Blitz vs MoltSets vs Apollo

Disclosure: Modern Inbound, which publishes Modern Leads, is a paying customer of both MoltSets and Blitz. Every figure below comes from the vendors' public pages, not from our accounts.

Websites: Blitz, MoltSets and Apollo.

• Lowest entry price: MoltSets, at $27 a month.✓
• Lowest cost per record at volume: Blitz, because its plans count records in the hundreds of thousands and millions.✓
• Phone numbers without a per-phone fee: Blitz, for United States numbers on a paid plan.✓
• One app for data, sequencing and pipeline: Apollo.✓
• Largest advertised database: Apollo, with 240M contacts and 30M companies as its own stated totals.✓

At a glance: 7 decisions

Decision	Better fit	Why
Cheapest way to start	MoltSets	$27 a month for Solo, against $49 per seat for Apollo Basic and $99 for Blitz Start.✓
Lowest cost per record at volume	Blitz	$99 covers a fair use policy of 200,000 records a month.✓
Phone numbers	Blitz for US numbers, otherwise compare	Blitz includes US phone numbers in its record count, while MoltSets charges $0.15 per token and Apollo charges eight credits.✓
Request speed you can read off the page	Blitz	It publishes 10 requests per second per endpoint on Start and 25 on Scale.✓
Data inside Claude or your own scripts	Blitz or MoltSets	Both describe working with Claude.✓
Find, sequence and track in one app	Apollo	Sequencing and pipeline tools are included even at entry level.✓
Free option to try	All three	Blitz gives 1,000 free records, MoltSets has a free plan and Apollo has a free Starter plan.✓

Cost per record, with the arithmetic

The three tools bill in three different units, so a single "cost per record" number would mislead. Here is each one, worked from the published prices.

Blitz bills a flat monthly plan, and says many B2B data APIs charge per credit instead.✓ Start is $99 a month with a fair use policy of 200,000 records a month, and Scale is $499 a month with 5,000,000.✓ A record is one company, one person, one email address, one phone number or one job posting, and a call that finds nothing counts nothing.✓

• Blitz Start, fully used: $99 ÷ 200,000 = about $0.0005 per record.✓
• Blitz Scale, fully used: $499 ÷ 5,000,000 = about $0.0001 per record.✓

MoltSets sells plans that differ only by rate limit, which is how many records you can return every 5 hours.✓ Solo is $27 a month for 1k records per 5 hours, Pro is $97 for 15k, Team is $397 for 150k and Max is $997 for 225k.✓

• MoltSets Solo at 30,000 records a year: $27 × 12 = $324, and $324 ÷ 30,000 = about $0.0108 per record.✓
• MoltSets Solo at its ceiling: 1,000 × 24 ÷ 5 = 4,800 a day, so about 144,000 a month over 30 days, and $27 ÷ 144,000 = about $0.0002 per record. This is a theoretical ceiling, and the plans are subject to a fair use policy.✓
• MoltSets Pro at its ceiling: 15,000 × 24 ÷ 5 = 72,000 a day, about 2,160,000 a month, and $97 ÷ 2,160,000 = about $0.00004 per record, on the same caveat.✓

Apollo prices per seat and meters usage in credits. Basic is $49 per seat per month billed annually with 30,000 credits per seat per year, and Professional is $79 with 48,000.✓ An email costs 1 credit and a mobile number costs 8 more.✓

• Apollo Basic, per credit: $49 × 12 = $588 a year, and $588 ÷ 30,000 = about $0.0196 per credit, so an email is about $0.02.✓
• Apollo Professional, per credit: $79 × 12 = $948 a year, and $948 ÷ 48,000 = about $0.0198 per credit.✓

Side by side, at two volumes

The reading is straightforward. At light volume the entry plans rank MoltSets, then Apollo, then Blitz, because Blitz's lowest plan is $99. At heavy volume Blitz and MoltSets both fall to a fraction of a cent per record, while Apollo's per-credit price stays near two cents because credits are granted per seat.✓ MoltSets' heavy-use figure depends on what its fair use policy actually allows, which we couldn't establish from the pages we read.

Mobile numbers

• Blitz: a phone number is one record inside the plan's allowance, so about $0.0005 at Start if fully used. It lists 45M+ United States direct dials and mobiles, and the phone endpoints come with a paid plan, not the trial.✓
• MoltSets: phone tokens are $0.15 each, billed on top of a paid plan, and a token is spent only when a mobile is found.✓
• Apollo: 8 credits × $0.0196 = about $0.157 on Basic.✓

If United States mobiles are a large part of your outbound, this is where Blitz pulls ahead. Its figure covers United States numbers only.✓

Flexibility

Blitz is built to be wired into your own stack. It says every plan opens every endpoint and every data type, and that plans differ by speed, fair use policy and support, never by data.✓ Its MCP page says you add one URL to Claude, Cursor or VS Code and sign in.✓ Plans are priced by speed and fair use policy, not by seat.✓

MoltSets says it has no interface and describes itself as data only.✓ It lists Claude, Clay, Codex and a terminal as places to set it up, and it offers flat files on request, quoted per record and billed outside your plan.✓

Apollo is the one with an interface. It offers a free Starter plan and a path to a custom plan for enterprise or complex needs, and it runs a data reseller program for embedding B2B data in other products.✓

Speed

The pages measure speed differently, so we can't rank the three on one number.

• Blitz publishes requests per second per endpoint: 10 on Start and 25 on Scale. At 10 requests per second that is 600 a minute and 36,000 an hour per endpoint, and Blitz says a live lookup feels instant, with the difference showing on batch runs.✓
• MoltSets publishes records per 5 hours: 1k on Solo and 225k on Max.✓ That is 200 an hour on Solo and 45,000 an hour on Max. It describes flat-rate plans with high rate limits built for scale.✓
• Apollo publishes credits, not a rate, on the pages we read.

Blitz counts requests and MoltSets counts records, so the numbers aren't directly comparable. None of the three publishes response times, so we can't rank them on latency.

Where Apollo is better

Apollo is the stronger choice when the purchase is about running outreach, not only buying data. Its pricing page says even entry-level pricing includes a full sequencing platform and pipeline tools.✓ It advertises access to 240M contacts and 30M companies, which are its own stated totals and not a measure of coverage in your target accounts.✓ On enrichment it lists more than 30 data points and draws on its own network, third-party sources and real-time web data.✓ Blitz and MoltSets are data suppliers; neither describes a sequencer.

Where each one falls short

• Blitz: the entry price is $99 a month, and a record count that large only pays off when you use it. Start and Scale don't carry an SLA, which is reserved for the custom tier starting at $999 a month.✓ Its phone coverage is listed for the United States.
• MoltSets: it is in public beta, which matters at the center of an established process.✓ It has no interface, and mobile numbers are an add-on to a paid plan.✓
• Apollo: credits are granted per seat, so a mobile-heavy workflow burns credits at eight a number, and the free option is positioned for light use.✓

Who builds them

Blitz's About page names Antoine Blitz as founder and describes a small team of builders, engineers and operators.✓ We couldn't find a page on moltsets.com that names the team, so we say nothing about who builds it. We didn't research Apollo's team for this comparison.

Which should you pick?

Pick Blitz if you run outbound at volume, want United States phone numbers inside the plan price, want a published request rate and an MCP connection, and can use a plan with 200,000 records a month.✓

Pick MoltSets if you want the cheapest way to start, your volume is modest or bursty, you already have a sequencer or Clay setup, and you can accept a product in public beta.✓

Pick Apollo if you want one app that finds contacts, sequences outreach and tracks deals, and a user interface matters to your team.✓

Before you decide, test each on a sample of your own target accounts, because published totals and allowances don't show how many of your records each tool will actually find.

FAQ

How we researched this

We read each company's own public pages and every factual claim links to its source. Costs are calculated only from the published numbers shown, with the arithmetic on the page. Vendor descriptions are treated as vendor claims.

How Modern Inbound can help

Modern Inbound hands over warm leads. If you're deciding how to source and use contact data for outbound, use this comparison to frame the conversation.