Flatstamp vs Constant Contact
Constant Contact or Flatstamp: what a year of email costs.
Constant Contact: Monthly plan priced by contact count. No free plan. Flatstamp: your list is free, and you pay when you hit send, from $0.80 per 1,000 emails.
A year of sending
Each example emails the whole list four times a month.
| Your list | Constant Contact | Flatstamp |
|---|---|---|
| 1,000 contacts4,000 emails a month | $144–$660Lite | $40Save $104–$620 |
| 5,000 contacts20,000 emails a month | $144–$660Lite | $190Could go either way |
| 10,000 contacts40,000 emails a month | $660–$960Lite | $340Save $320–$620 |
Side by side
- How you pay
- Constant ContactMonthly plan by contact count.
- FlatstampPrepaid stamps. One stamp sends one email to one person. No monthly plan.
- What your list costs
- Constant ContactPriced by contacts.
- FlatstampFree. Store as many contacts as you like.
- Send limit
- Constant Contact10 times your contact tier a month on Lite; extra emails cost $2 per 1,000.
- FlatstampAs many as you have stamps for.
- Free option
- Constant ContactNone.
- FlatstampNo free plan. Contacts are free; sending starts at $20.
- Unused credit
- Constant ContactMonthly allowance resets each month.
- FlatstampStamps never expire.
- Smallest purchase
- Constant Contact$12 a month (Lite, 500 contacts).
- Flatstamp$20 for 25,000 stamps.
The fine print
- There is no free plan.
- Lite caps sends at 10 times your contacts a month; extra emails cost $0.002 each ($2 per 1,000).
- Published prices differ between sources; we use the lowest we found.
When Constant Contact is the better pick
- You want phone support and event, survey and social tools from one vendor.
- You'd rather have a person guide your setup than do it yourself.
Flatstamp is opening soon as an invite-only beta. This page compares prices, not features we haven't shipped yet.
Sources
Prices checked October 21, 2026: list prices on monthly billing, in US dollars, before tax and discounts, for Constant Contact's cheapest plan that fits. A range means we couldn't confirm every price step. Prices change, so check Constant Contact's own page before deciding.