Comparison

Authenticator for Uphold vs NostrKey Web Extension

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

Head to head
About

Authenticator for Uphold

Read full description

Secure your digital accounts with Authenticator for Uphold, a powerful and easy-to-use app designed to protect your online identity with advanced two-factor authentication (2FA). Whether you're managing financial platforms, crypto wallets, or personal accounts, this app ensures an extra layer of security for your sensitive data. Stay protected with fast, reliable authentication codes and seamless login verification—all in one secure place. With built-in encryption and biometric protection, your data remains safe at all times. The app also supports automatic backup, so you never lose access to your accounts even when switching devices. Designed with a clean and intuitive interface, Authenticator for Uphold makes account security simple for everyone—from beginners to advanced users. Key Features: - Two-Factor Authentication (2FA): Generate secure, time-based codes for your accounts - Fast & Reliable Access: Instant code generation for quick logins - Biometric Protection: Secure your data with Face ID / Touch ID - Backup & Restore: Keep your accounts safe with automatic backup options - Multi-Account Support: Manage all your authentication codes in one place - User-Friendly Interface: Clean, simple, and easy to navigate Perfect for: - Protecting crypto and financial accounts - Enhancing online security - Managing multiple logins safely - Users who value privacy and data protection Take full control of your account security and enjoy peace of mind knowing your data is protected. Subscriptions & In-App Purchases: Weekly — $4.99 Monthly — $12.99 Yearly — $39.99 Lifetime — $59.99 Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. You can manage or cancel your subscription anytime in your device settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://docs.google.com/document/d/1ZlaTP009KyMSqqEXRdR2ihZsFIYoog62ldOWNn7OnKs/edit?tab=t.0 "

About

NostrKey Web Extension

Features
Read full description

NostrKey is a Safari extension for macOS and iOS that manages your Nostr identities and signs events on your behalf — your private keys never touch the websites you visit. Features: • NIP-07 signing — works with any Nostr web app • NIP-46 nsecBunker — remote signing, your key never leaves the bunker • NIP-44 encryption — modern ChaCha20-Poly1305 messaging • Encrypted document vault — zero-knowledge storage on Nostr relays • API key vault — encrypted secret storage • Master password — keys encrypted at rest with auto-lock • Multi-profile support — manage multiple Nostr identities • Per-site permissions — control which sites can request signatures • iCloud sync — profiles, settings, and vault data sync across your Apple devices via storage.sync (Safari 16+, user-toggleable) Your keys. Your control. No data collection. No tracking. Fully open source.

Screenshots

Authenticator for Uphold4 screens
NostrKey Web Extension4 screens

Verdict

The call

The clearest difference is in-app purchases: NostrKey Web Extension at none against Authenticator for Uphold's 5. Authenticator for Uphold's advantage is update cadence (every 2 weeks vs monthly) and iOS requirement (13.0 vs 16.0). On price, ads and device support 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. Authenticator for Uphold sells 5 in-app purchases, starting at $4.99 per 7 days. NostrKey Web Extension asks for nothing beyond the download.

UpkeepUpdate frequency

Authenticator for Uphold ships an update every 2 weeks, NostrKey Web Extension monthly. The most recent releases landed on October 24, 2026 and October 14, 2026 respectively.

Scorecard3 real differences · 5 level
Authenticator for Uphold versus NostrKey Web Extension: the parameters behind the verdict, then further details
ParameterAuthenticator for UpholdNostrKey Web Extension
PriceFreeFree
Rating2.8 (6 ratings) — better—
Number of ratings6 — better—
Update frequencyEvery 2 weeks — betterMonthly
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS13.0 — better16.0
Further details — not scored
Size70 MB15 MB
Age rating4+4+
DeveloperSBE Ide Ct LLCHumanjava Enterprises

In-app purchases

5 purchases

Authenticator for Uphold

Subscriptions4
  • Weekly-Trial3 Days trial$4.997 Days
  • Weekly$4.997 Days
  • Monthly$12.991 Month
Show 1 more
  • Yearly$39.991 Year
One-time1
  • Lifetime$59.99
None

NostrKey Web Extension

No in-app purchases

Questions

Is Authenticator for Uphold free?
Authenticator for Uphold is free to download, with in-app purchases available.
Is NostrKey Web Extension free?
NostrKey Web Extension is free to download, with no in-app purchases.
Do Authenticator for Uphold or NostrKey Web Extension have ads?
Neither Authenticator for Uphold nor NostrKey Web Extension shows ads.
Which is updated more often, Authenticator for Uphold or NostrKey Web Extension?
Authenticator for Uphold ships an update every 2 weeks, and NostrKey Web Extension monthly. Most recently, Authenticator for Uphold was updated on October 24, 2026 and NostrKey Web Extension on October 14, 2026.

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