Datacircle

8 Sigma SMS alternatives in 2026

By , founder of Datacircle. Last updated:

Other providers sell phone validation APIs like Sigma SMS's. TPSClear costs $0.353 per 1,000 phones, 互亿无线 Ihuyi $0.359 and NumLookupAPI $0.36.

Phone validation API alternatives

On our Sigma SMS plan pages, we compare each Sigma SMS plan with other providers' plans. We list other providers' plans below, cheapest per 1,000 phones first.

Provider and plan$ per 1,000 phones
TPSClear, £795 monthly, Scale, POST /v1/screen$0.353
互亿无线 Ihuyi, CNY 4,800 pack$0.359
NumLookupAPI, $179.99 monthly, scale 500k, POST /v1/validate, Batch Validation$0.36
ZelNum, $2,000 pack, Pay as you go, $2,000 top-up, POST /detect, Zalo Number Checker$0.36
GREENSMS, top-up, HLR lookup: other countries$17.91
MTS Exolve, top-up, Basic: from 750,001 to 1,000,000 requests a month$17.91
SMSC.ru, top-up from ₽10,000, Tariff plan 5, Russia, all operators$17.91
Listar, top-up from €10,000, Gold, POST /search/verify-whatsapp$18.00

Compare every phone validation API plan: Phone validation API pricing: free and cheapest plans compared

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