Comparison

Second Phone Number Calling vs TechnerOne

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

Head to head
About

Second Phone Number Calling

This app provides a private, secondary phone number on your existing device, allowing for unlimited calls and texts without an extra SIM. Protect your primary number from spam and manage work-life balance effectively with flexible calling and messaging features.

Highlights
  • Get verified USA phone numbers
  • Unlimited local and international calls
  • Send SMS and view message history
  • Send FAX worldwide
  • Block undesirable phone numbers
  • Name Number feature for identification
Features
Read full description

Save up to 72% on outbound calls to USA and Canada phone numbers (landlines or mobiles).

 Our service works through WiFi or cellular data (not included).

 Receive calls from any country code (landlines or mobiles). Outbound calls are just for USA and Canada phone numbers (landlines, mobiles or toll-free). Keep your privacy uncompromised, protect your identity, and reduce the risk of spam or harassment on your primary line. Enhance your work-life, balance and organized without an extra SIM or device. Private, Practical, flexible, versatile. Our app is your best extra phone number in your pocket. Don’t buy additional SIM cards with exorbitant bills if you want an extra phone number. We provide an extra phone line through an additional phone number. Take your business phone line with you without an extra device nor extra SIM-card. Buy a verified USA phone number and call with the best rates in the market. Let our service maintain your business communications, and avoid changing the phone number in the future. Protect your personal number to keep in touch with your family and friends. • Send SMS (to USA numbers only) and FAX as easily as ever.

 • Receive SMS (from USA numbers only) • Light and dark mode included. • Keep in touch with customers using your same personal device. • We deliver your calls, texts, and faxes, with outstanding coverage and quality. No more landlines and desk phones. FEATURES: • Get verified extra phone numbers from USA.

 • Save up to 72% on outbound calls to USA and Canada phone numbers (Outbound calls are just for USA and Canada phone numbers: landlines, mobiles or toll-free).

 • Receive calls from any country code (landlines or mobiles). • Send SMS (USA numbers only) and view message history.

 • Receive SMS (from USA numbers only) • Send FAX worldwide. • Access your contacts list from your personal device and synchronize it with the app. • Block undesirable phone numbers. • Add an extra verified USA number with just a few taps and delete it if you don’t need it anymore. • Keep your purchased phone numbers as long as you want. No contracts needed. • Identify your numbers and find them easily using the Name Number feature. * +60 minutes daily for outbound calls to USA and Canada phone numbers only (some carriers and area codes may vary their rates). ** You can switch the phone number included in your subscription for a $5.99 one-time fee; the new phone number will be added to your current subscription. Terms of use: http://second-phone.com/terms Privacy Policy: http://second-phone.com/policy Download and Save!

About

TechnerOne

Features
Read full description

With Cloud PBX, every call gets answered. This service lets you manage and track company calls, customize call routing, set up call forwarding, and integrate your CRM with your phone system, among many other features. The mobile app serves as an easy-to-use alternative to the web interface, giving you access to key functions directly from your smartphone, anytime and anywhere. Monitor Calls and Access Recordings: Get an overview of calls your team has made, missed, or received today. Search call history and listen to recordings (with an option to speed up playback to save time). View and analyze detailed call stats on your mobile device. Manage Cloud PBX via the Mobile App: Adjust phone number settings. Configure call forwarding. Add or update users and departments. Simply log in to the app using your Cloud PBX credentials.

Screenshots

Second Phone Number Calling4 screens
TechnerOne4 screens

Verdict

The call

The clearest difference is in-app purchases: TechnerOne at none against Second Phone Number Calling's 10. 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. Second Phone Number Calling sells 10 in-app purchases, starting at $5.99 per 7 days. TechnerOne asks for nothing beyond the download.

UpkeepUpdate frequency

Second Phone Number Calling ships an update every 3 weeks, TechnerOne every 5 weeks. Both last shipped on October 25, 2026.

Scorecard1 real difference · 9 level
Second Phone Number Calling versus TechnerOne: the parameters behind the verdict, then further details
ParameterSecond Phone Number CallingTechnerOne
PriceFreeFree
Rating4.6 (647 ratings) — better—
Positive reviews94.0% of reviews—
Number of ratings647 — better—
Update frequencyEvery 3 weeks — betterEvery 5 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscription—
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.0 — better15.5
Further details — not scored
Size68 MB58 MB
Age rating4+4+
DeveloperSecond Phone Number & Texting LLCTechner UK

Bugs and requests

Second Phone Number Calling

Reported bugs

3 issues
  • Login and account management problems
  • Inconsistent call quality in low signal areas
  • Billing and subscription issues

Requested features

4 requests
  • Improved call blocking and spam filtering
  • Integration with popular messaging apps
  • Expanded number selection options
  • Enhanced voicemail and call forwarding features

TechnerOne

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Second Phone Number Calling

Subscriptions9
  • Pick your phone number$5.997 Days
  • 1 Phone Number$7.997 Days
  • 1 phone number3 Days trial$9.991 Month
Show 6 more
  • 1 phone number$9.991 Month
  • 1 phone number$14.991 Month
  • 3 phone numbers3 Days trial$27.991 Month
  • 3 phone numbers$27.991 Month
  • 3 phone numbers$74.991 Year
  • 3 phone numbers$119.991 Year
One-time1
  • New Phone Number$5.99
None

TechnerOne

No in-app purchases

Questions

Is Second Phone Number Calling free?
Second Phone Number Calling is free to download, with in-app purchases available.
Is TechnerOne free?
TechnerOne is free to download, with no in-app purchases.
Do Second Phone Number Calling or TechnerOne have ads?
Neither Second Phone Number Calling nor TechnerOne shows ads.
Which is updated more often, Second Phone Number Calling or TechnerOne?
Second Phone Number Calling ships an update every 3 weeks, and TechnerOne every 5 weeks. Most recently, Second Phone Number Calling was updated on October 25, 2026 and TechnerOne on October 25, 2026.

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