Image 1 — Updated: App Store Connect iOS Screenshot Cheat Sheet
Image 2 — Updated: App Store Connect iOS Screenshot Cheat Sheet

Updated: App Store Connect iOS Screenshot Cheat Sheet

New screenshot size requirements in App Store Connect this week. I've received a few messages asking about these and figured it would be helpful to share what I've learned so far!

Tl;dr

  • The new iOS required size is iPhone 6.3" with Dynamic Island (medium display)
  • iPhone Duo screenshots are technically optional until April 2027, according to ASC

ButterKit 3.0+ now defaults to the required iOS ASC sizes and will ask you if you want to automatically upgrade to the new size when you open a legacy project.

Source: App Store Connect announcement

u/zach-builds — 5 days ago

Releasing ButterKit 3: new sizes for App Store Connect, iPhone Duo, improved UI and much more

Thanks to all who have helped with testing in the last few days on Reddit, Discord and via email. You may have noticed App Store Connect added new sizes for iOS apps this week, and ButterKit 3 now supports them! Rolling out now, just hit "Check for updates" from the app.

Download latest ButterKit for macOS

Some 3.0 highlights:

  • New App Store Connect iOS size support: new iOS projects default to the updated size, and opening older iOS screenshot files will ask if you want to migrate to the new size auto-magically. Legacy versions remain available.
  • New App Store artwork: Create and export Header, Search Results, shared artwork for both placements, and iPhone Duo screenshots. Templates coming soon. Thanks u/Lemon8or88
  • Improved user experience: faster and more organized, with a dedicated spot for app metadata and helpful sync tools (e.g. you can now fetch individual sections from App Store Connect). You can now freely edit 3D devices right from the canvas instead of relying on the Inspector.
  • Improved keyboard navigation: easily move between artboards and selected localizations with your keyboard arrowkeys (thanks u/habitoti )
  • Fixes an issue where opening a project with linked screenshots could create unnecessary changes in version control (new UUIDs), even when the images were unchanged. ButterKit now checks whether linked screenshots have changed before replacing them, preserving existing image IDs and avoiding unnecessary version control changes when opening a project. (thanks markb!)
  • Fixes a bug where opening the app on some screen resolutions could crash (thanks u/boulderdash-
  • Added more MCP tooling, UI tweaks, and some more butter
  • More improvements rolling out shortly. If you notice any issues please DM me!

- Zach

u/zach-builds — 7 days ago

Weekly feedback: what are you working on?

Looking for feedback on your app, screenshots, App Store page, website etc? Share your project here.

Please note automated / bot posts will be removed.

reddit.com
u/zach-builds — 15 days ago

Coming soon: iPhone Duo + iPhone 18 Pro + Notch toggle and more

The video above was created with ButterKit Motion (Beta)

Hey all,

New in ButterKit v2.5:

  • New 3D editable iPhone Duo (with editable hinge) and iPhone 18 Pro
  • Updated realistic device materials
  • New control to toggle the camera notch on/off (highly requested!)
  • Support for the new App Store Connect Product Page Headers
  • UX improvements and much more!

Rolling out shortly. What are you working on? What can ButterKit improve? Let me know in the comments.

- Zach

u/zach-builds — 20 days ago

v2.4 is out: drag to rearrange artboards, new Quick Add button, upload fixes

The video above was created with ButterKit Motion (Beta)

Hey all, ButterKit 2.4 is now rolling out. Lots of UX and UI improvements in this one. Thanks to Will, Kip, Neo, Kurt and everyone else who helped get this out.

  • Rearrange artboards: you can now simply drag an artboard to where you want it
  • Quick add: A convenient new "+" button appears on the canvas to quickly add new artboards
  • More reliable App Store Connect uploads: fixed several pesky bugs
  • macOS 27 improvements and bug fixes

Update from the app or grab the latest version. As always, let me know if you hit any issues or have feature requests.

Zach

u/zach-builds — 28 days ago

Weekly feedback: what are you working on?

Looking for feedback on your app, screenshots, App Store page, website etc? Share your project here.

Please note automated / bot posts will be removed.

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u/zach-builds — 29 days ago

ButterKit 2.3 adds 3D Drop Shadows and more (rolling out now)

Hey all, ButterKit 2.3 is now live. The headline feature this time is 3D drop shadows: you can now add customizable shadows to devices to give your screenshots more depth. They're fully adjustable, so you can go subtle or dramatic depending on the look you want.

Also in this release:

  • More reliable MCP for AI agents: large documents now fully load every artboard before agents respond, so counts and design sets are always accurate. Plus several MCP bug fixes and better background performance.
  • Wider emoji support when publishing to App Store Connect, including symbols like ▲ and ▶︎ (thanks Will!)
  • Show/hide Inspector button by popular request (thanks Franklin!)
  • macOS 27 prep and an improved localization engine under the hood.

Update from the app or grab the latest version. As always, let me know if you hit any issues or have feature requests -- a lot of what's in this release came straight from this community.

Zach

u/zach-builds — 1 month ago

Weekly feedback: what are you working on?

Looking for feedback on your app, screenshots, App Store page, website etc? Share your project here.

Please note automated / bot posts will be removed.

reddit.com
u/zach-builds — 1 month ago

Rolling out shortly: 3D shadows for device mockups

(The video above was created with ButterKit Motion beta)

I've always found 3D shadows to be challenging to design for, so I'm really excited about this feature. You get full control: angle, distance, softness, opacity, and shadow color. Shadows track the device as you rotate it in 3D, so they stay physically accurate and even work across artboards (e.g. Device Overflow). Thanks to all who sent feedback and ideas on this. Rolling out shortly.

- Zach

u/zach-builds — 1 month ago

Weekly feedback: what are you working on?

Looking for feedback on your app, screenshots, App Store page, website etc? Share your project here.

Please note automated / bot posts will be removed.

reddit.com
u/zach-builds — 1 month ago

ButterKit Motion beta v0.1 is available now (free)

Hey all, the first ButterKit Motion beta is out. Thanks to everyone on Reddit and Discord who has helped with it so far.

It turns screen recordings of your app into polished product videos. Record your screen (or import media), drop it into a 3D device frame, choose motion and music, export video ready for sharing.

The details:

  • An exciting product video in a few minutes, not a weekend lost to a video editor.
  • Device frames, motion, and music are built in, so the output looks good without any editing skill. Much more coming soon.
  • Everything runs locally on your Mac ~ 20MB
  • It's free during the beta. Pricing comes with 1.0, and there'll be a one-time purchase option so you can own it.
  • Requires macOS 26 Tahoe or newer, Apple Silicon recommended
  • Download + info: butterkit.app/motion

If you found this post randomly: the original ButterKit app makes App Store screenshots. Motion is a separate app for animated product videos, App Store previews, launch posts, your website. The goal is for them to pair well together.

It's v0.1 so expect some rough edges, that's what the beta is for. Comment here or DM me with bugs, feature requests, or anything that feels off. Bonus points if you share a video you made with it. I read everything.

- Zach

u/zach-builds — 2 months ago

Weekly feedback: what are you working on?

Looking for feedback on your app, screenshots, App Store page, website etc? Share your project here.

Please note automated / bot posts will be removed.

reddit.com
u/zach-builds — 2 months ago

Weekly feedback: what are you working on?

Looking for feedback on your app, screenshots, App Store page, website etc? Share your project here.

Please note automated / bot posts will be removed.

reddit.com
u/zach-builds — 2 months ago

Rolling out now: Finder Quick Look support

New in ButterKit v2.2.05:

  • Support for Finder Quick Look: Preview your projects directly in macOS Finder. Select a .butterkit file and press Spacebar (or use the preview pane) to see what's inside without opening the app
  • UI improvements

Small update but hopefully makes using ButterKit a bit smoother!

- Zach

u/zach-builds — 2 months ago

Weekly feedback: what are you working on?

Looking for feedback on your app, screenshots, App Store page, website etc? Share your project here.

Please note automated / bot posts will be removed.

reddit.com
u/zach-builds — 2 months ago

v2.2 rolling out now: settings improvements, new app icon, bug fixes and more

ButterKit v2.2 is rolling out now! Thanks to all who sent in feedback this last week. Excited to finally roll out the refreshed app icon, Settings improvements, and bug fixes. Also rolling out a refreshed website to match. Additional templates rolling out shortly as well.

In this release:

  • Updated app icon, brand colors, and refined UI. New look, same great flavor.
  • Improved Settings UI
  • Added an easy-to-dismiss "What's New" announcement in the app (with a link to the changelog/documentation)
  • Bug fixes, animation tweaks, better onboarding and more butter all around

- Zach

u/zach-builds — 3 months ago

Weekly feedback: what are you working on?

Looking for feedback on your app, screenshots, App Store page, website etc? Share your project here.

Please note automated / bot posts will be removed.

reddit.com
u/zach-builds — 3 months ago

Weekly feedback: what are you working on?

Looking for feedback on your app, screenshots, App Store page, website etc? Share your project here.

Please note automated / bot posts will be removed.

reddit.com
u/zach-builds — 3 months ago

Available now: capture screenshots from Device Hub on Xcode 27 beta

The latest version of ButterKit (v2.1.07) is rolling out now and supports capturing screenshots right from the new Device Hub (macOS 27 beta) into ButterKit. Also improves animations on ProMotions displays.

Let me know how it works for you, more improvements coming soon!

More info in the docs →

u/zach-builds — 3 months ago

Available now in v2.1: improved App Store Connect experience, bug fixes and more

Hey all, v2.1 of ButterKit is rolling out now. Some highlights:

  • Fixes memory leak during large multi-language exports and reduces memory usage (thanks to all who helped track it down)
  • Improves App Store Connect upload user experience and status
  • Improves reliability of cloud translations
  • Fixes an issue where Apple Watch designs couldn't be uploaded to App Store Connect (thanks Frederique)

Available now for direct/web version and submitted to Apple for Mac App Store review. More templates rolling out shortly! Please keep the feedback coming.

- Zach

u/zach-builds — 3 months ago