# Termii Authenticator vs 2nd Line

The clearest difference is rating: Termii Authenticator at 5.0 against 2nd Line's 4.4. Termii Authenticator also leads on in-app purchases (none vs 10) and iOS requirement (13.0 vs 15.1). 2nd Line's advantage is ratings volume (1.3K vs 6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 2nd Line sells 10 in-app purchases, starting at $6.99 per 7 days. Termii Authenticator asks for nothing beyond the download.

Termii Authenticator holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: 2nd Line has 1.3K ratings behind it against 6, so its average is the more settled of the two.

Termii Authenticator ships an update every 10 days, 2nd Line fortnightly. Both last shipped on November 12, 2026.

## The numbers

| Metric | Termii Authenticator | 2nd Line |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/termii-authenticator/id1623590055/reviews)** | [4.4 (1.3K ratings)](https://appshunter.io/ios/app/2nd-line-super-phone-number/id6471901549/reviews) |
| Number of ratings | 6 | **1.3K** |
| Positive reviews | — | 70.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Fortnightly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 39 MB | 102 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TERMII WEBTECH LIMITED](https://appshunter.io/developer/1623590057) | [ESIM TRAVEL DATA INC](https://appshunter.io/developer/1837157246) |

## What reviewers say

### Termii Authenticator

[App page](https://appshunter.io/ios/app/termii-authenticator/id1623590055)

Never miss one-time passwords (OTPs) from businesses with this app. It ensures you receive important updates and can even add two-factor authentication to your other apps for enhanced security.

**Highlights:** Guaranteed OTP delivery, Receive business updates, Free 2FA feature, Enhanced app security, Hassle-free OTP management

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

**In-app purchases:** none


### 2nd Line

[App page](https://appshunter.io/ios/app/2nd-line-super-phone-number/id6471901549)

Obtain a temporary or permanent virtual phone number for private calls, texts, and SMS verification. Protect your personal number from spam and online registrations with a secure, anonymous second line. Supports international calling and texting.

**Highlights:** Get a second phone number instantly, International calling and texting, Receive SMS verification codes, Protect personal number privacy, Create temporary burner numbers, Manage multiple numbers

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Number Weekly Subscription | $6.99 | per 7 days |
| First Number Unlimited Weekly | $9.99 | per 7 days |
| Second Number Pro Weekly | $9.99 | per 7 days |
| Weekly Pro 2nd Line+ Number | $9.99 | per 7 days |
| Monthly Pro 2nd Line+ Number | $12.99 | per month |
| Verification Number Monthly | $14.99 | per month |
| Monthly Verification Number | $16.99 | per month |
| Verification Number Yearly | $39.99 | per year |
| Yearly Pro 2nd Line+ Number | $39.99 | per year |
| One-Time Verification Number | $12.99 | one-time |

**What reviewers like**

- 💰 Affordable
- 🔒 Secure
- 📱 Convenient second number
- 🌍 Wide range of number options
- 🛠️ Useful features (voicemail, call forwarding, etc.)

**What reviewers complain about**

- 🔍 Limited number of available numbers
- 🔊 Occasional poor call quality
- 💸 Expensive premium features
- 🌐 Regional limitations (only available in US/Canada)
- 📢 Intrusive ads in free version

**Reported bugs**

- Verification codes not working
- Frequent errors or crashes
- Limitations when used outside supported regions

**Requested features**

- More number options and packages
- Improved call quality
- Expanded international availability
- Ad-free premium version


## Frequently asked questions

### Is Termii Authenticator free?

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

### Is 2nd Line free?

2nd Line is free to download, with in-app purchases available.

### Which has better reviews, Termii Authenticator or 2nd Line?

Termii Authenticator is rated higher. Termii Authenticator averages 5.0 out of 5 from 6 ratings, while 2nd Line averages 4.4 from 1.3K ratings.

### Do Termii Authenticator or 2nd Line have ads?

Neither Termii Authenticator nor 2nd Line shows ads.

### Which is updated more often, Termii Authenticator or 2nd Line?

Termii Authenticator ships an update every 10 days, and 2nd Line fortnightly. Most recently, Termii Authenticator was updated on November 12, 2026 and 2nd Line on November 12, 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.*