Comparison

PROXIMITY® vs 16 Relay Controller

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

PROXIMITY®

Authentication Made Simple

Free

🔧 Utilities

★ 4.740 ratingsView app →

About

PROXIMITY®

This app securely stores and manages your passwords and authenticator codes using zero-knowledge encryption. It offers a unique peer-to-peer recovery system, eliminating the need for master passwords or recovery keys. Securely share sensitive information with trusted contacts.

Highlights

Zero-knowledge password management
Peer Identity Verification recovery
Built-in TOTP authenticator
Secure password generation
AutoFill and browser extensions
Secure data sharing

Features

Read full description

PROXIMITY® – Zero-Knowledge Password Manager & Authenticator (2FA) PROXIMITY is a zero-knowledge password manager, two-factor authenticator (2FA), and secure vault. Your data stays private, encrypted, and fully under your control — no master passwords, no recovery keys, no security questions. Only you and your trusted peers can access it. ZERO-KNOWLEDGE BY DESIGN Your private key never leaves your device. All encryption and decryption happens locally — cloud servers store encrypted data only. Even Proximity cannot read or decrypt your credentials. PATENTED PEER IDENTITY VERIFICATION Your trusted network is your recovery system. If you lose your phone or reinstall the app, a trusted contact can securely verify you and return your encrypted key — without exposing your data or involving Proximity. No centralized recovery risk, no backdoors. PASSWORD MANAGER + AUTHENTICATOR (2FA / TOTP) Secure password generator Unlimited stored credentials Built-in TOTP authenticator (Google Authenticator compatible), QR code setup Push notifications for approval AUTOFILL & BROWSER SUPPORT iOS AutoFill, Safari extension, Chrome extension, and seamless login across devices. SECURE SHARING Share passwords, authenticator codes, and sensitive data with approved trusted contacts — you decide what's shared and what stays private. WHAT YOU CAN STORE Passwords, authenticator accounts, secure notes, documents and images, recovery codes, and other important records — all under device-only encryption. SIMPLE SETUP Download Proximity, create your account, add at least one trusted contact, and you're secured. FREE TO USE Proximity is currently free, with no paid tier: unlimited accounts, sharing, trusted connections, secure document storage, and full activity history — all included. YOUR DATA. YOUR KEYS. YOUR CONTROL. Your data is only accessible on your registered device. Your trusted connections are your recovery system. Proximity cannot access, reset, or recover your account. Choose PROXIMITY® and take back control of your online identity. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

16 Relay Controller

Features

Read full description

App to control henry solutions 16 Relay hardware devices. The 16 Relay controller connects to an IOT device via web service calls. The webservice endpoints you connect to is determined by the application settings. The default IP address of the webservice for the relay controller is set to a non-routable IP address of 192.168.4.2. The app only uses http and not https so it is only suitable for controlling IOT devices in a closed environment. The 16 Relay controller is limited to sending only the following URL request to the IP address you enter in the settings: http://[ip-address]/status http://[ip-address]/status/[relay-number] http://[ip-address]/on/[relay-number] http://[ip-address]/off/[relay-number] http://[ip-address]/allon http://[ip-address]/alloff http://[ip-address]/hb

Screenshots

PROXIMITY®4 screens

16 Relay Controller3 screens

Verdict

The call

The clearest difference is in-app purchases: 16 Relay Controller at none against PROXIMITY®'s 2. PROXIMITY®'s advantage is update cadence (every 4 weeks vs every 34 months). On price, ads, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. PROXIMITY® sells 2 in-app purchases, starting at $2.99 per month. 16 Relay Controller asks for nothing beyond the download.

UpkeepUpdate frequency

PROXIMITY® ships an update every 4 weeks, 16 Relay Controller every 34 months. The most recent releases landed on October 5, 2026 and October 6, 2026 respectively.

Scorecard2 real differences · 8 level

PROXIMITY® versus 16 Relay Controller: the parameters behind the verdict, then further details
Parameter	PROXIMITY®	16 Relay Controller
Price	Free	Free
Rating	4.7 (40 ratings) — better	—
Positive reviews	100.0% of reviews	—
Number of ratings	40 — better	—
Update frequency	Every 4 weeks — better	Every 34 months
Ads	No	No
In-app purchases	Yes	No — better
Monetization	Free with in-app purchases	—
Devices	iPhone, iPad	iPhone, iPad
Requires iOS	18.6	18.6
Further details — not scored
Size	77 MB	0 MB
Age rating	4+	4+
Developer	PIV Security LLC	Mike Henry

In-app purchases

2 purchases

PROXIMITY®

Subscriptions2

Premium$2.991 Month
Premium Annual$24.991 Year

None

16 Relay Controller

No in-app purchases

Questions

Is PROXIMITY® free?

PROXIMITY® is free to download, with in-app purchases available.

Is 16 Relay Controller free?

16 Relay Controller is free to download, with no in-app purchases.

Do PROXIMITY® or 16 Relay Controller have ads?

Neither PROXIMITY® nor 16 Relay Controller shows ads.

Which is updated more often, PROXIMITY® or 16 Relay Controller?

PROXIMITY® ships an update every 4 weeks, and 16 Relay Controller every 34 months. Most recently, PROXIMITY® was updated on October 5, 2026 and 16 Relay Controller on October 6, 2026.