Comparison

KeeperChat Encrypted Messenger vs NOOK

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

Head to head
About

KeeperChat Encrypted Messenger

This secure messaging app offers end-to-end encryption and a zero-knowledge architecture for ultimate privacy. Features include self-destructing messages, message retraction, biometric login, and a private media vault that keeps photos off your device's gallery.

Highlights
  • End-to-end message encryption
  • Self-destruct timer
  • Message retraction
  • Private media vault
  • Biometric login
  • Zero-knowledge security architecture
Features
Read full description

KeeperChat - The leading secure messaging app. Why you need KeeperChat: • Because you deserve privacy. • Because you want to password protect your messages. • Because people are nosey. • Because you need a secure way to share your credit card and password information. • Because it does not store photos in your phone’s main gallery. • Because mistakes happen. • Because photos leak. • Because you changed your mind. • Because you sent something you regret. • Because you text the wrong thing to the wrong person. • Because you want to know when people screenshot your chat. • Because you want to pick up the conversation on your tablet. • Because it is easy to use. • Because all your friends will be on it. Need your private photos and messages to disappear? We’ve got you covered with our self-destruct timer. Sent something you regret? Retract your message without a trace at any time. Need to blur your screen from prying eyes? Our new stealth mode allows you to blur your screen for maximum privacy. Have you lost your phone and therefore all your messages? Login to the app on a new device and restore your conversations. Messaging apps are so easy to use we don’t often think twice about texting personal information to those we trust; however, the products we use to connect to each other were not built to handle this information securely. Existing messaging apps lack our zero-knowledge security architecture and necessary security protocols. KeeperChat enables you to chat with peace of mind knowing you are in control of the content you share, and who you share it with. Easily invite your friends, family, and colleagues to experience the future of secure messaging. Take control with KeeperChat. Product Benefits: • Private vault for messages, photos and videos • Private, encrypted media gallery (nothing is saved on device’s camera roll) • Biometric login and self-destruct protection for vault • Message retraction and self-destruct timer • Two-factor authentication • End-to-end message encryption • Unlimited devices and sync • Secure cloud backup • Private group chats • Auto-logout timer • Customizable messages with themes and animated stickers • Zero-knowledge, encrypted security architecture • Built-in Keeper password vault integration Developed by Keeper Security, the creator of Keeper, the world's most trusted password manager and digital vault. Terms and Conditions. Privacy Policy: https://keepersecurity.com/privacypolicy.html?t=chat Terms of Use: https://keepersecurity.com/termsofuse.html?t=chat

About

NOOK

Features
Read full description

*NOOK: Messenger – Your Privacy. Your Control.** NOOK: Messenger is the messaging app for those who value true privacy. With AES-256 encryption and zero-knowledge architecture, we guarantee: Nobody but you and your conversation partners can read your messages. Not even us. **ABSOLUTE SECURITY** • End-to-end encryption: AES-256 for all messages, files, and media • Zero-knowledge: We cannot read your content, even if we wanted to • Hardware security: Keys stored in iOS Keychain (Secure Enclave) • Biometric lock: Face ID / Touch ID app protection • Key rotation: Automatic key renewal for maximum security • No tracking: No analytics, no profiles, no ads **INTELLIGENT FEATURES** • Private rooms: Create protected group rooms for family, friends, or teams • Flexible access: QR code, password, security question, or live challenge • QR codes with TTL: Time-limited invitations (5-60 min or 24h) • Attachments: Share photos, documents, PDFs encrypted • Aliases: Use nicknames instead of real names • Unread badges: Never miss an important message • Push notifications: Receive alerts (without message content) **MODERN DESIGN** • Dark Mode: Automatic or manual selection • Color schemes: 8 beautiful themes (Purple, Blue, Green, Pink, Orange, Teal, Red, Yellow) • Animations: Smooth, modern transitions • Glassmorphism: Elegant, contemporary UI • iOS-native: Perfectly integrated into your iPhone/iPad **SIMPLE & FAST** • No registration: No email, no phone number, no account • Get started instantly: Create room in 3 seconds • Scan QR code: Join other rooms in seconds • iCloud sync: Automatic synchronization across all your Apple devices • Offline capable: Messages are encrypted and stored for later sending **WHY NOOK: Messenger?** Unlike WhatsApp, Signal, or Telegram: • No phone number required • No central database with your data • No metadata collection • No contact list uploads • No servers under our control • Apple cannot read your messages (encrypted in iCloud) **PERFECT FOR:** • Families who want to stay private • Friend groups with sensitive topics • Professional teams with confidential projects • Activists and journalists • Anyone who takes privacy seriously ** OUR MISSION** Privacy is a human right. NOOK: Messenger gives you back control. No data collection, no surveillance, no compromises. Just secure, private communication – the way it should be.

Screenshots

KeeperChat Encrypted Messenger4 screens
NOOK4 screens

Verdict

The call

The clearest difference is in-app purchases: KeeperChat Encrypted Messenger at none against NOOK's 3. KeeperChat Encrypted Messenger also leads on device support (3 vs 1) and iOS requirement (14.0 vs 26.0). NOOK's advantage is update cadence (every 3 weeks vs every 2 months). On price and ads 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. NOOK sells 3 in-app purchases, starting at $1.99 per month. KeeperChat Encrypted Messenger asks for nothing beyond the download.

UpkeepUpdate frequency

KeeperChat Encrypted Messenger ships an update every 2 months, NOOK every 3 weeks. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 6 level
KeeperChat Encrypted Messenger versus NOOK: the parameters behind the verdict, then further details
ParameterKeeperChat Encrypted MessengerNOOK
PriceFreeFree
Rating4.2 (387 ratings) — better—
Positive reviews65.1% of reviews—
Number of ratings387 — better—
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS14.0 — better26.0
Further details — not scored
Size109 MB5 MB
Age rating4+12+
DeveloperCallpod Inc.Alexander Bannikov

Bugs and requests

KeeperChat Encrypted Messenger

Reported bugs

3 issues
  • Invitations not being received by contacts
  • Inability to delete entire chat histories
  • Inconsistent performance, app crashes and freezes

Requested features

4 requests
  • Ability to organize media in folders
  • Option to change contact display names
  • Customizable notification messages
  • Seamless integration with other devices

NOOK

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

KeeperChat Encrypted Messenger

No in-app purchases

3 purchases

NOOK

Subscriptions2
  • NOOK Premium Monthly$1.991 Month
  • NOOK Premium Yearly$19.991 Year
One-time1
  • Lifetime (Premium)$44.99

Questions

Is KeeperChat Encrypted Messenger free?
KeeperChat Encrypted Messenger is free to download, with no in-app purchases.
Is NOOK free?
NOOK is free to download, with in-app purchases available.
Do KeeperChat Encrypted Messenger or NOOK have ads?
Neither KeeperChat Encrypted Messenger nor NOOK shows ads.
Which is updated more often, KeeperChat Encrypted Messenger or NOOK?
KeeperChat Encrypted Messenger ships an update every 2 months, and NOOK every 3 weeks. Most recently, KeeperChat Encrypted Messenger was updated on October 29, 2026 and NOOK on October 25, 2026.

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