Who

Contentbuilder is built by Jarrel Pothoff, one developer in the Netherlands. Not a team, not a studio, and not a registered company — there is no Chamber of Commerce number to publish, and the terms do not name one either. If those two ever disagree, the terms are the ones that count and this page is wrong.

Why it works this way

Posting to 6 networks means posting the same thing 6 times into 15 differently shaped holes, each with its own crop, its own safe area and its own caption ceiling — and none of them shows you the result until it is public. That is the entire problem this app exists for. Everything else it does follows from it.

It is an Apple-platform app because that is where the work already happens: the photos are on the phone, the editing is comfortable on the Mac, and iCloud already moves things between them without another account to sign into.

Three decisions worth explaining

Publishing is a hand-off, not an API call

Contentbuilder copies your caption, saves your media, runs pre-flight checks and opens the platform's own app. You paste and post. This is slower than automatic posting, and it is deliberate: an app that posts for you must hold a login for your account, which means a token worth stealing and a permission you have to keep renewing. There is no such token here because there is no such feature.

The AI runs on your device, or not at all

Captions are recognised with Apple's on-device speech recognition, with on-device explicitly required. There is no server fallback to fall back to, so a device that cannot do it reports the feature unavailable rather than quietly uploading your audio. Silence removal is signal processing on the file. AI overlay text uses Apple Intelligence, and drops to offline suggestions when the model is not available.

Your work stays yours

There is no Contentbuilder account, no Contentbuilder server holding your projects, and no analytics SDK in either app. Sync goes through your own private iCloud database, which is your Apple account, not ours.

What I do not claim

Five things this site could say and deliberately does not, because they would not survive being checked:

That there is a company. There is not one yet. Purchases on iPhone are billed by Apple; there is no registered entity behind them.
That the app is available. It is not in the App Store, and there is no listing to pre-order from. Every "get early access" button on this site joins a mailing list, and nothing more.
That nothing ever leaves your device. Some things do, and they are all listed: an optional Spotify session if you connect one, a lookup for a preview clip, and the platform's own website or app when you finish a hand-off. What does not leave is your media and your drafts.
That the previews are pixel-exact. They are careful recreations, not screenshots. A video preview shows a still frame rather than playing, and the networks change their own layouts without telling anyone.
That one purchase covers both platforms. iPhone runs through Apple; the Mac app reads its subscription from an endpoint you configure. Until both sit on one channel, they are two.

Getting in touch

Support for anything about the app, and privacy@synccy.com for a data request. There is one person reading both.