1Password 4, the incredibly popular password manager from AgileBits, is finally coming to Android next month. Designed for both phones and tablets, the full-featured app will resemble its iOS counterpart, and it will be completely free to use… until August 1, 2014.

We all forget important passwords — most of us simply have too many to remember. We get around this by picking one and using it for everything, but this is super insecure. To protect our services and our data, we need strong passwords for everything we use — and they should all be unique.

1Password helps you generate those passwords, then remembers them so that you don’t have to. It’ll store your logins for Gmail, Facebook, Twitter, Dropbox, Amazon — every service you can think of. It’ll also remember credit card details, membership numbers, and other important information.

Everything stored in your 1Password vault is encrypted, and the only way to gain access to the data is with a master password — which only you will know. The data syncs across all of your devices via the cloud, so it’s with you wherever you go.

1Password isn’t just a password vault, either. You don’t need to log in, copy the password you need, and then paste it into your browser. It has a browser built-in on Android, so you just need to visit the website you want and 1Password will do the rest. There are also 1Password apps for Mac and PC, and browser extensions for Safari, Chrome, Firefox, and Opera.

When 1Password hits Android on Tuesday, June 10, it will be completely free with all features unlocked until August 1. It will go then into “reader mode,” allowing you to access your existing passwords only. You can unlock it again with an in-app purchase.

• SourceAgileBits