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Derrick App VS Sing App React Java

Compare Derrick App VS Sing App React Java and see what are their differences

Derrick App

B2B data enrichment where you already work: a Google Sheet, an AI chat through MCP, or a REST API.

Rating
0 reviews
Pricing
Freemium Free trial €9 / Monthly
Alternatives Is it good?
Sing App React Java

React Admin Dashboard Template with Java Backend

Rating
0 reviews
Alternatives Is it good?
meetergo
GDPR-compliant meeting scheduling hosted in Germany. Booking pages, built-in video calls, lead routing, CRM and payments in one tool, with all data stored in Frankfurt and a data processing agreement (DPA/AVV) included. sponsored
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.

Base details

Website, pricing, platforms and company facts side by side.

Derrick App
Sing App React Java
Website derrick-app.com flatlogic.com
Pricing
Freemium Free trial €9 / Monthly Official pricing
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Platforms
Web REST API
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Company Startup from France · 1 - 9 employees · 2026 —
Listed in
Sales Email Marketing Productivity Lead Generation +1
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About Derrick App and Sing App React Java

In their own words, as submitted to SaaSHub.

Derrick App
Sing App React Java

Derrick is a B2B data enrichment service built for the tools sales, RevOps and growth teams already use. Point it at a column of company names, domains, or LinkedIn URLs and it fills in the rest: verified professional emails, phone numbers, company firmographics, technologies in use, hiring...

Read more about Derrick App

No description of Sing App React Java yet.

Features and specs

What each product offers, as listed by its team.

Derrick App 10 features
Sing App React Java 0 features
  • Email Finder
    Find a prospect's verified professional email from a LinkedIn profile or a name and domain. Billed per email actually found, so an empty result costs nothing.
  • Phone Finder
    Find direct and mobile numbers for a contact. Billed per number actually found.
  • Enrich Leads and Companies
    Turn a LinkedIn profile or company URL into a full record: role, seniority, location, headcount, industry, and over 100 data points per lead.
  • French Company Data (SIRET, SIREN, NAF)
    Enrich French companies from a SIRET, SIREN or company name: identity, activity, directors, headcount and legal records from the public registry. Also imports every company matching a NAF activity code.
  • MCP Server for AI Assistants
    Run the same enrichment from Claude, ChatGPT or any MCP-compatible client. Ask in plain language and get real data back rather than a generated guess.
  • REST API
    Wire enrichment into a CRM, a backend or a scheduled job, and into 3000+ tools through Zapier, Make and n8n. One credit balance shared with the spreadsheet and the AI assistant.
  • Buying Signals
    Track accounts and leads for job changes, funding rounds, hiring activity and tech-stack moves, and get alerted when a signal fires.
  • List Building from a Prompt
    Describe the companies or people you are looking for in one sentence and import the matching records, with industry, country, website and LinkedIn URL.
  • Website and Tech Enrichment
    Detect the technologies running on any website, crawl site content, and extract public contact and social profiles.
  • Email Verification and List Cleaning
    Verify addresses before a campaign to cut bounces, remove duplicates, split emails into name and domain, and infer likely gender for personalisation.

No features have been listed yet.

Analysis

An editorial look at what each product does well and who it suits.

Derrick App
Sing App React Java

No analysis of Derrick App yet.

Overall verdict

  • Sing App React Java by Flatlogic is a solid, well-structured admin dashboard template that pairs a modern React frontend with a Java (Spring Boot) backend, making it a good choice for developers who want a ready-made full-stack starter kit rather than building an admin panel from scratch.

Why this product is good

  • Combines a React frontend with a Java/Spring Boot backend, giving a complete full-stack boilerplate out of the box
  • Includes pre-built UI components, charts, tables, and forms that speed up dashboard development
  • Clean and modern design that follows common admin panel UX patterns
  • Comes with authentication and basic CRUD operations already implemented
  • Good documentation and support from Flatlogic for setup and customization
  • Regularly maintained and updated to keep dependencies current
  • Affordable compared to hiring a developer to build a similar boilerplate from scratch

Recommended for

  • Developers who want a quick-start template for building admin panels or internal tools
  • Teams building SaaS products that need a Java backend paired with a React UI
  • Freelancers or agencies looking to speed up client project delivery with a pre-built dashboard
  • Startups wanting to prototype an admin interface without investing heavily in initial UI/UX design
  • Java developers who prefer Spring Boot but want a modern JavaScript frontend without building it themselves

Videos

Walkthroughs and reviews on video.

Derrick App 1 video + Add
Sing App React Java 0 videos + Add

Lead Enrichment from Linkedin (3 Minutes Tutorial FR) - Derrick App

No Sing App React Java videos yet. You could help us improve this page by suggesting one.

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Derrick App
Sing App React Java
100% 100%
Sales
0% 0%
100% 100%
Lead Generation
0% 0%
100% 100%
Email Marketing
0% 0%
100% 100%
Productivity
0% 0%

Questions & Answers

As answered by people managing Derrick App and Sing App React Java.

What makes your product unique?

Derrick App's answer

Derrick runs the same enrichment engine on three different surfaces, against one shared credit balance.

A Google Sheets sidebar for working a list: enrich hundreds or thousands of rows, see the result column by column, then filter and sort in place.

An MCP server for working inside an AI conversation: ask a question in plain language from Claude, ChatGPT or any MCP-compatible client and get real data back instead of a guess. Most enrichment tools are only now announcing MCP support. Derrick ships it.

A REST API for working without a human: a CRM, a backend, a scheduled job, or a no-code workflow through Zapier, Make and n8n.

Two other things are unusual. Finder features are billed per result found, so a lookup that returns nothing costs nothing. And Derrick keeps no database of its own: every request queries sources at the moment you ask, so you get the state of the world today rather than a snapshot from a data dump.

French company data is native, not an afterthought: SIRET, SIREN, directors and legal records come straight from the public registry.

Why should a person choose your product over its competitors?

Derrick App's answer

Derrick runs the same enrichment engine on three different surfaces, against one shared credit balance.

A Google Sheets sidebar for working a list: enrich hundreds or thousands of rows, see the result column by column, then filter and sort in place.

An MCP server for working inside an AI conversation: ask a question in plain language from Claude, ChatGPT or any MCP-compatible client and get real data back instead of a guess. Most enrichment tools are only now announcing MCP support. Derrick ships it.

A REST API for working without a human: a CRM, a backend, a scheduled job, or a no-code workflow through Zapier, Make and n8n.

Two other things are unusual. Finder features are billed per result found, so a lookup that returns nothing costs nothing. And Derrick keeps no database of its own: every request queries sources at the moment you ask, so you get the state of the world today rather than a snapshot from a data dump.

French company data is native, not an afterthought: SIRET, SIREN, directors and legal records come straight from the public registry.

How would you describe the primary audience of your product?

Derrick App's answer

Small sales, growth and RevOps teams that build their own prospecting lists, plus the agencies and freelancers who do that work for clients.

Concretely: someone who owns pipeline, works from a spreadsheet or a CRM, and needs contact and company data enriched before an outreach sequence goes out. Usually a founder, an SDR, a growth marketer, a RevOps or ops person, or a lead-gen consultant. Team size is typically under 200 people.

A second and growing group is developers and technical operators, who reach Derrick through the REST API or the MCP server rather than through the spreadsheet, and wire enrichment into a product, a CRM or an automated workflow.

Geographically the base is strongest in France, where the native SIRET and SIREN coverage matters, and extends across Europe and North America for LinkedIn, email and phone enrichment.

What's the story behind your product?

Derrick App's answer

Derrick was founded in 2022 and came out of agency work, not out of a product plan.

Running lead generation for clients meant the same loop every week: build a list, export it, push it through one tool for emails, another for company data, re-import the result, then clean up what did not match. The spreadsheet was where the work actually lived, and every tool wanted to pull the work out of it.

So the first version was built the other way around: bring the enrichment to the spreadsheet instead of moving the list to the enrichment tool. That decision shaped everything after it. When AI assistants became a place where people genuinely do research, the same engine was exposed as an MCP server rather than rebuilt as another chat product. When teams needed it inside their own systems, the same engine was exposed as a REST API.

The other early decision was to store no data. Derrick queries sources at the moment of the request. It costs more per lookup than serving from a warehouse, but the record is current, and there is no stale database to maintain.

Which are the primary technologies used for building your product?

Derrick App's answer

Google Apps Script for the Google Sheets add-on, distributed through the Google Workspace Marketplace.

Node.js for the MCP server, published on npm as derrick-mcp and installable with npx, no build step. It loads its tool list dynamically from the API at startup, so new enrichment features appear in AI clients without a server update.

A JSON REST API over HTTPS with API-key authentication, which is the shared foundation all surfaces call.

A JavaScript Chrome extension, used to connect a LinkedIn session for the LinkedIn-based features.

Astro on Cloudflare Pages for the public website.

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