Software · head to head
Mailgun vs Customer.io
Customer.io
Software
Data-driven messaging for teams getting started, scaling and beyond
- From
- On request
- Rated
- -
The short version
- Each has a real cost: Mailgun free plan caps at 100 emails per day; Customer.io essentials plan caps at 5,000 profiles (people and objects) and 1,000,000 monthly emails, with overages billed at $0.12 per 1,000 emails beyond that
Where they differ
Only the attributes on which Mailgun and Customer.io actually diverge.
| Attribute | Mailgun | Customer.io |
|---|---|---|
| Pricing model | usage-based | subscription |
Identical on both: starting price (On request), free tier (No), platforms (Web), user rating (Not yet rated), category (Unknown).
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Mailgun
- Free plan caps at 100 emails per day
- Basic plan starts at $15/mo for 10,000 emails then overages from $1.80 per 1,000; Foundation and Scale plans discount overage rates but still meter every email beyond the included volume
- Foundation ($35/mo) and Scale ($90/mo) plans are free for the first month only, then bill at full price
Customer.io
- Essentials plan caps at 5,000 profiles (people and objects) and 1,000,000 monthly emails, with overages billed at $0.12 per 1,000 emails beyond that
- Standard and Premium tiers show custom pricing only, and Enterprise is negotiated rate, so three of the four published tiers require a sales conversation
- Monthly plans accept credit card only; annual billing via invoice (ACH/wire) requires the annual commitment
Pricing, plan by plan
Mailgun
On requestNo published plan breakdown. See the Mailgun review.
Customer.io
On requestNo published plan breakdown. See the Customer.io review.
Which should you pick?
Choose Mailgun if
Nothing in the data separates Mailgun from Customer.io on the points above - pick on price and on how each one feels to use.
Choose Customer.io if
Nothing in the data separates Customer.io from Mailgun on the points above - pick on price and on how each one feels to use.
Questions people ask
- Is Mailgun or Customer.io better?
- Neither clearly leads. Mailgun starts at On request and Customer.io at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Mailgun or Customer.io?
- Mailgun starts at On request and Customer.io at On request.
- Does Mailgun or Customer.io run on more platforms?
- Both run on Web, so platform support will not decide this one for you.
Related pages
More on Customer.io
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