VOL. XCIV, NO. 247

★ FINANCIAL TOOLS & SERVICES DIRECTORY ★

PRICE: 5 CENTS

Saturday, September 27, 2025

Investors comparing Listen Notes and MarineTraffic will find that Both Listen Notes and MarineTraffic concentrate on Data APIs, and Alerts workflows, making them natural alternatives for similar investment research jobs. Listen Notes leans into APIs & SDKs, Education, and Other, which can be decisive for teams that need depth over breadth. MarineTraffic stands out with Data Visualizations, and Shipping & Trade that the competition lacks. Use the feature-by-feature table to inspect unique capabilities and confirm which roadmap best maps to your process.

Head-to-head

Listen Notes vs MarineTraffic

Compare pricing, supported platforms, categories, and standout capabilities to decide which tool fits your workflow.

Quick takeaways

  • Listen Notes adds APIs & SDKs, Education, and Other coverage that MarineTraffic skips.
  • MarineTraffic includes Data Visualizations, and Shipping & Trade categories that Listen Notes omits.
  • Listen Notes highlights: Podcast API v2: search, directory, insights; official client libraries; OpenAPI spec & mock server for keyless testing., Pricing tiers with concrete quotas: FREE (300 req/mo), PRO (base fee with 5k req/mo included + tiered overages), ENTERPRISE (annual contract, larger quotas, relaxed caching/no-logo)., and Plan-based search result caps & rate limits: FREE up to 30 results/query (2 req/s, 20 req/min); PRO up to 300 results/query (medium rate limit); ENTERPRISE up to 10,000 results/query (high rate limit)..
  • MarineTraffic is known for: Live Map with advanced filters, including ship type, capacity, status, and custom smart filters., Notifications for port calls, area entries, vessel movements (speed, course changes, drifting), AIS data updates (ETA, destination, draught), proximity events (STS, tug, pilot, bunkering), and AIS-coverage changes, delivered via email, mobile push, or archive., and CSV exports from vessel and port databases, with monthly quotas depending on plan: Basic (5), Essential (300), Enterprise (10,000)..
Listen Notes logo

Listen Notes

listennotes.com

Podcast search engine plus developer Podcast API (search/directory/insights) and purchasable datasets. Free plan allows light testing; PRO is a metered subscription with tiered overages and specific search‑result/rate‑limit allowances; Enterprise relaxes caching/logo rules and increases quotas & SLAs. Listen Alerts monitors 3.6M+ podcasts for keyword mentions with email/RSS and Zapier/IFTTT hooks. Datasets can be exported as CSV/SQLite for analytics, PR/sales, and finance alt‑data use cases. API base URL is https://listen-api.listennotes.com/api/v2 with API‑key auth.

Platforms

Web
API
Mobile

Pricing

Free
Subscription
One-time

Quick highlights

  • Podcast API v2: search, directory, insights; official client libraries; OpenAPI spec & mock server for keyless testing.
  • Pricing tiers with concrete quotas: FREE (300 req/mo), PRO (base fee with 5k req/mo included + tiered overages), ENTERPRISE (annual contract, larger quotas, relaxed caching/no-logo).
  • Plan-based search result caps & rate limits: FREE up to 30 results/query (2 req/s, 20 req/min); PRO up to 300 results/query (medium rate limit); ENTERPRISE up to 10,000 results/query (high rate limit).
  • Advanced fields & endpoints on higher tiers: transcripts, batch fetch, RSS/large image, email, latest_episode_id, Listen Score & Global Rank.
  • Listen Alerts: 24/7 monitoring of new episodes mentioning keywords; daily email digests, per‑alert RSS feeds; connects via Zapier/IFTTT and RSS to Slack/Trello/Airtable etc.
MarineTraffic logo

MarineTraffic

marinetraffic.com

Global AIS vessel tracking platform with map views, alerts, voyage history, and data exports. Many features are plan-gated: CSV export quotas, Past Track history, detailed Route Forecasts, and the number of Custom Areas you can define. API access is available with an API key, and mobile apps provide push notifications.

Platforms

Web
Mobile
API

Pricing

Free
Subscription

Quick highlights

  • Live Map with advanced filters, including ship type, capacity, status, and custom smart filters.
  • Notifications for port calls, area entries, vessel movements (speed, course changes, drifting), AIS data updates (ETA, destination, draught), proximity events (STS, tug, pilot, bunkering), and AIS-coverage changes, delivered via email, mobile push, or archive.
  • CSV exports from vessel and port databases, with monthly quotas depending on plan: Basic (5), Essential (300), Enterprise (10,000).
  • Past Track playback varies by plan: Free (1 day), Essential (7 days), Enterprise (up to 5 years, in 7-day playback windows).
  • Route Forecast tools: Basic shows path previews; Essential and Enterprise unlock ETA and speed details.

Shared focus areas

Both platforms align on these research themes, so you can stay within one workflow when your use case involves them.

Where they differ

Listen Notes

Distinct strengths include:

  • Podcast API v2: search, directory, insights; official client libraries; OpenAPI spec & mock server for keyless testing.
  • Pricing tiers with concrete quotas: FREE (300 req/mo), PRO (base fee with 5k req/mo included + tiered overages), ENTERPRISE (annual contract, larger quotas, relaxed caching/no-logo).
  • Plan-based search result caps & rate limits: FREE up to 30 results/query (2 req/s, 20 req/min); PRO up to 300 results/query (medium rate limit); ENTERPRISE up to 10,000 results/query (high rate limit).
  • Advanced fields & endpoints on higher tiers: transcripts, batch fetch, RSS/large image, email, latest_episode_id, Listen Score & Global Rank.

MarineTraffic

Distinct strengths include:

  • Live Map with advanced filters, including ship type, capacity, status, and custom smart filters.
  • Notifications for port calls, area entries, vessel movements (speed, course changes, drifting), AIS data updates (ETA, destination, draught), proximity events (STS, tug, pilot, bunkering), and AIS-coverage changes, delivered via email, mobile push, or archive.
  • CSV exports from vessel and port databases, with monthly quotas depending on plan: Basic (5), Essential (300), Enterprise (10,000).
  • Past Track playback varies by plan: Free (1 day), Essential (7 days), Enterprise (up to 5 years, in 7-day playback windows).

Feature-by-feature breakdown

AttributeListen NotesMarineTraffic
Categories

Which research workflows each platform targets

Shared: Data APIs, Alerts

Unique: APIs & SDKs, Education, Other

Shared: Data APIs, Alerts

Unique: Data Visualizations, Shipping & Trade

Asset types

Supported asset classes and universes

Other

Other

Experience levels

Who each product is built for

Beginner, Intermediate, Advanced

Beginner, Intermediate, Advanced

Platforms

Where you can access the product

Web, API, Mobile

Web, Mobile, API

Pricing

High-level pricing models

Free, Subscription, One-time

Free, Subscription

Key features

Core capabilities called out by each vendor

Unique

  • Podcast API v2: search, directory, insights; official client libraries; OpenAPI spec & mock server for keyless testing.
  • Pricing tiers with concrete quotas: FREE (300 req/mo), PRO (base fee with 5k req/mo included + tiered overages), ENTERPRISE (annual contract, larger quotas, relaxed caching/no-logo).
  • Plan-based search result caps & rate limits: FREE up to 30 results/query (2 req/s, 20 req/min); PRO up to 300 results/query (medium rate limit); ENTERPRISE up to 10,000 results/query (high rate limit).
  • Advanced fields & endpoints on higher tiers: transcripts, batch fetch, RSS/large image, email, latest_episode_id, Listen Score & Global Rank.
  • Listen Alerts: 24/7 monitoring of new episodes mentioning keywords; daily email digests, per‑alert RSS feeds; connects via Zapier/IFTTT and RSS to Slack/Trello/Airtable etc.
  • Podcast Datasets: batch export by keyword/category/playlist/iTunes IDs or full‑database Enterprise export; delivered as CSV or SQLite.

Unique

  • Live Map with advanced filters, including ship type, capacity, status, and custom smart filters.
  • Notifications for port calls, area entries, vessel movements (speed, course changes, drifting), AIS data updates (ETA, destination, draught), proximity events (STS, tug, pilot, bunkering), and AIS-coverage changes, delivered via email, mobile push, or archive.
  • CSV exports from vessel and port databases, with monthly quotas depending on plan: Basic (5), Essential (300), Enterprise (10,000).
  • Past Track playback varies by plan: Free (1 day), Essential (7 days), Enterprise (up to 5 years, in 7-day playback windows).
  • Route Forecast tools: Basic shows path previews; Essential and Enterprise unlock ETA and speed details.
  • Custom Areas can be created or imported (KMZ/KML/GEOJSON/WKT), with plan limits from 1 area (Essential) up to 2,000 (Enterprise).
Tested

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Editor pick

Featured inside curated shortlists

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Frequently Asked Questions

Which workflows do Listen Notes and MarineTraffic both support?

Both platforms cover Data APIs, and Alerts workflows, so you can research those use cases in either tool before digging into the feature differences below.

Do Listen Notes and MarineTraffic require subscriptions?

Both Listen Notes and MarineTraffic keep freemium access with optional paid upgrades, so you can trial each platform before committing.

How can you access Listen Notes and MarineTraffic?

Both Listen Notes and MarineTraffic support web and mobile access, making it easy to keep tabs on research away from the desk.

What unique strengths set the two platforms apart?

Listen Notes differentiates itself with Podcast API v2: search, directory, insights; official client libraries; OpenAPI spec & mock server for keyless testing., Pricing tiers with concrete quotas: FREE (300 req/mo), PRO (base fee with 5k req/mo included + tiered overages), ENTERPRISE (annual contract, larger quotas, relaxed caching/no-logo)., and Plan-based search result caps & rate limits: FREE up to 30 results/query (2 req/s, 20 req/min); PRO up to 300 results/query (medium rate limit); ENTERPRISE up to 10,000 results/query (high rate limit)., whereas MarineTraffic stands out for Live Map with advanced filters, including ship type, capacity, status, and custom smart filters., Notifications for port calls, area entries, vessel movements (speed, course changes, drifting), AIS data updates (ETA, destination, draught), proximity events (STS, tug, pilot, bunkering), and AIS-coverage changes, delivered via email, mobile push, or archive., and CSV exports from vessel and port databases, with monthly quotas depending on plan: Basic (5), Essential (300), Enterprise (10,000)..

Curation & Accuracy

This directory blends AI‑assisted discovery with human curation. Entries are reviewed, edited, and organized with the goal of expanding coverage and sharpening quality over time. Your feedback helps steer improvements (because no single human can capture everything all at once).

Details change. Pricing, features, and availability may be incomplete or out of date. Treat listings as a starting point and verify on the provider’s site before making decisions. If you spot an error or a gap, send a quick note and I’ll adjust.