# i-Proof

> Visual authentication app for Bubble Tags™ and QR codes. (iPhone/iPad app by Prooftag.)

- Source: https://appshunter.io/ios/app/i-proof/id424006747 (this page in markdown: same URL + `.md`)
- Developer: [Prooftag](https://appshunter.io/developer/424006750)
- Category: Productivity, Utilities
- Price: Free
- Rating: 4.00/5 from 1 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 7.1 · 5 MB
- Languages: American English, French (France)
- Released: 2011-03-11
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/i-proof/id424006747/reviews.md

## What is i?

Welcome to the Prooftag® i-Proof application.  This application is dedicated to the visual authentication of Bubble Tags™.  i-Proof® simplifies and facilitates access to the Prooftag® authentication page of products or documents protected by Bubble Tags™.

We invite you to scan the QR Code or datamatrix beside the Bubble Tag™ to get direct access to the authentication page. 

To control the authenticity of a Bubble Tag™, please check and confirm:
•the presence of 3-D bubbles inside the original Bubble Tag™.
•the disposition of bubbles (shape, size, position) that must match with the picture appearing on the screen
•the product or document must match the description of the original as shown on the authentication page
If you want to know more on the authentication of a Bubble Tag™, we invite you to watch the Prooftag® video http://vimeo.com/37806535 .
This new version of i-Proof is able to read any conventional QR Code, therefore you do not need to download another application. 
If you have any doubt during the authentication of a Bubble Tag™, please contact Prooftag.

## Key features

- Visual authentication of Bubble Tags™
- Scan QR codes and datamatrix
- Direct access to authentication pages
- Compare bubble disposition with on-screen images
- Reads conventional QR codes

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/i-proof/id424006747/reviews.md

### 4/5 — This is the best system to authenticate wine bottles

*2012-07-12*

This app is the best system to authenticate wine bottles protected with Bubbletags.

### 1/5 — Awful

*2012-02-28*

It just crashes when you tap on the photo icon. It is garbage!

## Frequently asked questions about i

### What is i-Proof used for?

i-Proof is used for the visual authentication of Bubble Tags™, which protect products and documents. It allows users to scan QR codes or datamatrix symbols to access authentication pages and verify the authenticity of the tag.

### How do I authenticate a Bubble Tag™ with i-Proof?

To authenticate a Bubble Tag™, scan the QR code or datamatrix next to it using i-Proof. Then, check that the 3-D bubbles inside the tag are present and match the disposition (shape, size, position) shown on the authentication page.

### Can i-Proof read regular QR codes?

Yes, the latest version of i-Proof can read any conventional QR Code. This means you do not need to download a separate application for standard QR code scanning.

### What devices does i-Proof support?

i-Proof is available for iPhone, iPad, and iPod devices. It is designed to run on Apple's mobile operating system.

### Is i-Proof free to use?

Yes, i-Proof is available for free. There are no costs associated with downloading or using the application.

### What is the age rating for i-Proof?

i-Proof has an age rating of 4+. This indicates it is suitable for children aged 4 and above.

### How often is i-Proof updated?

The last update for i-Proof was on November 7, 2015, with version 3.2.0.0. This suggests that updates may not be very frequent.

### What is the user rating for i-Proof?

i-Proof has a user rating of 4.0 stars based on 1 rating. This indicates a generally positive reception from its users.

## Version history (last 5 releases)

### 3.2.0.0 — 2015-11-07

- Bug Fixes
- Compatibility iPhone 5 and 6
- Viewing events
- iOS 9.1 compatibility

### 3.1.0.0 — 2015-10-27

- Bug Fixes
- Compatibility iPhone 5 and 6
- Viewing events

### 3.0.0.0 — 2012-07-06

This new version of i-Proof is able to read any conventional codes(DataMatrix, QR Code, ...). A history also added.

### 2.0.1.0 — 2012-03-30

New design

### 2.0.0.0 — 2011-05-23

A new more intuitive version and easier to use. This new version reads the datamatrix instantaneously when passed over with the phone.
The user can also type the reference manually thanks to the keyboard. 
The Bubble Tag™ visualization is improved by the possibility to zoom in on the image.
New security functions are available to control Bubble Tags™ with a CCP (Control Code Prooftag) or CaptchaWB.

## More apps by Prooftag

- [eCerv](https://appshunter.io/ios/app/ecerv/id6770461581)

All apps by Prooftag: https://appshunter.io/developer/424006750

---

*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 2026-06-10.*