AppStills vs AppMockUp Studio
AppStills and AppMockUp Studio both build App Store and Google Play screenshots in the browser, but they aim at different users. AppMockUp Studio is a completely free, no-account tool for 2D screenshot layouts, backed by a large template library and a long track record. AppStills is a sign-in freemium tool built around a real-time 3D editor with AI store-import, promo & app-preview video export, and 50-language AI translation — most of which sit behind a $5.90/month Pro plan. In the matrix below, the AppStills column is drawn only from its own code, and the AppMockUp column only from what AppMockUp's live site stated on 2026-07-21 (its homepage and /help/faq/); anything their site does not state is marked as such rather than guessed.
Feature comparison
| Feature | AppStills | AppMockUp Studio |
|---|---|---|
| 3D device posing | Yes — real-time 3D (react-three-fiber): full 6-axis per-object transform (posX/Y/Z + rotX/Y/Z) plus scale, perspective or orthographic camera, 4 render styles (realistic/clay/toon/linear). Available on the free tier. | No — 2D resize / rotate / position of flat device frames (real, solid-color clay, and color styles + tint). No 3D or perspective camera stated (homepage, 2026-07-21). |
| Store-listing import | Yes — imports an existing App Store / Google Play listing (name, screenshots, description) and derives colours + layout via Claude vision. Sign-in required, not Pro-gated. | No — no listing-import feature stated; screenshots are added manually (homepage/FAQ, 2026-07-21). |
| AI captions | Yes — generates a headline + optional subtitle per screen from the app's own store text at import (Claude Haiku). Sign-in required, not Pro-gated. | No — no AI features mentioned on AppMockUp's homepage or FAQ/help center (2026-07-21). |
| Localization | 50 App Store Connect languages, AI batch translation of the whole caption set, plus per-language screenshot overrides & position nudges. Pro. | Manual — 'all languages and scripts' with 'full support for right-to-left languages and special characters,' but no AI/auto translation of a caption set stated (FAQ, 2026-07-21). |
| Promo & app-preview video | Yes — promo videos from 15 ready-made scripts (16:9, 9:16, 1:1; H.264 MP4 at 720p/1080p, 24/30/60 fps) plus Apple-approved 15–30s app previews (30fps CFR, exact App Store Connect sizes; iPhone & iPad, not Watch), all rendered in-browser from the live 3D scene. Building & previewing is free; MP4 export is Pro. | No — still-image screenshot designer; no app-preview / promo video export mentioned (2026-07-21). |
| All-sizes one-ZIP export | Yes — every store size × every chosen language streamed into one ZIP with per-language and per-size folders, at exact store pixels and flattened (alpha-free). Pro. | Partial — 'Automatically generates appropriate sizes for all required devices,' but no single one-click ZIP bundle stated (FAQ, 2026-07-21). |
| Free tier | Yes — full 3D editor, all effects, store import + AI captions. 1 project; one size and one language per export run. Sign-in required. | Yes — 'No account or registration is required'; free online tool with no stated project/export limits (homepage/FAQ, 2026-07-21). |
| Watermark-free free export | Yes — free exports are watermark-free; the 'Made with AppStills.com' mark was removed, so both tiers export clean. | Not stated — no watermark mentioned either way, and no paid tier exists to remove one (marked unknown; homepage/FAQ, 2026-07-21). |
| Pricing | Free plan + Pro at $5.90/month or $49.90/year (read live from Stripe; the live pricing page shows 'Save 30%' on yearly), as of 2026-07-21. | Free — no paid, Premium, or Pro plan and no price listed on its homepage or FAQ (2026-07-21). |
| Platform | Web only (Next.js, in-browser). Sign-in required; no native app, no advertised offline mode. | Web only — runs in-browser at studio.app-mockup.com; no install and no account required; no native app advertised (2026-07-21). |
Comparison last verified 2026-07-21. AppMockUp Studio’s pricing and features are taken from app-mockup.com and change over time — check their site for current details. AppStills details reflect the current product.
Where each tool is stronger
Where AppStills is stronger
- Genuine real-time 3D editor (react-three-fiber): full 6-axis per-object transforms (posX/Y/Z + rotX/Y/Z) plus scale, a perspective OR orthographic camera, and four render styles (realistic/clay/toon/linear) — versus AppMockUp's flat 2D device frames.
- AI at import: pulls an existing App Store / Google Play listing (name, screenshots, description) with Claude-vision colours + layout, and auto-generates a headline + optional subtitle per screen from the app's own store text — AppMockUp has neither listing import nor any AI.
- Video export: promo MP4s from 15 scripts (16:9, 9:16, 1:1, up to 1080p/60 fps) and Apple-compliant app previews, encoded in-browser — AppMockUp is still-images only.
- Localization depth: exactly 50 App Store Connect locales with AI batch translation of the whole caption set, plus per-language screenshot swaps and position nudges — beyond AppMockUp's manual, translate-it-yourself localization.
- Multi-size, multi-language one-ZIP export that is pixel-exact and flattened alpha-free, with per-language and per-size folders — versus AppMockUp's 'Automatically generates appropriate sizes' with no stated single-ZIP bundle.
- Richer scene toolkit: directional soft fades & grainy dither dissolve, glass-floor reflection, background vignette & blur, gradient-capable borders, panorama backgrounds spanning frames, a built-in mesh-gradient background generator, plus rating/testimonial and award-badge objects, share links, and public showcases.
Where AppMockUp Studio is stronger
- Completely free with zero friction — 'No account or registration is required,' no sign-up, and no install; AppStills redirects you to sign in before the editor loads at all.
- No paid tier to work around: every feature AppMockUp offers is available at $0, whereas AppStills gates batch ZIP, MP4 video export, custom canvas, and AI translation behind Pro ($5.90/month).
- Established template library ('a template for every type of app') and a cited track record — '7+ Million screenshots generated' and '400+ Reviews.'
- Broad manual localization at no cost: 'all languages and scripts' with 'full support for right-to-left languages and special characters.'
When AppMockUp Studio is the better choice
Choose AppMockUp Studio if you want a genuinely free, no-account, no-install tool for straightforward 2D screenshot layouts and would rather not sign in or pay a subscription. It is the better pick when you only need a handful of flat, templated screenshots, when you want to test a tool with zero commitment, or when your must-haves (3D perspective posing, AI store-import and captions, promo & app-preview video, automated caption translation, batch multi-size export) are all things you can do without — its free-forever model and broad template library then win outright. If you do need those advanced or AI-driven capabilities, or multi-size/multi-language output, AppStills' Pro tier is what covers them.
Verdict
Both are browser-based screenshot tools, but they serve different needs. AppMockUp Studio wins on cost and friction: it is fully free, needs no account or install, and ships a large template library with solid free background and localization tooling — ideal for simple, flat 2D screenshot sets. AppStills wins on capability: a real-time 3D editor, AI listing-import with auto-captions, promo & app-preview video (MP4), 50-language AI translation, and pixel-exact multi-size/multi-language ZIP export — but its batch, video, and translation features require a $5.90/month Pro plan and a sign-in. Pick AppMockUp for free, no-commitment simplicity; pick AppStills when 3D, AI, video, or pixel-exact multi-store output justify a subscription.
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Design App Store and Google Play screenshots in a real 3D editor — import your listing, add AI captions, and export every size. Free to start, no credit card.