Comparison

Yello Pro vs Otpkey Authenticator

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

Head to head
About

Yello Pro

This app provides recruiters and professionals with tools to manage their agenda, collect candidate data, conduct evaluations, and schedule interviews. It's designed for on-the-go use, allowing for efficient management of recruitment activities from a mobile device.

Highlights
  • Agenda management
  • Candidate data collection
  • Evaluation completion
  • On-site interview scheduling
  • External communication tools
Features
Read full description

Yello Pro offers a one-size-fits-all solution for recruiters and professionals on the go. Suitable for events large, small and everywhere in between, Yello Pro provides users the tools to manage their agenda, collect candidate data, complete evaluations, schedule on-site interviews and send external communications — all from the palm of their hand! This app is intended for use by existing Yello clients. By downloading this application, you acknowledge that you have reviewed and hereby agree to the terms of RECSOLU Inc., DBA Yello's Privacy Policy, located at: https://yello.co/privacy-policy/

About

Otpkey Authenticator

Enhance your online security with multi-factor authentication. This app generates one-time passwords for various services, even offline, and supports standard TOTP/HOTP protocols. It offers features like QR code scanning, auto-hiding codes, and biometric authentication.

Highlights
  • Multi-factor authentication
  • Offline OTP generation
  • QR code scanning and export
  • Biometric authentication support
  • Clipboard code copying
  • Widget and Watch App support
Features
Read full description

Otpkey Authenticator generates one-time passwords for two-factor authentication on iPhone, iPad, Mac and Apple Watch, and keeps them in sync through iCloud Keychain. It works completely offline. No account, no server: your secrets stay in the system Keychain on your devices, protected by your passcode, Face ID or Touch ID. Otpkey Authenticator works with every service that supports standard TOTP or HOTP codes, including Google, Microsoft, Amazon, GitHub, Facebook, X, Dropbox, Discord, PayPal, AWS, Synology and many more. Switching from Google Authenticator? Scan its "Export accounts" QR code and all of your accounts are imported at once. Features ======= - Available for iPhone, iPad, Mac and Apple Watch, synced through iCloud Keychain - Folders and search to organize many accounts - Scan QR codes to add accounts - Import all accounts from a Google Authenticator export QR code - Export any account as a QR code - Encrypted, password-protected backup and restore (PEM file format) - Face ID / Touch ID lock - Hide codes on screen, copy with one tap - Custom account icons - iOS: Home Screen widgets (small, medium and large) - iOS: Apple Watch app with complication - macOS: Lives in the menu bar, always one click away - macOS: Scan QR codes straight from the screen - macOS: Launch at login, auto hide - macOS: Drag and drop Specifications =========== - Type: Time-based (TOTP), Counter-based (HOTP) - Algorithm: SHA-1, SHA-256, SHA-512 - Digits: 6, 8, 10 - Period: 30, 60 seconds Standards ======= TOTP - Time-based One-Time Password Algorithm (RFC 6238) HOTP - HMAC-Based One-Time Password Algorithm (RFC 4226)

Screenshots

Yello Pro4 screens
Otpkey Authenticator4 screens

Verdict

The call

The clearest difference is rating: Yello Pro at 3.6 against Otpkey Authenticator's 1.0. Yello Pro also leads on review sentiment (80% vs 50%) and ratings volume (39 vs 2). Otpkey Authenticator's advantage is device support (5 vs 3) and iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Yello Pro holds the better App Store score, 3.6 against 1.0. That said, the two scores are not equally well evidenced: Yello Pro has 39 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 80% of Yello Pro's written reviews are positive against 50% of Otpkey Authenticator's.

UpkeepUpdate frequency

Yello Pro ships an update every 3 weeks, Otpkey Authenticator every 2 months. The most recent releases landed on October 1, 2026 and October 2, 2026 respectively.

Scorecard6 real differences · 4 level
Yello Pro versus Otpkey Authenticator: the parameters behind the verdict, then further details
ParameterYello ProOtpkey Authenticator
PriceFreeFree
Rating3.6 (39 ratings) — better1.0 (2 ratings)
Positive reviews80.0% of reviews — better50.0% of reviews
Number of ratings39 — better2
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac, Apple Watch — better
Requires iOS15.613.0 — better
Further details — not scored
Size34 MB22 MB
Age rating4+4+
DeveloperRECSOLU, INCCertchip Corp

Customer experience

Yello Pro

All ratings39 ratings
Positive64.1%
Neutral2.6%
Negative33.3%
Written reviews10 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

Otpkey Authenticator

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

Yello Pro

No in-app purchases

None

Otpkey Authenticator

No in-app purchases

Questions

Is Yello Pro free?
Yello Pro is free to download, with no in-app purchases.
Is Otpkey Authenticator free?
Otpkey Authenticator is free to download, with no in-app purchases.
Which has better reviews, Yello Pro or Otpkey Authenticator?
Yello Pro is rated higher. Yello Pro averages 3.6 out of 5 from 39 ratings, while Otpkey Authenticator averages 1.0 from 2 ratings.
Do Yello Pro or Otpkey Authenticator have ads?
Neither Yello Pro nor Otpkey Authenticator shows ads.
Which is updated more often, Yello Pro or Otpkey Authenticator?
Yello Pro ships an update every 3 weeks, and Otpkey Authenticator every 2 months. Most recently, Yello Pro was updated on October 1, 2026 and Otpkey Authenticator on October 2, 2026.

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