ButterKit is the closest thing Screenshot Studio has to a twin. It is a native Mac app, it keeps your work on your Mac, it uploads to App Store Connect, it has an MCP server for coding agents, and it sells a one-time Pro license. If you are looking for a ButterKit alternative, the question is not which tool is a "real" Mac app. Both are. It is about the details: how translation works, which platforms you ship on, which macOS you run, and what you want your screenshots to look like.
This post compares the two honestly, including where ButterKit is the better pick.
What ButterKit Does Well #
- 3D device mockups. ButterKit renders photorealistic device models in real time with Metal and RealityKit, and you can turn them to any angle. If your listing style is dramatic, tilted hardware, this is its signature feature.
- Capture from the simulator. It can pull screenshots straight from the Xcode Simulator or a linked fastlane folder.
- Templates and a community. A template marketplace, panoramic designs, and an active subreddit and Discord.
- A visible free tier. Every feature works for free; exports carry a watermark until you buy Pro.
- Lifetime pricing. Pro is a one-time purchase ($99 on its pricing page when we checked), with a $10/month or $39/year Supporter subscription as an alternative.
Where Screenshot Studio Is Different #
Translation without your own API key #
ButterKit translates on-device into about 20 languages for free. To reach all 50 App Store languages, its docs have you add your own OpenAI, Gemini, Claude or OpenRouter API key, which means a second account and a separate bill. Screenshot Studio's AI translation is built in: add a language, and the captions are translated with no key to set up.
macOS 14, and iPhone and iPad too #
ButterKit requires macOS 26. Screenshot Studio runs on macOS 14 or later, so it works on Macs that haven't moved to the newest system. It also has an iOS and iPadOS app, so you can review or adjust a set away from your desk.
Apple TV and Android in the same project #
ButterKit covers iPhone, iPad, Mac, Apple Watch and Vision Pro, with limited Android presets. Screenshot Studio exports iPhone, iPad, Mac, Apple Watch, Apple TV and Apple Vision Pro, plus Android phones, from one design. If you ship a tvOS app, or the same app on Google Play, those sizes come from the same project (see the current size requirements).
Flat, readable layouts first #
ButterKit is built around 3D hardware. Screenshot Studio is built around templates that put the caption and the interface first, with a magnifier to call out detail. Neither is better in general. It depends on whether your listing sells the device or the screen.
Side by Side #
| ButterKit | Screenshot Studio | |
|---|---|---|
| Platform | Native Mac app (macOS 26+) | Native Mac app (macOS 14+), plus iPhone and iPad |
| Projects | Local | Local documents |
| Apple platforms | iPhone, iPad, Mac, Apple Watch, Vision Pro | iPhone, iPad, Mac, Apple Watch, Apple TV, Vision Pro |
| Android | Limited presets | Android phone sizes |
| Translation | ~20 languages on-device; 50 with your own AI API key | Built-in AI translation, no API key |
| App Store Connect upload | Yes | Yes |
| Coding agents (MCP) | Yes | Yes |
| Device style | Photorealistic 3D mockups | Flat templates, device frames, magnifier |
| Pricing | Free with watermark; one-time Pro or Supporter subscription | Free to design; Pro subscription or lifetime unlock to export |
(Plans change; check ButterKit's pricing page for current prices.)
Which Should You Pick? #
Choose ButterKit if 3D device mockups are the look you want, you are already on macOS 26, and you are happy to bring your own AI key for the long tail of languages.
Choose Screenshot Studio if you want translation into every App Store language without a separate AI account, you ship on Apple TV or Android, you are on macOS 14 or 15, or you want to work on an iPad as well.
Since both offer a free way in, the fairest test is to build the same set in each. Download Screenshot Studio, import the same captures, add two languages, and compare the results. For more options, see every comparison on one page.