NoteLens: Banknote Value
Currency identifier & worth
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Photograph any banknote to identify its country, series and variety, read its serial number, flag possible error notes, and see a market reference value range.
Issuer, signature, print series, serial number — details that separate a face-value bill from a collectible note. Photograph a banknote — front or back — and NoteLens identifies the series, reads the serial, and keeps your collection organized.
WHY COLLECTORS USE NOTELENS
Identify the note in your hand.
A banknote's value lives in its details: the issuing country, the series and date, the signature combination, the denomination, and the printing variety. NoteLens reads the note and helps you match the likely series and type, so you understand the specific bill you're holding — not just its face value.
Read the serial number.
Serial numbers are where paper money gets interesting. NoteLens helps you log the serial and recognize the patterns collectors chase — solid serials, ladders, repeaters, low numbers, and replacement or star notes. A "common" bill with a special serial can be worth far more than its face.
Catch possible error notes.
Misprints, ink smears, miscut margins, missing print and fold-over errors can turn an ordinary bill into a prize. NoteLens highlights what to inspect for the error types collectors look for, so you can check a note and record what you find.
See a market reference value range.
For each match, NoteLens shows a reference range by type and condition so you have a realistic sense of worth before you buy, sell, or trade. Adjust the grade and the range responds. These are reference estimates, not appraisals, certified opinions, or financial advice — actual prices depend on grade, demand, and where you sell.
Grade condition the collector way.
Condition drives a note's worth. NoteLens walks you through the standard paper-money grades — Uncirculated, About Uncirculated, Extremely Fine, Very Fine, Fine and Good — so you grade consistently and store the result with each note.
Build a collection that stays with you.
Save every banknote you scan into a personal collection on your device. Track countries, series, serials, conditions and reference values, sort and filter your holdings, and watch your collection's total reference value grow. Earn collector milestones as you go.
Learn the craft, for free.
NoteLens ships with in-app guides any collector can read without subscribing: how grading works, the serial-number patterns worth real money, how to recognize replacement and star notes, the common error types, and how to store and handle notes so they stay crisp for decades.
HOW IT WORKS
1. Capture or pick a photo of the banknote — front or back.
2. NoteLens identifies the likely country, series and type and shows a confidence indicator — confirm it or adjust by hand.
3. Log the serial number and set the condition grade to refine the reference value range.
4. Save it to your collection and keep collecting.
PRIVACY YOU CAN UNDERSTAND
Your collection, scan history and preferences are stored on your device. There are no accounts and no third-party trackers or advertising SDKs. When online recognition is enabled, the photo you scan is sent securely to our recognition service to look up the note, and is not retained after processing or used for advertising or tracking. See the in-app Privacy Policy for full details.
SUBSCRIPTION
NoteLens is an auto-renewing subscription. Plans are offered weekly and annually (for example, $12.99 per week or $89.99 per year; limited-time promotional pricing may be available). Payment is charged to your Apple ID at confirmation of purchase. The subscription renews automatically at the same price and period unless auto-renew is turned off at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Prices may vary by region.
Terms of Use: https://notelens-five.vercel.app/terms
Privacy Policy: https://notelens-five.vercel.app/privacy
Start with a single scan — see what your banknotes are really worth.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, 懿峰 吕, 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:
- Purchases
- Contact Info
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- User Content
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 懿峰 吕
- Size
- 114.2 MB
- Category
- Reference
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 5 more
- English, French, German, Japanese, Simplified Chinese, Spanish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- NoteLens Pro Weekly $9.99
- NoteLens Pro Annual Offer $49.99
- NoteLens Pro Annual $59.99
- NoteLens Pro Annual Winback $59.99
- Copyright
- © 2026 Yifeng Lv