Is Mailgun or Sinch better?

Neither clearly leads. Mailgun starts at Free and Sinch at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, Mailgun or Sinch?

Mailgun has a free tier; the other does not. Paid plans start at Free for Mailgun and On request for Sinch.

Does Mailgun or Sinch run on more platforms?

Mailgun runs on Web. Sinch runs on Web, APIs, Java, Python, JavaScript, PHP, C#.

Can I use Mailgun for free?

Yes. Mailgun has a free tier, so you can try it without paying. Sinch starts at On request.

What is Mailgun best used for?

Mailgun is most often used for transactional email delivery and smtp relay, email marketing at scale for developers and enterprises. Of those, transactional email delivery and smtp relay and email marketing at scale for developers and enterprises are not what Sinch is typically brought in for.

What can Mailgun do that Sinch cannot?

Sinch covers Published per-country rate card, Global SMS and RCS, Voice and US termination, Verification.

Marketing · head to head

Mailgun vs Sinch

Mailgun

Marketing

Email delivery built for developers

From: Free
Rated: -

Full review Website

Sinch

Telecommunications

Messaging, voice and email APIs with a fully published per-country rate card

From: On request
Rated: -

Full review Website

The short version

Only Mailgun has a free tier, so it costs nothing to try first.
Each has a real cost: Mailgun free tier limited to 100 emails per day, restricting high-volume use cases; Sinch much of the portfolio arrived through acquisition, so a customer buying messaging and email should check how consistent the consoles, APIs and support processes actually are across those specific products.
Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Mailgun and Sinch actually diverge.

Attributes where Mailgun and Sinch differ
Attribute	Mailgun	Sinch
Starting price	Free	On request
Pricing model	subscription	Per message and per minute, priced by destination country
Free tier	Yes	No
Platforms	Web	Web, APIs, Java, Python, JavaScript, PHP, C#
Category	Marketing	Telecommunications

Identical on both: user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Mailgun

Nothing recorded that Sinch does not also cover.

Only in Sinch

Published per-country rate card
Global SMS and RCS
Voice and US termination
Verification
Transactional email

What people use each for

The jobs each tool is most often brought in to do.

Mailgun

Transactional email delivery and SMTP relaynot Sinch
Email marketing at scale for developers and enterprisesnot Sinch

Sinch

Enterprises consolidating messaging, voice and transactional email with one suppliernot Mailgun
Teams that need to model per-country cost precisely before committing to a vendornot Mailgun
US voice traffic where termination on an owned network reduces costnot Mailgun
Buyers who want a supplier whose financial position is publicly reportednot Mailgun

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Mailgun

Free tier limited to 100 emails per day, restricting high-volume use cases
Log retention minimal on lower tiers (1 day on Free and Basic plans)
Add-on pricing for email validations and extra emails can accumulate quickly for high-traffic users

Sinch

Much of the portfolio arrived through acquisition, so a customer buying messaging and email should check how consistent the consoles, APIs and support processes actually are across those specific products.
Product overlap from acquisitions means the right Sinch product for a use case is not always obvious and sales guidance varies.
Integrating acquired businesses is a continuing programme, so account handling and support contacts can change under a customer mid-contract.
The published rate card is a list price, so organisations at volume still negotiate and small senders pay the advertised rate without leverage.
US A2P messaging carries 10DLC registration fees and per-segment carrier surcharges on top of the published rates, as it does with every provider.

Pricing, plan by plan

Mailgun

Free

FreeFree
- 100 emails per day
- Basic APIs
- SMTP relay
Basic$15/monthly
- 10,000 emails per month
- No daily limits
- Monthly overage options
Foundation$35/monthly
- 50,000 emails per month
- 1,000 custom domains
- Email template builder
Scale$90/monthly
- 100,000 emails per month
- SAML SSO
- 5,000 email validations

Sinch

On request

Pay as you go$undefined/month
- Published per-country and per-network rate card in USD, EUR and GBP
- Registered US 10DLC traffic priced below standard US rates
- Outbound PSTN voice priced by route

Which should you pick?

Choose Mailgun if

You want to start without paying.

Mailgun review

Choose Sinch if

You need published per-country rate card.
You work on Web, APIs, Java, Python, JavaScript, PHP, C#.
You also want global sms and rcs.

Sinch review

Questions people ask

Is Mailgun or Sinch better?: Neither clearly leads. Mailgun starts at Free and Sinch at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Mailgun or Sinch?: Mailgun has a free tier; the other does not. Paid plans start at Free for Mailgun and On request for Sinch.
Does Mailgun or Sinch run on more platforms?: Mailgun runs on Web. Sinch runs on Web, APIs, Java, Python, JavaScript, PHP, C#.
Can I use Mailgun for free?: Yes. Mailgun has a free tier, so you can try it without paying. Sinch starts at On request.
What is Mailgun best used for?: Mailgun is most often used for transactional email delivery and smtp relay, email marketing at scale for developers and enterprises. Of those, transactional email delivery and smtp relay and email marketing at scale for developers and enterprises are not what Sinch is typically brought in for.
What can Mailgun do that Sinch cannot?: Sinch covers Published per-country rate card, Global SMS and RCS, Voice and US termination, Verification.

Answered from the vendors’ own pages

Mailgun: What happens when I exceed my monthly email quota?

Mailgun allows monthly overage options on paid plans. Extra emails are charged from $1.30 to $1.10 per 1,000 emails depending on plan tier. Enterprise customers negotiate custom rates.

Source

Sinch: Does Sinch publish its prices?

Yes, unusually completely for a vendor of its size. It publishes a per-country and per-network rate card in US dollars, euros and sterling, with a stated price date, covering both messaging and voice.

Mailgun: Can I upgrade from Free to a paid plan and when does billing begin?

Yes, you can upgrade to paid plans anytime. The first month is free on Foundation ($35/month) and Scale ($90/month) plans, with billing starting on month two.

Source

Sinch: Is MessageBird part of Sinch?

No. MessageBird, now trading as Bird, is a separate Amsterdam company and a direct competitor. It does not appear anywhere in Sinch's own published acquisition history.

Mailgun: What currencies and billing periods does Mailgun support?

Mailgun supports monthly billing in USD, EUR, and GBP. Charges are prorated for mid-month signups. Annual billing options are not explicitly listed on the pricing page.

Source

Sinch: Can we see Sinch's financials before signing?

Yes. Sinch trades on the Nasdaq Stockholm Large Cap list under the symbol SINCH, so revenue, margins and retention are publicly reported.

Mailgun vs Sinch

Mailgun

Sinch

The short version

Where they differ

What each one covers

Only in Mailgun

Only in Sinch

What people use each for

Mailgun

Sinch

Where each one falls short

Mailgun

Sinch

Pricing, plan by plan

Mailgun

Sinch

Which should you pick?

Choose Mailgun if

Choose Sinch if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on Mailgun

More on Sinch

Keep looking

Other head to heads