How well do your screenshots sell your app?

Paste your App Store or Google Play link. We read every screenshot the way a browsing user would — captions, thumbnail readability, first impression, native sizes, video — and grade the listing in about 20 seconds.

Free, no sign-up. Works on any public listing — including your competitor's.

No link handy? Try:
What we check

Seven checks, one honest grade

The same things a browsing user's eye checks in the two seconds before they scroll past — plus the technical details the stores care about.

Marketing layer on every screenshot

Raw UI screenshots are the most common conversion killer — browsing users read headlines, not pixels. Every image is classified as designed marketing or bare UI.

The first two screenshots

Search results show roughly two screenshots. If they don't tell the story on their own, the rest of the set never gets seen.

Thumbnail readability

In search, screenshots render around 150px wide. We check whether your captions survive that — most don't.

Native asset resolution

Listings still shipping 6.5″-era assets get scaled up on today's 6.9″ displays and look soft. We read the actual uploaded pixel sizes.

App preview video

Published tests put preview videos at +16–35% install conversion. We check whether the listing has one.

Localization signals

If your app speaks 12 languages but your screenshots speak one, you're leaving 2–3× installs on the table in non-English storefronts.

FAQ

Listing grader questions

Is the listing grader free?

Yes — completely free, no account needed. It runs on the same store-import and AI analysis engine as the AppStills editor.

Which stores does it support?

The Apple App Store and Google Play. Paste any public listing URL — the country storefront is read from the link.

What does the grade actually measure?

Seven checks: marketing-layer coverage, first-two-screenshot strength, thumbnail readability, set size, native asset resolution, app preview video, and localization signals. Each check shows its points, so the grade is fully transparent.

Can I grade a competitor's app?

Yes — any public listing works. Grading the category leader before your own redesign is exactly what this is for.

Do you store my screenshots?

We read the public listing directly from the store and cache the analysis for a week so your result link loads instantly. You never upload anything.

How do I fix a low grade?

The result page shows your listing rebuilt in AppStills templates — captions, brand colors and layout drafted by AI. Open it in the editor, adjust, and export every required store size in one ZIP. Free to start.

Your listing, rebuilt in minutes.

AppStills imports your store listing, drafts captions and colors with AI, and exports every required App Store and Google Play size — plus 50 languages — in one ZIP. Free to start, no watermark.