Software Alternatives, Accelerators & Startups

SparkLoop VS ServiceGraph

Compare SparkLoop VS ServiceGraph 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.

SparkLoop logo SparkLoop

The first referral tool for newsletters

ServiceGraph logo ServiceGraph

datasets for founders โ€” where to launch, who to email, who to hire
  • SparkLoop Landing page
    Landing page //
    2023-05-15
  • ServiceGraph 850 + product directories & more
    850 + product directories & more //
    2026-05-26
  • ServiceGraph
    Image date //
    2026-05-26
  • ServiceGraph
    Image date //
    2026-05-26

ServiceGraph is datasets for founders โ€” where to launch, who to email, who to hire.

Every founder ships a product and hits the same wall: where do I actually launch this, who do I email to grow, who do I hire? The honest answers are scattered โ€” in 2-year-old listicles where half the links 404, in ChatGPT answers that invent URLs, in frozen Notion lists nobody updates.

ServiceGraph turns that mess into living datasets: - 850+ product directories โ€” submission policy, DR, traffic - 3,500+ business directories โ€” industry, DR, traffic - 50,000+ newsletters โ€” subscribers, topics, post cadence - 110,000+ agencies โ€” services, size, location, ratings Coming soon: subreddits, influencers.

Every row carries real metrics. Searchable, sortable, exportable. CSV via the web, JSON via the API.

Pricing is credit-based. Browse, search and filter for free. Unlock the rows you need for credits โ€” 2,000 free on signup, no card, no subscription, and they don't expire.

Built by founders who needed it themselves.

SparkLoop features and specs

  • Ease of Use
    SparkLoop offers an intuitive and user-friendly interface, making it accessible even to users without technical expertise. This minimizes the time and effort required to launch referral programs.
  • Integrations
    SparkLoop provides seamless integrations with popular email marketing platforms such as Mailchimp and ConvertKit, enabling effortless synchronization of subscriber data and workflows.
  • Automation
    The platform supports automated reward distribution and tracking, reducing the manual effort involved in managing referral programs and ensuring accuracy in rewarding participants.
  • Analytics
    SparkLoop offers detailed analytics and reporting features that help businesses monitor the performance of their referral programs and gain insights for optimization.
  • Scalability
    The tool is designed to support the scaling of referral programs, accommodating growing subscriber lists and increasing the reach of referral campaigns.

Possible disadvantages of SparkLoop

  • Pricing
    For small businesses or startups, SparkLoop's pricing might be on the higher side, especially as subscriber counts grow, potentially straining limited budgets.
  • Limited Customization
    While offering critical functionalities, SparkLoop may have limitations in terms of customization options for advanced users wanting highly tailored referral experiences.
  • Dependence on Integrations
    The effectiveness of SparkLoop can be heavily dependent on the availability and reliability of integrations with the specific email marketing tools a business uses.

ServiceGraph features and specs

  • Product directories
    850+ directories with submission policy, domain rank and real traffic attached
  • Business directories
    3,500+ directories by industry, with DR and traffic
  • Newsletters
    50,000+ newsletters with subscribers, topics and post cadence
  • Agencies
    110,000+ agencies with services, size, location and ratings
  • Data freshness
    Live datasets โ€” updated regularly, not static listicles
  • Search & filter
    Searchable, sortable, filterable by DR, traffic, subscribers, niche
  • Export
    CSV via web, JSON via REST API
  • API
    REST API, Bearer token auth, docs at docs.servicegraph.co
  • Free tier
    2,000 credits on signup โ€” no card, no subscription, credits don't expire
  • Pricing
    $10 per 1,000 credits, $80 per 10,000. 10 credits = 1 row unlocked for 30 days
  • Use cases
    Launch, SEO backlinks, newsletter outreach, agency hiring
  • Coming soon
    Subreddits and influencers datasets

Analysis of ServiceGraph

Overall verdict

  • I don't have verified, specific information about a product called 'ServiceGraph' at servicegraph.co, so I can't confirm whether it's good or provide an accurate assessment. I'd be fabricating details if I claimed specific knowledge about this particular service's quality, features, or reputation.

Why this product is good

  • I don't have reliable, up-to-date data on this specific website or product to evaluate its merits
  • Providing a confident verdict without verified information could mislead you
  • Company websites and products can change frequently, so even if I had prior knowledge it may be outdated

Recommended for

  • Anyone considering this service should check recent user reviews on independent platforms
  • Visit the actual website to review their current offerings, pricing, and customer testimonials
  • Look for third-party reviews on sites like G2, Trustpilot, or Capterra if it's a business software product
  • Reach out to their support team directly with specific questions about your use case

SparkLoop videos

Setting up a newsletter referral program in MINUTES with SparkLoop โ€” just like Morning Brew!

More videos:

  • Review - #NoCodeNerd | Sparkloop
  • Tutorial - [Masterclass] How to grow your newsletter with Facebook ads โ€” by Mojca Zove for SparkLoop

ServiceGraph videos

Where do I launch this? 850+ live product directories with DR + traffic โ€” ServiceGraph

Category Popularity

0-100% (relative to SparkLoop and ServiceGraph)
Email Newsletters
100 100%
0% 0
Sales And Marketing
0 0%
100% 100
Email Marketing
100 100%
0% 0
Lead Generation
0 0%
100% 100

Questions & Answers

As answered by people managing SparkLoop and ServiceGraph.

What makes your product unique?

ServiceGraph's answer:

Most "where to launch / who to email / who to hire" lists online are stale โ€” 2-year-old listicles where half the links 404, ChatGPT answers that invent URLs, frozen Notion lists nobody updates. ServiceGraph is the live alternative: curated datasets of product directories, business directories, newsletters and agencies, each row carrying real metrics โ€” traffic, domain rank, subscriber counts, ratings โ€” refreshed continuously and exportable as CSV or JSON.

Why should a person choose your product over its competitors?

ServiceGraph's answer:

Three reasons. (1) Freshness โ€” most directory aggregators publish once and rot; we maintain ours as a living dataset. (2) Real metrics on every row, not just a list of names โ€” filter directories by DR and traffic for SEO, newsletters by subscriber count for outreach, agencies by ratings and location for hiring. (3) Zero-friction trial โ€” browse, search and filter completely free; 2,000 credits on signup, no card, credits don't expire.

How would you describe the primary audience of your product?

ServiceGraph's answer:

Founders and growth operators at early-stage startups, typically 1โ€“10 people, who just shipped a product or are about to. They keep hitting the same three questions: where do I launch this, who do I email to grow, who do I hire. Solo indie hackers, small SaaS teams, and the marketers and agencies who serve them.

What's the story behind your product?

ServiceGraph's answer:

We built it for ourselves. Every time we shipped, finding the right places to launch and the right people to reach ate a full day of googling stale listicles and asking ChatGPT for URLs that didn't exist. We started maintaining our own list โ€” with real traffic and domain-rank attached to each row โ€” and realized every other founder was hitting the same wall. So we turned the internal tool into a product. Operated by NostrCorp, Inc. (Delaware).

Which are the primary technologies used for building your product?

ServiceGraph's answer:

TypeScript on the application side (web app and product API). Python for the data and ML pipeline that enriches and classifies rows across all datasets โ€” directories, newsletters, agencies. ClickHouse as the storage and analytics backbone โ€” chosen for fast aggregations across millions of rows so search, sort and filter stay snappy even on the 110k+ agencies dataset. REST API over HTTP exposed at docs.servicegraph.co.

User comments

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Reviews

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

SparkLoop Reviews

9 SparkLoop Alternatives for Rapid Newsletter Growth
SparkLoop is a newsletter referral marketing program that can help you increase your email subscribers and grow your business.
Source: viral-loops.com
FeedLetter VS Sparkloop Reactions - Which Should You Use?
FeedLetter and Sparkloop Reactions are both tools that help you to get feedback from your newsletter readers. They look similar at first but are not. They have some essential differences weโ€™ll cover in this post.
Source: feedletter.co

ServiceGraph Reviews

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

Social recommendations and mentions

Based on our record, SparkLoop seems to be more popular. It has been mentiond 2 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.

SparkLoop mentions (2)

  • Ask HN: What Are You Working On? (October 2025)
    Https://SaasCustomDomains.com, it started as a side project while I was working on https://sparkloop.app. https://kit.com acquired SparkLoop and I decided to go full-time on SaaS Custom Domains. It's basically a reverse-proxy-as-a-service. I handle TLS termination and cert management, offer routing rules, rate limiting, WAF + DDOS protection, proxy + web analytics, redirects etc. All accessible via very simple... - Source: Hacker News / 9 months ago
  • Referral mechanism
    You could look at something like SparkLoop: https://sparkloop.app/. Source: about 3 years ago

ServiceGraph mentions (0)

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

What are some alternatives?

When comparing SparkLoop and ServiceGraph, you can also consider the following products

Firewards - Setup a referral and rewards program for your email list or newsletter.

Clutch.co - Ratings and reviews of leading IT, marketing, and business services companies. Clutch is your data-driven field guide for B2B buying and hiring decisions.

Inbox Reads - The All-in-One Platform for Newsletter Insights

ZoomInfo - ZoomInfo is a B2B database providing detailed business information on people and companies.

CrossPromo Club - The newsletter cross-promotion tool that grows your subscribers automatically. Share one link to join our cross-promotion network, then however many subscribers you send to others, we'll send the same number back - fair, simple, automatic.

Net Solutions - Where innovation meets expertise. Award-winning digital solutions built for growth.