posthell vs Sintra
Sintra sells a set of AI helpers for different jobs, one of them for social media. posthell does only social media, written from your week and approved by you.
By Rohan Gotwal, Founder, posthellUpdated October 20, 2026Sintra is the closest thing in this list to what posthell does. It sells AI helpers for business owners, singly or as a bundle, and its social media helper, Soshie, writes posts for your brand, plans a calendar, makes images and posts to Instagram, Facebook, LinkedIn, TikTok and YouTube, with a promise that it never shares anything without your approval. If you want one subscription for many kinds of help, writing, support, data and images, the bundle is the point. Two things to weigh as of this update. Sintra runs on a monthly allowance of credits, and credits are not refundable. And Trustpilot shows no score for it, citing a breach of its rules on incentivised reviews, with recent negative reviews mentioning credits running out and trouble cancelling. posthell does one job. You tell it what happened this week, it writes the posts in your voice for each of 9 networks, X, Threads, Bluesky and Pinterest included, and holds every one for your approval. Each plan states what it includes in plain numbers, and the trial sends a reminder the day before it converts.
posthell vs Sintra at a glance
| Compared on | posthell | Sintra |
|---|---|---|
| Pricing model | Three flat plans. Solo is $12 a month ($10 billed yearly), Pro $24 ($18) and Assistant $49 ($37). 7 days free on the monthly plans, card required. | AI helpers sold singly or as a bundle, with longer terms discounted and a monthly allowance of credits; a 14-day money-back guarantee instead of a free trial, as of this update |
| Who writes the posts | posthell writes them from a line about your week, or from your website at sign-up, in your voice and without inventing facts | Soshie, its social media helper, writes them for your brand |
| Built for | The owner of a small business with nobody on staff for social media | Business owners who want AI help across many jobs |
| Networks | 9 networks: X, LinkedIn, Instagram, Threads, Bluesky, Facebook, TikTok, YouTube and Pinterest. No Google Business. | Instagram, Facebook, LinkedIn, TikTok and YouTube, per Soshie's page |
| Approval before posting | Nothing publishes until you approve it: one post or a week of them at once, from your phone | Soshie's page says it never shares anything without your approval |
| Pictures | AI images every month (30 on Solo, 100 on Pro and 150 on Assistant), brand cards in your colours, and your own photo library | Soshie makes images and videos for your posts |
Why people switch from Sintra to posthell
Built for social media and nothing else
A bundle of helpers is useful if you want all of them. If what you need is a steady run of posts, posthell is built around exactly that loop: one line about the week in, a version for each network out, your tap to approve.
More of the networks your customers use
Soshie covers five networks as of this update. posthell posts to 9: X, LinkedIn, Instagram, Threads, Bluesky, Facebook, TikTok, YouTube and Pinterest.
A plan you can read in one line
The plans are simple: Solo is $12 a month ($10 billed yearly), Pro $24 ($18) and Assistant $49 ($37). Each plan says what it includes in plain terms: posts a month, AI-written posts a month and AI images a month. The monthly plans start with 7 days free and an email the day before you are charged.
Which one is right for you
To be fair to Sintra: A wide set of AI helpers in one subscription, with a social helper that writes, makes images and posts to Instagram, Facebook, LinkedIn, TikTok and YouTube after your approval.
- You only need help with social media, not a bundle of AI helpers
- You post to X, Threads, Bluesky or Pinterest
- You want to try it free before you pay, with a reminder before the trial ends
- You want AI help with more than social media in one subscription
- You want helpers for customer support, email or data as well
Moving from Sintra takes minutes, not a migration
Paste your website when you sign up and posthell shows you three finished posts, written for your business, before you pay. Then connect your accounts and approve the drafts. There is no content library to import and no dashboard to relearn.
Frequently asked questions
Is posthell a good Sintra alternative?
For social media, yes: posthell writes your posts from what happened in your week, makes a version for each network and waits for your approval. If you want AI helpers for support, email or data as well, Sintra's bundle covers more ground.
Does Sintra's Soshie post for you?
Yes. As of this update, Soshie's page says it connects to your profiles, writes, schedules and posts on Instagram, Facebook, LinkedIn, TikTok and YouTube, and never shares anything without your approval.
How is Sintra priced?
As of this update Sintra sells its helpers singly or as a bundle, with discounts for longer terms and a monthly allowance of credits, and offers a 14-day money-back guarantee rather than a free trial. posthell: Solo is $12 a month ($10 billed yearly), Pro $24 ($18) and Assistant $49 ($37), with 7 days free on the monthly plans, card required.
Where the Sintra facts come from
Checked on October 20, 2026. Plans and features change, so check with Sintra before you buy.
Related reading
Tell it what happened this week. Approve the posts.
posthell writes your posts in your voice, makes a version for each network you use (it publishes to X, LinkedIn, Instagram, Threads, Bluesky, Facebook, TikTok, YouTube and Pinterest) and schedules them. Nothing goes out until you approve it. Plans from $12 a month, with 7 days free on the monthly plans.