ButterKitvs.Picasso
Two native Apple apps for App Store screenshots. Our design engineer compares 3D rendering, AI translation, automation, pricing, and more.
Quick answer: Both are native Apple apps, but ButterKit is the stronger choice for most developers. It adds real-time 3D mockups, AI-powered translation to all 50 App Store languages, Xcode Simulator capture, MCP automation, and Fastlane integration. ButterKit Pro costs $29/year or a one-time $59, while Picasso Pro starts at $79.99/year or $199.99 lifetime.
What's the quick summary?
Picasso is a native Apple app for designing App Store screenshots with 2D device frames, templates, .xcstrings-based localization, and App Store Connect upload. It also runs on iPhone and iPad with iCloud sync.
ButterKit is a macOS app with real-time 3D devices, Xcode Simulator capture, AI-powered translation across all 50 App Store languages, MCP and Fastlane automation, and direct App Store Connect uploads.
ButterKit Pro is $29/year or $59 one-time vs. Picasso Pro’s $79.99–$99.99/year or $199.99 lifetime.
What are the key takeaways?
- ButterKit has real-time 3D; Picasso uses 2D frames. ButterKit renders photorealistic device mockups in real-time with Metal at up to 120fps. Picasso applies flat 2D device frames to your screenshots, which look clean but lack depth and interactivity.
- Pricing strongly favors ButterKit. ButterKit Pro costs $29/year or a one-time $59 one-time. Picasso Pro runs $79.99–$99.99/year or $199.99 for a lifetime pass.
- Translation takes different approaches. ButterKit translates screenshot text and App Store metadata to all 50 languages using frontier AI models. Picasso requires you to supply your own .xcstrings file and does not translate App Store metadata.
- ButterKit supports automation; Picasso does not. Xcode Simulator capture, Fastlane folder linking, and MCP support for AI agents (Claude Code, Cursor, Codex) are all built into ButterKit. See how
- Picasso runs on iPhone and iPad. Picasso works across macOS, iOS, iPadOS, and visionOS with iCloud sync. ButterKit is macOS only, which is rarely a limitation for Apple developers but worth noting.
Below, I break down what to look for in a screenshot tool, compare both tools feature by feature, and answer the most common questions developers ask when choosing between the two.
What should you look for in a screenshot tool?
Six things we highly recommend in a screenshot tool.
Polished, effective designs
The most important part: it should be easy to create beautiful, effective screenshots that sell your product.
Built-in localization
Auto-translate screenshots and metadata to all 50 App Store languages using frontier AI models while retaining design constraints.
Capture from Xcode Simulator & Fastlane
Should capture right from Xcode Simulator or allow linking an entire folder of screenshots (e.g. fastlane).
3D device mockups
Photorealistic device frames make your app feel real and professional, and allow depth so you can show more context.
Automation & App Store Connect
MCP support and App Store Connect API to upload images and metadata straight to App Store Connect, without manual browser editing.
Developer-friendly pricing
One-time purchase or affordable flat plans. No per-seat subscriptions that grow with your team.
How did I test these tools?
I created real App Store screenshots using both ButterKit and Picasso. I evaluated design quality, device frame variety, 3D rendering capability, localization workflow, export reliability, App Store Connect upload, and total time from raw screenshot to published listing. Pricing was compared as of May 2026.
How does ButterKit compare to Picasso?
|
ButterKit |
Picasso | |
|---|---|---|
| App Store Rating | ||
| Lifetime pricing | $59 one-time | $199.99 |
| Annual pricing | $29/year | $79.99–$99.99/yr |
| Real-time 3D device mockups | ||
| Xcode Simulator capture → | ||
| App Store Connect upload → | ||
| Screenshot localization | ||
| App Store metadata translation | ||
| Automation (Fastlane / MCP) → | ||
| Works offline / no account | ||
| iOS / iPad app | ||
| Template library | ||
| Platform | macOS (native) | macOS, iOS, iPad (native) |
Looking for more options? Browse all comparisons
How do the features compare in detail?
App Store screenshot workflow
ButterKit
ButterKit was built by a design engineer specifically for App Store screenshots and localization. Capture directly from Xcode Simulator, use professional templates with real-time 3D devices, auto-translate caption text to all 50 App Store languages, and batch export or upload directly to App Store Connect. One design change propagates across every language and device size automatically.
Picasso
A native drag-and-drop editor that applies 2D device frames to your screenshots. You take screenshots from Simulator or a real device, drag them into Picasso, pick a template, customize the design, and export. Picasso also uploads directly to App Store Connect (Pro). The editor does feel a bit outdated; and ships on Mac, iPhone, and iPad with iCloud sync.
3D device mockups
ButterKit
Buttery-smooth, real-time 3D rendering powered by Metal at up to 120fps on Apple Silicon. Photorealistic iPhone, iPad, Mac, Apple Watch, and Vision Pro models you can freely rotate, angle, and customize. Interactively, in real-time. Your screenshots are rendered inside the device, not composited on top.
Picasso
Picasso uses 2D device frames applied to your screenshots. It supports 40+ devices (iPhones, iPads, Macs, Apple Watches) and the frames are pixel-accurate. However, the result is flat: you cannot rotate devices, adjust angles, or get the photorealistic depth that real-time 3D rendering provides.
Xcode Simulator integration
ButterKit
Because ButterKit is a native Mac app, it connects directly to Xcode Simulator. Capture screenshots from any running simulator with one click. No manual screenshotting, no file management, no dragging images between apps. Update your code, capture fresh screenshots, and your designs update instantly.
Picasso
No direct Xcode Simulator integration. You take screenshots from the Simulator (or a real device), save them, then drag them into Picasso. Picasso detects the device dimensions automatically and applies the correct frame. The workflow is manual but straightforward once you have the images.
Localization & translation
ButterKit
ButterKit translates screenshot text blocks and App Store Connect metadata (description, what's new, keywords, subtitle) to all 50 App Store languages using frontier AI models. On-device translation (18 languages) is free, no subscription required. Cloud translation (e.g. with Claude, GPT, Gemini, OpenRouter) with customizable creativity is available with Pro. Update the original and every translation updates too.
Picasso
Picasso takes a different approach: you import .xcstrings files from your Xcode project and Picasso generates localized versions of your screenshots. This works well if you already maintain translations in Xcode, but it means you need to handle the translation work yourself (or use Xcode's built-in localization). There is no AI translation and no App Store metadata translation. Also, adding an .xcstrings file is paywalled so it's challenging to get a feel for how it will work for you without paying.
Pricing & ownership model
ButterKit
- Free: Unlimited projects, templates, watermarked exports
- Pro: $59 one-time or $29/year
- One license, up to 5 machines.
Picasso
- Free: Basic editing, device frames, templates, export
- Pro: $199.99 lifetime, $79.99–$99.99/year, or $7.99–$9.99/month
- Also offers Design Package ($9.99) and Localize Package ($19.99) as separate add-ons.
Platform & multi-device support
ButterKit
Native macOS app built with Swift and Metal. Works completely offline, requires no account, and delivers up to 120fps 3D rendering on Apple Silicon. Your data never leaves your machine. The trade-off: macOS only (15.6+), so there is no iPhone or iPad version.
Picasso
Available on macOS 14+, iOS 17+, iPadOS 17+, and visionOS. iCloud sync lets you start a project on your Mac and continue editing on an iPhone or iPad. If you want to tweak screenshots on the go, Picasso has a clear advantage here.
App Store Connect & publishing
ButterKit
Connects directly to the App Store Connect API. Upload all your screenshots and translated app metadata (description, what's new, keywords) without ever opening a browser. Because ButterKit creates the screenshots, it already knows the correct sizes and locales, so there's zero manual file management.
Picasso
Picasso Pro also supports direct upload to App Store Connect. It handles screenshot ordering and display type mapping. However, it does not upload App Store metadata (descriptions, keywords, what's new), so you still need to manage that separately in App Store Connect or another tool.
Which tool is right for you?
Choose ButterKit if…
- You want photorealistic 3D device mockups
- You want AI-powered translation to all 50 App Store languages
- You want to capture directly from Xcode Simulator
- You want Fastlane / MCP automation support
- You want to upload screenshots and metadata to App Store Connect
- You prefer $29/year or a one-time $59 over $199.99
Choose Picasso if…
- You want to edit screenshots on iPhone or iPad
- You need iCloud sync across Apple devices
- You already maintain .xcstrings files and want to import them directly
- You don’t need 3D mockups or AI-powered translation
What's the bottom line?
ButterKit and Picasso are both native Apple apps built specifically for App Store screenshots. They share common ground: device frames, templates, App Store Connect upload, and offline-first operation.
Where they diverge is depth. ButterKit adds real-time 3D rendering, AI-powered translation to all 50 languages, Xcode Simulator capture, Fastlane integration, and MCP automation for AI agents. And it costs a fraction of the price: $59 one-time vs. $199.99 lifetime, or $29/year vs. $79.99+/year.
Picasso’s advantage is multi-device support: it runs on iPhone, iPad, and Mac with iCloud sync.
Frequently asked questions
Common questions about ButterKit and Picasso
Does Picasso support 3D device mockups?
No. Picasso uses 2D device frames that are applied to your screenshots. The frames are pixel-accurate and support 40+ devices, but they are flat. You cannot rotate, tilt, or adjust the viewing angle. ButterKit uses a real-time Metal-based 3D engine (up to 120fps on Apple Silicon) where you can interactively rotate and customize photorealistic device models.
What's the best Picasso alternative?
For Apple developers, ButterKit is the strongest Picasso alternative. It covers everything Picasso does (device frames, templates, App Store Connect upload) and adds real-time 3D mockups, Xcode Simulator capture, AI-powered translation, Fastlane integration, and MCP automation. It also costs significantly less: $29/year or a one-time $59 vs. Picasso’s $79.99+/year or $199.99 lifetime. See all comparisons
Can Picasso translate to all App Store languages?
Not on its own. Picasso supports localization by importing .xcstrings files from your Xcode project. This means you need to handle the translations yourself (or use Xcode’s built-in localization tools) before bringing them into Picasso. ButterKit translates screenshot text and App Store Connect metadata to all 50 App Store languages using frontier AI models, with no external files required.
Does ButterKit work on iPad?
No. ButterKit is a macOS-only app. This is by design: running natively on macOS enables Metal-based 3D rendering, direct Xcode Simulator integration, and Fastlane folder linking that would not be possible on iPad. If you develop for Apple platforms, you already have a Mac, so this is rarely a limitation. Picasso does offer an iPad (and iPhone) app with iCloud sync if you need mobile editing.
Is Picasso free?
Picasso has a free tier that includes basic editing, 2D device frames, templates, and export. Pro features (App Store Connect upload, localization, image additions, gradients and blurs, spanning items) require an in-app purchase starting at $7.99/month, $79.99/year, or $199.99 lifetime. ButterKit also offers a generous free plan with unlimited projects and templates. View ButterKit pricing
Does ButterKit really cost less than Picasso?
Yes. ButterKit Pro is $59 one-time or $29/year. Picasso Pro is $199.99 lifetime or $79.99–$99.99/year. ButterKit also includes more features at every price point: real-time 3D rendering, AI translation, Xcode Simulator capture, Fastlane integration, and MCP automation are all included in Pro.
Can I capture screenshots directly from Xcode Simulator?
ButterKit is the only tool in this comparison that captures directly from the Xcode Simulator (learn more) and can link to a Fastlane screenshots folder. Picasso requires you to take screenshots yourself (from Simulator or a real device) and then drag them into the editor.
Does ButterKit support AI agent automation?
Yes. ButterKit includes a built-in Model Context Protocol (MCP) server that lets AI coding agents like Claude Code, Cursor, and Codex automate screenshot generation, translation, and publishing. You can script entire workflows from capture to App Store Connect upload. Picasso has no equivalent automation support.
Which tool has better App Store reviews?
Both are well-reviewed. ButterKit has a 4.7-star rating on the Mac App Store. Picasso has a 4.3-star rating across the Mac, iPhone, and iPad App Stores (43 ratings as of May 2026). Both are actively maintained and receive regular updates.
Does Picasso support App Store Connect uploads?
Yes. Picasso Pro includes direct upload to App Store Connect for screenshots. It handles display type mapping and ordering. However, unlike ButterKit, Picasso does not upload App Store metadata (app description, what’s new, keywords, subtitle), so you still need to manage those fields manually in App Store Connect.
What are real users saying?
"ButterKit is, by far, the best app for this. It has sped up my workflow 100x."
"I've tried so many screenshot tools and they were all too complex. I understood how to use ButterKit in just 10 seconds."
"My conversion rates have improved substantially with ButterKit."
Looking for more options? Browse all comparisons
Picasso App Screenshot Studio is developed by ASO Ventures LLC and is not affiliated with ButterKit. Features, pricing, and availability may have changed since the page was last updated. Notice a problem? Let us know.