Comparison

Second Phone Number vs Otro

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

Get a dedicated second phone number for unlimited, high-quality calls without needing a new SIM card. Ideal for business, personal privacy, or managing multiple projects with crystal-clear VoIP technology.

Highlights
  • Real US/Canada numbers
  • Unlimited calling
  • International calling
  • HD-quality VoIP calls
  • Privacy protection
  • Call recording
  • Voicemail service
Features
Read full description

Keep your real number private. Record every call. Text safely. Secondly gives you a real US or Canada phone number — instantly. Make calls, send texts, and record conversations, all without touching your personal number. Perfect for business, dating apps, marketplace sales, or anyone who values their privacy. WHY SECONDLY? - Real US & Canada Numbers — Get a genuine local number in seconds. No SIM card, no extra phone. - Built-in Call Recording — Save every important conversation. Never lose a detail again. - Text Messaging — Send and receive texts from your second number. Keep your real number private. - HD Voice Quality — Crystal-clear VoIP calls that sound better than your regular line. - Unlimited Calls & Texts — Talk and text without limits across the US and Canada. - International Calling — Reach contacts abroad at affordable rates. - Total Privacy — Your real number stays hidden. Always. ADDITIONAL FEATURES - Voicemail service for missed calls - Anonymous calling option - Block unwanted callers and spam texts - Separate work and personal communication WHAT USERS SAY - "Best second number app I have used. The recording feature alone is worth it." - "Perfect for my Marketplace sales. Buyers can call or text — but never see my real number." - "Crystal clear calls and easy setup. Got my US number in 30 seconds." WHO IS IT FOR? - Business owners — Keep work calls and texts separate. Record client meetings. - Freelancers — Give clients a professional number for calls and texting. Document every call. - Online sellers — Protect your real number on Facebook Marketplace, Craigslist, OfferUp. Reply by text safely. - Daters — Stay safe on Tinder, Bumble, Hinge. Text or call without sharing your real number. - Travellers — Affordable international calls and texting from one app. - Privacy-first users — Use for banks, deliveries, sign-ups, verification codes, customer service. START YOUR FREE TRIAL Try Secondly free for 7 days. Cancel anytime. Get your second number in under a minute. YOUR PRIVACY MATTERS Secondly never shares your personal data. Your real number stays hidden from everyone you call or text through the app. SUBSCRIPTION PLANS Secondly offers flexible subscription plans for premium numbers. Prices vary by plan, starting from $5.99/week to $69.99/year. Your subscription automatically renews unless turned off at least 24 hours before the end of the current period. Manage your subscription in your Apple ID account settings. IMPORTANT - Unlimited calls and texting are subject to fair usage policy. See Terms for details. - For incoming calls and texts, make sure push notifications are enabled. Privacy Policy: https://sites.google.com/view/dualnum/privacy Terms of Use: https://sites.google.com/view/dualnum/terms EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Otro

Get a private, real second phone number for calls and texts on your iPhone. Keep your personal number private while using a dedicated line for work, sales, or online accounts. Enjoy unlimited domestic calling and texting with flexible credit options for international use.

Highlights
  • Real second phone number
  • Private calls and texting
  • No new SIM or device needed
  • Unlimited domestic calls/texts
  • International calling credits
  • Secure account with Apple Sign-In
Features
Read full description

Otro is a real second phone number for calls and texts, right on your iPhone. Choose a number in the country you need and start using it in minutes. No new SIM, no second device. Unlimited calls and texting are included in your plan. Calling and texting other countries is billed from your credit balance, and purchased credits never expire. Share your Otro number freely. Your real number stays private, always. Built for anyone who needs a second line: work calls kept separate from personal ones, a temporary number for marketplace sales or short-term rentals, or a private number for online accounts and dating apps. Sign in with Apple to secure your account and recover it on any device. Manage your subscription, top up credits, and check your rates from Settings. Subscriptions auto-renew until canceled and can be managed anytime in your iOS Settings. Otro's calls are audio-only over the internet and do not support emergency calls to 911, 112, or other local emergency numbers. Use your carrier's Phone app for emergencies. https://getotro.app/terms/

Screenshots

Second Phone Number4 screens
Otro4 screens

Verdict

The call

The clearest difference is ads: Otro at none against Second Phone Number's shown. Second Phone Number's advantage is rating (4.6 vs 4.3) and ratings volume (173 vs 6). On price, review sentiment, in-app purchases and monetization model 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 in-app purchases, starting at $1.99 per 7 days and Otro sells 6 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Second Phone Number holds the better App Store score, 4.6 against 4.3. That said, the two scores are not equally well evidenced: Second Phone Number has 173 ratings behind it against 6, so its average is the more settled of the two. Written reviews split almost evenly too, at 0% and 0% positive.

UpkeepUpdate frequency

Second Phone Number ships an update monthly, Otro every 3 months. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard5 real differences · 5 level
Second Phone Number versus Otro: the parameters behind the verdict, then further details
ParameterSecond Phone NumberOtro
PriceFreeFree
Rating4.6 (173 ratings) — better4.3 (6 ratings)
Positive reviews0.0% of reviews0.0% of reviews
Number of ratings173 — better6
Update frequencyMonthly — betterEvery 3 months
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better16.4
Further details — not scored
Size87 MB49 MB
Age rating4+4+
DeveloperVora BhavikCan Tasar

Customer experience

Second Phone Number

All ratings147 ratings
Positive91.8%
Neutral1.4%
Negative6.8%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Otro

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

10 purchases

Second Phone Number

Subscriptions6
  • Pro Access – Weekly Pack3 Days trial$1.997 Days
  • Pro Plus Access – Weekly Plan3 Days trial$2.997 Days
  • Pro Access – Monthly Pack3 Days trial$5.991 Month
Show 3 more
  • Pro Plus Access – Monthly Plan3 Days trial$7.991 Month
  • Pro Access – Annual Pack3 Days trial$39.991 Year
  • Pro Plus Access – Yearly Plan3 Days trial$49.991 Year
One-time4
  • Unblock user$4.99
  • Reactivate Account$5.99
  • 100 Credits$9.99
Show 1 more
  • 1000 Credits$39.99
6 purchases

Otro

Subscriptions3
  • Weekly$7.997 Days
  • Monthly$14.991 Month
  • Yearly$79.991 Year
One-time3
  • 100 Credits$4.99
  • 300 Credits$12.99
  • 1000 Credits$34.99

Questions

Is Second Phone Number free?
Second Phone Number is free to download, with in-app purchases available.
Is Otro free?
Otro is free to download, with in-app purchases available.
Which has better reviews, Second Phone Number or Otro?
Second Phone Number is rated higher. Second Phone Number averages 4.6 out of 5 from 173 ratings, while Otro averages 4.3 from 6 ratings.
Do Second Phone Number or Otro have ads?
Second Phone Number shows ads; Otro does not.
Which is updated more often, Second Phone Number or Otro?
Second Phone Number ships an update monthly, and Otro every 3 months. Most recently, Second Phone Number was updated on October 30, 2026 and Otro on October 31, 2026.

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