Zero Password Manager 4+

Offline save and fill password

Blue Space Information Technology Co., Ltd.

    • 4.9 • 27 Ratings
    • Free
    • Offers In-App Purchases



Be born for securing passwords. The safest offline password manager to generate, store and fill passwords.

Why is Zero password manager (formerly ID Guard Offline) more trustworthy?
- We have been developing many verifiable security technologies instead of "Please trust the developers".
- We have consistently improved the security instead of always saying, "The UI has been updated again".

【Solid security model】
- True offline keeps your data isolated from the Internet.
Your passwords are only stored on your phone and can never be uploaded to the cloud secretly.
- Security chip encrypts your data on your device.
Mobile wallets use the same chip to protect your card information, so if you trust the mobile wallet, you can trust Zero.
- Neither require sign-up nor collect personal information.
We don't have any information on you and don't know who you are, let alone bother you with ad tracking.
- Biometric authentication to safely unlock the app.
Or you can set a master password for an extra layer of protection.
Of course, we also use other standard encryption technologies like AES-256 and PBKDF2.

【Feature-rich and easy to use】
- Account security templates
Hundreds of account templates, including Apple ID, Capital One, Binance, Epic, etc., can hold all sorts of security information you can think of, such as passwords, recovery keys, and security q&a. Some templates also have security tips.
- Save payment cards
As long as you enter the card number, Zero password manager can automatically identify the card issuer, card organization, etc. It's easier than ever to store payment card information.
- Autofill passwords
Fill in your username and password on mobile apps or websites with only two taps. Zero password manager will also automatically check the security of the app or website you are filling in.
- OTP authenticator
Zero password manager integrates OTP (one-time password) authenticator to facilitate 2FA. You can keep passwords and OTPs in just one record.
- Desktop browser extension
With the extension, you can scan QR codes with the app to safely fill passwords into desktop browsers (Safari, Chrome, Edge, and Firefox).
- Password generator
Besides the most basic options like numbers, letters, and length, you can also choose to include certain special symbols, emojis, etc., in your passwords. It works for websites with complex password rules.
- Find back master password
Forgot your master password? Don't worry. You can ask your friends to help find it back; they can't peek at any data.
More great features like password meter, password timeline, password change reminder, etc. are all available in Zero password manager.

If you have any questions, please get in touch with us:

What’s New

Version 2023.03

Se­cu­ri­ty Im­prove­ments:
- Updated account security templates: AirDroid, DigitalOcean, IBKR, JetBrains, Nvidia, Microsoft365, etc.

Per­mis­sion Changes: NO

- Allow taking photos to add attachments or modify custom logos.
- For accounts with multiple passwords, you can set the default to auto-fill the first one.

Ratings and Reviews

4.9 out of 5
27 Ratings

27 Ratings

chloromycetin ,

brilliant app

No need to upload my data to cloud, but only save on my phone. Good customer support, really patient and professional, answered all my questions. Am happy to use the app and satisfied with your wonderful service. Thank you so much!

Developer Response ,

Hi chloromycetin, thank you for the 5-star review! We will keep up the great work😄

Coisissie ,

Gr8 app, love it

Have been a pro user for more than a year. No need to sign up, no need to submit any personal information, really private and safe. Lots of nice features and soooo easy to use.

Developer Response ,

Hi Coisissie, thank you for your love to this app! Recommend you install and use the browser extension if you haven't tried it before. With the extension, you can safely fill in passwords in desktop browsers like Chrome, Firefox, Edge. Like the app, the extension is no need to sign up and no need to submit any personal information. Check out

nicept ,

A rising star?

Although this app has only been released for 9 months, it has done a good job. It's different from many other password managers. I am looking forward to your future development.

Developer Response ,

Thanks. We will do better.

App Privacy

The developer, Blue Space Information Technology Co., Ltd., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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