Best PostalUp Alternatives in 2026

Updated October 2026

20 apps from address verification software ranked against PostalUp on the same published basis.

1
Smarty Address Verification Free trial AndroidapiiOSLinuxMac $46/mo6.9
PostalUp vs Smarty Address Verification
2
Addrex Address Validation API Free plan apiWeb $39/mo6.3
PostalUp vs Addrex Address Validation API
3
Melissa Global Address Verification Free plan apiLinuxself-hostedWebWin $40/mo6.3
PostalUp vs Melissa Global Address Verification
4
Lob Address Verification Free plan apiWeb $260/mo6.2
PostalUp vs Lob Address Verification
5
Byteplant Address Validator Free trial apiWebWin 5.7
PostalUp vs Byteplant Address Validator
6
Hopewiser Address Validation Free trial apiLinuxself-hostedWebWin 5.7
PostalUp vs Hopewiser Address Validation
7
PostGrid Address Verification Free trial apiself-hostedWeb $18/mo5.7
PostalUp vs PostGrid Address Verification
8
Informatica Product 360 apiself-hostedWebWin 5.6
PostalUp vs Informatica Product 360
9
Precisely EnterWorks apiWebWin 5.6
PostalUp vs Precisely EnterWorks
10
Addressfinder Free trial apiWeb A$19/mo5.4
PostalUp vs Addressfinder
11
Fetchify Free trial apiWeb £25/mo5.4
PostalUp vs Fetchify
12
AFD Postcode WebWin 5.3
PostalUp vs AFD Postcode
13
Experian Address Validation Web 5.3
PostalUp vs Experian Address Validation
14
Oracle PeopleSoft Campus Solutions Financial Aid WebWin 5.3
PostalUp vs Oracle PeopleSoft Campus Solutions Financial Aid
16
PostNL Address Validation API Web 5.3
PostalUp vs PostNL Address Validation API
17
Precisely Data Enrichment Web 5.3
PostalUp vs Precisely Data Enrichment
18
Addressr Web 5.2
PostalUp vs Addressr
19
UPU POST*CODE API Web 5.2
PostalUp vs UPU POST*CODE API
20
Addresser Web 5.1
PostalUp vs Addresser
21
Addressify 5.1
PostalUp vs Addressify

PostalUp alternatives compared

#	App	Score	Free plan	From	Runs on
1	Smarty Address Verification	6.9	No	$46/mo	Android, API, iOS, Linux, Mac, self-hosted, Web, Windows
2	Addrex Address Validation API	6.3	Free plan	$39/mo	API, Web
3	Melissa Global Address Verification	6.3	Free plan	$40/mo	API, Linux, self-hosted, Web, Windows
4	Lob Address Verification	6.2	Free plan	$260/mo	API, Web
5	Byteplant Address Validator	5.7	No	—	API, Web, Windows
6	Hopewiser Address Validation	5.7	No	—	API, Linux, self-hosted, Web, Windows
7	PostGrid Address Verification	5.7	No	$18/mo	API, self-hosted, Web
8	Informatica Product 360	5.6	No	—	API, self-hosted, Web, Windows
9	Precisely EnterWorks	5.6	No	—	API, Web, Windows
10	Addressfinder	5.4	No	A$19/mo	API, Web
11	Fetchify	5.4	No	£25/mo	API, Web
12	AFD Postcode	5.3	No	—	Web, Windows
13	Experian Address Validation	5.3	No	—	Web
14	Oracle PeopleSoft Campus Solutions Financial Aid	5.3	No	—	Web, Windows
16	PostNL Address Validation API	5.3	No	—	Web
17	Precisely Data Enrichment	5.3	No	—	Web
18	Addressr	5.2	No	—	Web
19	UPU POST*CODE API	5.2	No	—	Web
20	Addresser	5.1	No	—	Web
21	Addressify	5.1	No	—	—

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Questions about PostalUp alternatives

What is the best alternative to PostalUp?

Smarty Address Verification, number 1 in address verification software with a score of 6.9 out of 10. The others here: Addrex Address Validation API, Melissa Global Address Verification, Lob Address Verification and 16 more.

What is the best free alternative to PostalUp?

Addrex Address Validation API is the best-ranked alternative with a free plan. 3 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked mobile-first: a phone app alongside the web or desktop product, a free tier and the depth of its documentation.