Software Alternatives, Accelerators & Startups

Nextcloud VS CypherKeep

Compare Nextcloud VS CypherKeep and see what are their differences

Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Nextcloud logo Nextcloud

With Nextcloud enterprises host their own secure cloud solution for storage, collaboration & communication from any device, anywhere.

CypherKeep logo CypherKeep

Zero-cloud AES-256 vault for API keys, seeds & secrets
  • Nextcloud Landing page
    Landing page //
    2023-07-23
  • CypherKeep
    Image date //
    2026-05-12
  • CypherKeep
    Image date //
    2026-05-12
  • CypherKeep
    Image date //
    2026-05-12
  • CypherKeep
    Image date //
    2026-05-12
  • CypherKeep
    Image date //
    2026-05-12

CypherKeep is a native macOS credential manager built for developers and security professionals.

Store API keys, seed phrases, and sensitive notes โ€” all encrypted locally with AES-256-GCM. No cloud, no accounts, no breach surface.

Key features: - Live API key testing โ€” auto-detects provider, shows green/yellow/red status in real time - BIP39/SLIP39 seed phrase validation - Argon2id key derivation (OWASP recommended) - Touch ID unlock + Apple Keychain integration - Clipboard auto-clear after copy - Encrypted full-text search - Built with CryptoKit + SQLCipher

Nextcloud

$ Details
Platforms
-
Release Date
-
Startup details
Country
Germany

CypherKeep

Pricing URL
-
$ Details
paid $19.99 / One-off
Platforms
macOS 13.0+
Release Date
2026 May
Startup details
Country
Ukraine
City
Lviv
Founder(s)
Kyrylo Kovalin
Employees
1 - 9

Nextcloud features and specs

  • Open Source
    Nextcloud is open source, meaning the source code is available for anyone to inspect, modify, and enhance. This promotes transparency and community contributions.
  • Privacy and Control
    Users have complete control over their data since Nextcloud can be self-hosted. This mitigates privacy concerns associated with third-party cloud services.
  • Extensibility
    Nextcloud offers a wide range of apps and plugins that can extend its functionality, such as calendar, contacts, office, and media apps.
  • Collaboration Tools
    Nextcloud includes integrated solutions for file sharing, collaborative editing, and communication, which are useful for both personal and enterprise use.
  • Security Features
    Nextcloud provides robust security features like end-to-end encryption, two-factor authentication, and regular security updates.

Possible disadvantages of Nextcloud

  • Setup Complexity
    Setting up and maintaining a Nextcloud instance can be technically challenging, especially for users without a background in server management.
  • Performance Issues
    Depending on the hardware and configuration, Nextcloud might experience performance issues, particularly under heavy load or with extensive use of additional apps.
  • Resource Intensive
    Nextcloud can be resource-intensive in terms of CPU, memory, and storage, especially when additional features and apps are enabled.
  • Dependency Management
    Managing dependencies and ensuring compatibility with other installed software can be cumbersome, requiring regular updates and maintenance.
  • Limited Official Support
    While there is a strong community, official support can be limited or costly, which may be a disadvantage for enterprise environments requiring reliable assistance.

CypherKeep features and specs

  • Encryption
    AES-256-GCM + Argon2id
  • Storage
    Local only, zero cloud
  • API Key Testing
    12 providers, live status
  • Seed Phrases
    BIP39/SLIP39 validation
  • Authentication
    Touch ID + Master Password
  • Clipboard
    Auto-clear after copy
  • Database
    SQLCipher encrypted

Analysis of CypherKeep

Overall verdict

  • I don't have verified, up-to-date information about CypherKeep (cypherkeep.com) to make a reliable assessment of its quality, security, or legitimacy. Before using any cryptocurrency-related service, especially one involving key storage or asset management, it's essential to conduct thorough independent research.

Why this product is good

  • I lack specific, verified data about this product/service in my training data
  • Crypto-related services carry high risk if unvetted, making accurate verification critical
  • Company details, reputation, and security practices may have changed or may not be well-documented publicly

Recommended for

  • Users should independently verify company registration, team credentials, and security audits
  • Check third-party reviews on platforms like Trustpilot, Reddit, or crypto-specific forums
  • Look for transparency about custody practices, insurance, and regulatory compliance
  • Consult recent news sources for any security incidents or user complaints
  • Consider starting with small amounts if testing the service, and use additional security measures like hardware wallets for significant holdings

Nextcloud videos

Here are 5 Reasons I โค๏ธ Nextcloud | TLG

More videos:

  • Review - Pros and Cons of NextCloud
  • Review - Nextcloud is AWESOME... but?

CypherKeep videos

Short preview

Category Popularity

0-100% (relative to Nextcloud and CypherKeep)
Cloud Storage
100 100%
0% 0
Mac Tools
0 0%
100% 100
File Sharing
100 100%
0% 0
Security
0 0%
100% 100

Questions & Answers

As answered by people managing Nextcloud and CypherKeep.

How would you describe the primary audience of your product?

CypherKeep's answer:

Developers managing multiple API keys across projects, crypto users storing seed phrases and wallet credentials, security professionals who need air-gapped credential storage on macOS.

Which are the primary technologies used for building your product?

CypherKeep's answer:

Swift 5.9, SwiftUI, Apple CryptoKit (AES-256-GCM), Argon2id, SQLCipher, Apple Keychain Services, LocalAuthentication (Touch ID)

What makes your product unique?

CypherKeep's answer:

Live API key validation โ€” paste any key, CypherKeep auto-detects the provider and tests it in real time showing green/yellow/red status. No other credential manager does this. Combined with 100% local storage and BIP39 seed phrase validation, it's the only tool built specifically for developers and crypto users.

Why should a person choose your product over its competitors?

CypherKeep's answer:

1Password and Bitwarden sync to the cloud โ€” that's an attack surface. CypherKeep is 100% local, zero cloud, zero accounts, zero telemetry. It also understands what an API key actually is โ€” provider detection, live testing, seed phrase validation. Generic password managers don't.

Who are some of the biggest customers of your product?

CypherKeep's answer:

โ€” Launched May 2026, early adopters only at this stage

What's the story behind your product?

CypherKeep's answer:

I had API keys scattered across .env files, Notion, iCloud Notes, and Slack โ€” one breach away from a cascade. Every existing manager either synced to the cloud or was too generic. So I built the tool I needed.

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Nextcloud and CypherKeep

Nextcloud Reviews

Top 10 Best Enterprise Instant Messaging Software [2026]
Nextcloud Talk is one of the best self-hosted on-premises audio/video and chat communication services. It provides a cutting-edge on-premises content collaboration platform with real-time voice, video chat, and groupware on mobile, desktop, and the web.
Source: www.contus.com
12 Best Self-hosted Chat Platforms For Team Communication
Below is a curated list of the 12 best self-hosted messaging apps like MirrorFly, Mattermost, Zulio, Nextcloud, and Rocket.chat that offer unique collaboration features and lets you take full control of your data.
Best Cloud Storage Services for Linux
Another general tip is โ€“ if you can, self-host your data. Use Nextcloud and/or Cryptomator. You will have the most control over your data this way. Youโ€™ll also have the most features, tools, extensions, integrations, etc. with Nextcloud. You wonโ€™t be limited to some features based on the plan youโ€™re paying for. However, thereโ€™s a learning curve for this. Youโ€™ll need to know...
Source: linuxstans.com
20+ Picasa Alternatives And Best Similar Apps Like Picasa 2022
Nextcloud is far more than a photo hosting application and the best Picasa alternative, but its photo management stands out thanks to phone apps you can use for opt-in synchronization. Instead of sending your pictures to Google Photos or Apple cloud storage, you can send them to your Nextcloud install.
6 cPanel Alternatives
Nextcloud was forked from ownCloud in 2016. They share mostly the same native features and workflow. However, Nextcloud is more popular for a few notable reasons.

CypherKeep Reviews

We have no reviews of CypherKeep yet.
Be the first one to post

Social recommendations and mentions

Based on our record, Nextcloud seems to be more popular. It has been mentiond 304 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Nextcloud mentions (304)

  • My personal journey learning about prompt-injections and how that influences my use of AI (agents)
    So what about having a stricter separation between data and instructions? Let's look at that using, for example, the Nextcloud AI assistant. Nextcloud-Hub is a self-hosted file storage platform with collaboration tools. It has also an AI Assistant App and guess what, it can summarize text (and much more). I've set it all up with the OpenAI API using the gpt-5-chat-latest model. When I click on any file and... - Source: dev.to / 4 months ago
  • Nextcloud vs ownCloud: Which File Server to Use?
    Nextcloud and ownCloud share a common ancestor. In 2016, Nextcloud's founder (Frank Karlitschek, who also founded ownCloud) forked ownCloud to create Nextcloud, taking most of the developer community with him. Since then, the projects have diverged significantly. - Source: dev.to / 5 months ago
  • Ask HN: What's your favorite self-hosted application?
    Previously Nextcloud [1], currently bewCloud [2]. Full disclosure: I created bewCloud as a simpler, faster, and modern alternative to Nextcloud. They've allowed me to get my Files (including Photos), Calendars, Contacts, and RSS feeds off of Big Tech. [1] https://nextcloud.com [2] https://bewcloud.com. - Source: Hacker News / 7 months ago
  • Apple has locked my Apple ID, and I have no recourse. A plea for help
    I run a nextcloud [1] instance and use it for contacts, calendars, and reminders 1. https://nextcloud.com. - Source: Hacker News / 8 months ago
  • Europe just dropped a cloud rulebook (and itโ€™s actually good)
    This is the same energy behind projects like Gaia-X, Nextcloud, and the open-source revival happening across the continent. Itโ€™s not nostalgia for on-prem servers itโ€™s a philosophy: control what you depend on. - Source: dev.to / 9 months ago
View more

CypherKeep mentions (0)

We have not tracked any mentions of CypherKeep yet. Tracking of CypherKeep recommendations started around May 2026.

What are some alternatives?

When comparing Nextcloud and CypherKeep, you can also consider the following products

Dropbox - Online Sync and File Sharing

1Password - 1Password can create strong, unique passwords for you, remember them, and restore them, all directly in your web browser.

Google Drive - Access and sync your files anywhere

bitwarden - Bitwarden is a free and open source password management solution for individuals, teams, and business organizations.

Mega - Secure File Storage and collaboration

iCloud Keychain - Keychain is the password management system in macOS, developed by Apple.