Monthly Fee Stamp

Manage tuition & lesson schedules for your music or hobby studio. Free to start!

■ What is Monthly Fee Stamp?
A tuition and lesson schedule management app designed for independent music and hobby instructors.
Perfect for guitar, piano, yoga, dance, and all kinds of private lessons.
Replace your paper tuition envelopes with a digital solution — manage student payments and lesson schedules from your smartphone.
Sync with Google Calendar to automate your entire lesson schedule.

■ Core Features (All Free)

【Tuition Stamp Management】
- Simply tap to stamp when tuition is received
- View each student's payment status at a glance
- Automatically records the date and amount
- Add notes for special reminders

【Lesson Schedule Management】
- Add one-time or recurring lessons
- Customize lesson duration (30 / 45 / 60 / 90 min)
- Select specific weeks (1st–5th week, or every week)
- Automatic lesson count calculation

【Full Google Calendar Integration】
- Lessons are automatically added to your calendar
- Deleted lessons are automatically removed from your calendar
- Bulk sync existing lessons
- 30-minute automatic reminders
- Student name and time displayed automatically

【Recurring Lesson Features】
- Select multiple days of the week (e.g., Mon / Wed / Fri)
- Choose specific weeks (e.g., 2nd & 4th week = twice a month)
- Set a date range for bulk registration
- Preview lesson count in real time

■ Perfect for Instructors Who:
- Run a private guitar or piano studio
- Teach yoga, dance, or other lessons at home
- Find tuition tracking tedious
- Want to manage schedules through Google Calendar
- Want to go paperless

■ Premium Features (from $1.99/month)
Smarter studio management for the price of a coffee.

【Calendar Overview】
- View all students' schedules in a monthly calendar
- Color-coded by student for easy management
- Automatic double-booking detection and alerts

【Unpaid Notices】
- Automatically lists students with unpaid tuition
- Send template emails with one tap (fully editable)
- A friendly auto-message footer keeps communication professional and comfortable

【CSV Export】
- Export tuition data in CSV format
- Useful for tax filing and bookkeeping
- Easy import into accounting software
- Per-student summary available

【Custom Stamps】
- Set your own original stamp design
- Strengthen your studio branding
- Boost student satisfaction
- Stand out from other studios

■ Getting Started is Simple
1. Teacher creates a Classroom ID
2. Students download the app
3. Students join using the Classroom ID
4. Tap to stamp when tuition is received — that's it!

Google Calendar setup:
1. Go to Settings → Connect Google Account
2. Grant permission
3. Lessons are automatically added to your calendar!

■ Security & Privacy
- All data is securely managed with Firebase
- Google Calendar access is limited to the minimum required
- Personal information is never shared with third parties
- Privacy Policy: https://sinqwell.net/privacy-policy/
- Terms of Service: https://sinqwell.net/terms-of-service/

■ Supported Devices
- iPhone (iOS 13.0 or later)
- iPad

■ Try It Free Today!
Simplify your tuition tracking and lesson scheduling.
Start with the free features — upgrade to Premium anytime for $1.99/month, cancel anytime.

【How to Use】
Full usage guide available at:
https://sinqwell.net/apps/monthly-fee-bag-app/
Step-by-step instructions for every screen, perfect for first-time users.