● LOCKED · Android app · Kotlin

True File Locker reviews

Reviewers include an IT department, a finance professional and a family sharing one tablet. 9 people now trust it with their most private files, and they keep mentioning the same thing: real encryption that is still easy to use.

Get it on Google Play ↗★★★★★★★★★★4.6 average
THE DIFFERENCE, IN ONE REVIEW
“The only free one that offers actual encryption rather than just hiding files behind a PIN.”
Patrick Owusu · Accra, Ghana
AES-256-GCMencryption
In memorydecryption only
0network calls
9reviews · 4.6
“big difference”Patrick

Not hidden. Encrypted.

Most free lockers hide your files behind a PIN. This one encrypts them, so there is nothing readable left on the phone and no server to breach.

A TYPICAL FREE LOCKER
What it does to a fileHides it behind a PIN
The original fileStays where it was
When you open a fileDecrypted copy left on disk
Network accessOften uploads to a server
TRUE FILE LOCKER
What it does to a fileEncrypts it with AES-256-GCM
The original fileOverwritten with random data, then deleted
When you open a fileDecrypted in memory only
Network accessNo internet permission at all
all 9 reviews

In their own words.

Every moderated review, in full.

Recommended by my IT department

“Our company IT team recommended True File Locker for employees who need to store sensitive files on personal devices. Easy to set up and the access controls are exactly right.”

Florian BucherFlorian BucherBasel, Switzerland

Keeps my private photos completely safe

“Family photos and personal documents are now completely safe. The app is lightweight and runs well on my mid-range phone without draining the battery.”

Zainab MusaZainab MusaKano, Nigeria

Solid encryption, good UX

“Most security apps sacrifice usability. True File Locker manages to be both secure and easy to use. The vault interface is intuitive and the encryption is properly implemented.”

Chris AdkinsChris AdkinsAustin, USA

Essential for anyone with sensitive data

“I work in finance and need to protect client documents on my phone. True File Locker handles this perfectly. The encryption documentation reassured me that this is done properly.”

Elena MorozovaElena MorozovaMoscow, Russia

Best free file locker on Google Play

“Tested several apps before settling on True File Locker. It's the only free one that offers actual encryption rather than just hiding files behind a PIN. Big difference.”

Patrick OwusuPatrick OwusuAccra, Ghana

Password vault works perfectly

“The file vault feature is exactly what I needed for sensitive client documents. The app never crashed in 6 months of use and unlocks instantly. Very impressed.”

Alicia HerreraAlicia HerreraGuadalajara, Mexico

Protects my business files on shared devices

“Use True File Locker on a tablet that multiple family members share. My work files are fully encrypted and inaccessible without my PIN. Simple to use and very reliable.”

Kenji WatanabeKenji WatanabeOsaka, Japan

Great for privacy-conscious users

“Solid tool with good documentation. Appreciate that the encryption approach is explained transparently rather than hidden behind vague marketing terms.”

Sara LindqvistSara LindqvistUppsala, Sweden

Simple, effective file encryption

“Does exactly what it says. Encrypted my sensitive documents quickly and the guides explaining the encryption standards are genuinely educational.”

Dmitri VolkovDmitri VolkovRiga, Latvia
“explained transparently”Sara · “genuinely educational”Dmitri

No vague marketing terms. Here is how it works.

Full technical details →
AES-256-GCMFiles are encrypted before storage. Encryption and decryption happen in memory.
BiometricPrompt + KeystoreFingerprint or face unlock, with a PIN fallback. The vault key lives in the Android Keystore.
Calculator disguiseThe app can look like a working calculator. A secret PIN opens the vault.
Secure deletionImported originals are overwritten with random data before they are deleted.
Encrypted photo vaultThumbnails are generated in memory and never cached to disk.
Encrypted notesPasswords and PINs stored in the same protected container.
No INTERNET permissionNo network calls, so nothing can leave the device.
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