Post to Threads and Instagram without building a Meta app

No Meta app needed to post

Posting through Meta's APIs means creating a Meta app and, for anyone other than yourself, going through app review. Postwire skips that: the Chrome extension opens the Threads, Instagram and Facebook composers in your logged-in ops profile, fills the text and images and stops at the publish button for you to click.

A Meta app is now optional and only used to pull engagement metrics. If you add one, Postwire stores its rotating tokens encrypted and warns you seven days before one expires; without one, posting works the same and metrics are simply skipped.

Platform rules handled for you

Instagram needs at least one image and supports carousels of up to 10; its captions cannot carry clickable links, so Postwire writes 'link in bio' instead. Threads allows 500 characters and one link. Images are served from the Postwire hub, and the extension uploads them into the composer.

Default daily caps are 1 post on Instagram, 3 on Threads and 2 on a Facebook Page.

Frequently asked

Can I post to Instagram without a Meta app or app review?

Yes, for your own accounts: Postwire fills the post in Instagram's web composer and you click publish, so no Meta app or app review is involved. It does not post for accounts you are not logged into.

Does Postwire use the Chrome extension for Meta?

Yes. Since November 2026 every platform, Meta's included, is filled by the Chrome extension and published by your click. Meta's APIs are only used, optionally, for metrics.

What happens when a metrics token expires?

Posting is unaffected. If you connected a Meta app for metrics, Postwire flags the token seven days before expiry so you can refresh it before metrics stop.

Related

• Social media auto poster: the complete guide
• Auto post to multiple social media platforms from one package
• Meta Graph API: what an unreviewed app can do