# Developer Mode iOS 17

**URL:** <https://community.thunkable.com/t/developer-mode-ios-17/2950110>\
**Category:** Questions about Thunkable X\
**Tags:** thunkablelive, app, apple\
**Created:** [April 16, 2024, 4:19pm UTC](https://community.thunkable.com/t/developer-mode-ios-17/2950110 "2024-04-16T16:19:44Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![overshield](https://avatars.discourse-cdn.com/v4/letter/o/e19b73/32.png) [@overshield](https://community.thunkable.com/u/overshield)\
**Post date:** [April 16, 2024, 4:19pm UTC](https://community.thunkable.com/t/developer-mode-ios-17/2950110/1 "2024-04-16T16:19:44Z")

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I’m instructed to enable developer mode on my iPhone, but I don’t find that under Settings \> Privacy and Security \> scroll all the way down…

I’ve looked online and seen where other people have the option at the bottom under the subheader called “Security” some screenshots have “Lockdown Mode” next to Developer Mode as well.

I have no developer mode, how am I supposed to turn this on?

Thanks

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**Author:** ![ioannis](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/ioannis/32/146956_2.png) [@ioannis](https://community.thunkable.com/u/ioannis)\
**Post date:** [April 17, 2024, 9:03pm UTC](https://community.thunkable.com/t/developer-mode-ios-17/2950110/2 "2024-04-17T21:03:32Z")

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Hello @overshield  
It seems that Apple removed the toggle on iOS 17.  
More information here: [developer mode option not visible in Sett… - Apple Community](https://discussions.apple.com/thread/255410532?sortBy=best)

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**Author:** ![overshield](https://avatars.discourse-cdn.com/v4/letter/o/e19b73/32.png) [@overshield](https://community.thunkable.com/u/overshield)\
**Post date:** [April 24, 2024, 6:12am UTC](https://community.thunkable.com/t/developer-mode-ios-17/2950110/3 "2024-04-24T06:12:03Z")

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I have done this. Developer mode is now enabled.

When I click the downloaded app it says “this app could not be installed because its integrity could not be verified”

I deleted the app and downloaded another one.  
I’ve looked everywhere online with no solutions.

Please help.

I should add I’ve already looked in general \> device management and only a VPN option is there. Nothing else.

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**Author:** ![ioannis](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/ioannis/32/146956_2.png) [@ioannis](https://community.thunkable.com/u/ioannis)\
**Post date:** [April 30, 2024, 6:10pm UTC](https://community.thunkable.com/t/developer-mode-ios-17/2950110/4 "2024-04-30T18:10:35Z")

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Hello @overshield 👋  
Are you downloading the app from Testflight?

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**Author:** ![overshield](https://avatars.discourse-cdn.com/v4/letter/o/e19b73/32.png) [@overshield](https://community.thunkable.com/u/overshield)\
**Post date:** [April 30, 2024, 8:28pm UTC](https://community.thunkable.com/t/developer-mode-ios-17/2950110/5 "2024-04-30T20:28:06Z")

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Idk what test flight is but I download from Thunkable

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**Author:** ![ioannis](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/ioannis/32/146956_2.png) [@ioannis](https://community.thunkable.com/u/ioannis)\
**Post date:** [May 1, 2024, 2:23pm UTC](https://community.thunkable.com/t/developer-mode-ios-17/2950110/6 "2024-05-01T14:23:56Z")

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Hello @overshield  
Thank you for sharing more information  
In our doc you can find the steps to download your app on iOS: [Download Your App on iOS | Drag and Drop | Thunkable Docs](https://docs.thunkable.com/settings/manage-your-projects/download/iosdownload)

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<div class="post-metadata">

**Author:** ![overshield](https://avatars.discourse-cdn.com/v4/letter/o/e19b73/32.png) [@overshield](https://community.thunkable.com/u/overshield)\
**Post date:** [May 1, 2024, 11:03pm UTC](https://community.thunkable.com/t/developer-mode-ios-17/2950110/7 "2024-05-01T23:03:31Z")

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Followed all the steps, I saw where my old iPhone was already registered as a test device or whatever.

I added my new iPhone and followed all of the steps with the UDID.

Deleted the old app then redownloaded the iOS app using Thunkable.

Got the download email, then installed the app.  
Says cannot be installed bc it’s integrity could not be verified. 😑

Any other suggestions?

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**Author:** ![system](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/0/f/0f59f292712368bce16ff80133ae10de8a6f27e8.png) [@system](https://community.thunkable.com/u/system)\
**Post date:** [July 30, 2024, 11:03pm UTC](https://community.thunkable.com/t/developer-mode-ios-17/2950110/8 "2024-07-30T23:03:54Z")

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