Instagram · Threads · X · LinkedIn # Caption, carousel, collage — written in your voice, built to a marketing goal. CTR is the content creation app for creators who are also their own marketer. It writes the caption and designs the post from your facts, in one go — so every post does one job: reach, trust, or sales. ![A CTR carousel export: three slides — the hook, a body slide with a photo collage, the CTA.](https://ctr-app.com/home/hero-carousel.webp) Brand Voice Memory ## AI that sounds like you — not like AI. Add 1–3 of your past posts so CTR can learn your voice. Your voice profile Extracted from 3 references The same brief, written two ways. Generic AI Unlock the power of productivity! In today's fast-paced world, leveraging the right systems is absolutely essential for success. Let's dive in! Your voice I rebuilt my client workflow three times this year. Read more: [Instagram caption generator](https://ctr-app.com/features/post-caption-generator) Design ## The structure of a sale, in slides. A CTR carousel is written to its slides — hook, body, CTA — and the text is sized to the slot before you see it. No overflow, no placeholder. ### Hook → body → CTA Every slide has a role, and CTR writes to it: the hook stops the scroll, the body carries one point per slide, the CTA asks for one thing. The topic's content function shapes the beats. - hook - body - CTA ![Three slides of a CTR carousel export: the hook, a body slide and the CTA.](https://ctr-app.com/home/design-roles.webp) ### Collage inside the post The Collage element puts a multi-photo grid inside one slide, so a collage is part of the carousel, not a separate app. ![One carousel slide from CTR with a multi-photo collage grid.](https://ctr-app.com/home/design-collage.webp) ### Text that fits Every slot has a character budget, so the text fits before you see it. 1–10 slides in 4:5, 1:1 or 9:16, designer templates restyled to your brand colours and a font pair, and a PDF export for LinkedIn. ![CTR's template picker on iPhone restyling one slide to the brand colours.](https://ctr-app.com/home/design-fit.webp) CTR is a post maker that writes the carousel, not only lays it out. Read more: [AI carousel maker](https://ctr-app.com/features/carousel-maker) Built to a goal ## Every post has a job. CTR writes to it. A topic in CTR carries who you write for, what the reader should do next and which function the post serves. The text follows that — not a template. Topic goal What should the reader do after reading? Content function Reach · Answers · Cases & proof · Objection handling · Selling · Personality · Need formation Facts & stories CTR draws on these instead of inventing facts. Search phrase One phrase your audience actually searches for. Posts in this topic open with it. These fields are the marketing tools inside every topic: set the marketing goal once, and each post in the topic is written to it. Read more: [AI marketing tools for content creators](https://ctr-app.com/features/marketing-tools) ![CTR Topic Settings on iPhone with Topic name, Audience, Content category, Topic goal and Content function filled for a sample topic.](https://ctr-app.com/home/topic-settings.webp) The cost ## How long does one post take you today? Writing Designing Reformatting A single post typically takes 2–4 hours end to end. 12 posts a month. 24–48 hours of your life. CTR's target under 5 minutes a post. Questions ## Before you install ### Is CTR a content creator app or a marketing tool? Both halves of one job. It is a content creation app — caption and post design in one go — and every post is built to a marketing goal you set on the topic: reach, answers, proof, selling. It is not a scheduler or an ads tool. ### I'm a creator, not a marketer. Is this for me? Yes — that is who it is for. You do not set up campaigns; you tell a topic who you write for and what the reader should do next. CTR writes to that. The marketing is in the structure of the post, not in extra work. ### What is Brand Voice Memory? CTR learns how you write from 1–3 of your own past posts. It keeps that style profile and applies it to every post you write. ### Which platforms does it write for? Instagram, Threads, X and LinkedIn. You set the platform on a topic, and a post is written to a length that fits it — carousels, posts and threads from one idea, without rewriting it for each one. Designs start from built-in social media post templates, restyled to your brand. ### Does CTR invent facts or numbers? No. Every topic has a Facts & stories field — your real numbers, cases and quotes — and CTR writes from those. When there is nothing there to use, it does not make a number or a case up; it writes from observation and the mechanism instead. ### What does "built to a marketing goal" mean for one post? Each topic carries a goal and a content function — reach, answers, cases and proof, objection handling, selling, personality, need formation. The text and the slide roles follow it. The same facts become a different post for a different job. ### What does it cost after the free week? After the week the subscription continues at your region's price; Apple shows it before you confirm, and nothing is charged during the trial. Cancel any time in Settings › Apple ID › Subscriptions. ### Which AI is under the hood? AI models reached through OpenRouter write the text and transcribe your voice when you record an idea. Only the request you just made is sent, through CTR's gateway — never your library. ### Where does my data live? On your device. Your topics, posts, reference posts and edit history are stored locally — CTR does not run a backend that keeps your content. ### What do I need to run it? An iPhone or iPad running iOS 26 or iPadOS 26 or later. There is no Android version. ### Can CTR schedule my posts? CTR plans and reminds — it does not auto-post. You pick a time, the app reminds you when it arrives, and your post is ready to publish. Publishing stays in your hands, on your account. Get started ## Your next post, in your voice. 7-day free trial. Cancel any time in Settings › Apple ID › Subscriptions.