Roshi vs Koy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Roshi
Connects parents with university students for personalized tutoring in academics, sports, music, and languages. Offers engaging lessons tailored to a child's needs with easy scheduling and payment.
- Personalized instruction
- Wide range of subjects
- Relatable role models
- Seamless scheduling
- Integrated payments
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Roshi is the ultimate platform for parents seeking top-notch, personalized instruction for their young children. Our app connects you with university students who are not only knowledgeable in their fields but also relatable role models for your kids. With a wide range of subjects including academics, sports, music, and languages, Roshi offers engaging and effective training sessions tailored to your child's needs. Why Choose Roshi? - Personalized Instruction: Tailored lessons from skilled university students. - Wide Range of Subjects: From math and science to soccer and piano, we cover it all. - Relatable Role Models: Instructors who connect with and inspire your child. - Seamless Experience: Easy scheduling and payments through our integrated platform. How It Works: - Sign Up: Create your account and browse available instructors. - Select a Tutor: Choose the perfect match based on your child’s needs. - Schedule Lessons: Book convenient times directly through the app. Join the growing community of parents who trust Roshi to provide quality, engaging instruction for their children. Download now and see the difference personalized tutoring can make!
Koy
This app simplifies coordinating children's activities across different households. It allows parents and guardians to track events, collaborate on responsibilities like carpooling, and build a supportive community for managing family life.
- Track children's activities
- Collaborate with other parents
- Share responsibilities
- Coordinate carpooling and rides
- Streamline communication
- Build a supportive parent network
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We've all heard the saying, "It takes a village to raise a child". Here at Parent-AI, we not only believe in that sentiment but we've also brought it to life in the digital age. Juggling children's activities across different households can be a daunting task. From managing school events and hobby classes to coordinating play dates and shared rides for sports practices, parenting can often feel like an overwhelming marathon. But what if we could transform those responsibilities into opportunities for community building and shared experiences? That's where Koy steps in. We've crafted an intuitive, comprehensive platform designed to streamline the coordination and communication between busy parents and guardians. With Koy, you can effortlessly track your kids' activities, collaborate with other parents, and share responsibilities like driving kids to baseball practice or supervising a study group. It's about creating a supportive network that makes managing and coordinating activities a breeze. Our mission is to simplify your life, strengthen your community, and allow you to focus on what truly matters - cherishing the precious moments of parenthood. Whether you're a single parent, a guardian, or part of a bustling household, Koy by Parent-AI is here to bring the power of the village right to your fingertips. Join Koy today and experience a more connected, collaborative, and stress-free way to manage your children's activities. Because together, we make family feel like a team! Welcome to your modern village.
Screenshots
Verdict
The clearest difference is rating: Koy at 5.0 against Roshi's 4.2. Roshi's advantage is ratings volume (5 vs 1) and iOS requirement (12.0 vs 16.1). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Koy holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Roshi has 5 ratings behind it against 1, so its average is the more settled of the two.
Both ship on a similar rhythm, roughly every 3 months. Both last shipped on November 3, 2026.
| Parameter | Roshi | Koy |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (5 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | 1 |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.1 |
| Further details — not scored | ||
| Size | 32 MB | 5 MB |
| Age rating | 4+ | 12+ |
| Developer | Roshi LLC | Parent-AI LLC |
Customer experience
Roshi
Koy
In-app purchases
Roshi
No in-app purchases
Koy
No in-app purchases









