Comparison

Termii Authenticator vs 2nd Line

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

Head to head
About

Termii Authenticator

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
Read full description

Say goodbye to the frustration of missing OTPs! Termii Go guarantees you receive OTPs from your favorite businesses, hassle-free. Enjoy discounts and important updates from your preferred businesses. You can also add an extra layer of security to apps dear to you using our FREE 2FA feature in-app!

About

2nd Line

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
Read full description

- Get Your Second Phone Number - International Calling & Texting with Your 2nd Line - Receive SMS Online for Social Platforms 2nd Line Super gives you a real second phone number in seconds. Make private calls, send SMS, and receive verification codes without needing another SIM card. Whether you need a 2nd phone number for texting, calling, SMS verification, or a private number for online registrations, 2nd Line+ gives you full control over your communication. With our virtual phone number app, you can easily create a 2nd line for texting and calling, protect your personal number, and stay connected worldwide. GET A SECOND PHONE NUMBER INSTANTLY - Get a second phone number in seconds - Choose a US phone number, UK number, Canada number, and more - Use your 2nd line for calling, texting, and SMS - No physical SIM card required - Manage multiple phone numbers in one app 2nd Line Super makes it easy to create a new phone number for personal, business, or online use while keeping your real phone number private. INTERNATIONAL CALLING & TEXTING - Unlimited texting and calling with your 2nd phone number - Affordable international calling - Reliable voice calls and SMS messaging - Use WiFi calling and VoIP - Send and receive SMS from your virtual number Your second phone number works like a real mobile number, allowing you to call and text globally without extra devices. RECEIVE SMS ONLINE & VERIFICATION CODES - Use your number for messaging apps, Telegram, Tinder, and more - Get fast OTP and activation codes - Protect your personal number from spam - Register for apps without exposing your real phone - Use a virtual number for online accounts PRIVATE & BURNER PHONE NUMBER - Create a burner phone number for temporary use - Use a disposable phone number for online services - Keep your personal number private - Avoid spam calls and messages - Delete numbers anytime when no longer needed Whether you need an anonymous phone number, temporary number, or private number, 2nd Line+ gives you complete control. GLOBAL NUMBERS FOR SMS, OTP & CALLING - Most Popular: United States, United Kingdom, Canada - Europe: Germany, France, Spain, Italy, Netherlands, Poland, Sweden, Romania, Switzerland, Turkey, and more - Asia: Japan, South Korea, Singapore, Malaysia, Indonesia, India, Hong Kong, Taiwan, Philippines, Vietnam, and more - Latin America: Brazil, Mexico, Colombia, Chile, Peru, and more Get a second phone number and receive SMS verification codes from top countries worldwide. WHY 2ND LINE SUPER? - Instant second phone number activation - Reliable SMS delivery - High-quality voice calls - Flexible plans for short-term and long-term use - Secure and private communication Use 2nd Line Super as your second phone number, texting app, calling app, and SMS verification tool, all in one place. About Subscriptions and Terms of Use: - For Unlimited Features of 2nd Line Super, premium subscriptions are needed. - Payment will be made from your iTunes account after you confirm the purchase. - Subscriptions will auto-renew at the end of each term if it is not canceled 24 hours before the end of the purchasing term. - The user can manage subscriptions. Auto-renew can be turned off from iTunes account settings. - You can cancel your subscriptions by entering: http://support.apple.com/en-us/HT202039 - Privacy Policy: https://secondlineplus.com/privacy-policy - Terms of Use: https://secondlineplus.com/terms-of-use - Support mail: help@secondlineplus.com 2nd Line Super is not affiliated with or endorsed by WhatsApp or Meta. WhatsApp is a trademark of WhatsApp LLC.

Screenshots

Termii Authenticator4 screens
2nd Line4 screens

Verdict

The call

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.

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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

Scorecard5 real differences · 5 level
Termii Authenticator versus 2nd Line: the parameters behind the verdict, then further details
ParameterTermii Authenticator2nd Line
PriceFreeFree
Rating5.0 (6 ratings) — better4.4 (1.3K ratings)
Positive reviews—70.6% of reviews
Number of ratings61.3K — better
Update frequencyEvery 10 days — betterFortnightly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.1
Further details — not scored
Size39 MB102 MB
Age rating4+4+
DeveloperTERMII WEBTECH LIMITEDESIM TRAVEL DATA INC

Customer experience

Termii Authenticator

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

2nd Line

All ratings1,273 ratings
Positive84.1%
Neutral4.2%
Negative11.7%
Written reviews772 reviews
Positive70.6%
Neutral3.9%
Negative25.5%

Bugs and requests

Termii Authenticator

Not enough reviews yet to summarise bugs or requests.

2nd Line

Reported bugs

3 issues
  • Verification codes not working
  • Frequent errors or crashes
  • Limitations when used outside supported regions

Requested features

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

In-app purchases

None

Termii Authenticator

No in-app purchases

10 purchases

2nd Line

Subscriptions9
  • Pro Number Weekly Subscription$6.997 Days
  • First Number Unlimited Weekly$9.997 Days
  • Second Number Pro Weekly$9.997 Days
Show 6 more
  • Weekly Pro 2nd Line+ Number$9.997 Days
  • Monthly Pro 2nd Line+ Number$12.991 Month
  • Verification Number Monthly$14.991 Month
  • Monthly Verification Number$16.991 Month
  • Verification Number Yearly$39.991 Year
  • Yearly Pro 2nd Line+ Number$39.991 Year
One-time1
  • One-Time Verification Number$12.99

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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