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Bizdogu（사장님도구） is a business-tools dashboard for small business owners, shop operators, and freelancers in Korea. Its main pitch is bringing tax calculations, document generation, business analysis, and marketing-material creation into a single web-based interface. The site says it offers 26 tools in total, making it better suited to handling everyday “admin chores” than serving as a complex ERP or full accounting/tax system.
The feature coverage is broad. Startup-prep tools include business status lookup, industry codes, and startup cost calculation. Tax and accounting tools cover VAT, simplified taxpayer VAT, comprehensive income tax, the four major insurances, 3.3% withholding tax, and payroll calculations. On the document side, it supports quotations, transaction statements, electronic seals, and contract templates. Business analysis tools include external bookkeeping, sales ledgers, simple ledgers, gross margin, BEP, and loan interest calculations. For marketing, it offers AI copywriting, QR codes, SNS image cropping, and logo generation. Its positioning is more self-service utility than full SaaS platform. The pages emphasize responsive use on mobile, tablet, and PC, and the PDF merge feature specifically notes that processing happens locally in the browser rather than being uploaded to a server.
The free version is permanently free and includes unlimited use of all calculators, but quotations/transaction statements are limited to 3 per month, PDFs include a watermark, the number of electronic seals and contract templates is limited, and it does not support data saving, CSV export, AI assistance, or ad removal. Pro is listed as ₩9,900/month, while the checkout description shows $9.00/month, with 25% off for annual billing. It unlocks unlimited documents, watermark removal, 10 types of high-resolution seals, 20+ contract templates, the latest 100 history records, CSV export, AI marketing, ad removal, and priority email support. Note that no full or partial refunds are available after payment.
There is limited information on third-party integrations. The site explicitly mentions using the Korean National Tax Service/HomeTax API for real-time business status lookup, and the AI copywriting feature is tied to scenarios such as Naver Place. We did not see details on team collaboration, role-based permissions, audit logs, open APIs, webhooks, or compliance certifications, so it should not be evaluated as an enterprise-grade collaborative SaaS product.
Its strengths are that the tools closely match the frequent needs of Korean sole proprietors, the free version is quite usable, the Pro plan is inexpensive, and the learning curve is low. The drawbacks are that it is highly localized for Korea: tax rates, social insurance, invoicing, and business registry data are not suitable for China or most other countries. It also lacks enterprise-level permissions and integration capabilities. It is best suited to Korean startup founders, sole proprietors, and freelancers who need everyday calculations and lightweight documents.
The site does not disclose availability for mainland China access or payments, so this remains unknown. Since payment relies on PayPal and the product is built around Korean regulations and National Tax Service data, Chinese users with local tax or accounting needs may be better served by Kingdee, Yonyou, Baiwang Cloud, or local e-signature and tax/accounting tools.
⚠ 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 bizdogu.com official site.
bizdogu.com is an South Korea Legal & Tax provider. TG4G tracks its product information, an overall rating of 7.0/10, and a China-accessibility score of Workable. Click "Visit Official Site" to reach bizdogu.com directly.