# SLYFONE vs Second Phone Number

The clearest difference is review sentiment: Second Phone Number at 64% against SLYFONE's 24%. Second Phone Number also leads on ads (none vs shown) and update cadence (fortnightly vs every 6 weeks). SLYFONE's advantage is rating (4.6 vs 4.3) and iOS requirement (15.0 vs 18.0). On price, ratings volume, in-app purchases and monetization model there is nothing between them.

Both are free to download. SLYFONE sells 7 in-app purchases, starting at $14.99 per 3 months and Second Phone Number sells 19 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

SLYFONE holds the better App Store score, 4.6 against 4.3. Both are backed by a comparable volume of ratings — 777 and 917 respectively. Written reviews complicate that: 24% of SLYFONE's written reviews are positive against 64% of Second Phone Number's, so the app with the better star average is not the one people write more warmly about.

SLYFONE ships an update every 6 weeks, Second Phone Number fortnightly. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | SLYFONE | Second Phone Number |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (777 ratings)](https://appshunter.io/ios/app/slyfone/id1504527810/reviews)** | [4.3 (917 ratings)](https://appshunter.io/ios/app/second-phone-number-calling/id6470302849/reviews) |
| Number of ratings | 777 | **917** |
| Positive reviews | 23.7% of reviews | **64.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | — | **#116** |
| Size | 94 MB | 126 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [MobileSphere, Ltd](https://appshunter.io/developer/295767902) | [Municorn Limited](https://appshunter.io/developer/380984285) |

## What reviewers say

### SLYFONE

[App page](https://appshunter.io/ios/app/slyfone/id1504527810)

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:** Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Three Months Plan | $14.99 | per 3 months |
| Yearly Plan | $49.99 | per year |
| eSIM | $3.00 | one-time |
| 10 Dollar Credit Bundle | $10.00 | one-time |
| 25 Dollar Credit Bundle | $25.00 | one-time |
| 50 Dollar Credit Bundle | $50.00 | one-time |
| 100 Dollar Credit Bundle | $100.00 | one-time |

**What reviewers like**

- ⭐ Excellent app
- 🙌 Saved me from a problem
- 👍 Very good

**What reviewers complain about**

- 💰 Expensive subscription
- 🔒 Unsafe app with harassment
- 🐛 Non-functioning features
- 🚫 Doesn't work as advertised
- 📞 Poor call quality

**Reported bugs**

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

**Requested features**

- Fix international prefix support
- Improve call forwarding
- Add more features like Dingtone app


### Second Phone Number

[App page](https://appshunter.io/ios/app/second-phone-number-calling/id6470302849)

**Currently charting:** #116 Top Grossing · Utilities (US App Store)

Obtain a secondary phone number for calls and texts without needing an extra SIM card. Use it for personal or professional purposes, including online marketplaces, dating, and business, while keeping your primary number private. Make affordable international calls and send SMS/MMS with this virtual line.

**Highlights:** Obtain a secondary phone number, Make calls and send texts, No additional SIM card needed, Maintain privacy, Affordable international calls, Send SMS/MMS

**Features:** Siri integration

**In-app purchases (19)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Second Phone Premium (week) | $4.99 | per 7 days |
| Save your number | $4.99 | per 7 days |
| Second Phone Premium (monthly) | $8.99 | per month |
| Second Phone Premium (week) | $9.99 | per 7 days |
| Second Phone Premium (week) | $9.99 | per 7 days |
| Second Phone Premium (week) | $14.99 | per 7 days |
| Second Phone Number: Call Text | $14.99 | per 7 days |
| Second Phone Save Number 1yr | $23.99 | per year |
| Second Phone Premium (monthly) | $24.99 | per month |
| Monthly Trial | $29.99 | per month |
| Second Phone Premium (month) | $29.99 | per month |
| Second Phone Premium (quarter) | $49.99 | per 3 months |
| Second Phone Premium (yearly) | $49.99 | per year |
| Second Phone Premium (yearly) | $95.99 | per year |
| Yearly Plan 2026 | $95.99 | per year |
| Change number | $4.99 | one-time |
| Change Number 2+ | $7.99 | one-time |
| Change Number 3 | $14.99 | one-time |
| International Calls&SMS | $19.99 | one-time |

**What reviewers like**

- 🚀 Fast and easy setup
- 👍 Convenient and practical
- 🚀 Reliable and smooth performance
- 👍 Helpful customer service
- 🚀 Versatile and feature-rich

**What reviewers complain about**

- 🐛 Occasional crashes and bugs
- ⚠️ Unclear restrictions on app usage
- 💰 Subscription fees may be high for some users
- 🔒 Privacy and security concerns
- ⚠️ Limited number of available phone numbers

**Reported bugs**

- Inability to send/receive messages or make calls
- Crashes when trying to link contacts
- Verification codes not being delivered

**Requested features**

- Ability to change phone numbers more frequently
- Support for more social media and messaging apps
- Option to delete text message history
- Local phone number availability for international users


## Frequently asked questions

### Is SLYFONE free?

SLYFONE is free to download, with in-app purchases available.

### Is Second Phone Number free?

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

### Which has better reviews, SLYFONE or Second Phone Number?

SLYFONE is rated higher. SLYFONE averages 4.6 out of 5 from 777 ratings, while Second Phone Number averages 4.3 from 917 ratings.

### Do SLYFONE or Second Phone Number have ads?

SLYFONE shows ads; Second Phone Number does not.

### Which is updated more often, SLYFONE or Second Phone Number?

SLYFONE ships an update every 6 weeks, and Second Phone Number fortnightly. Most recently, SLYFONE was updated on October 27, 2026 and Second Phone Number on October 28, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*