Comparison

Decibell vs Second Number for Call

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

Head to head
About

Decibell

Features
Read full description

Decibell gives you a second phone number for texts and calls, without a second SIM or a contract. Keep your personal number private and manage every conversation from one simple inbox. Use your second line for online listings, deliveries, new contacts, or anyone you'd rather not give your personal number. It works over Wi-Fi or mobile data, so it goes wherever you go. WHY DECIBELL • A real phone number for texting and calling, not just in-app chat • Calls ring like a normal call, even when the app is closed • Record calls and get a transcript and a short summary afterwards • Every number and conversation in one inbox • No second SIM, no carrier contract HOW IT WORKS Open the app, pick a number from the ones available, and start texting and calling. That's it. YOUR SECOND LINE, YOUR WAY • Label each number, like "Personal", "Selling" or "Travel" • Separate conversations and history for every number • Set your available hours, with automatic replies and a missed-call text • Schedule texts to send later • Save quick replies for messages you send often • Search across all your conversations CALL RECORDING • Turn on recording for any of your numbers; both people hear an announcement when the call connects • Get a transcript and a short summary of each recording • Find a call by searching what was said • Delete a recording anytime SAFER TEXTING • Scam alerts on suspicious texts from unknown numbers • Block numbers and silence unknown callers FEATURES • Send and receive texts with live delivery status • Photo messages • Voicemail with text transcripts • Internet calling with native call screen • A large keypad that formats numbers as you type and accepts pasted numbers • Call details with earlier calls to the same number • Push notifications for new messages and calls • Home screen widgets for unread texts • App lock • Works on Wi-Fi, 4G and 5G • Contacts with one-tap call and message USE IT ANYWHERE Decibell runs over the internet. Travel, move, or switch networks and your second number stays with you. PRIVACY FIRST Your numbers, your conversations. We don't sell your data and we don't run ads. You choose which AI features you use. PLEASE NOTE • Available numbers are shown in the app and may change over time. • Some services, including many banks and messaging apps, don't send verification codes to internet-based numbers. Check with the service before you rely on it. • Decibell doesn't support emergency calls. Use your regular phone for emergencies. • Calls and texts need an internet connection. SUBSCRIPTION • A subscription is required to get a number and to text and call. Plans and prices are shown in the app before you confirm. • Payment is charged to your Apple ID when you confirm the purchase. • The subscription renews automatically unless you cancel at least 24 hours before the end of the current period. You can manage or cancel it anytime in your App Store account settings. Privacy Policy: https://decibell.app/privacy-policy Terms of Use: https://decibell.app/terms-of-use

About

Second Number for Call

Obtain a fully functional second phone line instantly on your iPhone to protect your personal identity. Filter spam, manage professional and personal contacts separately, and identify unknown callers with a smart caller ID search.

Highlights
  • Get a 2nd phone number instantly
  • Smart Caller ID Search
  • Direct Dial Pad
  • Integrated Contact List
  • Search History Tracker
  • Effortless Number Management
Features
Read full description

Keep Your Real Number Private. Call & Text with a Second Line! Do you need a separate number for business, online shopping, dating, or selling on Craigslist, but don't want to buy a second SIM card? Second Number for Call & Text is your ultimate privacy solution. Get a fully functional second phone line instantly on your iPhone! Protect your personal identity, filter spam, and manage your professional and personal life seamlessly—all from one single app. Key Features Get a 2nd Phone Number Instantly Choose a dedicated virtual number for calling and texting. No contract, no second SIM, and absolutely no hassle. Keep your personal life private and secure. Smart Caller ID Search Curious about who is calling? Use our powerful built-in Caller ID Lookup to search any unknown number. Identify spam, telemarketers, or business contacts before you pick up. Direct Dial Pad Make calls directly from the app using our clean and intuitive dial pad. No extra setup required—just dial and call instantly! Integrated Contact List Keep your second-line contacts organized. Easily sync, save, and manage your app-specific contacts separately from your personal phonebook. Search History Tracker Never lose track of important details. Access your complete search history to quickly review previously searched numbers and caller profiles. Effortless Number Management Need to change your number or manage active ones? Our Manage Number feature allows you to control, delete, or switch your virtual numbers with just a few taps. Why Choose "Second Number for Call & Text"? Ultimate Privacy: Stop giving out your real number to strangers, websites, or public platforms. Perfect for Business: Set up a professional helpline for your clients without carrying two phones. Seamless Text & Call: High-quality voice calls and lightning-fast SMS delivery.

Screenshots

Decibell4 screens
Second Number for Call4 screens

Verdict

The call

The clearest difference is in-app purchases: Second Number for Call at none against Decibell's 4. Decibell's advantage is ads (none vs shown) and update cadence (every 3 days vs every 8 days). On price, device support and iOS requirement 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. Decibell sells 4 in-app purchases, starting at $14.99 per month. Second Number for Call asks for nothing beyond the download.

UpkeepUpdate frequency

Decibell ships an update every 3 days, Second Number for Call every 8 days. The most recent releases landed on November 5, 2026 and November 10, 2026 respectively.

Scorecard3 real differences · 6 level
Decibell versus Second Number for Call: the parameters behind the verdict, then further details
ParameterDecibellSecond Number for Call
PriceFreeFree
Rating—4.5 (35 ratings) — better
Number of ratings—35 — better
Update frequencyEvery 3 days — betterEvery 8 days
AdsNo — betterYes
In-app purchasesYesNo — better
Monetization—Ad-supported
DevicesiPhone, iPad — betteriPhone
Requires iOS17.016.0 — better
Further details — not scored
Size52 MB21 MB
Age rating4+4+
DeveloperODBS LLCxenia diaz

In-app purchases

4 purchases

Decibell

Subscriptions4
  • Decibell Pro$14.991 Month
  • Decibell Pro$19.991 Month
  • Decibell Pro (Yearly)$119.991 Year
Show 1 more
  • Decibell Pro (Yearly)$179.991 Year
None

Second Number for Call

No in-app purchases

Questions

Is Decibell free?
Decibell is free to download, with in-app purchases available.
Is Second Number for Call free?
Second Number for Call is free to download, with no in-app purchases.
Do Decibell or Second Number for Call have ads?
Second Number for Call shows ads; Decibell does not.
Which is updated more often, Decibell or Second Number for Call?
Decibell ships an update every 3 days, and Second Number for Call every 8 days. Most recently, Decibell was updated on November 5, 2026 and Second Number for Call on November 10, 2026.

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