KeePassDX vs Strongbox (2026): which should you pick?

Pick KeePassDX if

• Fits if you use Android and already keep a KeePass database
• Works for people who want a vault in a single local file

Look elsewhere if

• Skip it if you use an iPhone, Mac or Windows PC, as it is Android only
• Not for you if you want built-in sync, since you move the database file yourself
• Too light for teams, as there is no sharing or admin console
• Watch out: the $10 price comes from the Google Play listing, while the project's site mentions only tips and donations

Pick Strongbox if

• Fits if your passwords already live in a KeePass file and you want them on an iPhone and a Mac
• Works for keeping the file where you choose, including on the device and nowhere else

Look elsewhere if

• Skip it if you also use Windows or Android, as Strongbox itself is Apple only
• Not for you if you want sharing and sync handled for you, because storage is yours to arrange
• Tight if you need to know what's free before you start, since the App Store listing doesn't say what Pro holds back
• Pricey if you go lifetime, at $99.99, four years of the $24.99 yearly price
• Watch out: the code is published but isn't open source by the OSI definition, and yearly Pro is listed at both $24.99 and $19.99

KeePassDX

• Android only; there is no iPhone, Mac or Windows version from this project.
• There is no built-in sync service, so you move or sync the database file yourself.
• There is no team sharing or admin console, because the vault is a single local file.
• The $10 price comes from a Google Play listing seen on the app's page; the project's own site only mentions tips and donations.

Strongbox

• Strongbox runs on Apple devices only; using the same database elsewhere takes another KeePass-compatible app.
• The App Store listing does not itemize which features are limited to Pro. It describes the free version as a basic feature set.
• The source code is published for inspection, but the developers say it does not meet the OSI definition of open source and do not accept contributions.
• Prices here are from the US App Store; the listing says an upfront purchase option is also described on the Strongbox website.

KeePassDX

Local KeePass database

Opens .kdb and .kdbx files (versions 1 to 4) using AES, Twofish, ChaCha20 and Argon2, so it works with KeePass and KeePassXC files.

Passkeys and one-time codes

Stores passkeys and private keys in the vault and generates HOTP and TOTP codes for two-factor logins.

Autofill and Magikeyboard

Fills forms through Android autofill, or through a built-in keyboard that types entries into any field.

Biometric unlock

Unlock the database with fingerprint or face recognition instead of typing the master key every time.

Works offline

No internet connection is required. You choose where the database file is stored and backed up.

Password generator and attachments

Creates passwords and keeps file attachments inside the encrypted database, with custom icons for entries.

Strongbox

KeePass and Password Safe formats

Reads and writes the open KeePass (KDB and KDBX 3.1 and 4) and Password Safe 3 formats, so an existing database can be opened and stays portable to other apps.

Your choice of storage

Databases can live in iCloud, Dropbox, OneDrive or Google Drive, on a WebDAV or SFTP server, or only on the device, and cloud databases stay usable offline.

Face ID, Touch ID and YubiKey

Unlocks with Face ID or Touch ID, or with a PIN code that has a duress PIN option, and can protect databases with a YubiKey hardware token.

Passkeys and one-time codes

Supports passkeys and generates two-factor TOTP codes, which can be set up from a QR code or entered manually.

Password audit

Checks a database for weak passwords automatically and includes a 'Have I Been Pwned?' check for passwords found in breaches.

Browser AutoFill extension

The Strongbox AutoFill extension for Chrome, Chromium and Firefox fills usernames, passwords and authentication codes from your Strongbox databases.

KeePassDX

• Free$0

  Every main feature, including autofill, passkeys, OTP codes and the Magikeyboard, with no ads.

• Pro$10

  one-time, on Google Play

  A support version of the app that adds optional visual styles; security and encryption are the same as in the free app.

Strongbox

• Free$0

  The basic feature set of the freemium app. The App Store listing does not itemize which features are reserved for Pro.

• Strongbox Pro (Monthly)$2.99

  per month (US App Store in-app purchase)

  All the Pro features as an auto-renewing monthly subscription. A 3-monthly term is also mentioned in the listing.

• Strongbox Pro (Yearly)$24.99

  per year (US App Store in-app purchase)

  All the Pro features, billed yearly. The listing also shows a yearly entry at $19.99.

• Strongbox Pro (Lifetime)$99.99

  one-time (US App Store)

  A one-off purchase of Pro, either in the app or as the separate Strongbox Pro app, which supports Family Sharing.

• Strongbox Zero$99.99

  one-time (US App Store)

  A separate app for local-only databases, built without any of the networking code.

KeePassDX

No public discounts listed.

Strongbox

• Lifetime license

  Lifetime Pro for a one-off $99.99

  Strongbox Pro (Lifetime) costs $99.99 once, as an in-app purchase or as the separate Strongbox Pro app, which supports Family Sharing. A macOS-only build is listed at $44.99.

• Annual discount

  About 30% less on the yearly plan

  Strongbox Pro is $2.99 a month or $24.99 a year on the US App Store. Twelve monthly payments come to $35.88, so the yearly plan costs about 30% less.