Software Alternatives, Accelerators & Startups

LinearB VS Cards-Control.app

Compare LinearB VS Cards-Control.app and see what are their differences

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LinearB logo LinearB

LinearB delivers software leaders the insights they need to make their engineering teams better through a real-time SaaS platform. Visibility into key metrics paired with automated improvement actions enables software leaders to deliver more.

Cards-Control.app logo Cards-Control.app

Your phone IS your business card
  • LinearB Landing page
    Landing page //
    2023-08-19
  • Cards-Control.app Emulation NFC
    Emulation NFC //
    2025-12-15
  • Cards-Control.app Partage par QR code
    Partage par QR code //
    2025-12-15
  • Cards-Control.app Multiprofil
    Multiprofil //
    2025-12-15
  • Cards-Control.app
    Image date //
    2025-12-15

Cards Control is a digital business card app that turns your Android phone into a native NFC card. Create professional profiles, share instantly via NFC tap, QR code or link, and scan paper cards with AI. Features include HCE emulation (no plastic tag needed), unlimited profiles, offline mode, and 20 languages. No monthly subscription - pay once, use forever.

Cards-Control.app

$ Details
freemium โ‚ฌ6 / Monthly (Version Pro)
Platforms
Android
Release Date
2025 December
Startup details
Country
France
Founder(s)
Jean Claude PASTOR
Employees
1 - 9

LinearB features and specs

  • Integration with Existing Tools
    LinearB integrates seamlessly with popular project management and communication tools like Jira, GitHub, Slack, and Bitbucket, making it easier to adopt without changing the existing workflow.
  • Real-time Metrics
    Provides real-time visibility into the software development lifecycle, allowing teams to gain insights and take immediate action to improve development processes.
  • Automated Analytics
    Automates the collection and analysis of data, reducing the manual effort required to gather metrics and allowing teams to focus on decision-making and improvements.
  • Workflow Optimization
    Offers features to identify bottlenecks and inefficiencies in the development process, enabling teams to streamline workflows and improve productivity.
  • Developer Metrics
    Includes metrics specifically for developers, such as code quality scores, pull request review times, and activity reports, to help individual contributors understand and enhance their performance.

Possible disadvantages of LinearB

  • Learning Curve
    Although the tool integrates well with other platforms, there is a learning curve associated with understanding and utilizing all of its features effectively.
  • Potential Overload of Metrics
    The extensive array of metrics and data presented can be overwhelming for teams not accustomed to such detailed analytics, potentially causing decision paralysis.
  • Cost
    The pricing structure might be expensive for small teams or startups, especially when compared to other simpler project management or analytics tools.
  • Dependency on Data Integration
    The effectiveness of LinearB largely depends on the quality and comprehensiveness of the data integrated from other tools. Inconsistent or incomplete data can hamper its utility.
  • Privacy Concerns
    Given the level of detail and access required, there might be concerns around data privacy and the handling of sensitive project information, especially in heavily regulated industries.

Cards-Control.app features and specs

  • Digital Business Cards
    Create professional, personal, or resume cards with custom photo, logo, and colors. Share via NFC, QR code, or direct link.
  • NFC Tap Sharing (HCE)
    Turn your phone into an NFC card. Tap to share your contact instantly - no app required on the receiver's end.
  • AI Card Scanner
    Scan paper or plastic business cards with AI. Automatic text extraction and one-click contact creation.
  • NFC Reader
    Read any NFC tag (NDEF, MIFARE, etc.). View full technical details and keep a history of all scans.
  • NFC Writer
    Write URLs, contacts, WiFi, text and more to NFC tags. 15+ pre-built templates. Save your favorites.
  • Unlimited Profiles
    Create multiple cards for different roles - business, freelance, personal. Switch instantly.
  • Offline Mode
    Access and share your cards without internet. Syncs automatically when connected.
  • vCard Export
    Export contacts in vCard format for universal compatibility with any device or CRM.
  • Multi-language
    Available in 20 languages. Built for global networking.
  • Cloud Sync
    Your cards sync across devices. Never lose your contacts again.
  • SMS Campaigns
    Send bulk SMS to your contacts directly from the dashboard. Track delivery and engagement.
  • Email Campaigns
    Create and send email campaigns to your network. Built-in templates and analytics
  • CRM Integration
    Connect to any CRM - HubSpot, Salesforce, Pipedrive, Zoho, and 5000+ tools via API. Push leads automatically
  • Team Management
    Manage your company's digital business cards from one dashboard. Create, edit, and distribute cards for all employees. Control branding, update info centrally, and track team networking activity.

Analysis of LinearB

Overall verdict

  • LinearB is generally considered a good tool for teams looking to improve their development workflows. It receives positive feedback for its ability to provide actionable insights and its user-friendly interface. However, as with any tool, its effectiveness can vary depending on the specific needs and context of the development team.

Why this product is good

  • LinearB is a tool that provides real-time insights into software development processes. It enhances productivity by offering metrics, workflow automation, and project visibility, which help in making data-driven decisions. The platform is designed to streamline development pipelines, ensuring teams can identify bottlenecks quickly and optimize their work processes.

Recommended for

    LinearB is recommended for software development teams, engineering managers, and project managers who want to improve visibility into their development processes, reduce cycle times, and boost overall productivity. It's particularly useful for teams that rely on agile methodologies and need to continuously monitor and improve their workflow efficiency.

Analysis of Cards-Control.app

Overall verdict

  • Insufficient verifiable information is available about Cards-Control.app to confirm its legitimacy, safety, or quality, so caution is advised before using it.

Why this product is good

  • The domain name suggests a card management or control service, but there is no widely recognized public track record, reviews, or established reputation for this specific site.
  • Legitimate financial or card-management tools typically have transparent company information, regulatory compliance details, and verifiable user reviews, which are not readily confirmed here.
  • Unfamiliar sites dealing with card control or payment-related services carry inherent risks including potential phishing, data harvesting, or fraud if not properly vetted.
  • Without clear information on the company behind it, security certifications, or customer support channels, it's difficult to assess trustworthiness.

Recommended for

  • Users should avoid entering sensitive card or payment information until the site's legitimacy is verified through independent research.
  • Those considering it should check for SSL certification, company registration details, third-party reviews, and regulatory compliance first.
  • Not recommended for anyone seeking a proven, well-established card management solution without first conducting thorough due diligence.
  • Best suited for cautious researchers or reviewers investigating the site rather than end-users ready to input financial data.

Category Popularity

0-100% (relative to LinearB and Cards-Control.app)
Data Dashboard
100 100%
0% 0
Digital Business Cards
0 0%
100% 100
Developer Tools
100 100%
0% 0
Contact Management
0 0%
100% 100

Questions & Answers

As answered by people managing LinearB and Cards-Control.app.

What's the story behind your product?

Cards-Control.app's answer:

Cards Control was born from a simple frustration: losing contacts after networking events because paper business cards end up forgotten in a drawer. After 25 years in industrial maintenance, I attended hundreds of conferences and trade shows. Every time, the same problem - exchanging paper cards, promising to "stay in touch," then never finding the card again. I looked at existing solutions. They all wanted to sell me a $50 plastic NFC card. But wait - my phone already has NFC built-in. Why do I need another piece of hardware? That's when I discovered Android's HCE (Host Card Emulation). Your phone can act as an NFC card natively. No plastic needed. So I built Cards Control: the first app that uses HCE to share your contact info with a simple tap. Add AI scanning for paper cards, unlimited profiles for your different roles, and a fair pricing model (no subscription trap), and you have an app that actually solves the problem. Launched December 2025. Solo founder. Bootstrapped. Built with Flutter, Firebase, and Claude Code

Why should a person choose your product over its competitors?

Cards-Control.app's answer:

No hardware required - Popl, Mobilo, and Linq want you to buy a $30-$80 plastic card. Cards Control uses your phone's native NFC. Zero hardware cost. No subscription trap - HiHello and Blinq charge $6-$15/month for premium features. We offer โ‚ฌ49/year or โ‚ฌ199 lifetime. Pay once, own it forever. True NFC emulation (HCE) - Most apps just generate QR codes. Cards Control turns your Android phone into an actual NFC card, like Google Pay but for your identity. All-in-one solution - Competitors make you choose: CamCard scans cards but doesn't share. Popl shares but doesn't scan. Cards Control does both, plus full NFC read/write. Unlimited profiles - Business, freelance, personal - switch instantly. Competitors charge extra for multiple profiles. Works offline - No internet? No problem. Your cards are always accessible. Privacy-first - Your data stays yours. We never sell your information. 20 languages - Not just English. Built for global networking.

How would you describe the primary audience of your product?

Cards-Control.app's answer:

Cards Control targets professionals who network frequently and want to ditch paper business cards. Primary audiences:

Sales professionals & business developers - Meet dozens of prospects weekly, need to capture and share contacts fast Entrepreneurs & startup founders - Multiple projects, need different profiles for different ventures Freelancers & consultants - Wear multiple hats, need to switch between professional identities Conference attendees & event networkers - Exchange contacts quickly without fumbling for paper cards Real estate agents, recruiters, coaches - Client-facing roles where first impressions matter

Secondary audiences:

Tech-savvy professionals - Appreciate NFC and want to stand out Eco-conscious networkers - Want to eliminate paper waste International professionals - Need multi-language support

Demographics: 25-55 years old, Android users, active on LinkedIn, attend industry events, value efficiency over tradition.

Which are the primary technologies used for building your product?

Cards-Control.app's answer:

Mobile:

Flutter - Cross-platform framework for Android (iOS coming soon) Dart - Programming language for Flutter Native Android HCE (Host Card Emulation) via platform channels

Backend:

Firebase Authentication - Secure login (Google, Apple, Email) Cloud Firestore - Real-time NoSQL database Firebase Cloud Storage - Profile photos and assets Firebase Hosting - Web app

AI:

OCR integration for paper card scanning Automatic contact data extraction

Development tools:

Claude Code - AI-assisted development and debugging VS Code - IDE Git - Version control

Infrastructure:

Google Cloud Platform (via Firebase) 20 languages localization built-in`

Who are some of the biggest customers of your product?

Cards-Control.app's answer:

Cards Control just launched in December 2025. We're currently onboarding our first users and building case studies.

What makes your product unique?

Cards-Control.app's answer:

`Cards Control is the only app that combines native NFC emulation (HCE) with AI card scanning in one solution. Unique features:

Native HCE emulation - Your phone becomes the NFC card. No plastic tag needed. No competitor does this. All-in-one toolkit - Create, share, AND scan. Others make you choose between apps. Full NFC control - Read, write, and emulate NFC tags. 15+ templates for URLs, WiFi, contacts, and more. No hardware business model - Competitors profit from selling $50 plastic cards. We don't sell hardware. Lifetime pricing - โ‚ฌ199 once vs $10+/month forever. No subscription trap. Solo-founder built - Fast iterations, direct user feedback, no corporate bloat.

User comments

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Social recommendations and mentions

Based on our record, LinearB seems to be more popular. It has been mentiond 28 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.

LinearB mentions (28)

  • The top 15 developer productivity tools in 2026
    LinearB is an engineering productivity platform that provides visibility into developer workflows, automation, and process metrics. It collects data across the entire development lifecycle to diagnose blockers and optimize delivery. One user reports saving 321 developer-hours per month. - Source: dev.to / 3 months ago
  • Developer Productivity vs Developer Experience: Why You Can't Fix One Without the Other
    Most tools measure half the picture. Traditional metrics platforms like LinearB focus on quantitative signals (DORA metrics, cycle time). Survey platforms like Culture Amp capture sentiment across organizations but aren't developer-specific. DX (founded by DORA/SPACE research creators) combines developer surveys with SDLC analytics. These approaches require deliberate implementation and buy-in. - Source: dev.to / 8 months ago
  • ๐ŸฆŠ GitLab: A Python Script Calculating DORA Metrics
    LinearB is a SaaS solution that retrieves metrics overtime, some of them being used to calculate DORA Metrics. They also have a Youtube channel that advocate for DORA Metrics and more. - Source: dev.to / over 2 years ago
  • 6 Proven Strategies For Being A Great Platform Engineer
    In helping engineering orgs get visibility into developer workflows with LinearB, Dan Lines and Ori Keren discovered that the majority of cycle time was being spent in pull request and code review. They found that:. - Source: dev.to / about 3 years ago
  • How to consolidate metrics from across the entire organisation
    LinearB and there are a few cheaper alternatives. Ties in DORA metrics from gut repos and agile project management tools like JIRA. https://linearb.io. Source: about 3 years ago
View more

Cards-Control.app mentions (0)

We have not tracked any mentions of Cards-Control.app yet. Tracking of Cards-Control.app recommendations started around Dec 2025.

What are some alternatives?

When comparing LinearB and Cards-Control.app, you can also consider the following products

Waydev - Waydev analyzes your codebase from Github, Gitlab, Azure DevOps & Bitbucket to help you bring out the best in your engineers work.

Mobilo - "Mobilo Card is a smart business card for entrepreneurs, sales leaders.

Swarmia - Swarmia is an engineering productivity software trusted by 600+ engineering teams worldwide. Use key engineering metrics to unblock the flow, align engineering with business objectives, and drive continuous improvement.

Blinq.me - Create your free digital business card in seconds. Recipients donโ€™t need the Blinq app to receive your card. Raise your networking game today.

CodeClimate - Code Climate provides automated code review for your apps, letting you fix quality and security issues before they hit production. We check every commit, branch and pull request for changes in quality and potential vulnerabilities.

HiHello - Exchange contacts, seamlessly.