Freedom251 › Virtual Classroom Software
OpenFlat
What OpenFlat is
OpenFlat is online teaching software for individual teachers running one-to-one, small-group, or large-group classes. Its live classroom combines low-latency audio and video with a collaborative whiteboard, chat, screen sharing, hand raising, and student participation. Teachers can share PPTs, documents, audio, and video, with PPT animations preserved. Classroom plugins can add quizzes, check-ins, timers, scoring, or third-party applications, and classes can be recorded for later playback.
OpenFlat is listed for Android, iOS, macOS, web, and Windows. Monthly plans range from 体验版 at 25 CNY a month to 高级版 at 280 CNY a month. The one-time 畅享版 costs 6000.00 CNY and is valid for one year. Plans set different monthly class credits, room time limits, participant caps, and cloud storage amounts. A credit is deducted when at least two people remain in a room for 10 minutes; solo teacher preparation is free for up to 60 minutes. Each class also includes 10 minutes for students to join and five minutes of overrun time.
The service agreement identifies GPP as 杭州高胖胖科技有限公司 and describes OpenFlat as a test product for demonstrating functionality, performance, and availability to GPP customers, rather than a formal public product. It says users should not reasonably expect privacy or security during the test period and that the service is provided as-is. A full refund may be requested within seven days if no valid class credits have been used; used service is not refundable.
Who it suits
OpenFlat may suit individual teachers who need live classes with shared materials, interactive classroom tools, and recordings across its listed platforms. Its test-product status and the agreement’s privacy and security terms are central considerations for anyone planning to use it for teaching.
What it does well
- Supports one-to-one, small-group, and large-group classes
- Live classroom includes whiteboard, chat, and screen sharing
- Shares PPTs, documents, audio, and video
- Plugins add quizzes, check-ins, timers, and scoring
- Class recording supports later playback
What to know first
- No free plan is listed
- Service agreement identifies it as a test product
- Agreement says users should not expect privacy or security during testing
- Used service is not refundable
Limits
体验版 costs 25 CNY a month and includes five class credits per month, a 60-minute room limit, eight participants, and 3 GB cloud storage. A credit is deducted when at least two people stay in a room for 10 minutes; solo teacher preparation is free for up to 60 minutes.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| 专业版 | ¥120.00 (shown with ¥180.00) · 30 class credits/month · 120-minute room limit · 32 participants · cloud recording and playback · 20 GB cloud storage · screen sharing | 120 CNY a month |
| 专业版 | ¥1320.00 (shown with ¥2160.00) · 30 class credits/month · 120-minute room limit · 32 participants · cloud recording and playback · 20 GB cloud storage · screen sharing | 1,320 CNY a year |
| 体验版 | ¥25.00 (shown with ¥30.00) · 5 class credits/month · 60-minute room limit · 8 participants · cloud recording and playback · 3 GB cloud storage · screen sharing | 25 CNY a month |
| 高级版 | ¥280.00 (shown with ¥430.00) · 70 class credits/month · 180-minute room limit · 80 participants · cloud recording and playback · 50 GB cloud storage · screen sharing | 280 CNY a month |
| 高级版 | ¥3080.00 (shown with ¥5160.00) · 70 class credits/month · 180-minute room limit · 80 participants · cloud recording and playback · 50 GB cloud storage · screen sharing | 3,080 CNY a year |
| 基础版 | ¥40.00 (shown with ¥55.00) · 10 class credits/month · 120-minute room limit · 16 participants · cloud recording and playback · 5 GB cloud storage · screen sharing | 40 CNY a month |
| 基础版 | ¥440.00 (shown with ¥660.00) · 10 class credits/month · 120-minute room limit · 16 participants · cloud recording and playback · 5 GB cloud storage · screen sharing | 440 CNY a year |
| 畅享版 | ¥6000.00 (shown with ¥12000.00) · Unlimited class credits · valid for 1 year · 180-minute room limit · 100 participants · cloud recording and playback · 100 GB cloud storage · screen sharing · one-to-one support | 6,000 CNY, paid once |
As app.openflat.tech lists them, read 7 Oct 2026. The maker's own page has the final word.
Getting started
- Visit the OpenFlat website
- Choose a monthly plan or the one-time 畅享版
- Use the service on Android, iOS, macOS, web, or Windows
- Contact [email protected] for custom plans or support requests
Verdict
Consider OpenFlat if its live teaching tools, platform support, and plan limits fit your classes. Its agreement describes it as a test product and advises users not to reasonably expect privacy or security during the test period, so that status should weigh heavily in a purchase decision.
Questions
Does OpenFlat have a free plan?
No free plan is listed. The lowest listed plan, 体验版, costs 25 CNY a month.
Which platforms does OpenFlat support?
It is listed for Android, iOS, macOS, web, and Windows.
How are class credits used?
A class credit is deducted when at least two people stay in a room for 10 minutes. Solo teacher preparation is free for up to 60 minutes.
Can classes be recorded?
Yes. OpenFlat supports recording classes for later playback, and its plans list cloud recording and playback.
What does the service agreement say about OpenFlat?
It describes OpenFlat as a test product for GPP customers, rather than a formal public product. It says users should not reasonably expect privacy or security during the test period and that the service is provided as-is.
What are the refund terms?
A full refund may be requested within seven days if no valid class credits were used. Used service is not refundable.
Facts from OpenFlat's own pages
- 协议披露
- 服务协议将 OpenFlat 描述为供 GPP 客户展示产品效果的测试产品，并称其仅用于测试功能、性能和可用性。 · app.openflat.tech, 7 Oct 2026
- Classroom plugins
- Plugins can add quizzes, check-ins, timers, scoring, or third-party applications. · app.openflat.tech, 7 Oct 2026
- Class sizes
- The site describes small-group collaboration for 2–16 people and says the one-time 畅享版 supports up to 100 people per room. · app.openflat.tech, 7 Oct 2026
- Courseware
- Teachers can share PPTs, documents, audio, and video with students, and PPT animations are preserved. · app.openflat.tech, 7 Oct 2026
- Extra class time
- Each class includes 10 minutes for students to join and 5 minutes of overrun time. · app.openflat.tech, 7 Oct 2026
- Live classroom
- It supports low-latency audio and video, collaborative whiteboards, hand raising, student participation, chat, and screen sharing. · app.openflat.tech, 7 Oct 2026
- Maker
- The service agreement identifies GPP as 杭州高胖胖科技有限公司. · app.openflat.tech, 7 Oct 2026
- Platforms
- The site lists browser access and apps for Windows 10 or later, macOS on Apple or Intel chips, iOS, and Android. · app.openflat.tech, 7 Oct 2026
- Product
- OpenFlat describes itself as online teaching software designed for individual teachers, for one-to-one, small-group, and large-group classes. · app.openflat.tech, 7 Oct 2026
- Recording
- OpenFlat supports recording classes for later playback. · app.openflat.tech, 7 Oct 2026
- Refunds
- A full refund may be requested within 7 days if no valid class credits were used; used service is not refundable. · app.openflat.tech, 7 Oct 2026
- Security
- The service agreement says users should not reasonably expect privacy or security during the test period and describes the test product as provided as-is. · app.openflat.tech, 7 Oct 2026
- Service status
- The service agreement labels OpenFlat a test product for demonstrating functionality, performance, and availability to GPP customers, rather than a formal product for public use. · app.openflat.tech, 7 Oct 2026
- Support
- The site directs users to [email protected] for custom plans and support requests. · app.openflat.tech, 7 Oct 2026
- Usage limits
- A class credit is deducted when at least two people stay in a room for 10 minutes; solo teacher preparation is free for up to 60 minutes. · app.openflat.tech, 7 Oct 2026
Where OpenFlat stands on Freedom251
- Virtual Classroom Software#28 of 30