to about that anyway. You can crop, and the app warns which part will be lost when your ratio does not match the platform's.
5
Preview before you publish
The preview rebuilds the post the way each platform will show it, including where the caption gets truncated.

Note

Captions and hashtags you have used are kept. The “Past captions” and “Used hashtags” panels are searchable and one click drops them back in — no need to remember what you wrote last time.

4Scheduling

Set the time inside the composer, then manage everything you have queued from Calendar and Posts.

1
Set a time as you write
Pick a date and time with its timezone. Leave it unset and the post goes out immediately.
2
Calendar
View by month or week. Drag a scheduled post to another day to reschedule it; drag a draft onto a day to schedule it.
3
Posts
Filter by All, Scheduled, Published, Drafts and Failed — plus filters for platform, account, source and time range.
4
Posts go out without you
A background runner sweeps on the server every two minutes, so a post can be up to about two minutes later than its time. Closing the laptop or the browser changes nothing.

Note

A published post can no longer be moved. Drag one onto a moment that has already passed and the app shifts it a few minutes into the future rather than failing; drop it on a day that is already over and it refuses.

5Bulk scheduling

For when you already have a folder of images or videos: drop it in, each file becomes a post, then spread the whole batch across a schedule in one go. Up to 90 posts per batch.

1
Pick the channels for the batch
Every post in the batch publishes to exactly the channels you choose here.
2
Drop files or a whole folder
One file is one post. A file has to finish uploading before it can be scheduled.
3
A shared caption, with variants
Write one caption for all of them. The {Hi|Hey|Yo} syntax lets each post pick one wording at random, so the batch does not read as identical.
4
Spread the schedule
Set a start date and time and how many posts per day (1–24). Turn on randomising and each post shifts by 0–55 minutes in 5-minute steps, so you are not posting at the same minute every day.
5
Set the order
Card order is publish order — the top one goes first. Drag a card or use the arrows; the times stay with the positions.

Note

Before you confirm, the app stops you if any post is missing a caption, a file is still uploading, a file failed to upload, or a platform cannot take that file type. Nothing goes out half-scheduled.

6Reading the numbers

Analytics gathers the numbers for every published post. Before reading them, it helps to know where they come from — otherwise they are easy to misread.

1
Numbers arrive hourly
The server fetches them every hour on its own. For an immediate pull, press “Refresh metrics”. Asking more often returns nothing new: platforms update their counters on their own rhythm.
2
Cumulative is not Daily
Platforms only report a lifetime counter, so “Cumulative” draws that counter and the headline number is its value on the last day — not the days added together. “Daily” takes the difference between two consecutive snapshots, meaning what was gained that day, and the headline is the total gain across the window.
3
Day / Week / Month is a separate thing
That is how thick each point on the x-axis is, unrelated to cumulative versus daily. In cumulative mode a week takes the last snapshot of that week; in daily mode a week is its days added up.
4
History starts at the first snapshot
Not at the date the post went out. With fewer than two days of data the chart says so plainly rather than drawing a line through a single point.
5
A fresh post reading 0 is normal
Facebook aggregates post-level views after a few hours, so a post that just went out reads 0 until that catches up.

Note

A post deleted from the platform keeps the last numbers it reported and is marked “deleted” — your history does not vanish with the post.