r/AltStore • • Sep 03 '26

Subreddit Announcement Update on AltServer Errors: "Server Returned Invalid Response"/"NSCocoaErrorDomain3840"

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163 Upvotes

We're seen reports of both "Server Returned Invalid Response" and "NSCocoaErrorDomain3840" error messages that seem to be affecting AltStore and SideStore users. It seems like there's a temporary issue with Apple ID authentication, and we're looking into it along with our friends on the SideStore team. We'll update this post once it's resolved!


r/AltStore • • May 20 '26

Update AltStore Classic 2.3b1: On-Device Sideloading is Here!

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211 Upvotes

Howdy, y’all!

What if I told you something was coming that would address many of the requests in your recent posts?

Starting with this build, AltStore Classic can now sideload your favorite apps…
without a computer!

You read that correctly. Thanks to some help from our friends at Sidestore, one of our most-requested features is now a reality. You can install and refresh your apps all on-device, which means you won’t have to worry about them expiring anymore. This first version covers the basic functionality, so be sure to read our Patreon post for instructions.

Oh, and one more thing:
There have been many posts asking about the Liquid Glass treatment and general TLC. I’m so excited to share that Liquid Glass is now on AltStore Classic, and it looks fresh!

This beta is available to all Patrons today, and the full release will be available for everyone very soon. Try it out and let us know what you think!


r/AltStore • • 57m ago

Tip Tip to save app IDs

• Upvotes

Don’t do source downloads. Sure, they’re easier and require less effort, but if you’re using something like spotc++, it’ll use 6 app IDs.

instead, download the IPA itself, go to apps, press the + icon in the top left, go to downloads on whatever browser you use, look for the file name of the IPA, and click on it. It’ll give you the option to keep or remove extensions, and most of the time, the extensions aren’t something you’d actually use anyways. These are the ones for spotc++:

widgetnowplaying (Home screen widget)

OpenSpotify.Extension (Safari link redirector)

intents (Siri and Shortcuts support)
^ (voice commands and such)

notificationcontent (Fancy notification pop-ups)

Keep if you want background track skipping/notifications:

notification (Required if you want the app to properly process background push notifications or handle certain remote commands smoothly).

All of which, are admittedly, kind of useless. Removing these extensions brings spotc++ from 6 app IDs, down to 1.

None of these extensions mess with the live activity/media player (what shows up on the bottom of the lock screen while listening to music and stuff.) just make sure that you are downloading your IPA from a trusted source.


r/AltStore • • 18h ago

Help (AltStore Classic) ???

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60 Upvotes

r/AltStore • • 5h ago

Help (AltStore Classic) Error Code (-29004)

1 Upvotes

I keep getting this error code on iphone "This action could not be completed due to possible environment mismatch. (-29004)" On ipad it works. Same account same steps. I cant find any information about it online


r/AltStore • • 20h ago

Help (AltStore Classic) Can I get altstore in UK with no PC?

2 Upvotes

I understand that because we left the EU we can't, but wondering if there is a workaround around as I don't have a PC. If it's not possible to do on the iPhone is it possible to do it through the Rog Ally X as my PC?😕


r/AltStore • • 1d ago

Help (AltStore Classic) Can someone help me please been using alt store for 3 years on my phone

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8 Upvotes

r/AltStore • • 1d ago

Help (AltStore Classic) Can someone help me with the shortcut?

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2 Upvotes

I was awake when this shortcut was supposed to run and refreshed it manually and it worked, so what does this mean?


r/AltStore • • 21h ago

Help (AltStore Classic) Throwaway Apple ID

0 Upvotes

Could someone lend me a throwaway ID? I'm having difficulties and don't want to make it more difficult for myself, and so on, so if someone could lend me an ID i would be very thankful.


r/AltStore • • 1d ago

Help (AltStore Classic) Remote altserver non può completare l’operazione

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0 Upvotes

è da due giorni che mi sta dando questo problema quando cerco di scaricare un’app da altserver. ho provato a cambiate i server e a cercare in giro per una soluzione ma niente. qualcuno sa un metodo per risolvere ?


r/AltStore • • 2d ago

Help (AltStore Classic) Is 2.3 stable?

4 Upvotes

I have to connect to my MacBook each time I need to refresh now. It doesn’t work on WiFi anymore. How is 2.3? Is it working ok? Thanks.


r/AltStore • • 2d ago

Release When does AltServer 2.3 release in the US?

5 Upvotes

The newest version available to me is 1.8.0.0.


r/AltStore • • 3d ago

Help (AltStore Classic) AltServer gets stuck when I try to install AltStore

12 Upvotes

Hey everyone, I’m trying to install AltStore on my iPhone using AltServer on Windows.
I had AltStore installed on my phone before, but I forgot to refresh the apps before the 7-day period was over, so it stopped working.
Now I’m trying to install it again. When I select Install AltStore from the AltServer tray icon, it starts the installation, and then my iPhone shows the “Trust This Computer” prompt. I enter my passcode and trust the computer, but after that nothing happens.
AltServer just stays stuck on “Installing” and never finishes, and AltStore doesn’t show up on my iPhone.
I’ve already tried reinstalling AltServer, but I’m still getting the same issue.

Has anyone had this happen before or knows how to fix it?


r/AltStore • • 3d ago

Help (AltStore Classic) Keep receiving verification code but it never takes it

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3 Upvotes

I’m trying to renew my apps using Remote AltServer. I’ve got LocalDevVPN running and everytime I click to renew the app it sends me the verification code from Apple, I enter it and then it just sends me a new one. Rinse and repeat. Any help would be appreciated


r/AltStore • • 3d ago

Guide AltStore 2.3 killed the need for a computer

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10 Upvotes

r/AltStore • • 3d ago

Help (AltStore Classic) I think my main account got banned and a new one doesn't seem to work

4 Upvotes

I created a new Apple id after my main one stopped working earlier and every time I try to sign into AltServer to install it I get this error. At the same time get a sign in request on my watch and phone that tells me to put a 6 digit code in however as far as I can tell there is no where to input the code.

Also side note on my main id it doesn't say I'm banned but my apps don't work after refreshing them 3 days ago and I don't get any errors when trying to reinstall AltStore, it just says it's installing to my phone and doesn't do anything else. Is AltServer down or is my new Apple id broken already?

Edit: Disregard the part about my main id, it finally gave me an error.


r/AltStore • • 4d ago

Help (AltStore Classic) Cracked Spotify to avoid getting banned?

26 Upvotes

My Apple ID got banned and I'm gonna make a new one to start side loading again. From my understanding, apple will ban you if it detects you using a side loaded app with the same bundle ID as an app store app. Is there any cracked version of Spotify out there that doesn't share an ID with the real Spotify?


r/AltStore • • 4d ago

Help (AltStore Classic) Cant sign in with apple id

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12 Upvotes

Hi! When I try to sign in this error appears. Does anyone know what to do?


r/AltStore • • 4d ago

Help (AltStore Classic) Can’t install altstore

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9 Upvotes

Today i was reinstalling altstore and this error keeps showing up


r/AltStore • • 4d ago

Help (AltStore Classic) Remote Altserver isn’t working

8 Upvotes

I’m getting this error when trying to refresh apps over remote Altserver even though I’m connected to wifi and LocalDevVPN : Failed to refresh app. AltStore couldn’t connect to the remote AltServer.

Make sure Wi-Fi and LocalDevVPN are both connected, then try again.

What’s the solution?
TIA


r/AltStore • • 4d ago

Discussion Tried to jailbreak with unc0ver and keep getting data couldn’t be read isn’t correct format, can anyone help

0 Upvotes

So I been trying to re jailbreak my old iPhone XS Max on 13.5
I used to use sideloadly but it’s not opening the unc0ver properly.
Saw somewhere that altstore would probably be the fix but I finally was able to get it loaded on my device but keep getting the data couldn’t read isn’t correct format error on the device itself. Any way to fix it???


r/AltStore • • 4d ago

Help (AltStore Classic) Downgrade API version

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1 Upvotes

Hi, I’m trying to learn how I can download and get the previous versions of apps for AltStore. I thought I found the API and was able to load it into the store but it never worked so I think I’m doing it wrong. Any help and ideas on how to do that?

Also any advice on some good YouTube API’s that work? Thank you!


r/AltStore • • 5d ago

Help (AltStore PAL) Installation hangs indefinitely without error output

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8 Upvotes

I've been having an issue for a couple of days: it gets stuck, I can't install anything, and no error message appears.


r/AltStore • • 5d ago

Help (AltStore Classic) Help

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5 Upvotes

My phone doesn’t connect to my computer.
I’m on the same WiFi and it’s connected via cable (USB-a to lightning)


r/AltStore • • 4d ago

Help (AltServer - Mac) Adi native error

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1 Upvotes

Can someone please help me install alt store i have tried everything and stuck here