# OnlyKey review (2026): is it worth $65.99?

> USB hardware password manager and two-factor security key

Checked Nov 13, 2026 · graded Nov 13, 2026 by ToolGPA.

OnlyKey is a USB hardware device that combines a password manager, a two-factor security key and a file encryption token. You unlock it with a PIN typed on the device itself, and it types usernames and passwords into the computer it is plugged into. The vendor describes it as open source.

- **Category:** Password Managers
- **Made by:** OnlyKey
- **Website:** https://onlykey.io
- **Runs on:** macOS, Windows, Linux
- **Who should skip it:** Skip it if you lose things: without a backup key your passwords are gone, hence the two-pack.
- **Facts last checked:** Nov 13, 2026

## Pricing

As of Nov 13, 2026, OnlyKey is a paid product, starting at $65.99 one-time (single device).

- **Pricing model:** Paid
- **Free plan:** None.
- **Free trial:** None listed.

| Plan | Price | What you get |
| --- | --- | --- |
| OnlyKey | $65.99 one-time | One device. Shown on the product page at $65.99 against a crossed-out $69.99, with no end date given. |
| OnlyKey DUO | $65.99 one-time | One device with both USB-A and USB-C connectors; also supports SSH and OpenPGP. |
| Two OnlyKey bundle | $99.99 one-time | Two devices, sold so that you have a backup. |

Read from https://onlykey.io/products/onlykey-color-secure-password-manager-and-2-factor-token-u2f-yubikey-otp-google-auth-make-password-hacking-obsolete on Nov 13, 2026. Prices change, so confirm with OnlyKey before buying.

## Key features

- **Hardware password manager:** Plugged into a computer, it types the username and password at the press of a button, so credentials need no browser extension or app.
- **PIN entered on the device:** The unlock PIN is typed on the key itself, and the vendor says all data is securely erased after 10 failed attempts.
- **Two-factor authentication:** Supports FIDO2 and U2F, Yubico OTP, TOTP and challenge-response methods.
- **Encryption and SSH:** Acts as a file and message encryption token; the DUO model is listed for SSH and OpenPGP use as well.
- **Rugged build:** The vendor lists a waterproof, tamper-resistant case rated IP68 and MIL-STD-810G.
- **Works on several operating systems:** The vendor lists Windows, macOS, Linux and Chromebook support.

## Good for

- People who want a password manager that works without installed software
- Users who want a hardware security key and password storage in one device
- Those who prefer a one-time device purchase to a subscription

## Worth knowing

- It is a physical device: losing it without a backup means relying on a second key, which is why a two-pack is sold.
- Store prices are shown in the visitor's local currency; the dollar figures were read from the US version of the pages.
- No sync service, mobile app or browser extension is listed on the product pages.
- Shipping is extra and calculated at checkout; the vendor also points US buyers to Amazon.

## ToolGPA grades

**GPA: 2.0 out of 4**, graded Nov 13, 2026. OnlyKey is a USB device with a PIN pad that stores passwords and doubles as a two-factor key, for $65.99 one-time. It has no sync, no phone app and no browser extension, and losing it without a second key leaves a gap.

- **Value for money: B.** $65.99 one-time equals the category's middle one-time price, under two years of a $2.99 subscription.
- **Free plan and trial: F.** A physical device with no free plan and no trial.
- **Features: C.** Password storage, 2FA, SSH and encryption. No sync, no phone app and no browser extension.
- **Ease of use: B.** It works without installing software, which keeps setup short. No store rating on record.
- **Platforms and integrations: C.** Windows, Mac, Linux and Chromebook, computers only. No phone app or extension on the pages read.

These are ToolGPA's own grades. Graded from this listing, whose facts were read from OnlyKey's own pages on 13 November 2026. Not based on using the product, and shorter than our full reviews.

## Where it stands among password managers

- OnlyKey's GPA of 2.0 is higher than 2 of the 49 other password managers we grade, and level with 6.
- It stands best on ease of use (B, above 31 of 49) and worst on free plan and trial (F, above 0).

The category's chart of price against score: https://toolgpa.com/charts/password-managers

## Keep it, or make your own?

**Keep it.** To replace OnlyKey you would be making a password vault, the last thing anyone should make for themselves. That is not a weekend's work, with an AI app builder or without one. That makes this kind of software worth paying for, not this one in particular: 41 of the 49 other password managers grade higher. It costs $65.99, paid once. OnlyKey is open source, so there is a third way: take its code and run it yourself.

- You could not: A password vault, the last thing anyone should make for themselves.
- You could not: Apps for macOS, Windows and Linux that stay in step with each other.

A judgement by ToolGPA from this listing, by rules that are the same for every tool. Nothing was built to test it.

## Works with

Windows, macOS, Linux, Chromebook

**Tags:** Password manager, Open source, One-time purchase

## Alternatives

- [Mooltipass](https://toolgpa.com/tools/mooltipass): Open-source hardware device that stores and types your passwords. [Compare](https://toolgpa.com/compare/mooltipass-vs-onlykey)
- [KeePassXC](https://toolgpa.com/tools/keepassxc): Free, open-source offline password manager for desktop. [Compare](https://toolgpa.com/compare/keepassxc-vs-onlykey)
- [Bitwarden](https://toolgpa.com/tools/bitwarden): Open-source password manager with a free plan and self-hosting. [Compare](https://toolgpa.com/compare/bitwarden-vs-onlykey)
- [Passbolt](https://toolgpa.com/tools/passbolt): Open-source password manager for teams, self-hosted or cloud. [Compare](https://toolgpa.com/compare/onlykey-vs-passbolt)
- [1Password](https://toolgpa.com/tools/1password): Password manager for individuals, families and businesses. [Compare](https://toolgpa.com/compare/1password-vs-onlykey)

## Sources

The prices, plans, platforms and features above were read from these pages on Nov 13, 2026:

- https://onlykey.io/
- https://onlykey.io/products/onlykey-color-secure-password-manager-and-2-factor-token-u2f-yubikey-otp-google-auth-make-password-hacking-obsolete
- https://onlykey.io/products/onlykey-duo-dual-usb-c-and-usb-a-security-key
- https://onlykey.io/products/two-onlykey-bundle-always-have-a-backup

Page: https://toolgpa.com/tools/onlykey
Listed by ToolGPA (toolgpa.com).
