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Exa vs Tomba

An independent, review-free comparison compiled by the SaaSTracker editorial team. Both products are profiled in full, and neither can pay for placement here.

The short answer

Both sides assessed

Exa compared with Tomba

Both are API-first with flat published usage pricing and no tier ladder, and both are honest about what they charge for. Tomba is far cheaper for the specific job of turning a name and a domain into a verified email, at 0.0089 against Exa's 0.02, and ships ten SDKs across fourteen endpoints. Exa cannot be beaten on discovering which companies to target in the first place. The sensible answer for many teams is both: Exa to build the set, Tomba to resolve the addresses.

Tomba compared with Exa

Both are API-first and both publish flat usage pricing rather than tiers, but they answer different questions. Exa searches the live web semantically and enriches what it finds, at 7 dollars per thousand searches with contact enrichment at 0.02 for an email and 0.07 for a phone. Tomba queries a pre-built index of published addresses at 0.0089 per email. Exa is better when you do not yet know which companies you want; Tomba is much cheaper once you do.

Choose Exa if

Technical teams and operators building list discovery or research into their own workflow, anyone whose prospecting question is a description rather than a filter, and buyers who want commodity pay-as-you-go pricing with no subscription and no expiring credits.

Choose Tomba if

Developers and technical small teams building email finding, verification, or enrichment into their own product or internal tooling, and high-volume buyers who want a flat per-thousand price with twelve-month credit validity rather than a tier ladder.

Side by side

13 attributes
AttributeExaTomba
CategoryDataData
Starting price$0 ($20 in free credits on signup plus $10 monthly), then $7 per 1,000 searches (free plan available)$0 (25 free searches per month, plus 75 free API credits on signup), then $8.90 per 1,000 credits (free plan available)
Pricing modelPure pay-as-you-go usage pricing with every operation individually published, no subscription, no minimum spend, no tiers, and no expiring credits.Usage-priced credits at a flat rate per thousand, bought as a monthly subscription or as a one-time block, with twelve-month credit validity and no conventional tier ladder.
Free planAn additional $10 in credits every month on top of the signup grant, which makes genuinely light usage permanently free.25 searches per month with no credit card required, plus 75 API credits granted on signup.
Free trial$20 in free credits on account creation, roughly 2,800 searches, with no card required to start75 free API credits on signup with no card required, alongside a permanent free tier of 25 searches a month
Best forTechnical teams and operators building list discovery or research into their own workflow, anyone whose prospecting question is a description rather than a filter, and buyers who want commodity pay-as-you-go pricing with no subscription and no expiring credits.Developers and technical small teams building email finding, verification, or enrichment into their own product or internal tooling, and high-volume buyers who want a flat per-thousand price with twelve-month credit validity rather than a tier ladder.
Setup timeTwenty minutes to a first useful result: create an account, take the 20 dollars of free credit, and call search from Python or JavaScript. A production Websets pipeline with verification rules and custom enrichments is a few days of work rather than an afternoon.Fifteen minutes to a first API call: sign up, take the 75 free credits, pull an SDK, authenticate with the key and secret pair. The browser extension takes five. A production integration is a day or two depending on how many endpoints you use.
Learning curveModerate to high by this category's standards, and the difficulty is conceptual rather than technical. Writing a good described query and a good verification rule is a skill, and a badly specified set returns plausible-looking results that quietly fail your criteria. Teams used to filter dropdowns will need to change how they think about list building.Low for a developer and moderate for anyone else. The endpoint set is well enumerated and the SDKs are conventional. The concept that needs learning is the credit multiplier: emails cost one and phones cost five, so a phone-heavy workload burns a budget four times faster than the headline rate suggests.
PlatformsREST API, Python and JavaScript clients, Web dashboard, WebhooksREST API, Browser extension, Web application, Ten official SDKs
ComplianceZero Data Retention available through enterprise arrangementsGDPR stated by the vendor
Founded20212021
HeadquartersSan Francisco, California, United StatesClaymont, Delaware, United States
OwnershipVenture-backed, operating as Exa Labs Inc.Privately held and independent

Strengths and limitations

Exa

Strengths

  • The only product in this category that answers a described query rather than a filtered one, which makes previously unbuildable target lists buildable.
  • Verification runs before enrichment in Websets, so contact spend lands only on results that already passed your criteria.
  • Pure pay-as-you-go with no subscription, no minimum spend, no tiers, and nothing to expire, which is the cleanest commercial model in this batch.
  • Every operation individually priced and published, from 1 dollar per thousand page fetches to 0.07 per phone number, so any workload can be modelled precisely before it is run.

Limitations

  • Contact data is expensive per unit: 0.02 dollars an email is more than twice Tomba's rate, and 0.07 a phone is well above CUFinder's or SalesQL's effective rates.
  • It is not a contact database, so there is no fixed people index to filter by title and seniority and no guarantee that a given person is findable at all.
  • No match rate is published for either email or phone enrichment, and Exa does not state what happens when an enrichment itself returns nothing.
  • Non-technical users will struggle; the dashboard exists but the product is designed to be called from code and the documentation is written for developers.

Tomba

Strengths

  • A flat 8.90 dollars per thousand credits at every volume, which removes tier guessing entirely and is the cheapest published per-email rate in this batch.
  • Explicit and correct billing rules: no charge for a failed search, no charge for a duplicate search inside the same month, and one credit per valid email.
  • Twelve-month credit validity plus a one-time purchase option, so a finite project does not need a subscription it will forget to cancel.
  • Ten official open-source SDKs across Python, Node.js, PHP, Ruby, Go, Java, Dart, Lua, R, and Elixir, which is broader language coverage than any competitor here.

Limitations

  • The interface is a secondary concern; non-technical sales users will find Skrapp, SalesQL, or GetProspect better places to work.
  • Phone lookups at five credits are poor value against SalesQL's single-credit pool if calling is your main channel.
  • No searchable people database to filter by title and seniority, so Tomba answers questions about people you can already name rather than helping you decide who to contact.
  • No per-second or per-minute API rate limits are published, only an uptime figure and a response-time claim, which is a real gap for a product sold primarily on its API.

Pricing compared

Exa

Pure pay-as-you-go usage pricing with every operation individually published, no subscription, no minimum spend, no tiers, and no expiring credits.

  • Free credits$0
  • Search$7
  • Contents and Answer$1 to $5
  • Deep Search and Monitors$12 to $15
  • Agent$0.012 to $1.00
  • EnterpriseCustom

Compared as a contact data vendor, Exa is expensive: 1,000 emails costs 20 dollars against Tomba's 8.90, and 10,000 costs 200 against Tomba's 89. Phone numbers at 0.07 are 70 dollars per thousand and 700 per ten thousand, more than CUFinder's 299 for 10,000 mixed credits and well above SalesQL's 119 for 12,000. On that axis Exa loses to most of this batch. But that comparison misreads the product. What you are actually buying is the ability to find companies that no filter can describe, verify each one against your own criteria, and only then pay to enrich the survivors, with a research and monitoring layer on the same bill and no subscription underneath any of it. Nothing else in this category does that at any price. For a team whose bottleneck is knowing who to contact rather than how to reach them, 7 dollars per thousand searches with 10 dollars free every month is exceptional value. For a team that already has the list, it is simply the wrong tool.

Tomba

Usage-priced credits at a flat rate per thousand, bought as a monthly subscription or as a one-time block, with twelve-month credit validity and no conventional tier ladder.

  • Free$0
  • Growth$89
  • Custom volume$8.90 per 1,000 credits

Tomba is the cheapest published per-unit price in this batch and one of the cheapest anywhere self-serve. At 1,000 verified emails a month you spend 8.90 dollars in finder credits, roughly 0.0089 per address, against Skrapp at 0.0145, GetProspect at 0.034, and Hunter's Starter at about 0.025 euros. At 10,000 emails a month you spend 89 dollars, well under Hunter's Growth tier at 149 euros for the same volume and better than any tier-laddered competitor here. Phone numbers are the weak point: at five credits, 1,000 mobiles costs 44.50 dollars and 10,000 costs 445, which is respectable in absolute terms but four to five times SalesQL's single-credit pool. The honest summary is that Tomba is the best price per email in this batch and a middling price per phone, and it is worth the switch mainly if you are calling the API rather than clicking a button, because the interface does not justify the move on its own.

Editorial verdict on each

Exa

Innovation

Exa is the odd one out in this category and the most interesting thing in it. It does not sell a contact database, it sells the ability to ask the live web a question no filter can express, verify each answer against your own criteria, and attach an email or a phone number to the results that survive. Priced purely per operation with 10 dollars free every month, no subscription, and nothing that expires, it is the most transparent commercial model here by a distance, and a Series C at a 2.2 billion valuation means the API will still be there in three years. The honest caveats are that contact data costs more than twice Tomba's rate, there is no published match rate, the compliance documentation is written for a search company rather than a data vendor, and a non-technical salesperson will not enjoy using it. Buy Exa when the problem is deciding who to contact. Buy something cheaper when the problem is only how to reach them, and consider running both, which is what the teams getting the most out of it actually do.

Read the full Exa profile

Tomba

Tomba is the best-value email lookup in this batch and the only one in it genuinely built for developers. Eight dollars ninety per thousand credits at every volume, with failed and duplicate searches free and credits valid for twelve months, gives an honest cost of under a cent per verified address, and ten open-source SDKs across fourteen endpoints is more API surface than anyone else here offers. The Author Finder endpoint and the Clearbit-compatible person and company endpoints are real differentiators rather than list padding. What is missing is everything around the API. There are no published rate limits, no seat terms, no searchable people database, no sequencer, a thin interface, and almost nothing disclosed about who runs the company. Phone lookups at five credits are middling value. Buy Tomba if code is calling it and price per verified email is the number that matters. Do not buy it as the tool a salesperson opens in the morning, and do not buy it as your phone data provider.

Read the full Tomba profile

Exa profile last reviewed 2026-08-22; Tomba last reviewed 2026-08-22. Pricing is compiled from public sources and can change without notice. See our methodology.