VOL. XCIV, NO. 247

★ FINANCIAL TOOLS & SERVICES DIRECTORY ★

PRICE: 5 CENTS

Monday, November 10, 2025

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Tool Comparison

Similarweb vs USAspending comparison

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

Quick takeaways

Similarweb adds App & Website Traffic, and Sheets / Excel Add-ins coverage that USAspending skips.

USAspending includes Videos, and Other categories that Similarweb omits.

In depth comparison

Similarweb logo

Similarweb

similarweb.com

Hands-on review

Digital intelligence platform providing website and app traffic data, engagement benchmarks, and competitive insights. API access is sold separately or bundled with Enterprise plans, and is required for most native integrations (Excel, Sheets, Tableau, Power BI, Salesforce, HubSpot, Snowflake, Databricks). Webhooks support daily and monthly data release notifications. A free DigitalRank API offers basic website ranking data.

Platforms

WebAPI

Pricing

FreeSubscription

Quick highlights

  • Website traffic and engagement analytics, including keyword research, referral sources, and a free traffic checker tool.
  • APIs available in REST and Batch modes: REST delivers JSON responses, while Batch handles large CSV reports.
  • Webhook support for subscribing to daily or monthly data releases, with options to manage subscriptions directly.
  • Data Exporter for no-code bulk exports, including scheduled email delivery and CSV downloads.
  • Bulk input support for uploading CSV lists (up to ~1M entries per report) to create large exports.

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USAspending logo

USAspending

usaspending.gov

Official U.S. federal spending open‑data portal mandated by the DATA Act and operated by Treasury’s Bureau of the Fiscal Service. The public REST API powers the site (GET/POST endpoints, JSON responses). Data refreshes daily after a nightly pipeline; underlying source systems update on different cadences (e.g., monthly for Files A/B/C via the DATA Act Broker; next‑day for FPDS contracts; FABS within 2 weeks; FSRS subawards by month‑end; GTAS monthly). Bulk downloads and archives are available for awards back to FY2008.

Platforms

WebAPI

Pricing

Free

Quick highlights

  • Advanced Search & profiles across awards, recipients, agencies, federal accounts; filters include date, place of performance, NAICS/PSC, Assistance Listing (formerly CFDA), DEFC for COVID/infrastructure.
  • Spending Explorer and Agency/Federal Account profiles for top‑down views of obligations/outlays and drill‑downs by budget hierarchy.
  • Public REST API that powers the website (GET & POST endpoints; JSON responses); tutorial and contracts for commonly used endpoints.
  • Bulk data: Award Data Archive (pre‑generated, by agency/fiscal year), Custom Award Data, Custom Account Data, and full Database Download.
  • Award coverage: contracts, contract IDVs, grants, direct payments, loans, insurance, other financial assistance; prime awards and subawards (FSRS).

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Where they differ

Similarweb

Distinct strengths include:

App & Website TrafficSheets / Excel Add-ins
  • Website traffic and engagement analytics, including keyword research, referral sources, and a free traffic checker tool.
  • APIs available in REST and Batch modes: REST delivers JSON responses, while Batch handles large CSV reports.
  • Webhook support for subscribing to daily or monthly data releases, with options to manage subscriptions directly.
  • Data Exporter for no-code bulk exports, including scheduled email delivery and CSV downloads.

USAspending

Distinct strengths include:

VideosOther
  • Advanced Search & profiles across awards, recipients, agencies, federal accounts; filters include date, place of performance, NAICS/PSC, Assistance Listing (formerly CFDA), DEFC for COVID/infrastructure.
  • Spending Explorer and Agency/Federal Account profiles for top‑down views of obligations/outlays and drill‑downs by budget hierarchy.
  • Public REST API that powers the website (GET & POST endpoints; JSON responses); tutorial and contracts for commonly used endpoints.
  • Bulk data: Award Data Archive (pre‑generated, by agency/fiscal year), Custom Award Data, Custom Account Data, and full Database Download.

Feature-by-feature breakdown

AttributeSimilarwebUSAspending
Categories

Which research workflows each platform targets

Shared: Data APIs, APIs & SDKs, Data Visualizations

Unique: App & Website Traffic, Sheets / Excel Add-ins

Shared: Data APIs, APIs & SDKs, Data Visualizations

Unique: Videos, Other

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

Web, API

Pricing

High-level pricing models

Free, Subscription

Free

Key features

Core capabilities called out by each vendor

Unique

  • Website traffic and engagement analytics, including keyword research, referral sources, and a free traffic checker tool.
  • APIs available in REST and Batch modes: REST delivers JSON responses, while Batch handles large CSV reports.
  • Webhook support for subscribing to daily or monthly data releases, with options to manage subscriptions directly.
  • Data Exporter for no-code bulk exports, including scheduled email delivery and CSV downloads.
  • Bulk input support for uploading CSV lists (up to ~1M entries per report) to create large exports.
  • Dashboard and table exports in Excel, PDF, PPT, and PNG formats.

Unique

  • Advanced Search & profiles across awards, recipients, agencies, federal accounts; filters include date, place of performance, NAICS/PSC, Assistance Listing (formerly CFDA), DEFC for COVID/infrastructure.
  • Spending Explorer and Agency/Federal Account profiles for top‑down views of obligations/outlays and drill‑downs by budget hierarchy.
  • Public REST API that powers the website (GET & POST endpoints; JSON responses); tutorial and contracts for commonly used endpoints.
  • Bulk data: Award Data Archive (pre‑generated, by agency/fiscal year), Custom Award Data, Custom Account Data, and full Database Download.
  • Award coverage: contracts, contract IDVs, grants, direct payments, loans, insurance, other financial assistance; prime awards and subawards (FSRS).
  • Entity identifiers: UEI (replaced DUNS on Apr 4, 2022) used for recipients as the governmentwide identifier (via SAM.gov).
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Frequently Asked Questions

Which workflows do Similarweb and USAspending both support?

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

Do Similarweb and USAspending require subscriptions?

Both Similarweb and USAspending keep freemium access with optional paid upgrades, so you can trial each platform before committing.

How can you access Similarweb and USAspending?

Both Similarweb and USAspending 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?

Similarweb differentiates itself with Website traffic and engagement analytics, including keyword research, referral sources, and a free traffic checker tool., APIs available in REST and Batch modes: REST delivers JSON responses, while Batch handles large CSV reports., and Webhook support for subscribing to daily or monthly data releases, with options to manage subscriptions directly., whereas USAspending stands out for Advanced Search & profiles across awards, recipients, agencies, federal accounts; filters include date, place of performance, NAICS/PSC, Assistance Listing (formerly CFDA), DEFC for COVID/infrastructure., Spending Explorer and Agency/Federal Account profiles for top‑down views of obligations/outlays and drill‑downs by budget hierarchy., and Public REST API that powers the website (GET & POST endpoints; JSON responses); tutorial and contracts for commonly used endpoints..

Keep exploring

Keep exploring

Stay on top of related tools

Browse the categories and profiles that overlap most with this comparison to round out your shortlist.

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.