Both products help creators and talent teams find brands already buying YouTube sponsorships. The useful comparison is how each turns that history into a pitch list.
The short version
SponsorRadar: SponsorRadar is a YouTube sponsorship database for creators and agencies. It publishes brand and channel directories, sponsorship histories, estimated deal values, similar-channel research, outreach tools, and roster overlap. Its current introductory pricing is $29 per month for creators and $99 per month for agencies after a $1 seven-day trial.
Sponsorbook: Sponsorbook is a buyer-first research workspace for creators and talent teams. Search sponsoring brands, inspect the public YouTube evidence behind each relationship, save lists, watch new activity, and request the relevant partnership contact. Starter is $29 per month and Pro is $99 per month, with lower annual pricing and no fee on deals.
This is the most direct product comparison in the set. Choose based on the research workflow you prefer: SponsorRadar emphasizes scale, estimated values, and outbound execution; Sponsorbook emphasizes inspectable sponsorship evidence, brand research, saved monitoring, and fit against a connected channel.
At a glance
SponsorRadar
Sponsorbook
Primary user
YouTube creators and agencies
Creators and talent teams
Core database
Brands, channels, and sponsorship history
Brands, creators, and sponsorship evidence
Evidence
Dated sponsorship events and source videos
Public video and sponsor segment
Research angle
Similar channels, deal values, roster overlap
Buyer activity, lists, watches, and channel fit
Contacts
Brand contact database
Request and reveal partnership contacts
Creator plan
$29/mo after introductory trial
$29/mo, free search first
Agency plan
$99/mo for up to 10 creators
$99/mo Pro
What SponsorRadar is
SponsorRadar is a purpose-built YouTube sponsorship database. Its public directory shows brands, channels, and dated sponsorship activity, while the paid product adds full histories, estimated deal values, similar-channel discovery, brand contacts, personalized pitch support, and Gmail outreach. The agency product extends that model across a roster with overlap and fit signals for up to ten creators.
Its strongest proposition is speed from research to outreach. A creator can find sponsors that have already paid comparable channels, estimate the commercial range of those deals, and move into a pitch workflow without assembling the evidence manually. Agencies get a roster-level view of brands that already fit more than one client.
What Sponsorbook is
Sponsorbook organizes disclosed YouTube sponsorships into a research workspace built around the buyer. A brand profile connects recent activity, sponsored creators, public video evidence, and the exact sponsor segment. You can turn that research into saved lists, watch brands for new activity, and request the partnership contact when you are ready to act.
A connected YouTube channel adds Fit on brand profiles and a Personalized sort in discovery. This helps a creator or manager move from a large catalogue to brands whose past buying patterns are relevant to the active channel. The free plan exposes a real search with three visible brands; Starter opens the catalogue, and Pro adds CSV, seats, a larger contact-reveal pool, and MCP access.
The practical difference
SponsorRadar and Sponsorbook start from similar public signals, so the decision comes down to the working surface. SponsorRadar combines a large public directory with estimated deal values, media-kit and pitching tools, Gmail integration, and explicit roster overlap. It is well suited to a creator or agency that wants prospecting and outreach in one motion.
Sponsorbook keeps the primary evidence close to every conclusion. The brand record is designed for checking what happened, seeing how the buyer behaves over time, organizing research across lists and watches, and then using optional channel fit to prioritize the next account. That is particularly useful when a pitch depends on a precise reference to a brand's recent activity rather than a generic category match.
Pricing is currently close enough that cost should not decide this comparison. Test the same five target brands in both products and compare coverage, evidence quality, contact availability, and how quickly each product produces a defensible outreach list.
Who should choose which
Choose SponsorRadar if
You want estimated deal values. SponsorRadar places value estimates directly on sponsorship records and uses them in agency pricing research.
You want outreach inside the same product. Its creator plan includes Gmail integration, pitch templates, and media-kit tooling alongside sponsor discovery.
You manage a roster of up to ten creators. The agency plan is built around cross-roster overlap and brand recommendations for each creator.
Choose Sponsorbook if
You research from the buyer outward. Sponsorbook brings a brand's activity, creators, similar brands, and public sponsorship evidence into one record.
You need evidence you can inspect. Open the public video and sponsor segment behind a relationship before you use it in a pitch.
You want monitoring built into research. Lists and watches keep promising brands organized as their sponsorship activity changes.
You want research in your agent workflow. Pro includes MCP access to the same customer-visible catalogue inside your workspace.
SponsorRadar currently advertises a $1 seven-day trial followed by an introductory $29 per month Creator plan or $99 per month Agency plan. Sponsorbook offers a free limited search, $29 per month Starter, and $99 per month Pro, with annual plans at $23 and $79 per month respectively.