# How many SafeKeys do I need?

## SafeKey One

In case you’re choosing to use the SafeKey One to help you secure your logins to your online accounts, then 1 device is already enough to get you started.

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We always recommend to **get at least 1 backup SafeKey device** in case something goes wrong with your primary SafeKey.
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## SafeKey Pro

For SafeKey Pro users it’s a bit different. A lot depends on the data protection plans you want to create and how many shareholders you want to have for it.

In general there are **two types of data protection plans** which both need a different approach:

* [Encrypted backups](https://docs.safekey.be/use-cases/decentralized-and-encrypted-backups)
* [Inheritance plans](https://docs.safekey.be/use-cases/digital-inheritance)

### Only you as a shareholder

If you’re going to create **personal backup plans** with yourself as the only person that needs access, then 1 SafeKey Pro is enough to get started.

But, as always, we advice you to **get at least 1 extra SafeKey Pro as** [**backup device**](https://docs.safekey.be/user-guides/backups) in case your primary SafeKey gets lost or damaged.

### Multiple shareholders and beneficiaries

If you’re going to create **backup plans with multiple shareholders** or want to create an **inheritance plan with multiple beneficiaries**, then you’ll need a few more SafeKey Pros.

**Rule of thumb is to have at least 1 SafeKey Pro device per shareholder, but in the case of setting up an inheritance plan, you as the Plan Owner don't need to have your own SafeKey, only your beneficiaries do.**

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Preferable you use **multiple extra SafeKey Pro backup devices**, depending on the situation and value of the data you want to secure.
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**Security Tip**: the more shares and SafeKey Pros you use to decentralize your data backups and inheritances, the safer, more secure and the better protected your data becomes.
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## SafeKey Mobile

For users opting for **SafeKey Mobile**, the number of mobile devices required depends on how many **beneficiaries** (specifically **shareholders** for backup plans and **heirs** for inheritance plans) are involved in your protection plan.

### Personal Backup Plans (You as the Sole Shareholder)

If you're using SafeKey Mobile for a personal backup plan where you're the sole **shareholder**, you'll need to install the **SafeKey Mobile app** on your phone. This will allow you to securely store your encrypted shares on your mobile device.

You can also choose to keep a backup of your shares in the **Inheriti® Vault**, ensuring recovery in case your phone is lost or reset.

### Multiple Shareholders and Heirs

For plans involving multiple **shareholders** (in backup plans) or **heirs** (in inheritance plans), each **beneficiary** will need to install the **SafeKey Mobile app** on their own phone. This ensures that each person’s shares are securely stored on their individual mobile device.

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**Backup Tip**: Each mobile user can also opt to back up their shares in the **Inheriti® Vault**, providing an additional layer of security if their phone is lost or compromised.
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