Watt Data vs SparkToro.
SparkToro told us which podcasts and subreddits our audience follows. What are those people actually buying, and what should the offer be?Takes a description of an audience and returns the websites, social accounts, podcasts, YouTube channels and subreddits they engage with.
Takes a plain description of your company or product and returns how many people buy in your category, what they are shopping for, and how you should reach them.
SparkToro reads where people spend their attention. Watt reads what they spend money on.
Both products work the same way from your side. Describe an audience in plain language and a report comes back, with nothing to connect and nothing to upload. What differs is who each one can tell you about. SparkToro reads where people go online, from opt-in clickstream panels run by its partner Datos plus public LinkedIn profiles. The panel is browser-based, so app activity sits outside it: SparkToro states "We don't have app data."
You get back a media plan. Which sites the group visits, which accounts they follow, which podcasts and YouTube channels they listen to and watch, which subreddits they subscribe to, and which search terms and AI prompts they use, each ranked against the national average, so a large site only appears if this group visits it more than everyone else does.
Watt reads transactions and search rather than page visits, so it answers what comes next: what the group is buying, what they are in-market for now, how many of them there are, what they will pay, and which offers people respond to. SparkToro names the channels. Watt names the claim and the offer that should run in them.
Watt Data vs. SparkToro
What Watt does that SparkToro does not
Tell you what the audience buys. SparkToro's two published sources are web visits and public profiles. Purchases are not among the categories it publishes, so what a group spends money on sits outside the report.
Tell you what to charge and what to offer. What this group will pay and the offers that resonate, read from what they buy elsewhere in the market.
Read your own customers next to the market. Connect your customer list and Watt places your buyers inside the category: which segments they fall into, how large each one is, and who else in the market resembles them.
Answer the follow-up. A SparkToro report is a report, and refining the audience and running it again spends another report from your monthly allowance. Ask Watt a second question about the same audience and it works through that one too.
What SparkToro does that Watt does not
Name the specific channels that reach a group. The websites, podcasts, YouTube channels, subreddits and social accounts an audience engages with, ranked by how far they over-index against the national average. That is a media plan's worth of detail Watt does not produce.
Cover Canada and the United Kingdom. Watt's data is US adults. SparkToro covers English-language audiences in three countries and supports narrowing a query to a city or region inside them.
Show which search terms and AI tools an audience uses. Search keywords with volume and cost, the AI prompt topics associated with a group, and which discovery tools the group has moved to, measured against the national average.
Turn a report into a set of next steps. Take Actions supplies around 20 templates across positioning, content, conversion, social, PR and search visibility, and Persona Builder turns up to three reports into shareable buyer personas.
Should you use Watt or SparkToro?
When the question is where to show up. Which podcasts to sponsor, which newsletters to pitch, which creators an audience already follows, which subreddits carry the conversation. SparkToro answers that from clickstream and profile data and names specific properties, which is exactly what a media plan needs. A free tier gives three previews a month, so the answer is cheap to sample.
When the question is what to sell and what to say. What the group is buying now, how many US adults fit, what they will pay, which offers resonate, and which attributes separate your buyers from everyone else. Closer to a data analyst than to another tool in the stack: ask a question in plain language and Watt works through the answer with you.
These are the two products most likely to be confused with each other, and they overlap less than they look like they do. SparkToro tells you which channels reach a group. Watt tells you what that group is buying and what a message aimed at them should claim. Run the SparkToro report to build the media plan, and run Watt to work out what the creative in it should say and who else belongs in the target.
Questions, answered
Is Watt Data an alternative to SparkToro?
For some questions, yes. For the media plan, no. The two work the same way from your side: describe an audience in plain language, get a report, connect nothing. SparkToro returns where that audience pays attention, naming the websites, podcasts, YouTube channels, subreddits and social accounts they engage with, each ranked against the national average. Watt does not produce any of that, so if you are building a media plan, Watt is not a replacement. Watt returns the other half: what the audience buys, how many US adults fit, what they will pay and what an ad should claim.
How much does SparkToro cost?
Free for 3 previews a month with preview data only, then $38 a month billed yearly for full data. Personal is $38 a month, $450 a year, for 4 reports and one user. Business is $112 a month, $1,344 a year, for 25 reports and 10 users, and adds Persona Builder and the Take Actions templates. Agency is $225 a month, $2,700 a year, for 250 reports and 100 users. Editing an audience and running it again spends another report from the monthly allowance. The API is a separate product sold on pay-as-you-go credit bundles with no subscription. The free tier's preview data is the way to sample before paying. Watt is free to try.
Does SparkToro have purchase data?
No purchase or transaction source appears anywhere in what SparkToro publishes. Its two named sources are "large panels of real people showing the websites and online content they actually visit" and "Public professional profile information." The collection is browser-based, recording "the URLs they visit," with no app data. The published report categories run to demographics, social accounts, websites, press, YouTube, podcasts, Reddit, apps and AI tools, search keywords, prompt topics and market size, and none of them covers what people buy. A "Buying Behavior" section does appear in SparkToro's personas, but persona sections are labeled either as SparkToro data or as AI-interpreted, and which label that one carries is not published. None of that is a denial, only an absence in what they publish.
What does SparkToro not do?
It does not cover audiences outside three countries, and it publishes limits on its own accuracy. The geographic boundary is stated: coverage is English-language audiences in the United States, Canada and the United Kingdom, and "Audiences in other countries or languages are not yet supported," with expansion expected in 2027. On accuracy, SparkToro describes its results as "directional rather than exact," notes that "Very niche audiences draw from smaller samples and can be noisier," and advises users to "validate the highest-stakes decisions against your own first-party data."
Can I use Watt and SparkToro together?
Yes. Run SparkToro first, then Watt. Its report tells you where the audience already pays attention. Paste that audience description into Watt and ask what those people are buying, how many of them exist across US adults, what they will pay, and which claim to lead with. One report builds the media plan and the other writes the brief that runs inside it.