Comparison

U Call Pay vs Second Phone Number

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

Head to head
About

U Call Pay

Manage your phone number privately and make/receive calls without revealing your primary number. This app also offers a secure and user-friendly way to top up your prepaid mobile service.

Highlights
  • Private phone number management
  • Make and receive calls privately
  • Secure prepaid mobile top-up
  • User-friendly interface
  • Seamless navigation
Features
Read full description

UCall Mobile offers a simple and secure solution for managing your phone number, making it easy to make and receive calls while keeping your primary number private. With UCall, you have a reliable, user-friendly app that lets you conveniently top up your prepaid phone service. UCall prioritizes security and smooth navigation, ensuring a seamless experience for managing and recharging your mobile needs.

About

Second Phone Number

Features
Read full description

You can have up to 4 real additional phone numbers on your mobile. For both incoming and outgoing Calls & SMS. Choose from UK, US, Canada, Poland & France virtual numbers. Make high-quality international calls to both mobiles and landlines for next to nothing. We offer low cost calling rates for calls or text SMS. 2nd SIM allows you to choose your connection type and set up your call via either local access, mobile data or WIFI. This means you never have to worry about bad reception or your call dropping. A second phone number for freelancer, Dating, Business, Online, Gumtree, & other use Free text chat between Apple phones worldwide while using WIFI or data, share pictures. No matter where you or your contacts live! You’ll get these multiple numbers without any additional or roaming charges. ======================================================================== KEY FEATURES • Get a 2nd number without changing your SIM card, device, or mobile network provider • Low-cost International Calls & SMS • Free Calls & Texts • Use multiple international virtual numbers at a time • Receive texts and calls to your new number • Send SMS and make calls from your dedicated number • Easy to make and switch between virtual number profiles when calling • Dedicated voicemail for each separate mobile number • Complete control of your mobile identity • In-app purchases and secret messaging feature available • 2nd SIM is free to download Now it’s easy for you to have multiple numbers with '2nd SIM' app. You can keep your primary contact private and use these low costs, roaming free virtual numbers for dating or selling on eBay or any kind of business purpose where you want to hide your own number. With “2nd SIM”, you can call or text chat with other 2nd SIM users and low-cost text SMS or calls to anyone worldwide. Take advantage of in-app purchases and buy multiple virtual numbers (up to 4). In short, 2nd SIM app can deliver: A disposable number A temporary/permanent number A second phone number for travel A second mobile phone number for business use Disposable phone numbers for online ad listings Make low cost, roaming free calls Call landlines and mobiles in the United States, the United Kingdom, Canada, France, Nigeria, the United Arab Emirates, Saudi Arabia, Egypt, Oman, India, Philippines, Australia, New Zealand, and 200 more countries and territories. “2nd SIM - is a must-have app on your Apple device if you want to make free & cheap international calls. 2nd SIM App gives a perfect international roaming free calling and SMS experience. Have fun! Please leave us a review and rating to let us know what you think about 2nd SIM - Second Phone Number. We’ll use your feedback to make your experience better next time. Thanks!

Screenshots

U Call Pay4 screens
Second Phone Number4 screens

Verdict

The call

The clearest difference is in-app purchases: U Call Pay at none against Second Phone Number's 10. Second Phone Number's advantage is update cadence (weekly vs every 3 weeks) and iOS requirement (13.4 vs 15.6). On price, 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 sells 10 one-off in-app purchases. U Call Pay asks for nothing beyond the download.

UpkeepUpdate frequency

U Call Pay ships an update every 3 weeks, Second Phone Number weekly. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
U Call Pay versus Second Phone Number: the parameters behind the verdict, then further details
ParameterU Call PaySecond Phone Number
PriceFreeFree
Rating4.8 (1K ratings) — better—
Positive reviews97.9% of reviews—
Number of ratings1K — better—
Update frequencyEvery 3 weeksWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.613.4 — better
Further details — not scored
Size60 MB28 MB
Age rating4+4+
Developer3 Billionaires Corp2ND SIM Limited

In-app purchases

None

U Call Pay

No in-app purchases

10 purchases

Second Phone Number

One-time10
  • €1.69$1.99
  • €1.99$1.99
  • $1.49$1.99
Show 7 more
  • €2.49$2.99
  • €4.49$4.99
  • $4.99$4.99
  • Virtual Number$4.99
  • $5.00$5.00
  • €7.49$7.99
  • €10.49$9.99

Questions

Is U Call Pay free?
U Call Pay is free to download, with no in-app purchases.
Is Second Phone Number free?
Second Phone Number is free to download, with in-app purchases available.
Do U Call Pay or Second Phone Number have ads?
Neither U Call Pay nor Second Phone Number shows ads.
Which is updated more often, U Call Pay or Second Phone Number?
U Call Pay ships an update every 3 weeks, and Second Phone Number weekly. Most recently, U Call Pay was updated on November 7, 2026 and Second Phone Number on October 30, 2026.

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