The best alternatives to TeamInk are Quip, Trainual, and Microsoft Authenticator. If these 3 options don't work for you, we've listed a few more alternatives below.
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Quip helps teams get more done by seamlessly blending documents, data, & conversations in a unified platform available online, as an app, or inside Salesforce.
Microsoft Authenticator is a multifactor app for mobile devices that generates time-based codes used during the Two-Step Verification process. Please note that one-tap push notification and 6-digit SMS code authentication options are not supported when using this mobile authenticator.
An online search tool that searches through ppts, pdfs & docs to find keywords. Employs a fuzzy search algorithm & multi-document search that makes it 100's of times more user friendly than a simple CTRL+F. Currently targeted at university students.
Papermind is a collaborative article-editing and document management platform for Slack. Create and share articles with your team members. Drag and drop documents or link to your G Suite, Dropbox and more. Share articles and files with your team through Slack.
No more paperwork - FlyDocs is the modern digital office on your PC and smartphone. You can scan receipts, letters, pictures and more in seconds. ML is used to automatically tag & classify documents making them very easy to search in future.