Comparison

Engbird vs Keya Authenticator

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

Head to head
About

Engbird

Monitor environmental conditions like temperature and humidity with smart sensors. View real-time and historical data, export it, and manage multiple devices and users. Supports various sampling intervals and multiple languages.

Highlights
  • Real-time temperature and humidity display
  • Configurable sampling intervals
  • Historical data viewing (day, week, month, year)
  • CSV data export
  • Multi-sensor and multi-user support
  • Multi-language support
Features
Read full description

Engbird is the easiest way to monitor the environmental conditions affecting the things you care about. Quickly pair the app with our Temperature & Humidity Smart Sensors and enjoy the sleek interface for viewing current and past conditions.It supports the following features: - Displays Temperature & Humidity in real-time. - The sampling interval can be configured for 10s, 30s, 1min, 2min, 5min, 10min, 30min, record length up to 30000. - Can easily view historical data by day, week, month, year, and can export historical data in csv format. - Support a mobile phone to access multiple sensors, you can also access multiple mobile phones with the same sensor - Multi-language support: English, German, French, Spanish, Italian, Portuguese, Russian, Japanese, Chinese.

About

Keya Authenticator

Features
Read full description

Your passwords alone aren't enough. Every account worth protecting deserves a second lock, one that never phones home. Keya Authenticator generates secure one-time codes for any site that supports two-factor authentication, with no account to create, no server to trust, and no subscription to cancel. PRIVATE BY DESIGN Every secret you add stays in the iOS Keychain, encrypted, locked to your device, and invisible the moment your screen goes dark. Keya Authenticator has zero network entitlements, so it physically cannot connect to the internet. NEVER RACE THE CLOCK Most authenticator apps leave you scrambling when a code is about to expire. Keya shows you the next code before the current one runs out, so you always have time to type it in. BIOMETRIC UNLOCK Protect your codes with Face ID or Touch ID, with a PIN fallback always available and automatic lockout after repeated wrong attempts. EASY TO SWITCH Moving from another app is painless: import directly from Google Authenticator, Aegis, 2FAS, Raivo, andOTP, or LastPass, or just scan any standard QR code. ENCRYPTED BACKUPS Export your entire vault as an AES-256-GCM encrypted backup and store it anywhere you like. No cloud account required. OPEN SOURCE Every line of code is publicly available on GitHub under the GPL v3 license, so you can read it, audit it, or build it yourself. That's what trust through transparency actually looks like. FREE, FOREVER There are no ads, no subscription, and no freemium tricks: every feature is available from day one. A voluntary tip jar is the only way to support development, and it's entirely optional. WORKS WITH EVERYTHING Google, GitHub, Apple, Microsoft, Dropbox, Amazon, Discord, and hundreds more: any service built on TOTP (RFC 6238) or HOTP (RFC 4226) works here.

Screenshots

Engbird4 screens
Keya Authenticator4 screens

Verdict

The call

The clearest difference is in-app purchases: Engbird at none against Keya Authenticator's 3. Engbird also leads on device support (3 vs 1) and iOS requirement (12.0 vs 18.0). Keya Authenticator's advantage is update cadence (every 3 weeks vs every 6 weeks). 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. Keya Authenticator sells 3 one-off in-app purchases. Engbird asks for nothing beyond the download.

UpkeepUpdate frequency

Engbird ships an update every 6 weeks, Keya Authenticator every 3 weeks. The most recent releases landed on October 20, 2026 and October 8, 2026 respectively.

Scorecard4 real differences · 6 level
Engbird versus Keya Authenticator: the parameters behind the verdict, then further details
ParameterEngbirdKeya Authenticator
PriceFreeFree
Rating1.8 (37 ratings) — better—
Positive reviews13.1% of reviews—
Number of ratings37 — better—
Update frequencyEvery 6 weeksEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.0 — better18.0
Further details — not scored
Size17 MB3 MB
Age rating4+4+
DeveloperShenzhen Inkbird Technology Co. LtdEldar SHAIDULLIN

Bugs and requests

Engbird

Reported bugs

5 issues
  • App crashes on startup after updates
  • Bluetooth connection issues, sensors not detected
  • Temperature and humidity values displayed incorrectly
  • Graph time scales do not match actual data
  • Sensor names not displayed in app

Requested features

5 requests
  • Add push notifications for temperature/humidity alerts
  • Improve graph functionality (zoom, customize, etc.)
  • Allow calibration of temperature and humidity sensors
  • Provide more detailed historical data export options
  • Add support for multiple sensors/devices in one view

Keya Authenticator

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Engbird

No in-app purchases

3 purchases

Keya Authenticator

One-time3
  • Coffee$2.99
  • Pizza$9.99
  • Family Dinner$29.99

Questions

Is Engbird free?
Engbird is free to download, with no in-app purchases.
Is Keya Authenticator free?
Keya Authenticator is free to download, with in-app purchases available.
Do Engbird or Keya Authenticator have ads?
Neither Engbird nor Keya Authenticator shows ads.
Which is updated more often, Engbird or Keya Authenticator?
Engbird ships an update every 6 weeks, and Keya Authenticator every 3 weeks. Most recently, Engbird was updated on October 20, 2026 and Keya Authenticator on October 8, 2026.

Other comparisons