Comparison

Second Phone Number, 2nd Line vs Fullbox.io

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, 2nd Line

Obtain a secondary phone number for calls and texts without needing an extra SIM card. Use it for personal or professional purposes, including online marketplaces, dating, and business, while keeping your primary number private. Make affordable international calls and send SMS/MMS with this virtual line.

Highlights
  • Obtain a secondary phone number
  • Make calls and send texts
  • No additional SIM card needed
  • Maintain privacy
  • Affordable international calls
  • Send SMS/MMS
Features
Read full description

Get a virtual US or Canadian phone number in minutes! No extra SIM card or second phone needed. Choose a California, Texas, Florida, New York, Illinois, or another available area code. Call and text from your virtual number over Wi-Fi or mobile data. Call mobile and landline numbers in the US, Canada, and 200+ countries worldwide. Send and receive SMS, and share photos and image through MMS. A SEPARATE NUMBER FOR EVERYDAY COMMUNICATION - Keep your personal and business communication organized with a separate US or Canadian phone number. Perfect for: - Work and business communication; - Customers and clients; - Travel and international communication; - Friends and family; - Personal and business calls and messages. FEATURES - A US or Canadian virtual phone number; - A choice of available local area codes; - Wi-Fi calling; - Calls to mobile and landline numbers; - International calls to supported destinations; - SMS and MMS in the US and Canada; - Photo sharing through MMS; - Contact sync. An active subscription is required to get and use a virtual phone number. Calling and messaging availability may vary by destination and carrier. - Terms of Use: https://sphone.telecom.municorn.com/privacy?app=second-phone - Privacy Policy: https://sphone.telecom.municorn.com/terms?app=second-phone - CCPA: https://telecom.municorn.com/ccpa?app=second-phone - Privacy Supplement: https://telecom.municorn.com/privacy-supplement?app=second-phone - Messaging Policy: https://sphone.telecom.municorn.com/messaging-policy?app=second-phone

About

Fullbox.io

Features
Read full description

FullBox is the firefighter’s personal PPE locker — always up to date, always ready for review. Forget tracking down your gear records in binders, emails, or spreadsheets. FullBox gives every firefighter a simple digital locker: see what you’ve been issued, check inspection status, submit requests, and get notified when something needs your attention — all from your phone. Your Digital Locker Everything issued to you — Structural PPE, Wildland PPE, and SCBA — is organized in one place. Tap any item to see its full history: last inspection date and type, maintenance records, and current status. Inactive or retired gear is only a tap away, never lost. Inspections on the Go Perform weekly, monthly, annual, and post-repair inspections directly in the app for all equipment. Bulk inspections let you process multiple items in a single session. Every completed inspection is logged instantly and made available to your PPE manager without extra steps. 4 Clicks to Request Need new gear, a repair, or advanced cleaning? Submit the request in seconds and track its status. No paper forms, no emails, no follow-up guesswork. Stay Informed Receive push notifications for inspection due dates, overdue reviews, request status changes, and gear ready for pickup. Your PPE manager sets the schedule — FullBox keeps you informed so nothing slips through. Built with Fire Departments, for Fire Departments FullBox supports NFPA-informed PPE tracking and Cal/OSHA-aware recordkeeping. It works alongside your department’s existing policies and review schedules — not against them. Your records stay current, searchable, and ready for review at any time. The firefighter digital locker is just one piece — but it’s where accurate records start. FullBox is part of a complete department PPE system used by PPE managers, quartermasters, logistics teams, and command staff. Requires an active FullBox department account. Contact your PPE manager or visit fullbox.io to get started.

Screenshots

Second Phone Number, 2nd Line4 screens
Fullbox.io4 screens

Verdict

The call

The clearest difference is in-app purchases: Fullbox.io at none against Second Phone Number, 2nd Line's 20. Fullbox.io also leads on iOS requirement (13.0 vs 18.0). Second Phone Number, 2nd Line's advantage is update cadence (fortnightly vs every 5 weeks) and chart position (#141 vs unranked). 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, 2nd Line sells 19 in-app purchases, starting at $4.99 per 7 days. Fullbox.io asks for nothing beyond the download.

UpkeepUpdate frequency

Second Phone Number, 2nd Line ships an update fortnightly, Fullbox.io every 5 weeks. The most recent releases landed on October 16, 2026 and September 28, 2026 respectively.

Scorecard4 real differences · 7 level
Second Phone Number, 2nd Line versus Fullbox.io: the parameters behind the verdict, then further details
ParameterSecond Phone Number, 2nd LineFullbox.io
PriceFreeFree
Rating4.3 (889 ratings) — better—
Positive reviews63.9% of reviews—
Number of ratings889 — better—
Update frequencyFortnightly — betterEvery 5 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
Best chart rank#141 — better—
DevicesiPhoneiPhone, iPod — better
Requires iOS18.013.0 — better
Further details — not scored
Size118 MB46 MB
Age rating4+4+
DeveloperMunicorn LimitedEirene AI LLC

Bugs and requests

Second Phone Number, 2nd Line

Reported bugs

3 issues
  • Inability to send/receive messages or make calls
  • Crashes when trying to link contacts
  • Verification codes not being delivered

Requested features

4 requests
  • Ability to change phone numbers more frequently
  • Support for more social media and messaging apps
  • Option to delete text message history
  • Local phone number availability for international users

Fullbox.io

Not enough reviews yet to summarise bugs or requests.

In-app purchases

19 purchases

Second Phone Number, 2nd Line

Subscriptions15
  • Second Phone Premium (week)$4.997 Days
  • Save your number$4.997 Days
  • Second Phone Premium (monthly)$8.991 Month
Show 12 more
  • Second Phone Premium (week)7 Days trial$9.997 Days
  • Second Phone Premium (week)2 variants$9.997 Days
  • Second Phone Premium (week)$14.997 Days
  • Second Phone Number: Call Text$14.997 Days
  • Second Phone Save Number 1yr$23.991 Year
  • Second Phone Premium (monthly)$24.991 Month
  • Monthly Trial3 Days trial$29.991 Month
  • Second Phone Premium (month)$29.991 Month
  • Second Phone Premium (quarter)$49.993 Months
  • Second Phone Premium (yearly)$49.991 Year
  • Second Phone Premium (yearly)3 Days trial$95.991 Year
  • Yearly Plan 2026$95.991 Year
One-time4
  • Change number$4.99
  • Change Number 2+$7.99
  • Change Number 3$14.99
Show 1 more
  • International Calls&SMS$19.99
None

Fullbox.io

No in-app purchases

Questions

Is Second Phone Number, 2nd Line free?
Second Phone Number, 2nd Line is free to download, with in-app purchases available.
Is Fullbox.io free?
Fullbox.io is free to download, with no in-app purchases.
Do Second Phone Number, 2nd Line or Fullbox.io have ads?
Neither Second Phone Number, 2nd Line nor Fullbox.io shows ads.
Which is updated more often, Second Phone Number, 2nd Line or Fullbox.io?
Second Phone Number, 2nd Line ships an update fortnightly, and Fullbox.io every 5 weeks. Most recently, Second Phone Number, 2nd Line was updated on October 16, 2026 and Fullbox.io on September 28, 2026.

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