playSMS vs SMSBOX

playSMS is free, open-source SMS management software with a web interface for gateways and bulk SMS services. It sends individual or bulk text, flash, and Unicode messages, and receives private SMS that can be forwarded to email or mobile phones or routed to users and URLs. Built-in tools include automatic replies, polls, quizzes, subscriptions, SMS-to-email, and email-to-SMS through mailbox polling. It connects with Gammu, Kannel, SMS Server Tools, Jasmin, Playnet, Uplink, and several SMS providers. Web services support sending, delivery reports, credit checks, and other operations. Plugins can add features, themes, tools, and gateway modules. Routing can use prefixes or users, with destination-based rating and per-user credits. The project reports one user tested 200,000 SMS per day. playSMS itself cannot send or receive messages without a separate gateway application or service. It is available for Android, Linux, self-hosting, web, and API use under GPLv3 or later, without warranty.

SMSBOX is a cloud SaaS messaging platform for professional communication through a web dashboard or REST API. It supports bulk SMS, OTP codes, WhatsApp Business messages, voice calls, email-to-SMS, and scheduled sending, with delivery to more than 200 countries. The dashboard imports Excel contacts, applies personalization tags, schedules messages, and tracks results in real time; access is free while messages are charged per use. The API handles sending and receiving SMS, OTP verification, HLR number validation, voice messages, inbound webhooks, and delivery reports. SMSBOX lists more than 50 direct integrations and 6,000+ Zapier apps. JAAN says servers and data storage are in Belgian EU data centers under GDPR. Free test credits provide eight one-off credits for a verified number. Arbitrary-number sending costs from €0.06 per SMS. Credits last one year, and longer messages count as multiple SMS.