# Deep Whois vs Mobile OTP Authenticator

The clearest difference is rating: Deep Whois at 4.5 against Mobile OTP Authenticator's 3.5. Deep Whois also leads on ratings volume (172 vs 2) and iOS requirement (13.4 vs 15.6). Mobile OTP Authenticator's advantage is in-app purchases (none vs 4) and ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. Deep Whois sells 4 in-app purchases, starting at $1.99 per 7 days. Mobile OTP Authenticator asks for nothing beyond the download.

Deep Whois holds the better App Store score, 4.5 against 3.5. That said, the two scores are not equally well evidenced: Deep Whois has 172 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 85% of Deep Whois's written reviews are positive against 100% of Mobile OTP Authenticator's, so the app with the better star average is not the one people write more warmly about.

Deep Whois ships an update every 4 months, Mobile OTP Authenticator every 8 months. Both last shipped on September 28, 2026.

## The numbers

| Metric | Deep Whois | Mobile OTP Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (172 ratings)](https://appshunter.io/ios/app/deep-whois/id328895000/reviews)** | [3.5 (2 ratings)](https://appshunter.io/ios/app/mobile-otp-authenticator/id1451459963/reviews) |
| Number of ratings | **172** | 2 |
| Positive reviews | 85.4% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 4 months** | Every 8 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 46 MB | 2 MB |
| Requires iOS | **13.4** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pavel Ahafonau](https://appshunter.io/developer/319585607) | [Albert Parti](https://appshunter.io/developer/534966701) |

## What reviewers say

### Deep Whois

[App page](https://appshunter.io/ios/app/deep-whois/id328895000)

This app provides comprehensive WHOIS lookups for domains, IP addresses, and network ranges. It offers advanced features like historical data, change tracking, and notifications for domain expirations. Explore all domain zones and IP versions with seamless RDAP support.

**Highlights:** WHOIS lookup for domains, IPs, ASNs, and ENS, WHOIS history and change tracking, Domain expiration tracking with notifications, Supports all domain zones and IP versions (IPv4/IPv6), Seamless RDAP support, Automatic WHOIS server selection

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Deep Whois Pro (1 Week) | $1.99 | per 7 days |
| Deep Whois Pro (1 Month) | $3.99 | per month |
| Deep Whois Pro (1 Year) | $29.99 | per year |
| Deep Whois Plus (Lifetime) | $0.99 | one-time |

**What reviewers like**

- 🚀 Fast and efficient
- 👍 Simple and intuitive interface
- 🔒 Provides detailed domain/IP information
- 💡 Useful for troubleshooting network issues
- 👍 Convenient for on-the-go use

**What reviewers complain about**

- 🐛 Occasional bugs and crashes
- 🔍 Limited functionality compared to desktop tools
- 💰 Paid version required for full features
- 🔑 Privacy concerns with some user data

**Reported bugs**

- Incorrect location/ISP information for some IP addresses
- Compatibility issues with newer iOS versions
- Unreliable performance on older devices

**Requested features**

- Expand search capabilities (e.g., reverse IP lookup, domain history)
- Add support for more domain registrars and TLDs
- Implement dark mode and customization options
- Improve integration with other network/security tools


### Mobile OTP Authenticator

[App page](https://appshunter.io/ios/app/mobile-otp-authenticator/id1451459963)

Securely manage your two-factor authentication codes. Easily add accounts by scanning QR codes or manual entry. Protect your online accounts with industry-standard HOTP and TOTP algorithms.

**Highlights:** QR code scanning for account setup, Manual account entry, Secure data storage in iOS Keychain, Supports HOTP and TOTP algorithms, Works with popular services like Google, Facebook, Amazon

**In-app purchases:** none


## Frequently asked questions

### Is Deep Whois free?

Deep Whois is free to download, with in-app purchases available.

### Is Mobile OTP Authenticator free?

Mobile OTP Authenticator is free to download, with no in-app purchases.

### Which has better reviews, Deep Whois or Mobile OTP Authenticator?

Deep Whois is rated higher. Deep Whois averages 4.5 out of 5 from 172 ratings, while Mobile OTP Authenticator averages 3.5 from 2 ratings.

### Do Deep Whois or Mobile OTP Authenticator have ads?

Deep Whois shows ads; Mobile OTP Authenticator does not.

### Which is updated more often, Deep Whois or Mobile OTP Authenticator?

Deep Whois ships an update every 4 months, and Mobile OTP Authenticator every 8 months. Most recently, Deep Whois was updated on September 28, 2026 and Mobile OTP Authenticator on September 28, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*