How much does data enrichment cost? Flat-rate vs per-credit pricing
TL;DR
For steady or high-volume email enrichment, flat-rate wins on predictability and cost.
Per-credit wins when a free tier covers your volume (under about 100 lookups a month) or when most of what you buy is mobile numbers.
If you enrich every month or run AI agents, use flat-rate. MoltSets is $27/mo with no per-lookup credits, within weekly fair use limits.
If you enrich a few dozen records a month, use a per-credit free tier. Prospeo gives 100 credits a month and Apollo 900 a year.
If most of your lookups are mobiles, compare per-mobile rates first. LeadMagic has offers 1k mobiles for $99/month
If you want a full sales platform, accept per-seat credits. Apollo bundles sequencing and dialing with its credits.
Why do enrichment tools charge per credit?
Enrichment tools charge per credit because their costs scale per record.
Most buy data from upstream providers or run waterfalls across several sources, and each successful match costs them money.
Credits also let vendors price data types differently.
Mobiles are harder to source and verify than emails, so they cost more credits: 5 at LeadMagic and Lusha, 8 at Apollo, and 10 at Prospeo, FullEnrich, and Findymail.
For buyers, credits lower the barrier to starting. You can test a tool on a free tier or a small plan without committing to a monthly fee you might not use.
What does per-credit pricing actually cost?
Per-credit pricing means you buy a pool of credits and spend them on each lookup: usually 1 credit for an email and 5 to 10 for a mobile. The headline plan price is rarely the real cost, because four things push it up.
Credits expire. Apollo and Prospeo credits don't roll over, so any you don't use in the cycle are lost. Others are more generous: FullEnrich rolls credits over for 3 months (12 on annual plans) and LeadMagic banks up to two months.
Credits are tied to seats. Apollo grants credits per seat (2,500 a month on Basic), and Prospeo prices per user. Once you use your allocated credits you need to buy more.
Some tools meter twice. Clay charges separately for actions (platform usage) and data credits (the data itself). Its Launch plan starts at $167/mo for 180,000 actions and 30,000 data credits a year.
Cost rises in step with usage. Every extra lookup costs money, so a successful campaign that needs ten times the data costs roughly ten times as much.
What does flat-rate pricing actually cost?
Flat-rate pricing means one fixed monthly fee for enrichment up to a usage limit, with no per-lookup credits. Your bill is the same whether you run 1,000 lookups or 20,000.
Two examples:
MoltSets is $27/mo for email enrichment, with higher tiers at $97, $397, and $997. Records only count against your limit when a real contact comes back.
BlitzAPI is $399, $499, or $599/mo, unlimited within its rate limits. Emails start on the $499 plan and US phone numbers on the $599 plan.
There are, however, trade-offs worth considering:
Usage limits. Flat-rate isn't infinite. MoltSets' fair use policy caps the $27 plan at 5,000 enriched records a week, about 21,500 a month. Blitz limits requests per second.
You pay in quiet months. If you enrich nothing for a month, you still pay the fee.
Mobiles may still be metered. MoltSets sells mobiles as add-on tokens at $0.15 each, which roll over. Blitz includes phones only on its top plan, and only for US numbers.
Entry price varies widely. Flat-rate isn't automatically cheap: Blitz's email plan costs more than most per-credit plans at low volume.
Is flat-rate or per-credit enrichment better?
Flat-rate is better if you enrich every month, run AI agents, or expect volume to grow, because your cost stays fixed as usage rises.
Per-credit is better if you enrich rarely, in small amounts, or mostly buy mobile numbers. The deciding factor is how predictable your volume is, not how large it is.
How much does data enrichment cost at volume?
For emails, flat-rate is cheaper at every volume above a free tier. At 100,000 email lookups a month, MoltSets costs $97 against $849 for LeadMagic and about $1,960 for Apollo. For mobiles, per-credit tools are competitive and sometimes cheaper.
Monthly cost of email enrichment
Tool | Model | 1,000 emails/mo | 10,000 emails/mo | 100,000 emails/mo | Cost per email at 100k |
MoltSets | Flat rate | $27 | $27 | $97 | ~$0.001 |
BlitzAPI | Flat rate | $499 | $499 | $499 | ~$0.005 |
LeadMagic | Per credit | $99 | $249 | $849 | ~$0.008 |
Apollo (Basic, annual) | Per credit, per seat | $49 (1 seat) | $196 (4 seats) | ~$1,960 (40 seats) | ~$0.020 |
FullEnrich | Per credit | €55 | $499 | $3,500 | ~$0.035 |
Apollo figures assume added seats, because Apollo doesn't publish a price for extra credits.
Monthly cost of mobile enrichment
Tool | Cost per mobile | 1,000 mobiles/mo | 10,000 mobiles/mo |
MoltSets | $0.15 (token add-on) | 177(27 plan + $150 tokens) | $1,527 |
LeadMagic | 5 credits | $99 | $499 |
Apollo (Basic, annual) | 8 credits | $196 (4 seats) | ~$1,568 (32 seats) |
FullEnrich | 10 credits | $499 | $3,500 |
BlitzAPI (US only) | Unlimited on top plan | $599 | $599 |
When is per-credit cheaper?
Per-credit is cheaper in four situations. Outside them, flat-rate usually costs less.
Very low volume. If you enrich fewer than about 100 records a month, a free tier covers you: Prospeo gives 100 credits a month and Apollo 900 a year, and Hunter.io has a free plan too.
Mostly mobiles. If phones are the bulk of what you buy, per-mobile rates matter more than the pricing model. LeadMagic's 5-credit mobiles are very cost-effective, if mobiles are all that you want.
Irregular, bursty use. If you build one big list a quarter and nothing in between, credits that roll over can beat paying a monthly fee year-round.
You want the platform, not just the data. Apollo's credits come bundled with sequencing, a dialer, and a CRM. If you'd buy those anyway, comparing on data cost alone undersells it.
Which model fits your team?
Team | Model | Example |
Steady monthly enrichment | Flat rate | MoltSets, so cost stays fixed as volume grows |
AI agents and automated workflows | Flat rate | MoltSets, so an agent loop can't run up a credit bill |
High-volume US calling | Flat rate | Blitz, whose top plan includes unlimited US phones |
Occasional, low-volume lookups | Per credit | A free tier such as Prospeo or Apollo |
Mobile-heavy at modest volume | Per credit | LeadMagic, at 5 credits a mobile |
Sales teams wanting one platform | Per credit, per seat | Apollo, with sequencing and dialing included |
Frequently asked questions
Which enrichment API doesn't charge per credit?
MoltSets and BlitzAPI both use flat monthly pricing. MoltSets starts at $27/mo for email enrichment; BlitzAPI starts at $399/mo, with emails from $499.
Why do enrichment tools charge per credit?
Because their own data costs scale per record. Credits also let vendors charge more for harder-to-source data, such as mobiles at 5 to 10 credits each, and let new users start small.
Is flat-rate or per-credit cheaper?
For steady email enrichment, flat-rate is cheaper: 10,000 emails a month costs $27 on MoltSets against $196 on Apollo and $249 on LeadMagic. Per-credit is cheaper below about 100 lookups a month, where free tiers apply, and often for mobile-heavy use.
What does data enrichment cost per record?
Between about $0.001 and $0.035 per email at 100,000 lookups a month, depending on the tool. Mobiles cost more, roughly $0.04 to $0.58 each.
What happens to unused credits?
It depends on the vendor. Apollo and Prospeo credits expire at the end of each cycle. FullEnrich rolls credits over for 3 months (12 on annual plans), and LeadMagic banks up to two months. MoltSets has no credits to expire on its flat plan, and its phone tokens roll over.
How does MoltSets' flat-rate pricing work?
MoltSets charges a fixed monthly fee: $27, $97, $397, or $997, with higher tiers raising the weekly fair use limit. The $27 plan covers up to 5,000 enriched records a week, counted only when a contact is found. Mobiles are an add-on at $0.15 each, and unused tokens roll over. There's a free tier of 1,000 records.
Is unlimited enrichment really unlimited?
Flat-rate plans have usage limits to stop database scraping: MoltSets caps records per 5-hour window and per week, and BlitzAPI caps requests per second.
Do enrichment tools charge for failed lookups?
Most don't. MoltSets, LeadMagic, FullEnrich, and Findymail charge only for successful finds. Check how bulk uploads are billed before running a large list.