Riley Testut

Riley Testut

@riley.social

App developer. Building @deltaemulator.com and @altstore.io

3.1K followers296 following248 posts

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Riley Testut
@riley.social

OK nevermind, THIS is the coolest thing I’ve ever done to my iPhone

Riley Testut@riley.social

TIL iOS has hidden support for custom animated wallpapers and this is probably the coolest thing I’ve done to my iPhone in years

Riley Testut reposted

MacRumors.com
@macrumors.bsky.social

The iPhone Duo Can Be a Tiny Mac, a Toaster, and a Nintendo DS

macrumors.comThe iPhone Duo Can Be a Tiny Mac, a Toaster, and a Nintendo DSThe iPhone Duo has an all-new form factor with multiple folding and orientation options, and app developers are having some fun with it. You can find quite a few apps using the foldable display in unique ways, many with skeuomorphic designs. Tiny Computers ($3.99) Tiny Computers turns the ‌iPhone Duo‌ into a miniature retro computer, with options inspired by the Macintosh, Commodore 64, Amiga 500, iMac G3, iBook G3, and more. It works best with the ‌iPhone Duo‌ in a seated orientation, giving you a display and a virtual keyboard. The mini computers have clickable keyboards, desktop games, and paint programs, along with hidden files and easter eggs. Fold & Squish (Free) Made by the same developer as Tiny Computers, Fold & Squish lets you make Rorschach art with the Duo. You paint a design on one half of the Duo's display, close it, rub a finger over the outer display to "squish" the virtual paint, then open it up to see your finished design. An add-on "Sparkle Pack" includes glitter paints, rainbow paint, and pencil guides for helping you paint designs like butterflies, but the base feature set is available for free. Portal ($2.99/month) Portal is a relaxation app that offers "portals" to different natural environments, from a lava river in Iceland to the cloud forest in Costa Rica. There are over 100 locations, each with calming sounds and breathing exercises. The app can be used for meditation, but it also has focus timers and sleep timers. When the ‌iPhone Duo‌ is unfolded, scenes take up the entire display, but it also works especially well when the ‌iPhone Duo‌ is in tent mode. There are three free portals to use that are refreshed each month, and a Premium subscription is priced at $2.99 per month or $29.99 per year. Lake (Free) Lake is an adult coloring book that's been updated for the ‌iPhone Duo‌. Holding the Duo in portrait mode gives you a full-page coloring surface, and the developer tells us it's being updated for Apple Pencil. Lake has coloring pages from a long list of artists. It's free to download and comes with basic coloring pages and tools, but unlocking the full app requires a premium subscription that's $9.99 per month. Toastie ($2.99) Toastie turns the ‌iPhone Duo‌ into a toaster for making grilled cheese sandwiches. It's a game where you prepare the sandwich ingredients, then close the ‌iPhone Duo‌ to toast the sandwich. Timing is important, and the goal is to make a perfect grilled cheese. We turned the iPhone Duo into the world's most expensive toaster 🥪 Build the sandwich quickly, then close your Duo to toast it. Don't burn it though! Check it out: https://t.co/riRVUFLlm1 https://t.co/0llh2lv9R1— Tom Szykulski (@t_szykulski) October 7, 2026 Delta Game Emulator (Free) Popular game emulator app Delta has been updated for the ‌iPhone Duo‌, and it turns the Duo into a Nintendo DS. iPhone DuoでDelta、折り畳むと笑う https://t.co/DySRV7UMBz— たっくん＠超かぐプログラミング本 (@mikuta0407) October 23, 2026 The app has Nintendo DS controls, and when you close it, it looks like the shell of the gaming system and puts the game you're playing into sleep mode. Delta supports plenty of games from other systems too. TypeDraw ($4.99) TypeDraw turns the ‌iPhone Duo‌ into a notebook. It looks like a notebook when the Duo is closed, and then you can open it up to pages you can write on. The app supports ‌Apple Pencil‌. Taking notes on the iPhone Duo is so satisfying... especially when it looks and feels like a real notebook that truly belongs to you. With TypeDraw you choose what happens when you "open" your book, and you can personalise it with custom colours, fonts and even your own handwriting. For everyone lucky enough to have their hands on a Duo today: TypeDraw is available on the App Store now. For everyone else: it also looks and works great on regular iPhones 😄— Phil Traut ᯅ (@SpatiallyMe) October 23, 2026 Fold Accordion ($2.99) As the name suggests, Fold Accordion turns the ‌iPhone Duo‌ into an accordion. The hinge serves as the bellows, so the idea is to open and close the Duo to make music. There's a learn mode that lights up the keys you need to press. Living Earth ($5.99) If you're looking for an app that's ideal for the Duo's tent mode, Living Earth is worth checking out. It lets you set a location to get the time and local weather, plus it has a rotating globe that you can spin. When you unfold your ‌iPhone Duo‌, the globe takes up the entire display. The app shows live clouds, storms, and weather maps across the world, so you can keep track of hurricanes, tropical storms, and other weather events. Duometry ($2.99) Duometry is a game that gives you a target angle you have to match by folding the ‌iPhone Duo‌. The idea is to make your best guess at the angle, and then lock in to see if you were correct. Deck-Man ($4.99) Deck-Man turns your ‌iPhone Duo‌ into a retro cassette player. You open up the ‌iPhone Duo‌ to pick your music, insert the cassette, and then snap the Duo closed to start music playback. Orisuji ($4.99) Orisuji is a paper maze game where you start with the inner display, and then fold the ‌iPhone Duo‌ to the outer display to solve the puzzles. More Fun Apps * Foldissimo - If one pocket accordion wasn't enough, there's also Foldissimo, which lets you use your ‌iPhone Duo‌ to play accordion songs. * Fold Focus ($5.99/month) - Fold Focus is a pomodoro timer app that motivates you to keep your ‌iPhone Duo‌ closed for work, study, or creative sessions. While your device is shut, you work on building a virtual city. * Foldfish (Free) - Foldfish is a game where you unfold the ‌iPhone Duo‌ to cast, tap to throw, and then hold to reel in a catch. * Nitelore (Free) - Nitelore is an anti-gravity racing game with neon colors, and it looks great on the ‌iPhone Duo‌. Share Your Favorites Have you found other fun apps we don't have in our list? Let us know in the comments below.Related Roundup: iPhone DuoBuyer's Guide: iPhone Duo (Buy Now)Related Forum: iPhone This article, "The iPhone Duo Can Be a Tiny Mac, a Toaster, and a Nintendo DS" first appeared on MacRumors.com Discuss this article in our forums

Riley Testut reposted

Delta
@deltaemulator.com

2 years and 20 million downloads later... Delta 2.0 is finally here 🚀 It’s our BIGGEST UPDATE EVER 💜 🫧 All-new Liquid Glass design 🎮 Sega Genesis 🏆 RetroAchievements 📖 iPhone Duo support … and so much more Available NOW on AltStore PAL and the App Store!

Riley Testut
@riley.social

We managed to squeeze in one last feature for Delta 2.0: DLC for Pokémon games! You can now download custom DLC for games like Pokemon Emerald to interact with @shanegillio.bsky.social and I as NPCs, and even receive rare event items or Pokemon in return (and all made without AI 🙂)

Riley Testut reposted

AltStore
@altstore.io

Replying to @altstore.io

First is Fundial ⌚️ The most requested feature from every Apple Watch user is finally here: Fundial lets you use custom watch faces on your Apple Watch for the first time EVER! Thanks to Steve Troughton-Smith for showing this was possible (8 years ago!): github.com/steventrough...

Riley Testut reposted

AltStore
@altstore.io

Replying to @altstore.io

Next up is SoundLocks 🔒 SoundLocks allows you to replace the default iOS lock sound with your own custom sound – something Apple would never let you do! Easily choose from a list of built-in sounds or upload your own custom MP3 🎵

Riley Testut
@riley.social

Thanks to our intern Zoe, I changed my iPhone’s lock sound to be Mario saying “BYE BYE!” and it’s music to my ears every time I lock my device 😌

AltStore@altstore.io

Next up is SoundLocks 🔒 SoundLocks allows you to replace the default iOS lock sound with your own custom sound – something Apple would never let you do! Easily choose from a list of built-in sounds or upload your own custom MP3 🎵

Riley Testut
@riley.social

Finally have a chance to play with Duo simulator — pretty happy with how Delta’s game library adapts to different poses! Wondering if the custom page control would make more sense as a vertical bar though 🤔

Riley Testut
@riley.social

As for actually playing games, yeaaahhh gonna need to update basically _all_ the skins to not be over the crease 😅 Which also means I need to figure out how to update Delta’s skin format to support that, since it currently assumes a constant 19.5:9 aspect ratio for all iPhones without Home buttons…

Riley Testut
@riley.social

With iOS 27, users in the EU, Japan, and Brazil can now sideload apps (.ipa files) entirely on-device without ever using a computer!! Just install AltStore Classic with AltStore PAL, then follow our onboarding guide to easily get set up with Remote AltServers 👌

AltStore@altstore.io

Remote AltServers make sideloading easier than ever! Get started in seconds using our guided setup. Even better, on iOS 27 you can set up Remote AltServers completely on-device ✅ For PAL users, this means you can now install & use AltStore without EVER touching a computer!!

Riley Testut reposted

AltStore
@altstore.io

You’ve always needed a computer to use AltStore Classic.. until now! Introducing Remote AltServers, a new way to sideload all on-device 📱 For the first time ever, you can install and refresh apps from anywhere — no AltServer needed!

AltStore@alt.store

Start sideloading without a computer 🖥️ Install AltStore Classic to sideload apps wherever you are with Remote AltServers. #News

Riley Testut reposted

DEV Community [Unofficial]
@dev.to.web.brid.gy
dev.toHow we distribute an iOS app outside the App Store: a practical AltStore PAL walkthroughApp Store review rejected our app under Guideline 1.2 — the core mechanic (users rate each other's photos) is banned as a category, and no metadata change fixes that. So we became one of the first apps distributed exclusively through an alternative marketplace under the EU's DMA. Documentation for this path is thin and sometimes contradictory, so here is a step-by-step of what actually had to be done. ## Step 1. Alternative Terms Addendum You sign an addendum to the developer agreement in App Store Connect. You don't need to be an EU resident. Distribution is free up to 1M first annual installs (companies under €10M revenue get the Core Technology Fee exemption). ## Step 2. Registering with the marketplace AltStore has a REST API to register your developer ID — important: it's the UUID from your ASC profile, **not** the Team ID (registering with the Team ID silently fails — we stepped on that). The token goes into ASC: Users and Access → Integrations → Marketplaces. ## Step 3. Notarization instead of review You build and upload with the usual xcodebuild + upload. Then, instead of "Submit for Review", you send it for notarization: an automated security/functionality check, without content guidelines. Ours passed on the first try in ~30 hours. A mechanic banned on the App Store passes here. ## Step 4. Hosting the ADP yourself After notarization you download the Alternative Distribution Package: `manifest.json`, a `signature` file (no extension!), and several `.ipa` variants. You host it as-is; hierarchy and hashes must not change. Two gotchas: * the extensionless `signature` file — our SPA fallback on ASP.NET served index.html instead; fixed with ServeUnknownFileTypes on the static handler; * the `.ipa` must be served as `application/octet-stream`. ## Step 5. Source JSON and federation Next to it you put a `source.json`: marketplaceID (= the app's Apple ID), the manifest downloadURL, size, icon, screenshots, versions. Users add the source via an `altstore://source?url=…` link. Enable federation (a `fediUsername` field) and the app becomes searchable right inside the marketplace, no manual source add. ## Updates Each new version is the same loop: build → notarize → new ADP on the server → new entry in `versions[]` of source.json. AltStore picks up auto-updates itself. ## Limits and fallbacks Marketplaces work in the EU, Japan and Brazil, iOS 17.4+. For the rest of the world we run a PWA (standalone manifest + a minimal service worker — Safari installs it to the home screen) and a sideload IPA via AltStore Classic with our own source. The biggest non-technical problem is conversion: you have to explain to users what a marketplace even is, so we funnel all traffic to a single install page. ## Takeaways Cost beyond the developer account: zero. Actual time spent: about a week, most of it on the undocumented details above. If the App Store is closed to your app (or you just don't want to hand over 15–30%), this path works today. The app from this case study is Rate Me (rateme.lv/ios) — happy to answer questions in the comments.

Riley Testut reposted

Spark
@sprk.so

@sprk.so 🤝 @altstore.io giving users choice

AltStore@altstore.io

Proud to announce the amazing ATProto short-form social app @sprk.so is now available on AltStore PAL! Download now from our Featured section on the Add Source screen ✅

Riley Testut reposted

AltStore
@altstore.io

Proud to announce the amazing ATProto short-form social app @sprk.so is now available on AltStore PAL! Download now from our Featured section on the Add Source screen ✅

Spark Social@sprk.alt.store.ap.brid.gy

Spark Social. Take back your timeline Spark is the truly open shortform social app. Share photos and videos without one singular algorithm dictating who sees them. Anyone can create their own algorithm and subscribe to algorithms made by others. Built on […] [Original post on explore.alt.store]

Riley Testut
@riley.social

After 20 years of playing #Pokemon, my biggest fear finally came true: running into a shiny in the Safari Zone (Yes I screamed)

Riley Testut
@riley.social

Had such an incredible time at #WWDC26, my first in-person WWDC in over a decade! Perfect opportunity to take some Delta Camera photos too 📷

Riley Testut reposted

AltStore
@altstore.io

Our quest for world domination continues! AltStore PAL is now available in Brazil 🇧🇷 Starting today, iPhone users in Brazil can download AltStore PAL and join the community of users already in the EU and Japan 🌎 Download now (iOS 26.5+): altstore.io

Riley Testut reposted

David Imel
@davidimel.com

2 weeks ago I played Melee with @riley.social for practically the first time since my 24/7 college days and I still have a loose skin patch on my thumb from the GameCube thumb stick

Riley Testut reposted

Delta
@deltaemulator.com

Replying to @deltaemulator.com

And now for something VERY cool: built-in support for Epilogue’s GB & SN Operators 🤯 Connect your old cartridges to your iPhone or iPad to play them natively in Delta, including your actual save files from years past ⏳ Thanks to Epilogue for contributing this feature!

Riley Testut reposted

Delta
@deltaemulator.com

🚀 Delta 2.0b4 is now available for all Patrons! This beta continues our reimagining of Delta for the Liquid Glass era and even packs in some new experimental features ⚙️ Redesigned & updated settings 💧 Liquid Glass cheats UI 🎮 Epilogue GB/SN Operator Support

AltStore@alt.store

Delta 2.0b4 (160) NEW Redesigned Settings • Reorganizes settings into more easily navigable hierarchy • Icons help differentiate top-level settings • Access all settings options more quickly and intuitively Epilogue GB/SN Operator Support (thanks Epilogue!) • Connect game cartridges directly […]

explore.alt.storeOriginal post on explore.alt.store

Riley Testut reposted

AltStore
@altstore.io

It’s official…our most-requested feature EVER is coming to AltStore Classic 👀 Introducing on-device sideloading, a new way to use AltStore that lets you sideload apps WITHOUT A COMPUTER!! Coming soon to everyone, but available now in beta for all Patrons 🧵

Riley Testut reposted

AltStore
@altstore.io

AltStore PAL launched 2 years ago today 🎉 And to celebrate, we thought it would be fun to do a talk at @deepdishswift.com 2026 and share the full story leading up to release day! The VOD is coming soon, and we promise there will be some fun, untold stories — stay tuned 👀