Comparison

GDG London vs Authenticator App

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

Head to head
About

GDG London

Features
Read full description

GDG London Event app is a community-run conference app aimed to bring technologists, developers, students, tech companies, and speakers together in one location to learn, discuss and experiment with technology.

About

Authenticator App

Enhance your online security by generating secure one-time passwords for social media, email, and crypto wallets. This app offers a fast QR code scanner, biometric security, and works offline. It also includes a robust password manager and strong password generator.

Highlights
  • Time-based One-Time Passwords (TOTP)
  • Lightning-Fast QR Code Scanner
  • Secure iCloud Backup & Sync (PRO)
  • Universal Platform Compatibility
  • Biometric Security (Face ID/Touch ID)
  • Offline Token Generation
  • Robust Password Manager
  • Strong Password Generator
Features
Read full description

Authenticator App adds an essential layer of security to your online life by generating secure Time-based One-Time Passwords. Whether you are securing your social media, email, or crypto wallets, our app ensures your digital identity remains strictly yours. KEY FEATURES & BENEFITS: ‣ Lightning-Fast QR Code Scanner: Set up new accounts in seconds. Simply point your camera at the QR code provided by the service, and Authenticator App will configure the rest automatically. ‣ Secure iCloud Backup & Sync: Lost your phone? No problem! With PRO feature, you can securely back up and encrypt your data via iCloud so you can easily restore your tokens on a new device. ‣ Apple Watch App (PRO): See your 2FA codes right on your wrist. Accounts sync automatically from your iPhone, and codes keep working even when your phone isn't nearby. ‣ Universal Compatibility: Works seamlessly with thousands of popular platforms including Google, Facebook, Instagram, Microsoft, Amazon, Binance, Coinbase, GitHub, Dropbox, and many more. ‣ Biometric Security: Lock your authenticator app with Face ID or Touch ID. Your 2FA codes stay safe from prying eyes, even if someone else has your unlocked phone. ‣ Works Completely Offline: Generate secure tokens without an internet connection. Authenticator App works flawlessly in airplane mode or when you have zero signal. PRIVACY YOU CAN TRUST: We believe your data belongs to you. Authenticator App does not collect, store, or share your personal information or authentication codes on our servers. All data is encrypted and stored locally on your device. Privacy Policy: https://techsmart.bio/authenticatorapp/privacy-policy.html Terms of Use: https://techsmart.bio/authenticatorapp/terms-of-use.html

Screenshots

GDG London4 screens
Authenticator App4 screens

Verdict

The call

The clearest difference is in-app purchases: GDG London at none against Authenticator App's 4. GDG London also leads on update cadence (every 2 days vs every 6 days) and iOS requirement (12.0 vs 15.6). Authenticator App's advantage is device support (4 vs 2). 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. Authenticator App sells 4 in-app purchases, starting at $5.99 per 7 days. GDG London asks for nothing beyond the download.

UpkeepUpdate frequency

GDG London ships an update every 2 days, Authenticator App every 6 days. The most recent releases landed on September 8, 2026 and September 27, 2026 respectively.

Scorecard4 real differences · 6 level
GDG London versus Authenticator App: the parameters behind the verdict, then further details
ParameterGDG LondonAuthenticator App
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 2 days — betterEvery 6 days
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS12.0 — better15.6
Further details — not scored
Size80 MB28 MB
Age rating4+4+
DeveloperSUPRTECH LTDPro App Company Limited

In-app purchases

None

GDG London

No in-app purchases

4 purchases

Authenticator App

Subscriptions3
  • Weekly$5.997 Days
  • Monthly3 Days trial$9.991 Month
  • Yearly3 Days trial$49.991 Year
One-time1
  • Lifetime$99.99

Questions

Is GDG London free?
GDG London is free to download, with no in-app purchases.
Is Authenticator App free?
Authenticator App is free to download, with in-app purchases available.
Do GDG London or Authenticator App have ads?
Neither GDG London nor Authenticator App shows ads.
Which is updated more often, GDG London or Authenticator App?
GDG London ships an update every 2 days, and Authenticator App every 6 days. Most recently, GDG London was updated on September 8, 2026 and Authenticator App on September 27, 2026.

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