Comparison · 10 min read · Checked August 2026

Screenshot Bro vs AppMockUp Studio

Short answer: AppMockUp Studio is the right pick for a free, one-off set — it runs in the browser, needs no account, and exports PNG or JPG at native device sizes. Screenshot Bro is a native Mac, iPad and iPhone app that starts to pay off when the same listing comes back: a second release, a second language or a second device size, because the project, its locales and the store upload live in one file. Both are free to start; neither imports the other's projects.

Details about AppMockUp Studio were checked in August 2026 on AppMockUp Studio's own site, help center and its January 2025 relaunch post; pricing and features change, so verify there before deciding. If something here is out of date, tell us and we will fix it.

What each tool actually does

AppMockUp Studio

AppMockUp Studio is a browser-based screenshot editor for the App Store and Google Play. It is free, and its homepage repeats "No account required" under every call to action; the same page counts "7+ million screenshots generated" and "400+ reviews". The company behind it is a two-person team. The editor has no paid tier: its January 2025 relaunch post says AppMockUp "has been sustained through the generous individual contributions via Buy me a coffee and PayPal donations" and announces a template store on Buy Me a Coffee selling ready-made screenshot templates. Those templates add designs; they do not unlock features. There is no pricing page, so template prices are only visible in that store.

The editing model is closer to a design tool's components than to a slideshow. A project holds up to 10 Main Screenshots, which are master templates. Each Device Component you add is a row, and the app generates one Instance Screenshot per master for that device, inheriting the design and overridable for that size. The device list in the studio today runs from the iPhone 4s to the iPhone 16 Pro Max, plus iPad (Pro 11" and 12.9", Air, Mini), Pixel phones up to the 4 XL, Galaxy phones up to the S21 Ultra and two Android tablets; frames come in clay or real styles with tint, resize and rotate. Around them sit colour, gradient, image and panoramic backgrounds that re-flow when you add or remove a screenshot, a mesh-gradient generator, a pattern generator, icons, titles and subtitles with decorations, highlights, and an App Store / Google Play preview. Export is PNG or JPG per screenshot or all at once. The project lives in browser memory; you save it as a .mockup file on your computer and load it later, and a refresh clears anything unsaved. We found no iPhone 17, Mac or Apple Watch frames, and its FAQ says the tool is designed for all app types except games.

Screenshot Bro

Screenshot Bro is a native Mac, iPad and iPhone app (macOS 15.0+, iOS/iPadOS 18.0+, App Store only) built around the assumption that you will make this listing more than once. A project is a plain-JSON file with a public schema; it holds one continuous canvas of rows (device sizes) and templates (screenshots), 81 language presets with per-locale overrides and on-device auto-translation, and exports a folder per locale and row at exact store pixel sizes. App Store Connect and Google Play upload are built in and included in the free tier, which never expires: 1 project, 3 rows, 5 templates per row, every frame, shape and locale, no watermark. Pro lifts the project, row and template limits and nothing else.

Side-by-side

What AppMockUp Studio does well

It is easy to underrate a free tool, so the credit here is specific. AppMockUp Studio is not a crippled trial of something bigger — the whole editor is the product, and several of its ideas are better than what many paid tools offer.

• Zero friction. Open the page and start. No account, no payment, no install, no licence to keep track of. For a single set that is a real advantage, not a marketing line.
• The master/instance model. Designing once on a Main Screenshot and getting a per-device Instance Screenshot that inherits the design but can be overridden is a genuinely good answer to the multi-size problem, and it is the same concept designers already know from Figma components.
• Panoramic backgrounds and generators. Backgrounds that span the set and re-flow when you add or remove a screenshot, plus mesh-gradient and pattern generators, are polish features most free tools skip.
• iOS and Android together, with a store preview. Named Galaxy and Pixel frames sit alongside iPhones in the same project, and you can preview how the set looks on the App Store and Google Play before exporting.

Where Screenshot Bro is different

• The project is a file from the first minute. Not a tab's memory you must remember to save — a JSON file on disk with a public schema, optionally synced through iCloud to the same app on iPad and iPhone.
• Language is a first-class dimension. AppMockUp Studio's instances vary by device; Screenshot Bro's locales vary by language inside the same project, with per-locale text, style, image and position overrides, on-device auto-translation and progress tracking across 81 presets.
• Export and upload are the last mile, not your job. Exports land as one folder per locale and row with zero-padded filenames, and the app uploads them to App Store Connect or Google Play itself, syncing only what changed.
• A different frame catalogue. Screenshot Bro has the iPhone 17 family, iPhone Air, MacBook, iMac and Apple Watch Ultra 3 frames and abstract Android frames that flex to any aspect ratio; it does not have named Galaxy models or iPhones older than the 17.

When to pick AppMockUp Studio

• You are launching one app in one language and want the screenshots done today without installing anything — the common case, and the one it is built for.
• You work on Windows, Linux or ChromeOS.
• You want no account, no licence and no in-app purchase, now or later.
• You need a specific Samsung Galaxy or Pixel frame, or an older iPhone model, rather than an abstract Android phone.
• Your set is small and you are content to rebuild it by hand at the next major redesign.

When to pick Screenshot Bro

• The same listing comes back every release: you re-drop the new screenshots and the layout, copy, locales and upload settings are already there.
• You ship in two or more languages and want the translations, their progress and their exports managed in one place.
• You ship several sizes and several languages — 6.9", 6.5" and iPad times five locales is 90 files that should come out as a folder tree, not as downloads.
• You would rather upload to App Store Connect and Google Play from the app than download, sort and drag files into each console.
• You need current frames today: iPhone 17 / 17 Pro / Air, MacBook, iMac or Apple Watch Ultra 3.
• You want the project on disk or in iCloud, and the option to edit it on an iPad or iPhone.

Switching from AppMockUp Studio to Screenshot Bro

Neither tool imports the other's project files. Screenshot Bro cannot open a .mockup file, and AppMockUp Studio cannot open Screenshot Bro's JSON. A switch is a rebuild, but most of the work is not the layout.

What carries over directly: the raw screenshots you dropped into AppMockUp Studio (keep the originals rather than the framed exports), your headline and subtitle copy, any font files you own, brand colours as hex values, and the list of devices you were targeting. What is rebuilt: the layout itself — frame position, background, text placement.

A realistic estimate for a 6-template × 3-locale set: 30–45 minutes to lay out the first row from a starter template, a few minutes per extra row because screenshots batch-import by pixel size and the layout scales, then roughly 10–15 minutes per language to run auto-translate or paste existing translations and check line breaks. Budget 1.5 to 2 hours including the one-time App Store Connect key setup, and less if you already have the translations.

Going the other way is the same job in reverse: take the raw screenshots and copy into AppMockUp Studio and rebuild the masters, one language per project.

Frequently confused points

"Isn't AppMockUp Studio limited because it's free?"

No, and this is the misconception worth correcting. The free editor is the whole editor: every device frame, background tool, generator and export option is available without paying, exports are at native device resolution, and nothing on its site mentions a watermark. The only paid items are the ready-made templates in its Buy Me a Coffee store, which are designs rather than features. If a free one-off set is what you need, you are not settling.

"Does AppMockUp Studio handle multiple device sizes?"

Yes — that is exactly what its Main Screenshot / Instance Screenshot model is for. Add a device and every master gets an instance at that device's native size, inheriting the design with per-instance overrides. What it does not model is language: the instances vary by device, so each extra language means a duplicated set or a second project, and the exports are not grouped by locale.

"Will my AppMockUp Studio project disappear?"

Only if you do not save it. Its FAQ says project data lives in browser memory and that a refresh clears unsaved work, but you can save a .mockup file to your computer at any time and load it back later. Treat it like any unsaved document: save before you close the tab, and keep the file with your repo.

"Is there a web version of Screenshot Bro?"

No. Screenshot Bro is a native app for Mac, iPad and iPhone from the App Store, with no web, Windows or Linux build. If your machine is not a Mac or an iPad, AppMockUp Studio or another browser tool is the answer, not this one.

The honest bottom line

"Which is better" is the wrong question here, because the two tools optimise for different moments. For a free one-off set — one app, one language, screenshots needed today — use AppMockUp Studio. It is free, it needs no account, it exports at store sizes, and nothing in Screenshot Bro would make that first set meaningfully better. Screenshot Bro starts to pay off at the second release, the second language or the second device size: the point where a project file you re-open, locales inside the project and a built-in upload save more time than they cost to set up.

Do not buy Screenshot Bro if you work on Windows or Linux, if your app ships in one language and one size and rarely changes, if you need specific Samsung frames or older iPhone models, or if you need video or App Preview output — none of those is something this app does. If you are on a Mac and the listing keeps coming back across sizes and languages, the free tier is enough to find out whether the workflow fits before paying anything.