AWS End User Messaging SMS vs Sinch SMS pricing

Verified 2026-10-24 (1 day ago)Source: AWS End User Messaging SMS: aws.amazon.com/end-user-messaging/pricing/, Sinch SMS: sinch.com/pricing/sms/Verified shows the older of the two.

Monthly cost at three volumes

Monthly cost of AWS End User Messaging SMS and Sinch SMS at three volumes and at your own
Volume	AWS End User Messaging SMS	Sinch SMS
small1K sms sent	$0 / moWhatsAppexcludes unpriced usage	$7.80 / moPay-as-you-go
growing10K sms sent	$0 / moWhatsAppexcludes unpriced usage	$78 / moPay-as-you-go
scale100K sms sent	$0 / moWhatsAppexcludes unpriced usage	$780 / moPay-as-you-go
your volumeset above	$0 / moWhatsAppexcludes unpriced usage	$78 / moPay-as-you-go

Each cell is the cheapest feasible plan, or the chosen model, at that volume, from the shared Overage cost function. "Cheapest model" only considers models with both an input and an output price listed. Volumes are example scenarios you can edit.

Tiers, aligned by position

Tiers of AWS End User Messaging SMS and Sinch SMS aligned by position: free, entry, mid, top
Position	AWS End User Messaging SMS	Sinch SMS
Free	$0 base + usageNotify	$0 base + usagePay-as-you-go
Entry	unlistedSMS (United States)	no tier
Mid	no tier	no tier
Top	unlistedWhatsApp	no tier

Tightest rate limit

Tightest documented rate limit of each service
Measure	AWS End User Messaging SMS	Sinch SMS
Tightest limit	unlisted	unlisted

Changes in the last 90 days

No changes recorded.

No change detected for either service in the last 90 days.