How to Design App Store Screenshots Without a Designer

A professional App Store screenshot set from a freelance designer costs between $500 and $2,000. Studio rates go higher. And that is before localization — if you want versions in Japanese, German, French, and four other markets, you are looking at the same process repeated seven times, or a significant additional budget.

The good news: you do not need a designer to produce App Store screenshots that convert. What you need is a clear process, an understanding of what makes screenshots work, and the right tool. This guide covers all three.

What non-designers consistently get wrong

Before covering the process, it helps to know what to avoid. The design mistakes non-designers make most often are not about aesthetics — they are about complexity.

• Too many fonts. One font family, two weights maximum. Every additional typeface adds visual noise without adding value.
• Too many colors. Three colors is almost always enough: a background, a primary text color, and one accent color (usually your brand color). Four or more starts to look amateur.
• Too many elements per screen. A caption, a device mockup, a background. That is the whole template. Every decorative element you add must justify its presence.
• Centered everything. Left-aligned text is easier to read and looks more intentional than everything centered. Reserve center alignment for very short captions.

The single most reliable design improvement non-designers can make is subtraction. Remove one element from each screenshot. Then consider removing one more. What is left is usually better.

Step 1: Capture your five best UI moments

Before opening any design tool, spend time in your app and screenshot the five moments that show it at its best. These are not necessarily the first screens a user sees — they are the screens that would make someone say "I wish I had that" or "I need this."

On iPhone: Settings → Developer → and enable screenshot tools, or use a screen recording and take clean screenshots from the recording. What you want: the app in its "after" state — after the user has done something useful with it. A task manager with a satisfying checklist. A finance app with a clear summary. A fitness app after a completed workout. Show the payoff, not the setup.

You do not need to use all five screenshots in your final set — but starting with more options lets you choose the ones that tell the strongest story. Rank them: which one shows the most compelling value? That is your first screenshot.

Step 2: Write your captions first, then design

Most people open a design tool and start placing elements. This is backwards. The caption is the most important decision on each screenshot — the design exists to support it, not the other way around.

Write a headline for each of your five screenshots before you open any tool. Three to five words. Benefit-first. Test yourself: if you removed the UI screenshot entirely and only showed the caption, would the user still understand what they get from this app?

• Screenshot 1 (hero): your core value proposition in 3–5 words.
• Screenshot 2: the most compelling supporting feature as a benefit.
• Screenshot 3: something that removes a common objection ("No account required", "Works offline", "Cancel any time").
• Screenshot 4: depth — a more advanced capability for users who are sold and want to know more.
• Screenshot 5: a download CTA or social proof statement.

With these five captions written, you know what each screenshot needs to communicate before you design anything. This prevents the common failure mode of designing beautiful screenshots that have nothing clear to say.

Step 3: Pick a three-color palette

Your palette: background color, headline text color, and one accent color. That is all you need.

The easiest starting point: your app's primary brand color as the accent, pure white (#FFFFFF) or near-black (#0D0D14) as the background depending on whether you want a light or dark treatment, and the opposite as your primary text color. This is a palette that is almost impossible to get wrong.

If your app's brand color is too saturated to use as a background directly — vivid red, bright yellow — use a very dark or desaturated version of it as the background, and the vivid version only for accents (underlines, badge elements, decorative shapes). Oversaturated backgrounds compete with text and device mockups for attention.

Step 4: Pick one layout and use it on every screen

Screenshot sets that convert well are visually consistent. The easiest way to achieve consistency without design expertise is to pick one layout template and apply it to every screen with only the content changing.

Two layouts that are almost universally reliable:

• Caption top, phone mockup bottom: The headline occupies the top third of the canvas. The phone mockup sits in the lower two-thirds, extending slightly off the bottom edge. Clean, readable, works in search results.
• Phone mockup large and centered, caption above or below: The phone fills the canvas. Caption text is placed above the top of the device or below its bottom, so it does not compete with the UI. Good for apps where the interface is visually strong.

Do not vary the layout between screens. If screenshot one has the caption at top, screenshots two through five should also have the caption at top. The only thing that should change between screens is the content — the UI screenshot inside the mockup and the caption text.

Step 5: Check it at thumbnail size before you publish

Before uploading to App Store Connect, export your first screenshot and shrink it to 130 pixels wide. Open it on your phone's Photos app and hold the phone at arm's length. If you can read the caption and understand the image, it passes. If it looks like a blur, the caption needs to be larger, shorter, or both.

This is the one quality check that matters most and that most developers skip entirely. Search result impressions are where you lose most users — not on the product page. A screenshot that looks great at full resolution but is unreadable at thumbnail size is doing half its job.

Which tool to use

Figma is the professional standard but has a steep learning curve for non-designers. Building a correct App Store canvas (1290×2796 for iPhone 6.9"), managing device frames as assets, and exporting at the right resolution correctly all require Figma knowledge that takes time to build.

Canva has App Store screenshot templates but limited control over device frames, no built-in localization, and export dimensions that require manual verification. It works for simple designs but quickly becomes limiting.

Boom Screens is built specifically for App Store screenshots: the canvas is pre-configured at the correct dimensions, device mockups are built in, and when your design is ready you can localize the captions into multiple languages automatically and export a ZIP with native-resolution PNGs for every device size organized exactly as App Store Connect expects.

The practical workflow: design your screenshot set once in Boom Screens, run the thumbnail test, make caption and layout adjustments, then export. Localization adds one click. The whole process for a first set, including iterations, typically runs two to four hours — compared to the weeks of back-and-forth a typical designer engagement involves.

The one rule: simple beats clever

Non-designers often feel that a design needs to look complex or elaborate to look professional. The opposite is true. The most converting App Store screenshot sets are consistently simpler than the ones that were labored over.

Three words at 150px. A device mockup. A clean background. That is a professional App Store screenshot. The craft is in the copy — choosing the three words that make the strongest argument for why someone should download the app. Design frames the argument. The argument is what converts.