Dimension scores are derived from public data and fields; weighted into the composite. Reference only.
Free Lesson is an online reservation management system for schools and training institutions provided by 株式会社インプルーヴ. The official site positions it as a “スクール特化予約システム” — a reservation system specialized for schools — with an emphasis on moving paper-based booking sheets to the cloud, shifting phone reservations to tablet/online workflows, and replacing same-day cash settlement with online payment.
Based on the site content, the product is centered on lesson reservations, with particular support for “フリータイム制レッスン” — free-time lesson scheduling — making it suitable for institutions where students can flexibly choose class times. The system also supports smartphone access. Beyond booking, it can manage student information and contract information in one place, making it closer to a lightweight school operations management system. Deployment is clearly described as a cloud service; no self-hosting information was found.
The website mentions “complex reservations to LINE” and “online payment,” suggesting the product may be related to LINE and online payment workflows, but it does not disclose specific integration methods, payment providers, or API capabilities. Information on team collaboration, role-based permissions, store/campus management, and similar features does not appear in the main content. On security, only a link to the personal information protection policy is visible; details such as encryption, backups, audit logs, authentication, or compliance are not disclosed.
The main content does not provide Free Lesson plan tiers, monthly fees, initial setup costs, or free trial information. The page does disclose domain management fee adjustments — for example, .com/.net annual fees excluding tax adjusted to 3,000 JPY, and .global to 16,800 JPY — but these appear to be fees for accompanying website/domain services rather than pricing for the reservation system itself. Since the company has discontinued fixed-line phone support, users are asked to make inquiries through a contact form, and the expected support response level is unclear.
Its strengths are a clearly defined vertical use case and a design focused on real pain points for training schools: reducing phone calls, paper handling, and cash processing, while unifying reservation, student, and contract management. Its weaknesses are limited public transparency: pricing, trials, permissions, APIs, security, and SLA information are all missing. It is best suited for evaluation by Japan-based language schools, arts and skills studios, cram schools, fitness studios, and other course-based organizations.
Mainland China access, payment compatibility, and Chinese-language support are unknown. If an institution primarily operates in China, it is advisable to first compare local options such as 校管家, ClassIn, the WeCom/Tencent Meeting ecosystem, and Youzan Education. For overseas course reservation scenarios, alternatives such as SimplyBook.me, Acuity Scheduling, and Mindbody may also be worth comparing.
⚠ 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 imprv.co.jp official site.
imprv.co.jp is an Japan Education provider. TG4G tracks its product information, an overall rating of 6.0/10, and a China-accessibility score of Limited (proxy recommended). Click "Visit Official Site" to reach imprv.co.jp directly.