Arno Appenzeller (@arno_app) header
Arno Appenzeller (@arno_app) profile picture

Arno Appenzeller

@arno_app

PAM (Privileged Access Management) in day time and night time app developer (I made µBrowser, PiPifier and other apps). https://teapawt.net/t.co/6VHeQ5w7Bs

 Karlsruhe, Germany
arno.app
Joined June 2009
  • Tweets6.6K
  • Following458
  • Followers385
Duometry is finally live on the AppStore. Play it by folding your iPhone Duo or rotate a fun dial on regular iPhones to fold. Get it here: apps.apple.com/us/app/duomet…
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Listening to the latest @appstoriesnet episode, I discovered that @viticci is pretty good at guessing angles with Duometry! 😄 Thanks for the shout-out, @johnvoorhees! Duometry: apps.apple.com/us/app/duomet…
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This could be handy when the new macOS beta is out (From: developer.apple.com/document…)
Image from Arno Appenzeller (@arno_app)
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Is there a full recording of @johnternus live presentation of the new MacBook Pro?
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My app being mentioned on @gruber @thetalkshow by @JoannaStern makes me so happy. And it is exactly like they said - it was so much fun exploring what new things are possible with the Duo while creating Duometry
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Arno Appenzeller retweeted
Mark Gurman (@markgurman) profile picture
Mark Gurman
@markgurmanOct 25
Everyone failed to point out the real problem with the iPhone Duo lacking Face ID: You can’t buy a Vision Pro with it.
Image from Mark Gurman (@markgurman)
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Seeing @UrAvgConsumer and his team playing Duometry is exactly how I imagined friends to explore the Duos folding mechanism together! apps.apple.com/app/id6814650…
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The new animated AppStore header banner are such a beautiful feature
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So cool to see Duometry here, too. Especially in the good company
MacRumors.com (@MacRumors) profile pictureMacRumors.com
@MacRumorsOct 23
The iPhone Duo Can Be a Tiny Mac, a Toaster, and a Nintendo DS macrumors.com/2026/10/23/iph…
Image from MacRumors.com (@MacRumors)
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So cool that Duometry is mentioned here! And hey - 20 degrees is not that much off @JoannaStern
Joanna Stern (@JoannaStern) profile pictureJoanna Stern
@JoannaSternOct 23
After a long day playing my fake iPhone Duo accordion, I like to unwind with a fake grilled cheese sandwich made on my fake Duo panini press and have a cold fake beer from my fake Duo fridge. Then listen to my fake Walkman and play a little fake soccer and fake Battleship. All on a very real $2,000 phone.
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Trotz Hülle den Winkel gut geschätzt mit Duometry - Respekt @RafaelZeier apps.apple.com/app/id6814650…
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Great to see that @AndruEdwards is pretty good at guessing angles with his Duos hinge in Duometry. apps.apple.com/app/id6814650… Thanks for mentioning!
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Very happy to see Duometry mentioned here. I can’t wait for all of you trying it out on the Duo
MacGeneration (@MacGeneration) profile pictureMacGeneration
@MacGenerationOct 22
Demain, l'iPhone Duo arrive avec son format original, et les développeurs n'ont pas attendu pour en profiter 📱 On a déniché les applications inédites qui valent le détour dès le jour J. Lesquelles exploitent vraiment ce nouvel écran ? igen.fr/app-store/2026/10/ip…
iPhone Duo : notre sélection d’applications originales à découvrir dès le lancement

iPhone Duo : notre sélection d’applications originales à découvrir dès le lancement

Les développeurs s’en donnent à cœur joie avec l’iPhone Duo. Dès la sortie du nouveau smartphone demain, le 23 octobre, de nombreuses applications inédites seront au rendez-vous pour exploiter son...

igen.fr
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Very cool to hear @markgurman and @AndruEdwards discuss the hinge’s precision using Duometry as an example. When I built the app, I honestly didn’t expect the hinge to work this well as an angle-measuring tool. Duometry: apps.apple.com/app/id6814650…
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Wow! Duometry is featured in @AndruEdwards fantastic iPhone Duo review: youtu.be/1q2oMoNPbDQ?t=186&i…. Thanks for this, Andru! I’d love for you all to try it however it is still stuck somewhere in AppStore processing
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Update: it’s live now. apps.apple.com/app/id6814650…
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Duometry should be out since 2 days. The app is ready for distribution but it is not appearing in the AppStore. This should be the public link: apps.apple.com/us/app/duomet… Is there anybody that knows anybody at Apple that could help with this? Feels very frustrating at the moment
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Good news: Duometry is now available! Thanks to everyone who helped. apps.apple.com/app/id6814650…
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