CirclePay vs Monthly Fee Stamp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CirclePay
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部活・サークル・飲み会幹事向けの集金管理アプリ CirclePayは「集金・会費管理」に特化したシンプルなツールです。 • メンバー登録不要ですぐ使える • イベントごとに支払い状況を一覧管理 • 未払いリストも自動生成でストレスフリー 面倒な集金作業を3ステップで解決。 簡単・軽量なアプリで幹事の負担を大幅に軽減します。
Monthly Fee Stamp
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■ 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.
Screenshots
Verdict
The clearest difference is in-app purchases: CirclePay at none against Monthly Fee Stamp's 3. Monthly Fee Stamp's advantage is iOS requirement (15.5 vs 18.4). On price, update cadence, ads and device support 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. Monthly Fee Stamp sells 3 in-app purchases, starting at $1.99 per month. CirclePay asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 2 days. The most recent releases landed on September 9, 2026 and September 14, 2026 respectively.
| Parameter | CirclePay | Monthly Fee Stamp |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 days | Every 2 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.4 | 15.5 — better |
| Further details — not scored | ||
| Size | 15 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | Sakihara Riki | SINQWELL |
In-app purchases
CirclePay
No in-app purchases
Monthly Fee Stamp
- Premium Monthly$1.991 Month
- プレミアム機能$4.99
- Premium Lifetime$17.99








