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Lock It: Calculator Vault
Lock It: Calculator Vault — Looks like a calculator. Opens like a vault.
About Lock It: Calculator Vault
Lock It: Calculator Vault is a calculator that does real math. Type your own secret equation and press =, and it opens a private vault instead. Inside, you can keep photos and videos, notes, passwords and 2FA codes, encrypted with AES-256 on your phone. You can chat and make live video or voice calls with people you invite by key or QR code. Free with ads; Premium Pro is $4.99/month and Offline Vault is $9.99 one time. Search "Lock It: Calculator Vault" on Google Play: https://play.google.com/store/apps/details?id=com.appfactory.calculator&referrer=utm_source%3Dindietools%26utm_medium%3Dlisting%26utm_campaign%3Dfree_ads
- Who it is for
- Anyone who wants to keep photos, videos, notes, passwords and 2FA codes private on an Android phone, behind an ordinary-looking calculator.
- Problem it solves
- Private photos, passwords and chats on a phone are exposed the moment someone picks it up or looks at the home screen. A normal vault app is easy to spot and ask about.
- The solution
- Lock It looks and works like a calculator. Type your own secret equation and press = and it opens a private vault with encrypted photos and videos, notes, passwords, 2FA codes, and private chat and calls.
- What makes it unique
- It is a real, working calculator that does real math, so the disguise holds up, and it combines a vault, password and 2FA manager and invite-only messaging in one app with AES-256 encryption on the phone.
Features
Working calculator disguise
It does real math; your secret equation plus = opens the vault.
Encrypted photo and video vault
Photos and videos are sealed on the phone with AES-256.
Passwords and 2FA codes
Store passwords and 2FA keys with codes that refresh every 30 seconds.
Private messages and calls
Chat and call only people you invite by key or QR code.
Details
- Platforms
- Android
- Pricing
- Freemium
- Built for
Anyone who wants to keep photos, videos, notes, passwords and 2FA codes private on an Android phone, behind an ordinary-looking calculator.
- Building since
2026
Technology
Lock It: Calculator Vault product screenshot
1 / 4Website performance
Recorded mobile lab measurements and finalized weekly standings from IndieTools Speed.
100ExcellentMobile Lighthouse
Measured · UTC
- Load time
- 429 ms
- FCP
- 767 ms
- LCP
- 767 ms
- CLS
- 0.022
- TTFB
- 1 ms
- TBT
- 0 ms
- Speed index
- 767 ms
These stored lab observations describe controlled test runs. They are not real-user Core Web Vitals or a guarantee of search rankings. Weekly standings below remain attached to their finalized edition.
- Overall rank
- Not finalized
- Best overall rank
- Not finalized
- 0 top 10 finishes
- Best category rank
- Not finalized
- 0 category wins
- Latest change
- 119 ms slower
- No finalized score yet
Method: psi-mobile-two-sample-mean-v1 · 2 samples per reading. Only readings with the same recorded method and sample count share a chart. Lab results can vary between runs.
Website performance history
Inspect every successful mobile Lighthouse lab measurement by metric and date range.
Range
Metric
Latest score
100 / 100
Higher is better
2 measurements
Use the left and right arrow keys to inspect measurements. Use Home or End to jump to the first or last measurement. Press Escape to dismiss the chart tooltip.
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