# Badges - Secure Badging & GPS — Messenger, Classifieds, GPS

> Secure, anonymous messaging and data sharing with cryptographic digital badges. (iPhone/iPad app by Gregory Conti.)

- Source: https://appshunter.io/ios/app/badges-secure-badging-and-gps/id1162552534 (this page in markdown: same URL + `.md`)
- Developer: [Gregory Conti](https://appshunter.io/developer/1162552533)
- Category: Social Networking, Business
- Price: Free
- Rating: 5.00/5 from 4 App Store ratings
- Age rating: 17+
- Requires: iOS 12.0 · 4 MB
- Languages: American English, French (France), German (Germany), Greek, Italian, European Portuguese, Russian, Chinese (Simplified, China), European Spanish
- Released: 2017-02-16
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/badges-secure-badging-and-gps/id1162552534/reviews.md

## What is Badges?

Badges provides true end-to-end security for Privacy and Anonymity.
Claiming compliance with NIST SP800-56 rev3 C(1e,2s) and HKDF (RFC5869) standards and using AES128, SHA256, ECDH128, ECDSA256, Linkable Ring Signatures.

Badges allows you to create cryptographic Digital Badges, where members are added over Bluetooth (physical pairing for key provisioning) and Messages, images, classifieds and GPS points are shared with end-to-end security through internet.

Access Control:
Badges allows you to cryptographically verify that members are granted access to the same Badges then you , without revealing your identity. In addition, Badges owner can distribute cryptographic Vouchers to their Members.
  
Physical pairing with members over bluetooth:
Because keys provisioning and keys exchange over the internet (even using https) remains a critical security issue, Badges propose to add members to Badges using Bluetooth thanks to physical and proximity pairing. This ensures no man in the middle attack is possible, and also guarantees non-repudiation of members.
This also ensures that People in your Badge are in most cases closely related to you.
 
Anonymity in Messenger, Classifieds and GPS:
Badges uses novel Linkable Ring Signatures (LRS) over elliptic curve (P-256) to provide anonymity of members.
The messages, images, classifieds and GPS points sent, and the voucher are End-to-End encrypted and cryptographically ensured Anonymous using so called LRS.
 
Anonymous Badges properties:
When creating a Badge, you can select whether you are the only one allowed to add members to this Badge or if any other Badge member can add new members to this Badge.
In addition, you can select whether you are the only one allowed to send message, image and classifieds to the Badge, or if every member of the Badge is allowed to do so.
This is particularly useful when you need to create professional Digital Badges
 
Badging functionality:
Each Badge can be used to allow people entering events, accessing services with voucher (e.g. private club), attest of privileges given by others, or prove ownership of a badge.
 
Voucher functionality:
Badges owners can distribute cryptographic vouchers.
  
Cloud based:
Badges is automatically synchronised on all your devices running under the same icloud account using iCloud keychain and iCloud drive.
You can start a discussion on your iPhone, then continue it on your iPad, seamlessly.
Thanks to End-to-End security, all messages, images, classifieds and GPS points can be securely stored outside of your devices, in cloud Servers.
This greatly minimise the storage consumption on your device while providing easy access to any of your device.
  
The messages, classifieds and GPS points of Badges that are not used for more than 3 weeks are automatically deleted.

## Key features

- End-to-end encrypted messaging
- Anonymous data sharing
- Cryptographic digital badges
- Bluetooth physical pairing
- GPS point sharing
- Access control with vouchers
- Cloud synchronization across devices


## Frequently asked questions about Badges

### What is Badges used for?

Badges is used for secure, end-to-end encrypted communication and data sharing, including messages, images, classifieds, and GPS points. It also facilitates access control and privilege attestation through cryptographic digital badges and vouchers.

### How does Badges ensure security?

Badges employs advanced cryptographic standards like NIST SP800-56 rev3 and HKDF, along with AES128, SHA256, ECDH128, ECDSA256, and Linkable Ring Signatures. Physical pairing via Bluetooth prevents man-in-the-middle attacks during key provisioning.

### Can I share my location with Badges?

Yes, Badges allows you to share GPS points with end-to-end security. These shared GPS points are cryptographically ensured to be anonymous and are securely stored in the cloud.

### How does Badges handle anonymity?

Badges uses Linkable Ring Signatures (LRS) over elliptic curves to provide anonymity for members. This ensures that messages, images, classifieds, and GPS points sent within a badge are cryptographically anonymous.

### What is the physical pairing feature in Badges?

Physical pairing over Bluetooth is a key feature that allows members to be added to a badge through proximity pairing. This method of key provisioning is more secure than internet-based methods and guarantees non-repudiation.

### How are my Badges data synchronized?

Badges data is automatically synchronized across all your devices using iCloud Keychain and iCloud Drive. This allows you to seamlessly continue conversations or access data from your iPhone to your iPad.

### What happens to old messages in Badges?

Messages, classifieds, and GPS points within Badges that have not been used for more than 3 weeks are automatically deleted. This helps to minimize storage consumption on your device.

### Is Badges available on multiple devices?

Yes, Badges is supported on iPhone and iPad. It synchronizes automatically across devices using iCloud, allowing for a seamless cross-platform experience.

## Version history (last 5 releases)

### 2.30 — 2022-07-03

As per Apple guidelines, added account deletion option.

### 2.28 — 2021-06-01

Bug fixes.

### 2.27 — 2021-04-18

Bug fixes.

### 2.26 — 2021-04-11

Bug fixes.

### 2.25 — 2021-01-17

Bug fixes.

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## More apps by Gregory Conti

- [Circles - Encrypted E2E VOIP +](https://appshunter.io/ios/app/circles-encrypted-e2e-voip-plus/id1290687039)
- [Personas - you Are a brand !](https://appshunter.io/ios/app/personas-you-are-a-brand/id1556795059)

All apps by Gregory Conti: https://appshunter.io/developer/1162552533

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*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.*