Apps & Software
Facebook or Instagram Hacked? How to Get Your Account Back
Locked out of Facebook or Instagram, or seeing posts you didn't make? Use Meta's official recovery pages, secure the account, and avoid fake “recovery” helpers.
Apps & Software
How-to guides for Gmail, WhatsApp, Zoom, Google Drive and other everyday apps.
8 guides · Checked against official sources
Latest apps & software guides
Apps & Software
How to Back Up WhatsApp Chats on iPhone and Android
Back up your WhatsApp messages and media to iCloud or your Google Account, set automatic backups, and restore your chats on a new phone.
Apps & Software
How to Convert a PDF to Word for Free (and Edit It)
Open a PDF in Microsoft Word or Google Docs to turn it into an editable document, without uploading it to unknown converter websites.
Apps & Software
Google Storage Full? How to Free Up Space in Gmail, Drive and Photos
Your free 15 GB is shared by Gmail, Google Drive and Google Photos. Here's how to see what's using it and clear space without losing what matters.
Apps & Software
How to Schedule an Email in Gmail and Outlook
Write now, send later. Here's how to schedule emails in Gmail and Outlook on computer and phone, and how to change or cancel a scheduled message.
Apps & Software
How to Share Your Screen on Zoom (Computer and Phone)
Share your whole screen, one window or a video with sound in a Zoom meeting, fix the Mac permission problem, and share from your iPhone or Android phone.
Apps & Software
How to Unsend an Email in Gmail (and Get More Time to Do It)
Sent an email too soon? Gmail's Undo Send lets you take it back for a few seconds. Here's how to use it and how to extend the time to 30 seconds.
Apps & Software
How to Use WhatsApp on Your Computer (Web and Desktop)
Link WhatsApp on your phone to WhatsApp Web or the desktop app with a QR code or phone number, plus how to log out of linked devices you don't use.
How-to guides for the apps you use every day
Gmail, Google Drive, WhatsApp, Zoom and Microsoft Word are packed with useful features most people never find, like scheduling emails, unsending a message or backing up chats. Our guides explain them step by step.
Apps update often, so we check every guide against the app maker's own help center and link it at the end. If something has changed, please let us know.
Five app features worth knowing
- Gmail's Undo Send, which gives you a few seconds to take an email back.
- Scheduled sending in Gmail and Outlook, to send emails at the right time.
- WhatsApp chat backups, so you don't lose messages when you change phones.
- WhatsApp on your computer, linked to your phone.
- Google storage cleanup, to free space shared by Gmail, Drive and Photos.
Apps & Software: frequently asked questions
Are these guides for phone or computer?
Both, where it matters. When steps differ between the mobile app and the website or desktop app, we show each version.
Why does the app look different from your guide?
Apps update frequently and sometimes test new designs with some users first. The official help page linked at the end of each guide has the latest steps.
Are you affiliated with Google, Meta, Microsoft or Zoom?
No. TechSafetyLab is independent. Product names and trademarks belong to their owners, and we link to their official help pages so you can check every step.