Comparison

//afone vs SLYFONE

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

Head to head
About

//afone

Features
Read full description

//afone is the reference implementation for SIP Telephony on iOS that can be used on different SIP stacks with no effort. This is a ready to use softphone with the following features: * video calling * mute/unmute * hold/unhold * DTMF tone sending You will need your own SIP server to connect to or a CPaaS provider account and credentials. It's Open Source and available on GitHub under https://github.com/automat-berlin/afone

About

SLYFONE

Obtain a genuine US mobile number for essential verifications and communications, alongside a global eSIM for data access in over 110 countries. This app ensures privacy, facilitates international calls, and provides reliable connectivity for travel and business.

Highlights
  • Virtual US mobile number
  • Global eSIM for data
  • App and account verifications
  • Two-factor authentication
  • International calls and texts
  • Spam blocking
  • No roaming fees
Features
Read full description

Get a Real US Mobile Number + Global eSIM in One Powerful App SLYFONE is the only app that gives you both: A real U.S. mobile number (not VoIP) for verifications, calls, and secure texting A global eSIM to stay connected with mobile data in 110+ countries Use SLYFONE to activate WhatsApp, protect your privacy, make international calls, and stay online wherever life takes you. What Makes SLYFONE Unique? Unlike VoIP apps, SLYFONE gives you a real mobile number you can use for app signups, banking, and secure 2FA. And with built-in global eSIM, you get instant, affordable data without SIM cards, roaming charges, or local carriers. Whether you're at home, traveling, or building your business, SLYFONE has you covered. Top Features Virtual U.S. Mobile Number - Activate apps like WhatsApp, Telegram, Zelle, PayPal & more - Receive SMS for 2FA or signups (works with banks, crypto, social media) - Make & receive calls or texts over Wi-Fi/data - Caller ID, voicemail, call forwarding, and spam blocking - Perfect second line for business or privacy Global eSIM Coverage - Get mobile data in over 100 countries — no SIM card needed - Easy to install and activate from the app - Avoid roaming fees while traveling - Use alongside your SLYFONE number for full global connectivity - Ideal for travelers, expats, digital nomads, and remote workers   Use SLYFONE For: - App & account verifications (WhatsApp, Uber, Binance, etc.) - Two-factor authentication (2FA) codes from banks and social platforms - Traveling without roaming or SIM swaps - Keeping your personal number private - Running your small business or side hustle with a dedicated line -Secure texting & calling while abroad All-In-One Communication Tools - Real US number (not VoIP) - Global eSIM (travel-ready) - Send/receive texts & calls - Spam call blocking - Call forwarding to any US/Canada number - Caller ID & voicemail transcription - Share media in messages - Number porting support - Free toll-free calls (no subscription needed) Subscription Plans A paid plan is required to activate and use your US number. - 3-Month Plan – $8.99 - Annual Plan – $29.99 - Outbound Credits – $10 for 1000 credits (1 credit = 1 SMS or 1 min call) No hidden fees. No free trial. Please review pricing before purchasing. Privacy Policy: https://slyfone.com/privacy/ Terms of Use: https://slyfone.com/terms.html

Screenshots

//afone2 screens
SLYFONE4 screens

Verdict

The call

The clearest difference is in-app purchases: //afone at none against SLYFONE's 7. //afone also leads on ads (none vs shown) and iOS requirement (12.1 vs 15.0). On price, update cadence 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. SLYFONE sells 7 in-app purchases, starting at $14.99 per 3 months. //afone asks for nothing beyond the download.

UpkeepUpdate frequency

//afone ships an update monthly, SLYFONE every 6 weeks. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.

Scorecard3 real differences · 7 level
//afone versus SLYFONE: the parameters behind the verdict, then further details
Parameter//afoneSLYFONE
PriceFreeFree
Rating—4.6 (775 ratings) — better
Positive reviews—23.7% of reviews
Number of ratings—775 — better
Update frequencyMonthly — betterEvery 6 weeks
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPod
Requires iOS12.1 — better15.0
Further details — not scored
Size24 MB94 MB
Age rating4+4+
DeveloperAutomat Berlin GmbHMobileSphere, Ltd

Bugs and requests

//afone

Not enough reviews yet to summarise bugs or requests.

SLYFONE

Reported bugs

4 issues
  • Account temporarily unavailable
  • Texts/codes not received
  • Calls not working properly
  • Login/sign-up issues

Requested features

3 requests
  • Fix international prefix support
  • Improve call forwarding
  • Add more features like Dingtone app

In-app purchases

None

//afone

No in-app purchases

7 purchases

SLYFONE

Subscriptions2
  • Three Months Plan$14.993 Months
  • Yearly Plan$49.991 Year
One-time5
  • eSIM$3.00
  • 10 Dollar Credit Bundle$10.00
  • 25 Dollar Credit Bundle$25.00
Show 2 more
  • 50 Dollar Credit Bundle$50.00
  • 100 Dollar Credit Bundle$100.00

Questions

Is //afone free?
//afone is free to download, with no in-app purchases.
Is SLYFONE free?
SLYFONE is free to download, with in-app purchases available.
Do //afone or SLYFONE have ads?
SLYFONE shows ads; //afone does not.
Which is updated more often, //afone or SLYFONE?
//afone ships an update monthly, and SLYFONE every 6 weeks. Most recently, //afone was updated on October 25, 2026 and SLYFONE on October 29, 2026.

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