Comparison

OneMessage vs 2nd Line

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

Head to head
About

OneMessage

Send secure, reliable text messages over satellite or cellular connections, saving bandwidth and money. This app ensures private, person-to-person communication, even at sea, with a familiar interface for easy conversation tracking.

Highlights
  • Secure and reliable text messaging
  • Works over satellite (Iridium, Globalstar, Inmarsat) and Wi-Fi/cellular
  • Saves bandwidth, time, and money
  • Person-to-person private messaging
  • Message queuing for cost-effective sending
  • Threaded conversations
Features
Read full description

Text Messaging – On Land or At Sea with OCENS OneMessage With OCENS OneMessage text messaging, you can easily maintain secure, reliable contact with your friends, family, or fleet while saving time, bandwidth, and money. OneMessage enables two-way, private and personal text messaging over your Wi-Fi connection through the Iridium GO! or other Iridium, Globalstar, Inmarsat satellite phones, or through a conventional cellular or Wi-Fi connection. OneMessage is person-to-person, not person-to-machine like other satellite messaging services. OneMessage ensures that texts reach only their intended recipient no matter how many devices are connected to the Wi-Fi, whether on land or at sea. Once you hit send, you can rest assured that your contacts will receive your text. Inbound messages are available for download when you connect to your sat phone, no matter where you are. Streamlined, Simple Onboard Communication Queue your messages using the OneMessage app, and then switch on your sat phone and send in seconds to save costs and minimize bandwidth usage. While you’re connected, OneMessage automatically receives any messages waiting for you on the network. Your messages appear threaded within OneMessage, just like you’d expect so that you can easily keep track of each conversation. Eliminate International Texting Fees for Good Iridium is treated as a foreign country by all cellular carriers. These carriers can charge US$15 per month or US$0.50 per message, and sometimes even apply overage rates when sending SMS messages to an Iridium phone. OneMessage users do NOT need to activate international texting service on their smartphone to send texts. With OneMessage, you get the maximum value from your satellite phone connection economically, while using an interface that feels intuitive and familiar to keep in touch no matter where you travel. Please review our Privacy Policy at http://www.ocens.com/Privacy-Policy.aspx and Terms of Use at http://downloads.ocens.com/terms-of-use.htm.

About

2nd Line

This app provides a private second phone number for calls and texts without needing an extra SIM card. It offers unlimited texting and calling, custom numbers for various uses, and cost-effective international communication. Protect your privacy and manage multiple lines easily on your iOS device.

Highlights
  • Multiple virtual phone lines
  • Customizable phone numbers
  • Privacy protection
  • International calling and texting
  • No SIM swapping
  • Automatic call recorder
  • Voicemail
Read full description

Looking for a private and convenient way to call and text without sharing your personal number? 2nd Line - Second Phone Number gives you a real secondary phone number for personal conversations, calling, and messaging directly from your iPhone. Stay connected with friends, family, and personal contacts while keeping your primary number private. No extra SIM card or additional device required. Whether you want a separate number for travel, online accounts, shopping signups, dating apps, classifieds, or everyday privacy, Second Phone Number makes communication simple and secure. With Second Phone Number you can: ◉ Send and receive SMS messages ◉ Make domestic and international calls ◉ Keep personal conversations private ◉ Use multiple phone numbers on one device ◉ Manage calls and messages easily ◉ Access voicemail, call forwarding, and more Why users love Second Phone Number: ▶ Multiple Phone Numbers Manage multiple virtual phone numbers directly from your iPhone without changing SIM cards or carrying extra devices. ▶ Privacy Protection Keep your personal number private while communicating with people online, during travel, or in everyday situations. ▶ Personal Communication Chat and stay connected with friends, family, and personal contacts using a separate number for everyday conversations. ▶ International Calling Make affordable international calls and send messages while staying connected worldwide. ▶ Easy Number Management Switch between numbers effortlessly and manage your communication in one convenient app. ▶ Flexible Usage Use your second number for: • Travel • Online signups • Shopping rewards programs • Dating apps • Classified listings • Personal privacy • Everyday communication Additional Features: ◈ Voicemail ◈ Call Forwarding ◈ Call Blocking ◈ Custom Ringtones ◈ Automatic Call Recording ◈ SMS & MMS Support Second Phone Number is designed for individual personal use and private communication. Spam, automated messaging, bulk messaging, and marketing-related usage are strictly prohibited. Download Second Phone Number today and enjoy private calling and texting with the convenience of multiple phone numbers on a single device. UNLIMITED ACCESS MEMBERSHIP SUBSCRIPTION • Payment will be charged to your iTunes Account at confirmation of purchase. • Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. • Your account will be charged for renewal within 24 hours prior to the end of the current period. • You can manage subscriptions and turn off auto-renewal in your Account Settings after purchase. • Any unused portion of a free trial period will be forfeited upon subscription purchase. ※ Privacy Policy: https://appyogi.com/legal/privacy/ ※ Terms of Use: https://appyogi.com/legal/terms/

Screenshots

OneMessage4 screens
2nd Line4 screens

Verdict

The call

The clearest difference is rating: OneMessage at 5.0 against 2nd Line's 4.5. OneMessage also leads on in-app purchases (none vs 10) and ads (none vs shown). 2nd Line's advantage is update cadence (every 2 weeks vs every 4 months) and ratings volume (1.5K vs 2). On price 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. 2nd Line sells 10 in-app purchases, starting at $7.99 per 7 days. OneMessage asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

OneMessage holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: 2nd Line has 1.5K ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

OneMessage ships an update every 4 months, 2nd Line every 2 weeks. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

Scorecard7 real differences · 3 level
OneMessage versus 2nd Line: the parameters behind the verdict, then further details
ParameterOneMessage2nd Line
PriceFreeFree
Rating5.0 (2 ratings) — better4.5 (1.5K ratings)
Positive reviews—74.5% of reviews
Number of ratings21.5K — better
Update frequencyEvery 4 monthsEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size26 MB196 MB
Age rating4+4+
DeveloperOCENS, Inc.AppYogi Software Pvt. Ltd.

Customer experience

OneMessage

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

2nd Line

All ratings1,541 ratings
Positive86.1%
Neutral3.6%
Negative10.3%
Written reviews196 reviews
Positive74.5%
Neutral5.1%
Negative20.4%

Bugs and requests

OneMessage

Not enough reviews yet to summarise bugs or requests.

2nd Line

Reported bugs

2 issues
  • Automatic charges without free trial
  • Inability to send texts

Requested features

2 requests
  • Free trial option
  • Refund/cancellation process improvement

In-app purchases

None

OneMessage

No in-app purchases

10 purchases

2nd Line

Subscriptions6
  • Second phone number$7.997 Days
  • 2nd Phone number$14.997 Days
  • Call and text me$14.991 Month
Show 3 more
  • Call and message3 Days trial$14.991 Month
  • Second Phone Line$14.991 Month
  • Second Number3 Days trial$99.991 Year
One-time4
  • 300 Credits$2.99
  • Get 500 Credits$4.99
  • Get new 2nd number$9.99
Show 1 more
  • 1200 Credits$9.99

Questions

Is OneMessage free?
OneMessage is free to download, with no in-app purchases.
Is 2nd Line free?
2nd Line is free to download, with in-app purchases available.
Which has better reviews, OneMessage or 2nd Line?
OneMessage is rated higher. OneMessage averages 5.0 out of 5 from 2 ratings, while 2nd Line averages 4.5 from 1.5K ratings.
Do OneMessage or 2nd Line have ads?
2nd Line shows ads; OneMessage does not.
Which is updated more often, OneMessage or 2nd Line?
OneMessage ships an update every 4 months, and 2nd Line every 2 weeks. Most recently, OneMessage was updated on November 6, 2026 and 2nd Line on November 7, 2026.

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