Simple Transact（シンプルトランザクト株式会社） is an IT solutions company based in Fukuyama, Hiroshima, Japan, founded in 2020. Its website positions the company as an “IT solutions partner that accelerates business,” with core services including commissioned system development, payment system development and operations outsourcing, payment system consulting, and PCI DSS certification and compliance-related services. It is not a typical developer-tool platform offering self-service sign-up, API documentation, and SDKs; it is closer to a custom development and compliance consulting provider for the payments industry.
For system development, the website emphasizes understanding each client’s budget and requirements, then providing end-to-end support from planning, development, installation/implementation, to operations and maintenance. The disclosed project types include in-house EC inventory management, merchant sales management for payment service providers, order management for manufacturers, centralized reservation site management, site control, merchant receivables/billing management, affiliate systems, portal SNS, cloud environment setup, and membership sites.
On PCI DSS, the website states that it provides compliance consulting, assessment, translation, and audit support for companies that process, store, or transmit card information. Target clients include acquirers, issuers, merchants, and payment service providers. Its overseas payment processing support covers Visa, Master Card, American Express, JCB, Diners, and UnionPay, and includes credit cards, recurring billing, installments, link payments, mobile payments, and convenience store payments.
The website does not disclose pricing, packages, delivery timelines, or SLA terms. It only states that an initial consultation is free and that system proposals are customized based on the client’s budget and needs. Technical transparency is limited: there is no visible information on supported languages, frameworks, APIs, SDKs, deployment architecture, source-code delivery, or self-hosting. The site is more like a corporate services brochure, with considerable repeated content and limited developer documentation quality.
Its strengths are its focus on payments and its coverage of system development, implementation, operations, and PCI DSS compliance. It is suitable for companies that need custom payment systems, cross-border payment implementation, or PCI DSS audit support. The downside is the lack of public technical materials and pricing, making it unsuitable for development teams that want to quickly integrate a standardized API, evaluate SDK capabilities, or run a self-service trial.
The website does not provide information about access from mainland China, Chinese-language services, or payment methods, and its accessibility cannot be determined from the page content. If a company’s focus is cross-border payments or UnionPay-related business, it may be worth consulting further to clarify the scope of its services. If a mature developer platform is required, alternatives to compare include Stripe, Adyen, 连连国际, PingPong, or domestic payment compliance consulting/custom development providers.
⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on simpletransact.com official site.
simpletransact.com is an Japan Dev Tools provider. TG4G tracks its product information, an overall rating of 6.0/10, and a China-accessibility score of Workable. Click "Visit Official Site" to reach simpletransact.com directly.