Password Saver- Password Manager (One Key Android) is a native Android application that stores logins, card details and other sensitive records in an encrypted vault held entirely on the device, unlocked by a single master password. It is aimed at Android users and app developers who want offline credential storage without a cloud account, and at buyers looking for a ready-made codebase they can rebrand or extend. The build targets SDK 36 and includes declared support for Android 16, so it sits at the current end of the platform range rather than trailing it.
The product is sold on ThemeForest under the Android category for $21. The vendor has not disclosed a sales figure, so there is no purchase history to weigh up; the assessment below rests on the feature set and platform declarations in the listing. The author is not named in the source data.
What Password Saver- Password Manager (One Key Android) actually does
The organising idea is that nothing leaves the handset. There is no account, no sync service and no network permission required for the core function, which removes an entire class of risk that cloud-based managers carry. If a breach happens elsewhere, this vault is not in the blast radius. The trade-off is equally clear: lose the phone without a backup and the data is gone.
Encryption is handled with AES-256, the same symmetric standard used across the password-management category. Entries are unlocked by one master password, and the app supports auto-lock when the screen switches off, which limits how long an unattended device stays open. Screenshot blocking is included, so the vault contents cannot be captured by the usual hardware-key combination or a screen recorder.
Beyond plain logins, the app stores credit card details, e-banking credentials and website logins, and it can generate virtual cards from stored information. Records are colour-coded by card type for quick visual sorting, and the interface supports custom categories and custom fields, which matters more than it sounds: a fixed schema of “username, password, URL” fails the moment someone needs to record a PIN, a recovery code, a security-question answer or a software licence key.
Practical workflow features include auto-fill for passwords, search and sort across the vault, a password strength indicator, and a password generator for creating new credentials. A recycle bin holds deleted entries so they can be restored or permanently erased, which is a sensible middle ground between instant deletion and no recovery at all. Import and export run through CSV, and the app supports backup and restore, with a startup permission used to trigger automatic backup when the device reboots. A dark theme and animated transitions round out the presentation layer.
Two integrations sit outside the offline core. Firebase push notifications and Firebase Crashlytics analytics are wired in, which means the app is not strictly network-silent despite the offline positioning. That is a meaningful distinction for anyone evaluating it on privacy grounds, and the vendor does not spell out what data those services transmit. There is also a Google Play licence check permission, listed for in-app purchases.
Where this fits, and where it does not
The clearest fit is a developer or agency that needs a working Android password manager as a starting point. Because the source is delivered as a ThemeForest Android item, the value proposition is the assembled feature set — encryption, generator, auto-fill, recycle bin, CSV import/export, backup — rather than any single component. Rebuilding that from scratch is a multi-week job, so $21 is a low entry cost for a functional baseline that can be rebranded and shipped.
It also suits an individual who wants a local vault for a modest number of credentials and is comfortable managing their own backups. Someone who keeps a CSV export in cloud storage and refreshes it periodically gets most of the convenience of a hosted manager without the hosted part.
It is the wrong choice for anyone who needs credentials available across several devices. There is no sync layer described, and CSV export/import is a manual transfer, not a live one. A user with a phone, a tablet and a laptop who expects a new password to appear everywhere within seconds will find this workflow tedious and error-prone. The same applies to teams: there is no sharing, no role separation and no audit trail, so it cannot stand in for a business password manager.
It is also a poor fit for someone who wants zero network activity of any kind. Firebase notifications and analytics are present, and while they can presumably be stripped from the source, that is work the buyer has to do.
Strengths and limitations of Password Saver- Password Manager (One Key Android)
Strengths
- Genuinely offline core: no account, no sync service and no server dependency for storing or reading credentials.
- AES-256 encryption with a single master password, matching the standard used across the category.
- Custom categories and custom fields, so the vault is not limited to website logins.
- Password generator and strength indicator cover both creating and auditing credentials.
- Recycle bin with restore or permanent erase, which softens the risk of a mistaken deletion.
- CSV import/export plus backup and restore, including an auto-backup trigger on device restart.
- Auto-lock on screen-off and screenshot blocking address the two most common physical-access risks.
- Ad-free, which is unusual at this price point for a consumer Android utility.
- Target and compile SDK at 36 with declared Android 16 support, so it is not starting out behind current platform requirements.
Limitations
- Firebase push notifications and Crashlytics analytics are bundled in, which sits awkwardly against the “no internet access of any sort” framing. The vendor does not document what those services collect or whether they can be disabled without editing the source.
- No cross-device sync is described. Moving a vault between phones means exporting and importing CSV by hand.
- CSV is the only interchange format mentioned. There is no encrypted export option, so a plaintext CSV sitting in downloads or cloud storage undermines the encryption the app is built around.
- No sales count or rating is disclosed, so there is no independent signal about code quality, update frequency or how the vendor handles support requests.
- The listing does not state a minimum Android version, a database engine, or how the master password is derived and stretched before it feeds the AES-256 cipher. Key derivation is the part of a password manager most worth scrutinising, and it is simply absent from the description.
- No mention of biometric unlock, which most Android users now expect from a vault app.
- No stated policy on updates or how long the item will track new Android releases.
How it compares with other offline password managers
The category splits three ways. Hosted managers — the Bitwarden and 1Password model — win on sync, sharing, browser extensions and cross-platform clients, and they charge a recurring subscription for it. Open-source offline vaults such as KeePass derivatives win on auditability: the cryptography is public and reviewable, and the file format is portable between many clients. This product sits in a third position: a commercial, closed-source, single-platform app sold as a one-off purchase.
Against hosted services, the advantage is cost structure and data locality. There is no subscription, and the vault is not on someone else’s server. The disadvantage is everything sync buys: multi-device access, browser auto-fill on desktop, and recovery if a device is lost.
Against open-source offline vaults, the advantage is polish and packaging. The dark theme, animations, colour-coded cards, recycle bin and generator come assembled, and for a developer the source is editable. The disadvantage is that closed-source cryptography has to be taken on trust. A buyer cannot inspect the key derivation, and the vendor does not describe it.
Against other ThemeForest Android items in the same niche, the differentiators are the SDK 36 target and Android 16 declaration, the recycle bin, and the custom-field support. Those are the details worth comparing line by line, because most competing listings in this price band offer a similar headline feature list.
Frequently Asked Questions
Does Password Saver- Password Manager (One Key Android) work without an internet connection?
Yes for the core vault. Storing, reading, generating and auto-filling credentials requires no network access, and there is no account or sync service. However, the app bundles Firebase push notifications and Crashlytics analytics, so it is not completely silent on the network. The vendor does not document what those services transmit or whether they can be switched off.
Can the vault be moved to a new Android phone?
Yes, but manually. The app supports CSV export and import plus backup and restore, so a vault can be transferred by exporting on the old device and importing on the new one. There is no automatic sync between devices, so any password changed on one phone has to be re-exported and re-imported to keep the other in step.
What encryption does this password manager use?
The listing states AES-256, the standard symmetric cipher used across the password-management category. What the vendor does not state is how the master password is converted into an encryption key — the key derivation function, iteration count or salt handling. That detail matters more than the cipher choice, and it is absent from the product description.
Is this suitable for a business or a team?
No. There is no sharing, no user roles, no audit log and no central administration, all of which a business password manager needs. It is a single-user, single-device vault. Teams needing shared credentials with access controls should look at a hosted service built for that purpose rather than an offline Android app.
Verdict on Password Saver- Password Manager (One Key Android)
Buy it if you are an Android developer or agency who wants a functional, current-SDK password manager codebase to rebrand and extend, or an individual who wants a local encrypted vault and is willing to manage backups personally. The assembled feature set — AES-256, generator, auto-fill, recycle bin, custom fields, CSV interchange, auto-lock, screenshot blocking — is solid for $21, and the SDK 36 target means less platform catch-up work.
Do not buy it if you need credentials on more than one device, if you want team sharing or audit trails, or if you require open-source cryptography you can inspect. The undisclosed key derivation, the bundled Firebase services and the plaintext-only CSV export are the three points to resolve with the vendor before purchase, because none of them are answered in Password Saver- Password Manager (One Key Android)’s listing.
