For teachers managing monthly tuition. Record payments with stamps, manage schedules, and send unpaid reminders—all in one place. Try premium features in Demo Mode.
■ 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
■ Simple to use
The teacher signs up (a class ID is created automatically—ready to use right away)
The teacher registers each student (a QR code is issued for each one)
The student downloads the app and joins by scanning the QR code
When tuition is received, the teacher just taps to add a stamp!
■ 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.
Ratings & Reviews
This app has not received enough ratings or reviews to display an overview.
You can now add "Other payments" in bulk.
Register the same item and amount (recital fees, materials, etc.) for several students at once.
Freely choose the target students with checkboxes (e.g., only those attending).
Created as "unpaid" for the selected students; record each receipt individually as before.
Thank you for using the app.
Version 1.20.0
The developer, SINQWELL, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
Financial Info
Contact Info
User Content
Identifiers
Privacy practices may vary based, for example, on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Provider
SINQWELL
Size
62.4 MB
Category
Productivity
Compatibility
Requires iOS 14.0.0 or later.
iPhone Requires iOS 14.0.0 or later.
iPad Requires iPadOS 14.0.0 or later.
iPod touch Requires iOS 14.0.0 or later.
Mac Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.