The last couple App Store screenshots are about comfort and care.
Letterboxx has appearance options for different reading moods, plus encrypted backups so your newsletters, Letterboxxes, rules, highlights, and settings can stay tucked away safely.
Little Mac-app details, but important ones.
More App Store screenshot work for Letterboxx.
This batch gets into the little Mac-app details: Letterboxxes for organization, Auto-Delivery for recurring newsletters, list customization, and Message Diagnostics for the nerdy side of what arrived.
I want Letterboxx to feel calm on the surface, but thoughtfully built underneath.
I’ve been working on the App Store screenshots for Letterboxx.
They’re meant to show the app the way I think about it: a calm little Mac home for newsletters, with places to sort them, read them, clean them up, and highlight the parts worth coming back to.
Letterboxx is available in TestFlight now at https://testflight.apple.com/join/nnKwhSyf
It’s my first ever app, and it’s a love letter to email newsletters.
Letterboxx is in TestFlight now, and I’d really love for you to check it out.
⚡️ Yoink for Mac v3.7.2 – the better way to drag and drop – is now available and improves its Quick Look functionality and quality of life!
Give it a try: 28 days free, then one-time-lifetime purchase!
👉 https://blog.eternalstorms.at/2026/05/04/yoink-for-mac-v3-7-2-improves-quick-look-file-renaming/
Enjoy : )
Letterboxx is now in TestFlight!
I’m opening the first group of tester spots for people who want a calmer, Mac-first place to collect, organize, and read email newsletters.
It works with Gmail and IMAP, and it’s built around Letterboxxes, smart filters, Clean View, highlights, backups, and a dedicated reader that keeps newsletters out of your personal inbox.
Join early access here: https://letterboxx.app
VaultSort 3 is adding something big: Smart Categorize.
A fully local AI model (no cloud, no API key) that actually reads your files—PDFs, ePubs, docs—and groups them based on what’s inside, not filenames. It builds categories from your real data, not generic presets.
The goal isn’t “AI magic”—it’s fixing the messy reality of large file libraries. You stay in control with previews, rules, and on-device processing—just with way less manual setup.
Letterboxx is getting closer to TestFlight, and I’ll be adding early access folks there when it’s ready. There’s still room if you’re so inclined!
Head out to https://letterboxx.app and hit the ‘Get Early Access’ button if you want in early to help me test.
It’s been really motivating to see people finding the app and following along. If you’re a newsletter junkie like me, you’re going to love this app.
Thanks so much for the follows and encouragement!
Woke up to people already finding this account, which is a very nice surprise.
Letterboxx has been in active development since early February and is getting close to TestFlight. I’ll use this space to share progress, design decisions, privacy-minded newsletter reading, and the little Mac details that make software feel cared for.
Thanks for following along!
One of the core ideas behind Letterboxx:
Your newsletters should feel collected, not scattered.
Letterboxes give newsletters a place to land, so reading can feel more like opening a quiet library and less like digging through an inbox.
Still early, still changing, but the shape is coming together.
Letterboxx
chrisinoakland
Matthias Gansrigler-Hrad
VaultSort