VOL. XCIV, NO. 247

★ A CURATED DIRECTORY OF FINANCIAL TOOLS ★

PRICE: 5 CENTS

Friday, December 12, 2025

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Tool Comparison

Firefly III vs Masttro comparison

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

Quick takeaways

Firefly III adds Webhooks, and Other coverage that Masttro skips.

Masttro includes Wealth Management, Portfolio Accounting / Book of Record, Client & Investor Reporting, Householding & Multi-Entity, Alternatives / Capital Calls & Distributions, Client Portal & Mobile App, Document Vault & e-Signature, Model Portfolios & Sleeves, Custom Dashboards, Data APIs, Broker Connectors, and Audit Trail / Supervision categories that Firefly III omits.

Firefly III has a free tier, while Masttro requires a paid plan.

Masttro offers mobile access, which Firefly III skips.

In depth comparison

Firefly III

firefly-iii.org

An open-source, self-hosted personal finance manager licensed under AGPLv3. Offers full double-entry bookkeeping, REST APIs, and optional event webhooks. Exchange-rate conversion is available from v6.2 onward as an opt-in feature. Bank connections are handled separately through the Firefly Data Importer app.

Platforms

WebAPI

Pricing

Free

Quick highlights

Self-hosted open-source personal finance manager (AGPLv3 license).
Supports double-entry bookkeeping with budgets, categories, tags, and detailed reporting.
Comprehensive REST API (JSON) with OAuth2 and Personal Access Tokens, plus a full OpenAPI specification.
Event webhooks for transaction create/update/delete, enabled through environment configuration.
Separate Data Importer tool supports CSV and CAMT.053, with optional bank integrations via Salt Edge, GoCardless, and SimpleFIN.

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Masttro

masttro.com

Full‑stack wealth OS for UHNW‑focused family offices, RIAs, private banks, and professional services firms. Combines 650+ direct custodian data feeds, multi‑entity portfolio analytics, alternatives lifecycle automation, cash management, compliance, secure client portals, and conversational AI across web and mobile. Licensing is fixed, non‑AUM annual subscription priced by client scope and configuration.

Platforms

WebMobileAPI

Pricing

Subscription

Quick highlights

Unified wealth OS for UHNW family offices, multi-family offices, wealth advisors, institutions, and professional services firms, delivering a single, accurate view of total net worth across all assets, geographies, currencies, and entity structures.
Direct data aggregation from 650+ proprietary custodian feeds (no screen scraping or third-party intermediaries), powering verified daily transaction and position data across bankable and non-bankable assets.
Supports a wide range of asset classes and entity structures—including traditional securities (cash, bonds, mutual funds, public equities), alternatives (direct investments, private equity, hedge funds, venture capital, private credit), real estate, and lifestyle assets such as art, jewelry, and vehicles.
Portfolio Management and Consolidated Portfolio Analysis modules provide holistic account views, multi-custodian performance analytics, FX-aware dashboards, and integrated cash-flow projections with filtering by legal entity, family member, manager, and more.
Cash Management Registry centralizes uncategorized deposits and withdrawals, maintains detailed records of capital calls, distributions, fees, and closed-end fund cash flows, and lets users review history and export transactions for full cash-flow auditability.

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Where they differ

Firefly III

Distinct strengths include:

Webhooks Other

Self-hosted open-source personal finance manager (AGPLv3 license).
Supports double-entry bookkeeping with budgets, categories, tags, and detailed reporting.
Comprehensive REST API (JSON) with OAuth2 and Personal Access Tokens, plus a full OpenAPI specification.
Event webhooks for transaction create/update/delete, enabled through environment configuration.

Masttro

Distinct strengths include:

Unified wealth OS for UHNW family offices, multi-family offices, wealth advisors, institutions, and professional services firms, delivering a single, accurate view of total net worth across all assets, geographies, currencies, and entity structures.
Direct data aggregation from 650+ proprietary custodian feeds (no screen scraping or third-party intermediaries), powering verified daily transaction and position data across bankable and non-bankable assets.
Supports a wide range of asset classes and entity structures—including traditional securities (cash, bonds, mutual funds, public equities), alternatives (direct investments, private equity, hedge funds, venture capital, private credit), real estate, and lifestyle assets such as art, jewelry, and vehicles.
Portfolio Management and Consolidated Portfolio Analysis modules provide holistic account views, multi-custodian performance analytics, FX-aware dashboards, and integrated cash-flow projections with filtering by legal entity, family member, manager, and more.

Feature-by-feature breakdown

Attribute	Firefly III	Masttro
Categories Which research workflows each platform targets	Shared: Portfolio, APIs & SDKs Unique: Webhooks, Other	Shared: Portfolio, APIs & SDKs Unique: Wealth Management, Portfolio Accounting / Book of Record, Client & Investor Reporting, Householding & Multi-Entity, Alternatives / Capital Calls & Distributions, Client Portal & Mobile App, Document Vault & e-Signature, Model Portfolios & Sleeves, Custom Dashboards, Data APIs, Broker Connectors, Audit Trail / Supervision
Asset types Supported asset classes and universes	Other	Stocks, Bonds, Mutual Funds, Hedge Funds, Private Funds, Real Estate, Cryptos, Other
Experience levels Who each product is built for	Beginner, Intermediate, Advanced	Advanced
Platforms Where you can access the product	Web, API	Web, Mobile, API
Pricing High-level pricing models	Free	Subscription
Key features Core capabilities called out by each vendor	Unique Self-hosted open-source personal finance manager (AGPLv3 license). Supports double-entry bookkeeping with budgets, categories, tags, and detailed reporting. Comprehensive REST API (JSON) with OAuth2 and Personal Access Tokens, plus a full OpenAPI specification. Event webhooks for transaction create/update/delete, enabled through environment configuration. Separate Data Importer tool supports CSV and CAMT.053, with optional bank integrations via Salt Edge, GoCardless, and SimpleFIN. CSV export available for accounts, budgets, categories, tags, recurring transactions, subscriptions, piggy banks, rules, and more.	Unique Unified wealth OS for UHNW family offices, multi-family offices, wealth advisors, institutions, and professional services firms, delivering a single, accurate view of total net worth across all assets, geographies, currencies, and entity structures. Direct data aggregation from 650+ proprietary custodian feeds (no screen scraping or third-party intermediaries), powering verified daily transaction and position data across bankable and non-bankable assets. Supports a wide range of asset classes and entity structures—including traditional securities (cash, bonds, mutual funds, public equities), alternatives (direct investments, private equity, hedge funds, venture capital, private credit), real estate, and lifestyle assets such as art, jewelry, and vehicles. Portfolio Management and Consolidated Portfolio Analysis modules provide holistic account views, multi-custodian performance analytics, FX-aware dashboards, and integrated cash-flow projections with filtering by legal entity, family member, manager, and more. Cash Management Registry centralizes uncategorized deposits and withdrawals, maintains detailed records of capital calls, distributions, fees, and closed-end fund cash flows, and lets users review history and export transactions for full cash-flow auditability. Portfolio Management Center supports model portfolios, firm-wide investment policies, risk and concentration limits, diversification rules, restrictions, and user-defined blended benchmarks to monitor drift and keep portfolios within mandate.
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 Firefly III and Masttro both support?

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

Which tool offers a free plan?

Firefly III offers a free entry point, while Masttro requires a paid subscription. Review the pricing table to see how the paid tiers compare.

Which tool has mobile access?

Masttro ships a dedicated mobile experience, while Firefly III focuses on web or desktop access.

What unique strengths set the two platforms apart?

Firefly III differentiates itself with Self-hosted open-source personal finance manager (AGPLv3 license)., Supports double-entry bookkeeping with budgets, categories, tags, and detailed reporting., and Comprehensive REST API (JSON) with OAuth2 and Personal Access Tokens, plus a full OpenAPI specification., whereas Masttro stands out for Unified wealth OS for UHNW family offices, multi-family offices, wealth advisors, institutions, and professional services firms, delivering a single, accurate view of total net worth across all assets, geographies, currencies, and entity structures., Direct data aggregation from 650+ proprietary custodian feeds (no screen scraping or third-party intermediaries), powering verified daily transaction and position data across bankable and non-bankable assets., and Supports a wide range of asset classes and entity structures—including traditional securities (cash, bonds, mutual funds, public equities), alternatives (direct investments, private equity, hedge funds, venture capital, private credit), real estate, and lifestyle assets such as art, jewelry, and vehicles..

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