# QDD: Student, Lesson & Payment — Bookkeeping for private tutors > Bookkeeping app for private tutors to manage students, lessons, and payments. (iPhone/iPad app by CrumbQuest LLC.) - Source: https://appshunter.io/ios/app/qdd-student-lesson-and-payment/id6810094239 (this page in markdown: same URL + `.md`) - Developer: [CrumbQuest LLC](https://appshunter.io/developer/6810094241) - Category: Business, Education - Price: Free - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 15.0 · 52 MB - Languages: American English, Chinese (Simplified, China) - Released: 2026-09-21 - Data updated: 2026-10-05 - Monetization: free ## What is QDD? QDD is a bookkeeping app for private tutors — piano teachers, language tutors, anyone who teaches one-on-one and has to keep track of who paid for what. It ties three things together that usually live in three different places: the lessons you schedule, the lessons you actually taught, and the payments that came in. Every payment is matched to the lessons it covers, so when a parent asks "what do we owe?" the answer is already there. WHAT IT DOES • Students and families — one record per family, with its students, their regular lesson time, hourly price and your notes. • Calendar — recurring lessons are generated for you; reschedule, cancel or mark attendance in a tap. • Payments — log each payment as it arrives (cash, check, Zelle, Venmo, bank transfer, WeChat Pay, Alipay…) and see exactly which lessons it covers and how much is still outstanding. • Per lesson or prepaid — bill each family per lesson or from a prepaid block of lessons; the app tells you when a family's balance is running low. • Monthly statements — a clean PDF per family showing lessons taught and money received, ready to send. • Parent emails, sent in your name — lesson reminders, statements, payment confirmations and schedule changes. Every parent first receives a short notice explaining what they will get, with a link to opt out of any of it. • Activity history — every change is recorded, so you can always see what happened and when. • Face ID unlock, English and Chinese, and an export of your data whenever you want it. WHAT IT DOES NOT DO QDD never touches your money. It is not a payment processor and never asks for card or bank details — a payment record simply describes money that already changed hands somewhere else. Parents and students do not get accounts, and no other tutor can ever see your records. WHO IT IS FOR Independent tutors with roughly ten to forty students who are done with spreadsheets, chat threads and mental arithmetic at the end of every month. Made by CrumbQuest LLC. Questions and requests: hello@qingdouding.com ## Key features - Student and family management - Automated lesson scheduling - Payment logging and tracking - Per-lesson or prepaid billing - Monthly PDF statements - Automated parent emails - Activity history log ## Is QDD safe? Not enough ratings yet to assess QDD. ## Is QDD legit? QDD: Student, Lesson & Payment has limited verification signals. The AppsHunter Legitimacy Score for QDD is 58 out of 100 points across 7 verification signals from App Store and developer data. ## Frequently asked questions about QDD ### What is QDD? QDD is a bookkeeping app designed specifically for private tutors. It helps you manage student information, schedule lessons, track payments, and generate statements, all in one place. ### How does QDD handle payments? QDD allows you to log payments received via various methods like cash, check, Zelle, Venmo, and bank transfers. Each payment is matched to the specific lessons it covers, showing you exactly what is still outstanding. ### Can QDD send reminders to parents? Yes, QDD can send automated emails to parents on your behalf for lesson reminders, statements, payment confirmations, and schedule changes. Parents receive a notice and can opt out. ### Does QDD charge any fees for transactions? No, QDD does not touch your money and is not a payment processor. It does not ask for card or bank details; it simply records payments that have already occurred elsewhere. ### What kind of reports does QDD generate? QDD can generate clean PDF monthly statements for each family, detailing lessons taught and money received, making it easy to share with parents. ### Is QDD available on multiple devices? Based on the information, QDD is supported on iPhone and iPod devices. It is not specified if Android or desktop versions are available. ### How often is QDD updated? The latest version of QDD was released on October 2, 2026, indicating recent development activity. Specific update frequency is not detailed but suggests ongoing support. ### Does QDD have ads? No, QDD does not contain advertisements. The app is free to use without any ad interruptions. ## Version history (last 5 releases) ### 1.5 — 2026-10-02 Signing out now stays signed out: Face ID no longer signs you straight back in. Changing a student's lesson time keeps prepaid lessons in the same week, and a prepaid lesson keeps the rate it was paid at. ### 1.4 — 2026-09-29 The Support and My Account pages now show their own name in the header. The Face ID prompt at launch no longer shows a stray keyboard bar over the privacy cover, and the cover uses the same localized app name as the home screen. ### 1.3 — 2026-09-26 Copy your invite picture with one tap and paste it straight into a WeChat chat. Messages now appear at the bottom of the screen. Terms and Privacy links point to our main website. ### 1.2 — 2026-09-25 Refer a friend: share your own invite link, code or QR picture with other tutors, and see who joined with it. Files attached to a Support conversation now open inside the app. Small sign-in fixes. ### 1.1 — 2026-09-23 Sign-in now tells you when the app could not reach the server instead of blaming your password, the account menu shows your display name, and the app asks you to update when a newer version is required. --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-05.*