tap into a username or password field. Keyboard should pop up. And there should be a button or buttons related to passwords, depending on which you have authorized. Open Settings on your iPhone. Search for "AutoFill". Make sure AutoFill Passwords & Passkeys, as the top, is enabled. Then make sure LastPass is enabled. Answer from danh_ptown on reddit.com
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LastPass
support.lastpass.com › s › document-item
Customer
April 22, 2025 - Loading · ×Sorry to interrupt · Refresh
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Reddit
reddit.com › r/lastpass › is lastpass on iphone supposed to open the app and then do absolutely nothing?
r/Lastpass on Reddit: Is LastPass on iPhone supposed to open the app and then do absolutely nothing?
June 17, 2025 -

Using LastPass on iPhone in Safari, I get that little icon over login or registration fields. Naturally, I tap it—expecting it to autofill or at least try to help. Instead, it opens the LastPass app… and that’s it. No autofill, no link back to Safari, nothing I do in the app carries over. Just a black hole of user experience.

This “feature” has been broken for years, and I’ve stubbornly put up with it out of some misplaced brand loyalty. But today it actually prevented me from logging into a site until I uninstalled the app entirely.

So… is this actually how it’s designed to work? Or is it just been broken for so long that we’re pretending it’s normal?

Discussions

Lastpass login not working on new iPhone, but still works in browser.
Are you using free or premium? More on reddit.com
🌐 r/Lastpass
8
6
August 10, 2021
What’s going on with iOS?
Have you uninstalled and reinstalled the plugin? https://support.lastpass.com/s/document-item?language=en_US&bundleId=lastpass&topicId=LastPass/basic_troubleshooting_lastpass_app_iOS.html&_LANG=enus More on reddit.com
🌐 r/Lastpass
5
11
October 29, 2024
LastPass on iOS 17 - Autofill still broke… - Apple Community
LastPass on iOS 17: Keychain disabled but still opens. Hello all, I have an iPhone 15 running iOS 17.0.2. I have installed LastPass as my password manager. The phone is new and all apps are fresh installs - not restored from a backup. The issue I'm having is this: In Settings --> Passwords ... More on discussions.apple.com
🌐 discussions.apple.com
July 19, 2024
Is LastPass on iPhone supposed to open the app and then do absolutely nothing?
tap into a username or password field. Keyboard should pop up. And there should be a button or buttons related to passwords, depending on which you have authorized. Open Settings on your iPhone. Search for "AutoFill". Make sure AutoFill Passwords & Passkeys, as the top, is enabled. Then make sure LastPass is enabled. More on reddit.com
🌐 r/Lastpass
5
6
June 17, 2025
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Apple Community
discussions.apple.com › thread › 255163837
LastPass on iOS 17: Keychain disabled but… - Apple Community
In particular, when it’s necessary to select LastPass in the autofill options & not use an already present favourite password. When LastPass is selected during the autofill process, it triggers a process that results in a ‘white empty box’ appearing on screen. Had the process worked correctly, the box would instead be filled with your own LastPass password listings & password recommendations based on the readily available information.
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JustAnswer
justanswer.com › smartphones › nwehv-recently-updated-newer-iphone-once-did.html
Troubleshooting LastPass Issues on iPhone and Mac | Expert Q&A
January 14, 2024 - Everytime I get a notice that the ... is not downloaded to my browsers. I have downloaded them all and still cannot get to my account. I was even given a chance to have a one-time password, which didn't work either. What can I do to get into my account? Technician's Assistant: I understand that you're having trouble signing into your LastPass account on your new iPhone...
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Reddit
reddit.com › r/lastpass › lastpass login not working on new iphone, but still works in browser.
Lastpass login not working on new iPhone, but still ...
August 10, 2021 -

I just got a new iPhone 12 and my Lastpass app login (via email + master pass) is not working, it's acting like the password is wrong. I tried it in my browser and it worked fine. I changed my master password and tried it again on my iPhone app and it still didn't work. I also tried uninstalling/reinstalling and still no luck. I'm not sure now what next step to take, is this a known issue?

Edit: Thanks for the help everyone, I didn't change anything and it just started working today. Not sure what happened but it's all good now.

Find elsewhere
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JustAnswer
justanswer.com › software › o5f26-going-round-circles-cannot-login-lastpass.html
I am going round in circles! I cannot login to my LASTPASS account on my iPad or iPhone. I have tried to use LASTPASS
Outdated versions can sometimes cause login issues. Reinstall LastPass: If the problem persists, you may consider uninstalling and reinstalling the LastPass app on your iPad and iPhone.
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LastPass
support.lastpass.com › help › lastpass-for-ios-autofill-faqs
LastPass for iOS Autofill FAQs - LastPass Support
February 11, 2025 - We don’t recommend it. While the new iOS Safari extension provides a great experience on Safari, across other browsers and native applications you will still want to use the iOS autofill to fill your login credentials from LastPass.
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Reddit
reddit.com › r/lastpass › what’s going on with ios?
r/Lastpass on Reddit: What’s going on with iOS?
October 29, 2024 -

Seriously, LastPass on iPhone has become nearly unusable. Just a short list of issues:

  1. Oftentimes LastPass doesn't show up on input screens. Just nothing.

  2. Sometimes the LastPass chooser blocks other elements on the webpage and there's no way to tell it to go away. I have to disable LastPass to use some websites.

  3. I have to use "open in LastPass" at least every other usage. Then it somehow forgets whatever search context it had, and it's just a page of my vault.

  4. Sometimes refuses to save passwords when you're entering them, requiring you to almost immediately use the lost password flows.

  5. If you have multiple logins for those websites that do email first, submit, then password (like Ticketmaster) LastPass always chooses the wrong account. I can't remember the last time I signed into Ticketmaster with LastPass without resetting my password. I have season tickets, this is a constant frustration.

I've been using this for years and I'm just hitting the point that the built in password manager on iOS is more useful. What is going on? It's like they've stopped developing it for iPhones and are just letting it rot.

🌐
Apple Community
discussions.apple.com › thread › 255686267
LastPass on iOS 17 - Autofill still broke… - Apple Community
July 19, 2024 - In particular, when it’s necessary to select LastPass in the autofill options & not use an already present favourite password. When LastPass is selected during the autofill process, it triggers a process that results in a ‘white empty box’ appearing on screen. Had the process worked correctly, the box would instead be filled with your own LastPass password listings & password recommendations based on the readily available information.
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JustAnswer
justanswer.com › smartphones › obqe0-husband-new-phone-yesterday-set-face-id.html
Troubleshooting LastPass Face ID Issues: Expert Q&A
If LastPass won’t log in using Face ID, first uninstall and reinstall the app to reset biometric settings. Ensure Face ID is enabled for LastPass in iPhone Settings > Face ID & Passcode. Verify the master password separately on another device ...
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Early Retirement
early-retirement.org › forums › community forums › technology, media & e-gadgets
LastPass autofill not working on iPad and iPhone | Early Retirement
October 9, 2024 - I'm not sure how to do this on iOS, but on Android I would go to the app info panel, tap Storage, then clear all app data, then uninstall and reinstall. It could be the app data is corrupted. ... Just got a new iPhone. I have a iMac and iPad. Lastpass works well on all three.