VOL. XCIV, NO. 247

★ A CURATED DIRECTORY OF FINANCIAL TOOLS ★

PRICE: 5 CENTS

Saturday, December 13, 2025

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Tool Comparison

Letters and Reviews vs Ziggma comparison

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

Quick takeaways

Letters and Reviews adds 13F coverage that Ziggma skips.

Ziggma includes Portfolio, Watchlist, Screeners, ETF Screeners, Risk Metrics, Financials, Scores, ESG Ratings, Dividends, Dividend, Alerts, Broker Connectors, and Education categories that Letters and Reviews omits.

In depth comparison

Letters and Reviews

lettersandreviews.blogspot.com

Free, personal curation site that aggregates **fund manager letters**, tickers mentioned in those letters, and **quarterly 13F** filer lists the author follows. Each quarter page links to original letters and maps tickers to quick‑reference pages; some 13F pages embed holdings tables and activity (new/increased/decreased/sold) for many managers. Also includes a small **Podcasts** list. No accounts, alerts, exports, or API-think link‑hub for primary sources rather than a data platform.

Platforms

Web

Pricing

Free

Quick highlights

Quarterly **Fund Manager Letters** pages with the fund name, date, and a ‘Stocks Mentioned’ column (tickers link out for quick lookup).
Quarterly **13‑F pages** the author reads, with many entries including holdings tables and position‑change flags (e.g., NEW / Sold Out / % of portfolio).
Lightweight **About** page clarifies the goal: stock‑idea discovery from letters; author shares links and invites tips via @_iinvested.
A small **Podcasts** page curating investing/finance episodes the author plans to re‑listen to.

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Ziggma

ziggma.com

Broker‑agnostic, web‑based portfolio tracker and fundamental research platform for self‑directed, long‑term investors, combining multi‑account aggregation, Ziggma Stock Scores, dividend and impact analytics, Smart Alerts and a portfolio simulator. Account aggregation uses Plaid and Snaptrade via OAuth and encrypts all holdings data on US‑based AWS infrastructure; Ziggma never sees login credentials. Stock Scores and the Top 50 list unlock on Starter, while Smart Alerts, Portfolio Optimizer and Model & Guru portfolios require Investor or Expert; Expert raises brokerage links and virtual portfolios to unlimited, and all paid tiers include a 7‑day free trial.

Platforms

Web

Pricing

FreeSubscription

Quick highlights

Broker‑agnostic web portfolio tracker that consolidates multiple brokerage, IRA and 401(k) accounts into a single dashboard with performance, allocation, income and risk analytics for individual and combined portfolios.
Secure account linking to 10,000+ banks and brokers (including Fidelity, Schwab, Robinhood, Webull, Coinbase and many plan sponsors) via Plaid and Snaptrade using OAuth; Ziggma never sees or stores login credentials and encrypts holdings data.
Dividend Tracker that aggregates cash flows and forward income across all linked accounts, monitors portfolio yield and payment timing, and lets users drill into income by holding.
Algorithm‑powered Ziggma Stock Scores—daily updated, fully fundamentals‑driven 0–100 ratings based on dozens of indicators for growth, profitability, valuation and financial strength for all US stocks above $100m market cap—plus a Top 50 list of high‑scoring stocks in fast‑growing industries.
High‑performance stock and ETF screener with intuitive sliders and presets, including ESG/impact filters (climate leaders, circular economy, Sharia‑compliant) and technical/momentum criteria like 52‑week highs.

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Where they differ

Letters and Reviews

Distinct strengths include:

13F

Quarterly **Fund Manager Letters** pages with the fund name, date, and a ‘Stocks Mentioned’ column (tickers link out for quick lookup).
Quarterly **13‑F pages** the author reads, with many entries including holdings tables and position‑change flags (e.g., NEW / Sold Out / % of portfolio).
Lightweight **About** page clarifies the goal: stock‑idea discovery from letters; author shares links and invites tips via @_iinvested.
A small **Podcasts** page curating investing/finance episodes the author plans to re‑listen to.

Ziggma

Distinct strengths include:

Portfolio Watchlist Screeners ETF Screeners Risk Metrics Financials Scores ESG Ratings

Broker‑agnostic web portfolio tracker that consolidates multiple brokerage, IRA and 401(k) accounts into a single dashboard with performance, allocation, income and risk analytics for individual and combined portfolios.
Secure account linking to 10,000+ banks and brokers (including Fidelity, Schwab, Robinhood, Webull, Coinbase and many plan sponsors) via Plaid and Snaptrade using OAuth; Ziggma never sees or stores login credentials and encrypts holdings data.
Dividend Tracker that aggregates cash flows and forward income across all linked accounts, monitors portfolio yield and payment timing, and lets users drill into income by holding.
Algorithm‑powered Ziggma Stock Scores—daily updated, fully fundamentals‑driven 0–100 ratings based on dozens of indicators for growth, profitability, valuation and financial strength for all US stocks above $100m market cap—plus a Top 50 list of high‑scoring stocks in fast‑growing industries.

Feature-by-feature breakdown

Attribute	Letters and Reviews	Ziggma
Categories Which research workflows each platform targets	Shared: Stock Ideas, Blogs Unique: 13F	Shared: Stock Ideas, Blogs Unique: Portfolio, Watchlist, Screeners, ETF Screeners, Risk Metrics, Financials, Scores, ESG Ratings, Dividends, Dividend, Alerts, Broker Connectors, Education
Asset types Supported asset classes and universes	Stocks, ETFs	Stocks, ETFs, Mutual Funds, Bonds, Cryptos
Experience levels Who each product is built for	Beginner, Intermediate, Advanced	Beginner, Intermediate, Advanced
Platforms Where you can access the product	Web	Web
Pricing High-level pricing models	Free	Free, Subscription
Key features Core capabilities called out by each vendor	Unique Quarterly Fund Manager Letters pages with the fund name, date, and a ‘Stocks Mentioned’ column (tickers link out for quick lookup). Quarterly 13‑F pages the author reads, with many entries including holdings tables and position‑change flags (e.g., NEW / Sold Out / % of portfolio). Lightweight About page clarifies the goal: stock‑idea discovery from letters; author shares links and invites tips via @_iinvested. A small Podcasts page curating investing/finance episodes the author plans to re‑listen to.	Unique Broker‑agnostic web portfolio tracker that consolidates multiple brokerage, IRA and 401(k) accounts into a single dashboard with performance, allocation, income and risk analytics for individual and combined portfolios. Secure account linking to 10,000+ banks and brokers (including Fidelity, Schwab, Robinhood, Webull, Coinbase and many plan sponsors) via Plaid and Snaptrade using OAuth; Ziggma never sees or stores login credentials and encrypts holdings data. Dividend Tracker that aggregates cash flows and forward income across all linked accounts, monitors portfolio yield and payment timing, and lets users drill into income by holding. Algorithm‑powered Ziggma Stock Scores—daily updated, fully fundamentals‑driven 0–100 ratings based on dozens of indicators for growth, profitability, valuation and financial strength for all US stocks above $100m market cap—plus a Top 50 list of high‑scoring stocks in fast‑growing industries. High‑performance stock and ETF screener with intuitive sliders and presets, including ESG/impact filters (climate leaders, circular economy, Sharia‑compliant) and technical/momentum criteria like 52‑week highs. Impact investing workflow that surfaces impact‑oriented stocks, ETFs, green bonds and other opportunities, and lets users screen portfolios and universes based on values‑aligned themes and impact profiles.
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 Letters and Reviews and Ziggma both support?

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

Do Letters and Reviews and Ziggma require subscriptions?

Both Letters and Reviews and Ziggma keep freemium access with optional paid upgrades, so you can trial each platform before committing.

How can you access Letters and Reviews and Ziggma?

Both Letters and Reviews and Ziggma prioritize web or desktop access. Investors wanting a mobile-first workflow may need to rely on responsive web views.

What unique strengths set the two platforms apart?

Letters and Reviews differentiates itself with Quarterly **Fund Manager Letters** pages with the fund name, date, and a ‘Stocks Mentioned’ column (tickers link out for quick lookup)., Quarterly **13‑F pages** the author reads, with many entries including holdings tables and position‑change flags (e.g., NEW / Sold Out / % of portfolio)., and Lightweight **About** page clarifies the goal: stock‑idea discovery from letters; author shares links and invites tips via @_iinvested., whereas Ziggma stands out for Broker‑agnostic web portfolio tracker that consolidates multiple brokerage, IRA and 401(k) accounts into a single dashboard with performance, allocation, income and risk analytics for individual and combined portfolios., Secure account linking to 10,000+ banks and brokers (including Fidelity, Schwab, Robinhood, Webull, Coinbase and many plan sponsors) via Plaid and Snaptrade using OAuth; Ziggma never sees or stores login credentials and encrypts holdings data., and Dividend Tracker that aggregates cash flows and forward income across all linked accounts, monitors portfolio yield and payment timing, and lets users drill into income by holding..

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