Comparison

CellApp vs Second Phone Number

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

Head to head

US number without SIM

Free

💼 Business

★ 4.25 ratingsView app →

About

CellApp

Read full description

אפליקציית CellApp הינה שלוחה אינטרנטית המאפשרת ביצוע שיחות טלפון כחלק משרות מרכזיית ה IP CENTREX השרות מאפשר הוצאה וקבלת שיחות לכל יעד בהתאם למסלול השיחות שלך בשרות IP CENTREX באמצעות חיבור לאינטרנט אלחוטי WiFi או לרשת הסלולרית בהתאם לעלויות הקובעות בחבילה. לקוח CellApp נהנה מחיבור לשרות IP CENTREX עם מגוון תכונותיה של המרכזייה כגון "העברת שיחות" ו"צלצול מקבילי אישי"

About

Second Phone Number

Obtain a private US second phone number for your iPhone without needing an extra SIM or device. Make and receive calls and texts over Wi-Fi or cellular data, keeping your personal number secure for various needs.

Highlights

Private US second phone number
No extra SIM or device required
VoIP calls over Wi-Fi/cellular
Send and receive SMS
Call US and Canada numbers
Block unwanted numbers
Call and message history

Features

Read full description

Get a private US second phone number on your iPhone without another SIM, eSIM, or extra device. Use your second number over Wi-Fi or cellular data. Call US and Canada phone numbers, receive calls, send SMS to supported US numbers, and receive SMS on your US number. Keep your personal number private when you need a second line for everyday calling, texting, travel, projects, or work. Use one device for your personal number and your second US number. Keep your purchased phone number while your subscription is active, and manage calls and messages inside the app. Features: - Get a US second phone number - No extra SIM, eSIM, landline, or second device needed - Call US and Canada numbers - Send SMS to supported US numbers - Receive SMS on your US number - Receive calls on your second number - Make and receive VoIP calls over Wi-Fi or mobile data - View recent incoming, outgoing, missed, failed, and canceled calls - Pick recipients from your iPhone contacts, with your permission - Block unwanted numbers - Manage your account, subscription, phone number, privacy policy, terms, and support from Settings - Delete your account from inside the app when needed Calling availability: Outbound calling is currently supported for USA and Canada destinations, including eligible mobile numbers, landlines, and toll-free numbers. Messaging availability: SMS availability is focused on supported US routes. International SMS is not supported. Subscription information: Second Phone Number supports subscription access for premium features. Plans may include weekly, monthly, or annual billing options, depending on availability. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. You can manage or cancel subscriptions in your Apple ID account settings. Important: Second Phone Number is not a replacement for your mobile carrier, landline, or emergency service access. Emergency calling limitations may apply. You should maintain another reliable way to contact emergency services. Terms: https://hastree.com/businessphonenumber/terms Privacy Policy: https://hastree.com/businessphonenumber/privacy

Screenshots

CellApp3 screens

Second Phone Number4 screens

Verdict

The call

The clearest difference is in-app purchases: CellApp at none against Second Phone Number's 3. CellApp also leads on iOS requirement (9.0 vs 17.6). Second Phone Number's advantage is update cadence (every 2 weeks vs every 40 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. Second Phone Number sells 3 in-app purchases, starting at $7.99 per 7 days. CellApp asks for nothing beyond the download.

UpkeepUpdate frequency

CellApp ships an update every 40 months, Second Phone Number every 2 weeks. The most recent releases landed on October 10, 2026 and October 17, 2026 respectively.

Scorecard3 real differences · 7 level

CellApp versus Second Phone Number: the parameters behind the verdict, then further details
Parameter	CellApp	Second Phone Number
Price	Free	Free
Rating	—	4.2 (5 ratings) — better
Positive reviews	—	100.0% of reviews
Number of ratings	—	5 — better
Update frequency	Every 40 months	Every 2 weeks — better
Ads	No	No
In-app purchases	No — better	Yes
Monetization	—	Free with in-app purchases
Devices	iPhone, iPod	iPhone, iPad
Requires iOS	9.0 — better	17.6
Further details — not scored
Size	89 MB	64 MB
Age rating	4+	4+
Developer	Cellcom Israel LTD	HASTREE TECHNOLOGIES PRIVATE LIMITED

In-app purchases

None

CellApp

No in-app purchases

3 purchases

Second Phone Number

Subscriptions3

Weekly Subscription$7.997 Days
Monthly$14.991 Month
Yearly$119.991 Year

Questions

Is CellApp free?

CellApp is free to download, with no in-app purchases.

Is Second Phone Number free?

Second Phone Number is free to download, with in-app purchases available.

Do CellApp or Second Phone Number have ads?

Neither CellApp nor Second Phone Number shows ads.

Which is updated more often, CellApp or Second Phone Number?

CellApp ships an update every 40 months, and Second Phone Number every 2 weeks. Most recently, CellApp was updated on October 10, 2026 and Second Phone Number on October 17, 2026.