A consumer app rarely has a buying committee. The person who needs it is a learner, a parent, or an instructor. They are not opening LinkedIn to book a demo. LinkedIn and X can still carry the product if each post teaches one thing the reader can use the same day.
This is a method, not a case study. It does not report signups, reach, or quotes.
The product in the example
Theorie3D lets learners practise the Dutch CBR theory exam for car, motorbike and scooter in interactive 3D traffic scenes. It is free to start, then a one-off payment, with no subscription.
Theorie3D is a sister product under Terminus Group, the company behind Postiv, FlowGent and AdBase. It is a useful example because the product is specific: one exam, three vehicle types, and scenes you can point at. It is not a testimonial, and this post does not name a price.
Start from a scene, not a slogan
The useful post is already in the product. Pick one traffic situation from a 3D scene and explain the rule in plain language.
A car post can walk through who goes first at a junction. A motorbike post can use the same junction and say where the rider should look. A scooter post can use a slower approach and a different mistake. Same scene, three readers, three posts. You are writing down the rule the scene already teaches.
Keep each post to one situation. If the caption needs a second rule, save it for the next post.
LinkedIn and X are not the same caption
On LinkedIn, write the situation, the rule, and the mistake people make. A short carousel fits when each slide is one beat: the scene, the rule, the mistake, what to do instead. LinkedIn shows the caption as plain text, so write it that way.
On X, use the same scene and fewer words. One post, or a thread of two or three posts, is enough. Do not paste the LinkedIn caption across. Cut it until someone who will not click can still learn the rule.
Postiv is the workspace for that split. Keep the scene notes in one place, draft the LinkedIn version and the X version, and schedule each one on the account it belongs to. The LinkedIn draft and the X draft stay separate. The source material is shared.
What to leave out
Do not add a pass rate, a learner count, or a quote you do not have. A scene and the rule it teaches is a complete post.
Also skip an exact price. "Free to start, then a one-off payment, no subscription" is the fact. A number belongs on the product site, and only if you are ready to keep it current.
A week from one scene
- The junction, for car learners, as a LinkedIn post.
- The same junction, for motorbike learners, with the look the rider needs.
- The scooter version, shorter, for X as well as LinkedIn.
That is three posts from one scene. Next week, pick the next scene. The plan does not need to be bigger than the product.
Frequently Asked Questions
What is Theorie3D?
Theorie3D lets learners practise the Dutch CBR theory exam for car, motorbike and scooter in interactive 3D traffic scenes. It is free to start, with a one-off payment and no subscription.
Is this a customer story?
No. Theorie3D is a sister product under Terminus Group, the company behind Postiv, FlowGent and AdBase. This article uses it as an example of posts a small consumer app can publish. It does not report results, quotes or a price.
Can the same notes become a LinkedIn post and an X post?
Yes. Write the scene and the rule once, then make a longer plain-text version for LinkedIn and a shorter version for X. In Postiv those stay separate drafts, so each one can be scheduled on its own account.





