Comparison

Clam Mobile vs Virtual numbers / Second line

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

Head to head
About

Clam Mobile

Features
Read full description

The Clam Companion mobile application provides the ability to collect data from the monitoring hardware wirelessly and deliver it to the Clam web service. The Companion app also supports altering instrument configuration; live viewing of realtime sensor readings and recalibration.

About

Virtual numbers / Second line

Obtain international mobile numbers for various countries directly on your device without changing SIM cards. Make and receive calls and texts globally at competitive rates, ideal for separating personal and professional life or online registrations.

Highlights
  • International mobile numbers
  • Global calls and SMS
  • Online registration
  • No SIM swaps
  • No roaming fees
  • Wi-Fi or data connection
Read full description

Zeyi: Your All-in-One Global Mobile Number Solution. Unlock seamless worldwide communication with Zeyi, the revolutionary app that lets you get international mobile numbers (France, UK, China, USA, and more) directly on your iPhone, without ever needing to change your physical SIM card. Why Zeyi is Essential for You: Second Phone Number: Instantly add dedicated numbers for various countries, perfect for separating work from personal life, managing international contacts, or simply maintaining privacy. Global Calls & SMS: Make and receive calls and send/receive SMS messages worldwide at highly competitive rates. Connect with anyone, anywhere, just as if you had a local number. Social Media & Online Registrations: Use your new international numbers to easily sign up for social media platforms, messaging apps, and other online services that require a local phone number verification. No SIM Swaps, No Roaming Fees: Travel and communicate freely without the hassle of buying local SIMs or incurring expensive international roaming charges. Your Zeyi numbers work over Wi-Fi or your existing data connection. Crystal Clear Quality: Enjoy reliable and high-quality voice calls, ensuring you stay connected without interruptions. Zeyi is designed for travelers, international business professionals, expats, students, and anyone needing a flexible, cost-effective, and powerful global communication tool. Download Zeyi now and simplify your international mobile life! www.zeyi.co WhatsApp : +33757750002 Email : zeyi@support.uk Facebook : Zeyi

Screenshots

Clam Mobile4 screens
Virtual numbers / Second line4 screens

Verdict

The call

The clearest difference is in-app purchases: Clam Mobile at none against Virtual numbers / Second line's 10. Clam Mobile also leads on iOS requirement (11.0 vs 14.0). Virtual numbers / Second line's advantage is update cadence (every 3 weeks vs every 8 months). 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. Virtual numbers / Second line sells 10 one-off in-app purchases. Clam Mobile asks for nothing beyond the download.

UpkeepUpdate frequency

Clam Mobile ships an update every 8 months, Virtual numbers / Second line every 3 weeks. The most recent releases landed on October 4, 2026 and October 7, 2026 respectively.

Scorecard3 real differences · 7 level
Clam Mobile versus Virtual numbers / Second line: the parameters behind the verdict, then further details
ParameterClam MobileVirtual numbers / Second line
PriceFreeFree
Rating—3.4 (17 ratings) — better
Positive reviews—41.2% of reviews
Number of ratings—17 — better
Update frequencyEvery 8 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS11.0 — better14.0
Further details — not scored
Size23 MB34 MB
Age rating4+4+
DeveloperIntelisys LimitedFRANCE TELEPHONY

In-app purchases

None

Clam Mobile

No in-app purchases

10 purchases

Virtual numbers / Second line

One-time10
  • Top up level 1 (Europe)$1.99
  • Top up level 1 (Worldwide)$1.99
  • Top up level 2 (Europe)$3.99
Show 7 more
  • Subscription 1 month$3.99
  • Top up level 2 (Worldwide)$3.99
  • Subscription 3 Months$6.99
  • Top up level 3 (Europe)$7.99
  • Top up level 3 (Worldwide)$7.99
  • Subscription 12 Months$13.99
  • Credit 20.00$16.99

Questions

Is Clam Mobile free?
Clam Mobile is free to download, with no in-app purchases.
Is Virtual numbers / Second line free?
Virtual numbers / Second line is free to download, with in-app purchases available.
Do Clam Mobile or Virtual numbers / Second line have ads?
Neither Clam Mobile nor Virtual numbers / Second line shows ads.
Which is updated more often, Clam Mobile or Virtual numbers / Second line?
Clam Mobile ships an update every 8 months, and Virtual numbers / Second line every 3 weeks. Most recently, Clam Mobile was updated on October 4, 2026 and Virtual numbers / Second line on October 7, 2026.

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