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Picasso - App Store Screenshot Tool vs UI Generator

Focused on App Store screenshots with conversion-focused templates, not general device mockups.

Short answer: Pick Picasso - App Store Screenshot Tool if you want quick, localized App Store screenshots; pick UI Generator if you want instant device mockups for presentations. Both are free.

Which to pick

Pick Picasso - App Store Screenshot Tool if you want…

  • Quick, localized App Store screenshots
  • App Store product page screenshots
  • Open-source code (mpdifran/picasso-roadmap on GitHub)
  • Integrations with Fastlane or App Store Connect (on Picasso - App Store Screenshot Tool's list, not UI Generator's)

Pick UI Generator if you want…

  • Instant device mockups for presentations
  • Integrations with iPhone 17 Pro, iPhone 17 Pro Max or iPhone Air (on UI Generator's list, not Picasso - App Store Screenshot Tool's)

Side by side

What it is
Picasso - App Store Screenshot Tool:Picasso generates App Store screenshots with device frames, localization and bulk import for iOS, iPadOS and macOS.
UI Generator:UI Generator creates free, one-click mockup PNGs of app screens on iPhone 17 or MacBook devices.
Best for
Picasso - App Store Screenshot Tool:Quick, localized App Store screenshots
UI Generator:Instant device mockups for presentations
Who it’s for
Picasso - App Store Screenshot Tool:iOS/macOS developers who need fast, polished App Store screenshots.
UI Generator:Designers, marketers and product teams needing quick UI screenshots.
Pricing
Picasso - App Store Screenshot Tool:Free
UI Generator:Free
Starting price
Picasso - App Store Screenshot Tool:Free
UI Generator:Free
Free plan or trial
Picasso - App Store Screenshot Tool:Free to use
UI Generator:Free to use
Open source
Picasso - App Store Screenshot Tool:Yes
UI Generator:—
Works with
Picasso - App Store Screenshot Tool:Fastlane, App Store Connect
UI Generator:iPhone 17 Pro, iPhone 17 Pro Max, iPhone Air, MacBook Pro 14″, MacBook Pro 16″, MacBook Air 13″, Browser window

Picasso - App Store Screenshot Tool features

  • Automatic device frames. Detects screenshot size and applies the correct Apple device frame.
  • Bulk import from Fastlane. Import many screenshots at once using Fastlane output.
  • Localization support. Generate screenshots in any language from an .xcstrings file.
  • Direct upload to App Store Connect. Uploads screenshots per locale and display type automatically.
  • Template library. Start with beautiful pre-made templates for all Apple platforms.
  • Multi-device editing. Span items across multiple screenshots and export organized files.

UI Generator features

  • Device selection. Choose from iPhone 17 Pro, iPhone Air, MacBook Pro 14″/16″, MacBook Air 13″ or a browser frame.
  • Angle & background control. Pick straight, left, right, from-above or floating angles and add shadows or transparent backgrounds.
  • Custom screenshot upload. Drag-and-drop or paste your own screen image; processing stays in the browser.
  • Multiple export formats. Download high-resolution PNG, JPG or WebP with optional transparent background.
  • Preset screen types. Select from 18 interface categories such as dashboards, finance apps, chats, e-commerce, etc.
  • No sign-up required. All features are free and usable without creating an account.

Picasso - App Store Screenshot Tool vs UI Generator FAQ

What is the difference between Picasso - App Store Screenshot Tool and UI Generator?+

Picasso - App Store Screenshot Tool: Focused on App Store screenshots with conversion-focused templates, not general device mockups.

Should I use Picasso - App Store Screenshot Tool or UI Generator?+

Pick Picasso - App Store Screenshot Tool if you want quick, localized App Store screenshots, App Store product page screenshots or open-source code (mpdifran/picasso-roadmap on GitHub). Pick UI Generator if you want instant device mockups for presentations or integrations with iPhone 17 Pro, iPhone 17 Pro Max or iPhone Air (on UI Generator's list, not Picasso - App Store Screenshot Tool's).

Is Picasso - App Store Screenshot Tool or UI Generator free?+

Yes, both are free.

Is Picasso - App Store Screenshot Tool or UI Generator open source?+

Picasso - App Store Screenshot Tool is open source (mpdifran/picasso-roadmap on GitHub). DevHunt has no public source repository on record for UI Generator.

Do Picasso - App Store Screenshot Tool and UI Generator integrate with the same tools?+

Their integration lists don't overlap: Picasso - App Store Screenshot Tool lists Fastlane and App Store Connect; UI Generator lists iPhone 17 Pro, iPhone 17 Pro Max, iPhone Air, MacBook Pro 14″ and 3 more.

On DevHunt

Picasso - App Store Screenshot Tool

29 upvotes · Launched on DevHunt on Feb 27, 2024

UI Generator

1 upvote · Launching on DevHunt on Nov 10, 2026

Based on each tool's website and DevHunt data. Details may change; check the official sites.