App Store screenshot tooling · Native Mac · One-time
Looking for a
Previewed alternative?
Previewed is a capable web-based asset studio — device mockups, multi-language screenshots, templates, all in the browser. Mockly is the same App Store screenshot job in a native Mac app: real 3D Metal-rendered frames, AI translation calling your own API key, direct upload to App Store Connect. Less than a typical month of a subscription, paid once.
How does Mockly compare to Previewed?
Native Mac app vs web studio. Both make great screenshots; how they get there differs.
Where compute happens
Mockly: Locally on your Mac — Metal-rendered 3D geometry, GPU-accelerated.
Previewed: In the browser, processed through the web pipeline.
Previewed: In the browser, processed through the web pipeline.
Pricing
Mockly: $12.99, paid once, Family Sharing.
Previewed: Free tier plus paid subscription plans.
Previewed: Free tier plus paid subscription plans.
Translation pipeline
Mockly: Calls your own AI translation API key from your Mac. Mockly never sees the text.
Previewed: Translation runs as part of its hosted service.
Previewed: Translation runs as part of its hosted service.
Scope
Mockly: Focused on App Store screenshots, file-based projects, ASC upload.
Previewed: Broader web toolkit — mockups, social assets, animations.
Previewed: Broader web toolkit — mockups, social assets, animations.
Mockly vs Previewed — feature by feature
At-a-glance comparison for developers choosing a screenshot workflow.
| Feature | Mockly | Previewed |
|---|---|---|
| Platform | Native Mac | Web (browser) |
| Rendering | Local 3D Metal | Server-side |
| Translation | Your own API key | Hosted pipeline |
| App Store Connect upload | Direct from app | Export then upload |
| Pre-release privacy | On-device, no upload | Processed in browser/cloud |
| Wider asset toolkit | Screenshot-focused | Mockups, social, animations |
| Pricing | $12.99 once | Free tier + subscription |
When to pick Mockly
- You're an indie developer who'd rather pay once than carry a subscription
- You handle pre-release or NDA work and don't want screenshots routed through a web service
- You want deterministic local Metal rendering and direct App Store Connect upload
- You want AI translation that uses your own API key, with the text never touching the vendor
When to keep Previewed instead
- You want a broad web toolkit beyond App Store screenshots — social assets, animations, templates
- You work across non-Mac devices and need browser access
- You collaborate in the browser and prefer cloud-based projects
FAQ
What is the best Previewed alternative?
Mockly — a native Mac app with a one-time price. Same device-framed multi-language screenshots, rendered locally with 3D Metal frames, AI translation via your own API key, ASC upload, $12.99 once.
How does Mockly's pricing compare to Previewed?
$12.99 once with Family Sharing, vs Previewed's free tier plus subscription plans. Over a year the one-time purchase is dramatically cheaper and never changes.
Does Mockly render on-device unlike a web tool?
Yes — entirely on your Mac with Metal 3D rendering, nothing uploaded. Previewed is browser-based. For pre-release/NDA work, on-device is the safer default.
Does Mockly support the same device sizes as Previewed?
Yes — every size App Store Connect requires, including visionOS and Apple Watch. One project produces every required size.
Does Previewed do things Mockly doesn't?
Yes — a broad web toolkit (social mockups, animations, templates) and cross-platform browser access. Mockly is a focused single-user Mac app for App Store screenshots.
Does Mockly handle translation like Previewed?
Yes, with a privacy difference: Mockly calls your own AI translation API key from your Mac, so it never sees the text. Previewed translates in its hosted pipeline.
Ready?
Try Mockly today.
Native Mac. Metal rendering. Your own API key for AI translation. $12.99, once.