Slideshows: the most underrated format for apps

When people plan short-form video for an app, they usually picture talking heads, screen recordings and trending sounds. Slideshows rarely make the list. That is a mistake, especially for small teams: a slideshow is cheap to make, easy to iterate on, and a surprisingly good fit for the kind of message software products need to get across.

What we mean by a slideshow

A slideshow is a short sequence of images, each carrying a line or two of text, that the viewer moves through at their own pace or watches as a simple video. On TikTok it can go out in photo mode; on Instagram as a carousel. On platforms without a native image carousel, the same slides are rendered into a short vertical video.

The important part is not the images. It is the structure: one idea, broken into a few steps, each step on its own screen.

Why slideshows work for apps and SaaS

Software problems are explanations

Most apps solve a problem that takes a sentence or two to describe properly. "Your invoices are scattered across three inboxes" is not something you can show in a single frame of video. A slideshow gives each part of the explanation its own screen, so the viewer gets the whole thought without you needing to film anything.

The viewer controls the pace

In a carousel, people swipe when they are ready. That means dense or specific text is still readable, which is rarely true for text flashing past in a video. It also means a viewer who is interested can linger, and a viewer who swipes back to re-read is clearly paying attention.

They are fast to make and fast to change

A slideshow is text plus images. You can write five variations of the same idea in the time it takes to film one talking-head clip, and you can change a single slide without redoing the rest. That makes slideshows ideal for testing hooks and angles: keep the structure, swap the first slide, see which version people stop for.

They do not need a face or a voice

Plenty of indie developers do not want to be on camera, and plenty of small SaaS teams do not have anyone who wants to be either. Slideshows sidestep the problem entirely. Your writing does the work.

A structure that works

The simplest reliable structure mirrors how people think about a problem:

1. The hook — a first slide that names a specific moment or frustration. This is the only slide most people see, so it gets the most effort.
2. The problem — what actually goes wrong in that moment.
3. Why it hurts — the cost: time, money, stress, embarrassment.
4. The turn — what changes the situation. This can be a tip, a mindset or your product.
5. The closing — a soft ending, or a call to action if this post is meant to mention the app.

You do not need all five every time, and you should not force a product mention into every slideshow. A slideshow that simply explains a problem clearly, with a useful tip at the end, is a perfectly good post, and it makes the next one that does mention your app more credible.

This is also how Reachira's campaign generator builds slideshow posts: the hook, the angle's problem and why it hurts, then the closing, with the product named only in the share of posts you choose.

Writing the slides

Some practical rules that hold up across platforms:

• One idea per slide. If a slide needs two sentences, it probably wants to be two slides.
• Write for the thumb, not the page. Short lines, plain words, no jargon your users would not use.
• Make the first slide stand on its own. It appears in the feed without context. It needs to make sense and create a small tension.
• Keep a consistent visual style. Same font, same text placement, similar image treatment. Consistency makes a carousel feel intentional rather than thrown together.
• Keep text in the safe area. Platforms draw buttons and captions over the edges of the screen. Leave room.
• End on something. The last slide should resolve the tension of the first, even if it is just one honest sentence.

Choosing images

The images in a slideshow are supporting actors. They set a mood and give the eye something to rest on, while the text carries the message. Good sources:

• Your own screenshots, cropped to the one element that matters.
• Photos of the real situation your app helps with: a desk, a phone in a hand, a messy spreadsheet.
• Stock images chosen for tone rather than literal meaning.
• AI-generated images, when you need something specific that does not exist elsewhere.

In Reachira, every slide has an image; picking one from your media bank, from a character's images or from stock is free, and an AI image for a slide costs credits that are shown before anything is charged. The slideshow format itself uses no AI credits.

How each platform receives a slideshow

Platforms treat image posts differently, so it helps to know what goes where:

Two practical implications. First, keep your slide count inside the carousel limits so the same slideshow works on both TikTok and Instagram without edits. Second, remember that on the video platforms the viewer loses control of the pace, so each slide needs to be readable in the time it is on screen. Shorter text wins there. For the full rules per platform, see TikTok, Reels and Shorts format rules.

Mixing slideshows into a posting plan

Slideshows are strongest as part of a mix, not as the only thing you post. A reasonable pattern for a small team:

• Use slideshows for explaining — problems, tips, before-and-after comparisons, short lists.
• Use text over a clip or green-screen memes for reacting — relatable moments, light humour.
• Use hook-plus-demo videos for showing — the moment your app actually solves the problem.

Rotating formats also keeps an account from looking repetitive, which matters for how platforms treat it. We go into that in What 3 posts per account per day means.

Testing with slideshows

Because they are so cheap to vary, slideshows are the best place to run small experiments:

1. Take one angle and write three different first slides for it.
2. Keep the rest of the slides identical.
3. Publish them on different days, on the same account, at similar times.
4. Compare how far people get through the carousel and whether anyone comments.

When a hook clearly works, reuse it in your other formats. The slideshow did the cheap research for your more expensive videos.

Getting started

If you have never posted a slideshow, start with your app's most common support question. Turn the question into the first slide, the confusion into the second and third, and the answer into the last. That is a real, useful post, and it probably took you less time than reading this article.

You can see slideshows next to every other format on the formats page.