Secret Folder - Password Lock
by Tung Nguyen
- Utilities
- Paid
- Zombie
- Rating
- 0.0
- 0 ratings · Brunei storefront
- Last update
- Mar 9, 2020
- Version 1.5
- Size
- 26 MB
- Category
- Utilities
- Tracked since
- Oct 10, 2026
Estimated revenue
A model estimate with a likely range, not a reported figure.
No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.
How this estimate is made
Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.
Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.
Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.
Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.
Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.
Full methodScreenshots
As shown on the App Store listing.
About this app
Text from the App Store listing.
Hide your photos and videos in a secret folder protected with password.
- Import content from your device's camera roll.
- Take a picture or capture a video, it's PRIVATE.
- Create and manage your albums.
- Decoy password: setup some fake photos as a second defense.
- Export content to your phone
- Create secret notes for things to remember like link, text or contact.
- Disguise your app as a calculator
Enjoy watching your videos with full privacy and security.
What’s new
Release notes for the latest version, as written by the developer.
- Add a (optional) Calculator disguise
Rank history
Daily position in the Liberia charts. #1 is at the top.
- Best rank
- #5
- Current rank
- #6
- Days charting
- 7 of 7
On the charts today
Small & simple score
How realistic it is for a small team to build something like this.
96/100
Not flagged as small & simple
- Developer size100% · 25
Developer: 1 app on the charts
- Audience size– · 20
No data, weight redistributed
- App size100% · 10
Size: 26 MB
- Price model100% · 15
Price model: paid
- Demand proof90% · 30
Best rank #5, 9 countries
An indicator, not a fact. We can't see team size. Calculated Oct 24, 2026 · method i2
How the score worksVersion history
- 1.5LatestReleased Mar 9, 2020