Confidant App is a free, open source messaging and account program for people who want their conversations and backups kept away from central servers. It sits in the Nodes & Blockchain Clients category, but its focus is private communication rather than running a blockchain node. The latest version is V1.4.3.
Read this before installing: the project has had no code updates since May 18, 2020, so it is more than five years old and no longer actively maintained. That does not make the software unusable, but bugs and compatibility problems will not be fixed upstream. The project's materials suggest Windows builds may exist, so check the GitHub Releases page to confirm one is published. It suits readers who are curious about the design, not those who need an actively supported tool.
How a Blockchain-Like Account System Works
A blockchain stores records in blocks, and each block refers back to the one before it through a cryptographic fingerprint called a hash. Change an old record and the fingerprints stop matching, which makes tampering visible. Confidant App borrows this idea for its account system rather than running a public network.
In practice, the account keeps a linked history of actions on your device or within the group that uses it. The benefit is a record that is easier to audit than an ordinary database that anyone with access can edit silently. The trade-off is complexity: you rely on the app's logic, and there is no large public network of validators checking the chain for you.
If you are new to the idea, think of a notebook where each page includes a stamp of the previous page. You can read the notebook at any time, and erasing one page exposes the change. That is the core intuition behind blockchain-like designs, and it explains why the term appears in this app's description.
Who Confidant App Suits: Practical Use Cases
Confidant App fits people who want more control over where their messages and backups live. A small team that shares sensitive notes might use encrypted messaging for day-to-day conversations and peer-to-peer transfers for documents they do not want to upload to a public cloud.
A second scenario is a personal backup plan. Someone who keeps important files on a home computer could use on-premise storage as the main copy and a private cloud backup as an emergency fallback. That layered approach avoids relying on a single company's servers.
Developers and students may also find the app useful for study. Reading how an account system, encrypted messaging and private storage fit together can teach more than a polished consumer product. Anyone who wants a ready-to-use chat app with active support, however, will find this project less suitable.
Why Serverless Storage Matters for Privacy
Most messaging services route messages and files through servers operated by a company. That makes the company a point where content, metadata or access logs could be exposed, whether through a breach, a legal request or an internal mistake.
A design without a central server changes the picture. Messages and files move between devices, and storage stays under your control. Metadata still exists in some form on any network, so privacy is never absolute, but fewer intermediaries means fewer places to watch.
The trade-off is responsibility. When you own the storage, you also own the backups. Losing a device without a recovery copy can mean losing data for good. That is why the emergency backup option matters: it turns a private design into something you can recover from.
Key features
Blockchain-Like Account System
Encrypted Messaging
On-Premise Storage and Private Cloud Backups
Peer-to-Peer File Transfer
Account Creation and Controlled Distribution
Private Storage Without a Server
How to install Confidant App Android on Windows
- 1
Find the official source
Open the project's GitHub repository at github.com/qlcchain/confidant-app_android and go to the Releases page. Download only from the official website or the GitHub Releases page, and avoid copies offered on forums or file-sharing sites.
- 2
Confirm a Windows build is listed
Check whether the latest release lists a Windows package. If only an Android file appears, the program cannot be installed on Windows from that release, and you should not try to force it.
- 3
Verify the file
Compare the SHA-256 checksum published with the release against your download. In PowerShell, run Get-FileHash followed by the file path and match the output. If a signature is provided instead, verify it before running the file.
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Install and launch
Run the installer or extract the archive into a folder you control, then start the program. Because development stopped in 2020, expect the app to behave as it did at release, and keep a separate backup of any data before testing it.
How to use Confidant App Android
Start with a short plan: decide which device will hold the main copy and which will serve as the emergency backup before you create an account.
- Install the app on the device you plan to use for daily messaging.
- Create your account and set a strong, unique password.
- Write down any recovery details the app shows and store them offline.
- Add a contact and confirm their identity before sending anything sensitive.
- Send an encrypted message in a one-to-one chat.
- Transfer a file peer-to-peer while both devices are online.
- Set up on-premise storage, then add the private cloud backup for emergencies.
- Delete sensitive items when they are no longer needed, and check that the local copy is gone.
Test the restore process once with a harmless file so you know the backup works before you rely on it.
Pros & cons
- Free and open source, so the code can be inspected by anyone
- Built around encrypted messaging and private, local storage
- Core design does not depend on a central server
- Includes peer-to-peer file transfer and private backup options
- No code updates since May 2020, so known and future bugs may remain unfixed
- Windows availability depends on a build that must be checked before installing
- Focused on private messaging and storage, not on the wider feature set of mainstream apps
- Using it well requires planning your own backups
Is Confidant App Android safe?
Confidant App has not received code updates since May 18, 2020, so treat it as unmaintained and weigh that before trusting it with private messages or backups. Download only from the official website or the project's GitHub Releases page, and avoid copies on forums or file-sharing sites. Compare the SHA-256 checksum of your file with the one published by the developers, or verify a signature if one is offered. Never type a recovery phrase, password or account key into a third-party website or into a prompt you did not expect. Keep your antivirus active; if it flags the file, check the release page rather than turning protection off. Confirm the latest version on the official website before installing.
- Official source only. Download from github.com/qlcchain/confidant-app_android. Ignore ads and lookalike domains.
- Check the SHA-256. Compare the installer hash with the value the developer publishes before running it.
- Never share your seed phrase. No developer, support agent or website — including CryptApps — will ever ask for it.
Alternatives
Most programs in the Nodes & Blockchain Clients category, such as Geth, Bitcoin Core, Nethermind and Agave, run full or validator nodes that sync public blockchains. These typically demand significant disk space, bandwidth and uptime. Confidant App is different: it is a messaging and account app built around a blockchain-like design and private storage, not a node that validates transactions on a public network. Choose it for private communication and personal backups; choose a node client if your goal is to run infrastructure for a network.
Specifications
- Price
- Free
- Type
- Open source
- License
- —
- Latest version
- V1.4.3
- Last update
- 18 May 2020
- Windows support
- Likely (builds for Windows; check releases)
- Source code
- github.com/qlcchain/confidant-app_android
Frequently asked questions
The project's materials suggest Windows builds may exist, but the codebase is centered on Android. Check the GitHub Releases page for a Windows package before downloading. If none is listed, the app is not available for Windows from that source, and you should look for another option for your desktop.
Its code is open source, which lets others review it, but it has not been updated since May 2020, so unpatched issues may exist. Use the project's own release page, check the checksum before running any file, and avoid storing critical secrets in it until you have reviewed the code or chosen a maintained alternative.
Yes, the program is free and open source, and there is no price for the app itself. Your costs may come from storage hardware or from a private cloud service you choose for emergency backups.
No. The project's design emphasizes operating without a central server, with storage kept on your own devices. A private cloud option is available for emergency backups if you want an additional copy outside your hardware.
Bitcoin Core is a node client that validates the Bitcoin network. Confidant App is a messaging and account program with encrypted communication and private storage. They solve different problems, so you would not use one as a substitute for the other.
You can run versions that already work, but the project has had no code updates since 2020. Bugs, compatibility problems and security issues found later will not be fixed upstream. If you need reliable messaging today, consider a maintained alternative.
Verdict
Confidant App is an interesting, free, open source program for readers who want to study a blockchain-like account design, encrypted messaging and serverless storage. Because development stopped in May 2020, it is better suited to learning, testing or code review than to daily use with sensitive information. If you need active support, look at maintained messaging apps or node clients. For the latest version, check the official website.