Guide
Demopost vs ChatGPT for writing posts about your app
ChatGPT writes a good post if you describe your app well and check every sentence. Demopost starts from your screens instead of your description, ties every post to the screen it came from, makes the card, and refuses to add facts you did not give it. If you post about one app once, a chat assistant is enough. If you need a week of posts from the same product on three platforms, with cards, and you do not want to proof-read for invented claims, that is what Demopost is for.
Where a chat assistant is the better choice
- One post, any topic, right now. Nothing beats a chat box for that.
- You enjoy writing and want a sparring partner, not a draft.
- Your product has no screens to show, for example an API or a library.
Where Demopost is the better choice
| Chat assistant | Demopost | |
|---|---|---|
| Starting material | Your written description, which you must write first | A screen recording or a URL; the screens are cut and described for you |
| Evidence | None; it writes what you tell it and sometimes more | Every post names its screen and claims only what that screen's description says |
| Cards | Separate tool | A 4:5 card per post with the headline on the frame |
| Generic post | Post for a named subreddit, first comment with the link, flair, rules checklist | |
| Reels | A script with no footage plan | Hook, voiceover, caption, and the screens to show in order |
| Invented facts | Your job to catch | Drafts with numbers or functions the screens do not show are dropped and refunded |
| Keeping track | Chat history | Drafts, posted status and URLs per product |
| Price | Free or a monthly plan | Credits: 1 per post with card, 2 per batch of reel scripts, 5 per website recording; 10 free |
What both of them will not do
Neither posts for you. Demopost is deliberate about it: it never asks for access to your LinkedIn or Reddit account, so there is nothing to revoke and no platform review to fail. You copy, you post, you mark it done.
A fair test
Take one screen of your app. Describe it to a chat assistant and ask for a LinkedIn post. Then upload a recording with that screen to Demopost and write from it. Compare the two for one thing only: which post makes a claim the screen cannot back up. That is the difference you are paying for.