SLYFONE vs mhPBX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Virtual US mobile number
- Global eSIM for data
- App and account verifications
- Two-factor authentication
- International calls and texts
- Spam blocking
- No roaming fees
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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
mhPBX
This app serves as a mobile extension for a business phone system, enabling users to make and receive calls with HD voice and video. It supports push notifications for incoming calls and offers free calling between its users.
- SIP softphone functionality
- Push notifications for calls
- HD voice and video calling
- Free calling between app users
- Mobile extension for business phone system
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mhPBX's accompanying softphone app to the mhPBX platform. A SIP softphone app that supports push notifications, HD voice and video, and more. • Free calling between app users
Screenshots
Verdict
The clearest difference is in-app purchases: mhPBX at none against SLYFONE's 7. mhPBX also leads on ads (none vs shown). SLYFONE's advantage is ratings volume (789 vs 17) and update cadence (every 6 weeks vs every 4 months). On price, rating, 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
Both are free to download. SLYFONE sells 7 in-app purchases, starting at $14.99 per 3 months. mhPBX asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.6 for SLYFONE against 4.6 for mhPBX. That said, the two scores are not equally well evidenced: SLYFONE has 789 ratings behind it against 17, so its average is the more settled of the two.
SLYFONE ships an update every 6 weeks, mhPBX every 4 months. The most recent releases landed on October 19, 2026 and October 3, 2026 respectively.
| Parameter | SLYFONE | mhPBX |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (789 ratings) | 4.6 (17 ratings) |
| Positive reviews | 23.7% of reviews | — |
| Number of ratings | 789 — better | 17 |
| Update frequency | Every 6 weeks — better | Every 4 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 94 MB | 109 MB |
| Age rating | 4+ | 17+ |
| Developer | MobileSphere, Ltd | MULTITEL LLC |
Customer experience
SLYFONE
mhPBX
Bugs and 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
mhPBX
Not enough reviews yet to summarise bugs or requests.
In-app purchases
SLYFONE
- Three Months Plan$14.993 Months
- Yearly Plan$49.991 Year
- eSIM$3.00
- 10 Dollar Credit Bundle$10.00
- 25 Dollar Credit Bundle$25.00
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- 50 Dollar Credit Bundle$50.00
- 100 Dollar Credit Bundle$100.00
mhPBX
No in-app purchases
