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Comparison

Pulse Phone by SIPSTACK vs Second Phone Number 2nd Line

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

Head to head
Pulse Phone by SIPSTACK
Pulse Phone by SIPSTACK

Business VoIP & SMS

Free
💼 Business
No ratingsView app →
Second Phone Number 2nd Line
Second Phone Number 2nd Line

SMS Virtual, Verification Code

Free
💼 Business
★ 4.418 ratingsView app →
About

Pulse Phone by SIPSTACK

Features
Read full description

SIPSTACK Pulse is your all-in-one business communications app, bringing the full power of the SIPSTACK platform to your iPhone. WHAT'S INCLUDED: HD VoIP Calling (Nova PBX) Make and receive crystal-clear calls over your business phone system, integrated with iOS CallKit for system-grade incoming call UI, Dynamic Island, and one-tap return. Full Nova PBX integration with extension-to-extension calling, call transfer, hold, and voicemail. Business SMS (Flare) Send and receive SMS messages from your business number. Keep personal and business communications completely separate. Unified Communications Switch seamlessly between Nova (voice), Flare (messaging), and Aura (AI assistant) from a single app. One login. All products. Secure Authentication Enterprise-grade security with JWT-based authentication and iOS Keychain–backed token storage. Your communications stay private. Call History & Voicemail Full call history with missed call alerts. Visual voicemail with playback directly in the app. Contacts Integration Your business contacts at your fingertips with full phonebook integration. Dark Mode First Designed for dark mode from the ground up — follows your iOS appearance settings. Always Connected Stay reachable on your business number whether you're at your desk or on the go. SIPSTACK Pulse is built for businesses running on the SIPSTACK platform. A SIPSTACK account with an active Nova, Flare, or Aura subscription is required. Learn more at sipstack.com

About

Second Phone Number 2nd Line

Obtain a secondary phone number for private calls, texts, and SMS verification. Ideal for business, online sign-ups, and maintaining personal number privacy with instant code notifications.

Highlights
  • Get a second phone number
  • Daily check-in for credits
  • SMS verification
  • Privacy and security
  • Fast activation
  • Instant SMS code notifications
Features
Read full description

Second Phone Number – Private Calls & SMS Get a Second Phone Number for calls, texting, and SMS verification anytime, anywhere. Perfect for business, online registrations, social media, and secure communication. KEY FEATURES: - Get a Second Phone Number - Checkin Daily To Gain Credits - SMS Verification - Privacy & Security Protection - Fast Activation For Popular Services - Get SMS Code Notifications Instantly Stay connected while keeping your personal number private with a reliable Second Phone Number app. Privacy Policy: https://sites.google.com/soosky.co/2nd-phone-number-policy/ Terms of Use: https://sites.google.com/soosky.co/2nd-phone-number-terms/

Screenshots

Pulse Phone by SIPSTACK4 screens
Second Phone Number 2nd Line4 screens

Verdict

The call

The clearest difference is ads: Pulse Phone by SIPSTACK at none against Second Phone Number 2nd Line's shown. Pulse Phone by SIPSTACK also leads on update cadence (every 2 weeks vs every 3 weeks) and device support (3 vs 1). On price and in-app purchases 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.

UpkeepUpdate frequency

Pulse Phone by SIPSTACK ships an update every 2 weeks, Second Phone Number 2nd Line every 3 weeks. Both last shipped on October 31, 2026.

Scorecard4 real differences · 6 level
Pulse Phone by SIPSTACK versus Second Phone Number 2nd Line: the parameters behind the verdict, then further details
ParameterPulse Phone by SIPSTACKSecond Phone Number 2nd Line
PriceFreeFree
Rating—4.4 (18 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—18 — better
Update frequencyEvery 2 weeks — betterEvery 3 weeks
AdsNo — betterYes
In-app purchasesNoNo
Monetization—Ad-supported
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.1 — better17.0
Further details — not scored
Size45 MB46 MB
Age rating4+4+
DeveloperSIPSTACKMindspark Studio

In-app purchases

None

Pulse Phone by SIPSTACK

No in-app purchases

None

Second Phone Number 2nd Line

No in-app purchases

Questions

Is Pulse Phone by SIPSTACK free?
Pulse Phone by SIPSTACK is free to download, with no in-app purchases.
Is Second Phone Number 2nd Line free?
Second Phone Number 2nd Line is free to download, with no in-app purchases.
Do Pulse Phone by SIPSTACK or Second Phone Number 2nd Line have ads?
Second Phone Number 2nd Line shows ads; Pulse Phone by SIPSTACK does not.
Which is updated more often, Pulse Phone by SIPSTACK or Second Phone Number 2nd Line?
Pulse Phone by SIPSTACK ships an update every 2 weeks, and Second Phone Number 2nd Line every 3 weeks. Most recently, Pulse Phone by SIPSTACK was updated on October 31, 2026 and Second Phone Number 2nd Line on October 31, 2026.

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