Hi everyone, We’ve identified a bug affecting data collection on iOS devices. Users attempting to submit forms that were previously saved as drafts are encountering a 500 error. In some cases, users are also being repeatedly prompted to log in before submitting. Unfortunately, logging in does not r…

Hi everyone, The issue has now been resolved. If you have any further questions or need additional support, please let us know.

Hi everyone, We have recently started experiencing a serious issue with one of our Enketo web forms. The form is configured to allow anonymous submissions (the “Allow submissions to this form without a username and password” option is enabled), but users are now getting a message saying they need …

[image] ukr018: We’ve also noticed that this happens mostly on iPhones (Safari). We’ve identified an issue with Enketo running on the latest patch releases of iOS 26.x, and are working urgently on a fix. AFAIK you will only see this issue on iOS. But because all browsers on iOS are required …

Hi,hank you very much We hope this gets resolved as soon as possible!

This looks like a Safari/IndexedDB issue rather than the form itself. Test the same form in another browser and check if any recent Enketo or server updates changed authentication behavior. If it’s mostly affecting iPhones, sharing the Enketo version and iOS version may help narrow it down.

Good morning, some of our iPhone users (~20 of 40) on our volunteer team are having issues submitting forms they have filled out. All forms are set to not require login. The message says data cannot be submitted without login and asks if you want to login now or later. Either response doesn’t work. …

@kellyrhoda17 Welcome to the forum. It’s worth reviewing the project settings you’ve configured. Please make sure the option “Allow submissions to this form without a username and password” is enabled, as described in the documentation: Allowing submissions without authentication - Sharin…

Hi. I’m also in a similar situation. I’ve received some reports over the last few days that users cannot submit data because they are required to login. Most people are able to submit without any problems, but I wouldn’t know about drop-offs for those who don’t reach out. I confirm all our settings…

Thanks for chiming in for this problem - that is exactly what is happening to just a few members of our volunteer team. Someone suggested it might be a local caching problem, but I’d love a step by step on how to deal with that (I’m a Kobo app user so not familiar with iPhone settings). Thank you!

An update. Looks like it is partially a local caching problem. However, when the user clears their cache, deletes the form, restarts their phone, reloads the form, it works ONCE. Then the browser directs them to login (not required), and so we are back in the loop. It is not feasible to do this for …

I’m experiencing the same issue on iPhone using Kobo web forms for offline field data collection. Anonymous submissions are enabled (“Allow submissions without a username and password” is turned on). The form works offline and allows data entry, but when I regain internet access and try to submit,…

KoboToolbox Community Forum

[SOLVED] Known issue: Temporary Issue Affecting Submissions on iOS devices

User Support Bug Reporting

Please read our documentation and tutorials at the