Listen Notes adds Data APIs, APIs & SDKs, Alerts, and Other coverage that r/SecurityAnalysis — Letters Wiki skips.
VOL. XCIV, NO. 247
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Friday, October 31, 2025
Tool Comparison
Listen Notes vs r/SecurityAnalysis — Letters Wiki comparison
Compare pricing, supported platforms, categories, and standout capabilities to decide which tool fits your workflow.
Quick takeaways
r/SecurityAnalysis — Letters Wiki includes Forums, Playbooks & Case Studies, and Newsletters categories that Listen Notes omits.
Listen Notes ships a mobile app. r/SecurityAnalysis — Letters Wiki is web/desktop only.
In depth comparison
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.
Categories
Platforms
WebAPIMobile
Pricing
FreeSubscriptionOne-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.
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r/SecurityAnalysis — Letters Wiki
reddit.com
Community‑maintained directory of investor/fund letters and reports, organized by year/quarter. Publicly viewable; edits limited to approved contributors. Links out to original PDFs/posts on managers’ sites. No data feeds, APIs, or exports—pure research reading list.
Platforms
Web
Pricing
Free
Quick highlights
- Chronological index of letters grouped by year and quarter (2016→present in the wiki).
- Publicly readable wiki page with edit permissions restricted to approved users/moderators.
- ‘Others’ section pointing to classic collections (e.g., Austin Value, Nomad Partnership, Peter Lynch).
- Direct outbound links to the letters on manager sites; useful for primary-source research.
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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.
r/SecurityAnalysis — Letters Wiki
Distinct strengths include:
- Chronological index of letters grouped by year and quarter (2016→present in the wiki).
- Publicly readable wiki page with edit permissions restricted to approved users/moderators.
- ‘Others’ section pointing to classic collections (e.g., Austin Value, Nomad Partnership, Peter Lynch).
- Direct outbound links to the letters on manager sites; useful for primary-source research.
Feature-by-feature breakdown
| Attribute | Listen Notes | r/SecurityAnalysis — Letters Wiki |
|---|---|---|
Categories Which research workflows each platform targets | Shared: Education Unique: Data APIs, APIs & SDKs, Alerts, Other | Shared: Education Unique: Forums, Playbooks & Case Studies, Newsletters |
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 |
Pricing High-level pricing models | Free, Subscription, One-time | Free |
Key features Core capabilities called out by each vendor | Unique
| Unique
|
Tested Verified by hands-on testing inside Find My Moat | Not yet | Not yet |
Editor pick Featured inside curated shortlists | Standard listing | Standard listing |
Frequently Asked Questions
Which workflows do Listen Notes and r/SecurityAnalysis — Letters Wiki both support?
Both platforms cover Education workflows, so you can research those use cases in either tool before digging into the feature differences below.
Do Listen Notes and r/SecurityAnalysis — Letters Wiki require subscriptions?
Both Listen Notes and r/SecurityAnalysis — Letters Wiki keep freemium access with optional paid upgrades, so you can trial each platform before committing.
Which tool has mobile access?
Listen Notes ships a dedicated mobile experience, while r/SecurityAnalysis — Letters Wiki focuses on web or desktop access.
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 r/SecurityAnalysis — Letters Wiki stands out for Chronological index of letters grouped by year and quarter (2016→present in the wiki)., Publicly readable wiki page with edit permissions restricted to approved users/moderators., and ‘Others’ section pointing to classic collections (e.g., Austin Value, Nomad Partnership, Peter Lynch)..
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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.