Application Ledger: On-Device Apps vs Ledger Live
Application Ledger Basics: Coin Apps on the Device and Ledger Live
Application ledger can mean two different things in the Ledger world, and confusing them leads to most beginner worries. One is Ledger Live, the companion application installed on a computer or phone. The other is the set of small applications installed on the hardware wallet itself, usually called coin apps or on-device apps, such as the Bitcoin app or the Ethereum app. Each plays a separate role, and knowing which is which explains why an app can be deleted from a Ledger device without any coins disappearing.
Ledger Live is the interface people see: account lists, balances, send and receive screens. The on-device apps are what the secure element actually runs when it needs to understand a particular blockchain, derive its addresses and sign its transactions. Ledger Live installs, updates and removes these on-device apps, but it does not replace them.
This article walks through the two types of Ledger application, what a coin app does inside the device, how installing and removing apps works through Ledger Live, how device storage and firmware updates affect apps, and the safety checks that apply while managing them. Exact app names, storage capacities and supported networks change over time, so the official Ledger website remains the reference for current details.
The foundation of all of it is simple: funds are tied to the recovery phrase, not to any app. Apps on the device and the Ledger Live application are tools for using keys that the recovery phrase already defines.
Two Kinds of Ledger Application: Companion Software and Device Apps
Ledger Live runs on Windows, macOS, Linux, iOS and Android. It connects to the internet, reads blockchain data and offers features such as sending, receiving, swapping through partners and staking. It never holds private keys.
On-device apps run inside the Ledger hardware wallet, on the operating system of the device. They have no internet access and no view of balances. Their job is narrow: take a request from Ledger Live, derive the correct keys for one blockchain from the master seed, show transaction details on the device screen and produce a signature only after the owner confirms.
Why the Split Exists
Keeping blockchain logic in separate on-device apps lets the secure element run small, focused code for each network rather than one large program for everything. A flaw in one app is isolated from the others, and each app is reviewed and signed by Ledger before it can be installed. The benefit is a smaller attack surface. The trade-off is that users must install the right app before a given blockchain can be used, which adds a step that new owners sometimes miss.
How the Two Work Together During a Transfer
When sending bitcoin, for instance, Ledger Live builds the transaction and asks the device to open the Bitcoin app. The app parses the transaction, shows the destination and amount on the device screen, and waits for confirmation. If the Bitcoin app is not installed, Ledger Live cannot complete the transfer and prompts the user to install it. If the device is locked, nothing happens at all.
What a Coin App Does Inside the Ledger Device
Every Ledger device stores one master seed, created at setup and represented by the 24-word recovery phrase. From that seed, standard derivation methods produce a separate tree of keys for each blockchain. A coin app contains the rules for one of those trees: which derivation path to use, how addresses are formatted and how transactions for that network are structured and signed.
One App per Blockchain Family
Many networks have their own dedicated app. Some apps serve a whole family of compatible networks: the Ethereum app, for example, can sign for Ethereum and for a range of compatible networks, depending on what Ledger currently supports. Ledger Live shows which app each account needs when the account is added.
Tokens That Rely on a Parent App
Tokens issued on a blockchain usually do not get their own app. Tokens on Ethereum, for instance, are handled by the Ethereum app, and tokens on other networks are handled by the app for that network. Ledger Live displays these tokens under the parent account. Removing the parent app makes those tokens temporarily unusable for signing, but it does not affect the tokens themselves, which live on the blockchain.
Why Apps Do Not Store Coins
No coin is ever stored inside an app, or even inside the device. Coins exist as entries on their blockchains, and the device holds only the keys that can authorise moving them. A coin app is closer to a translator than a vault: it knows how to speak to one blockchain using keys derived from the seed.
Installing Coin Apps Through My Ledger in Ledger Live
App management happens in the device section of Ledger Live, labelled My Ledger in recent versions. It shows an app catalogue, the apps already installed on the device and an indicator of available space. Installation always passes through Ledger Live; Ledger does not distribute on-device apps through websites, files or messages.
- Open Ledger Live, connect the Ledger device by USB or Bluetooth and unlock it with its PIN on the device.
- Go to My Ledger and approve the request to allow the application to manage the device, on the device screen.
- Wait for the genuine check to finish, which confirms the hardware is authentic.
- Find the needed app in the catalogue and select install; Ledger Live downloads it from Ledger’s servers and transfers it to the device.
- If the app depends on another app, Ledger Live installs the dependency too or asks to do so.
- Go to Accounts, add an account for that blockchain, and let Ledger Live read the public address information from the device.
- Before receiving funds, display the receiving address on the device screen and check that it matches the one shown in Ledger Live.
The install step is fast and requires no recovery phrase, no password and no online account. Any process that asks for the 24 words to install or activate an app is fraudulent, without exception.
Developer Mode and Third-Party Apps
Ledger Live includes a developer setting that can show experimental apps. These may be less tested than standard apps and are intended for people who understand the networks involved. Leaving the setting off keeps the catalogue limited to Ledger’s mainstream apps, which suits most users.
Removing an App Without Losing the Funds
Deleting an on-device app is one of the most misunderstood operations. Users sometimes fear that uninstalling the Bitcoin app will erase their bitcoin. It does not. Uninstalling only removes the code that knows how to sign for that network from the device’s storage.
Where the Coins Really Live
Coins remain recorded on their blockchain at the same addresses. The keys for those addresses are still derivable from the master seed, which remains on the device and on the recovery sheet. Reinstalling the same app later regenerates exactly the same addresses, and the balance reappears in Ledger Live once the account is synced.
What Happens to Accounts in Ledger Live
Accounts in Ledger Live usually remain visible after the matching app is removed, because Ledger Live stores public account data separately. Balances can still be viewed. What cannot be done until the app is reinstalled is signing: sending, verifying a receiving address on the device or approving contract interactions. Removing an account from Ledger Live, likewise, does not affect funds; the account can be added again from the device.
When Removing Apps Is Useful
Removing unused apps frees storage, especially on models with less space, and keeps the device tidy. The trade-off is minor: an app that will be needed again has to be reinstalled before the next transaction on that network. The real danger lies elsewhere. Resetting the device to factory settings erases the seed itself, and in that case only the recovery phrase can restore access. A reset without a reliable backup means the funds are lost permanently.
Device Storage, App Dependencies and Firmware Updates
Each Ledger model has a fixed amount of storage for apps. Models with more space can hold many apps at once, while older or smaller models may require removing one app to make room for another. Ledger Live shows the remaining space and warns when an install will not fit. Because exact capacities and app sizes change with firmware and app versions, the device section of Ledger Live is the reliable place to check them.
Dependencies Between Apps
Some apps rely on another app being present, often the app of the parent network. Ledger Live handles these dependencies by installing the required app alongside, and it may warn that removing a parent app will also remove apps that depend on it. Again, no funds are affected; only signing capability is paused until the apps are reinstalled.
What Firmware Updates Do to Apps
Firmware is the device’s operating system. When Ledger Live performs a firmware update, apps may be removed during the process and then reinstalled automatically afterward. Some owners see an empty app list during an update and assume something went wrong. As long as the device was not reset and the PIN still unlocks it, the seed is intact. Before any firmware update, it is still wise to confirm that the recovery phrase is available and readable, since an interrupted update can in rare cases require restoring the device.
Firmware and app updates are delivered only through Ledger Live. An email or text message announcing an urgent update with a download link is a phishing attempt.
On-Device Apps Compared With the Ledger Live Application
The table below sets the two types of Ledger application against each other on qualitative criteria. It helps explain why each one can be removed and reinstalled without touching funds, as long as the recovery phrase is kept safe.
| Criterion | On-device coin apps | Ledger Live application |
|---|---|---|
| Where it runs | Inside the Ledger hardware wallet | On a computer or phone |
| Internet access | None | Yes, to read blockchains and reach services |
| Holds private keys | Uses keys derived from the seed inside the device, never exports them | Never |
| Main role | Derive addresses, display details, sign after confirmation | Show balances, build transactions, manage apps and firmware |
| Installed through | My Ledger in Ledger Live | ledger.com or the official store listings it links to |
| Effect of removing it | Signing for that network pauses; funds untouched | Account view disappears on that computer or phone; funds untouched |
| How to restore it | Reinstall from the catalogue in Ledger Live | Reinstall the application and reconnect the device |
The only element in the whole system that cannot be reinstalled is the seed. If the seed exists nowhere except the recovery sheet and the device, then losing both ends access for good.
Safety Checks While Managing Ledger Apps
App management involves connecting the device and approving requests, which is exactly the moment scammers try to imitate. Ledger has no account login or password that controls funds; access rests entirely on the device PIN and the 24-word recovery phrase. Every safe practice follows from that.
- The recovery phrase is entered only on the Ledger device, and only when restoring. It is never typed into Ledger Live, a website, a form or a chat, never photographed and never kept in cloud storage or notes apps.
- Ledger never asks for the recovery phrase, through support, email, social media, phone or any app.
- Devices bought from the official Ledger store or authorized resellers should arrive uninitialized; a pre-filled recovery sheet or a preset PIN signals a scam.
- The genuine check in My Ledger should pass before a device is used for funds.
- Every receiving address should be confirmed on the device screen, since malware can alter what a computer displays.
- Ledger Live should be downloaded only from ledger.com; fake Ledger Live apps in app stores and lookalike domains are used to steal recovery phrases.
- Fake update emails, fake airdrops promising free tokens and fake support agents writing in private messages or calling by phone are common scams.
- For dApps, token approvals and blind signing should be treated with care: if the device cannot show readable details, the transaction is being approved on trust.
Blind signing is a setting inside certain coin apps, such as the Ethereum app, that allows the device to sign contract data it cannot fully decode. Turning it on enables more decentralized finance interactions; it also removes the protection of reading what is being signed. Token approvals carry a related risk, since they can authorise a contract to move tokens in the future. Reviewing and revoking unused approvals through reputable tools, and keeping blind signing off by default, limits that exposure.
Questions & Answers:
Does uninstalling the Bitcoin app from a Ledger device delete bitcoin?
No. The bitcoin stays on the blockchain, and the keys stay derivable from the seed on the device. Reinstalling the Bitcoin app through Ledger Live restores the ability to sign, and the same addresses and balance appear again.
Why does Ledger Live say an app is required to add an account?
Ledger Live needs the on-device app to derive the public addresses for that blockchain. Without it, the device does not know how to produce addresses in the correct format, so the account cannot be added.
Can coin apps be installed on a Ledger without Ledger Live?
For ordinary users, Ledger Live is the supported way to install apps. Ledger does not distribute apps as files on websites or in messages, and any offer of a downloadable app file outside Ledger Live should be treated as a scam.
Do tokens need their own app on the device?
Usually not. Tokens are signed by the app of the network they are issued on, such as the Ethereum app for tokens on Ethereum. Ledger Live lists them under the parent account.
Why did all apps disappear after a firmware update?
Firmware updates can remove apps temporarily, and Ledger Live normally reinstalls them afterward. As long as the device was not reset and the original PIN still works, the seed is unchanged and reinstalling apps restores everything.
Is the device out of space a sign of a problem?
No. Storage for apps is limited and varies by model. Removing an unused app frees space and is safe for funds, since the app can be reinstalled whenever that network is needed again.
What is the difference between removing an app and resetting the device?
Removing an app deletes only that app’s code. Resetting the device erases the seed, PIN and all apps. After a reset, the only way back to the funds is restoring with the 24-word recovery phrase on the device.