CoStudy vs Kaizen
CoStudy
co-study.com.cnKaizen
my-kaizen.comSide by side
| Figure | CoStudy | Kaizen |
|---|---|---|
| Price from | 15 CNY/mo | €3.33/mo |
| Free plan | — | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| Plans published | 5 | 3 |
| Spec score · Virtual Study Room Apps | 8.0 (#16) | 8.4 (#6) |
| Privacy and security | The privacy policy says the company takes security measures to protect personal information and allows users to contact it with privacy questions or complaints. | The privacy policy says servers are located in Germany and globally, describes technical and organisational safeguards, and says it cannot guarantee complete security of data transmissions or storage. |
| Product | CoStudy describes itself as an online study room designed to make studying feel accompanied. | Kaizen is a Pomodoro timer with camera-free Focus Rooms where people work alongside one another in real time. |
| Support | The maker lists telephone support at 13032187175 and names its Weibo and WeChat public account as CoStudy自习室. | The maker says support emails and feature requests go directly to the developer, who also invites contact by email and Discord. |
Plans
CoStudy
- Co岛会员（首次购买，1个月）15 CNY a month
- Co岛会员（非首次购买，1个月）28 CNY a month
- Co岛会员（3个月）66 CNY, paid once
- Co岛会员（12个月）168 CNY, paid once
- Co岛会员（3年）428 CNY, paid once
In their own words
Kaizen
Kaizen is a focus and study app built around a Pomodoro timer, task and habit tracking, and camera-free Focus Rooms. The timer has presets, custom sessions from 5 to 180 minutes, and stopwatch mode. Rooms hold 2 to 50 people; users can join public rooms or private rooms with a code. There is no video or microphone, and members see one another’s status and focus tag. Tasks include an Inbox, subtasks, priorities, due dates, estimates and automatic time tracking. The free plan allows up to 7 active tasks, 5 habits, blocking for 3 apps, and statistics covering the last 30 days. App blocking is available on iOS and Android, not web or Windows. Kaizen runs on web, iOS, Android and Windows, with account data syncing across platforms. The free plan is free. Premium costs €3.99 a month or €39.99 a year; both include unlimited tasks, habits and app blocking, room creation, the full music and background library, and all-time statistics.