# OpusTel vs GSM+ Second Phone Number

The clearest difference is review sentiment: OpusTel at 80% against GSM+ Second Phone Number's 37%. OpusTel also leads on in-app purchases (none vs 10) and rating (5.0 vs 4.6). GSM+ Second Phone Number's advantage is update cadence (every 3 weeks vs every 14 months) and ratings volume (762 vs 7). On price, ads and iOS requirement there is nothing between them.

Both are free to download. GSM+ Second Phone Number sells 10 in-app purchases, starting at $9.99 per month. OpusTel asks for nothing beyond the download.

OpusTel holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: GSM+ Second Phone Number has 762 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 80% of OpusTel's written reviews are positive against 37% of GSM+ Second Phone Number's.

OpusTel ships an update every 14 months, GSM+ Second Phone Number every 3 weeks. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | OpusTel | GSM+ Second Phone Number |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/opustel/id945641896/reviews)** | [4.6 (762 ratings)](https://appshunter.io/ios/app/gsm-plus-second-phone-number/id1486650699/reviews) |
| Number of ratings | 7 | **762** |
| Positive reviews | **80.0% of reviews** | 37.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 98 MB | 111 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [OpusTel](https://appshunter.io/developer/945641895) | [Mobile Victory](https://appshunter.io/developer/1486650698) |

## What reviewers say

### OpusTel

[App page](https://appshunter.io/ios/app/opustel/id945641896)

This app provides a real Swiss international telephone number for secure VoIP calls on iOS devices. It offers HD audio quality, free global calls between users, and call recording capabilities, all with a focus on user privacy.

**Highlights:** Real Swiss international telephone number, Secure VoIP calls, HD high-definition audio quality, Free global calls between users, Call recording, Conference calls, Automatic language selection

**In-app purchases:** none


### GSM+ Second Phone Number

[App page](https://appshunter.io/ios/app/gsm-plus-second-phone-number/id1486650699)

Obtain multiple virtual phone numbers from over 40 countries without needing an extra SIM card. Use these numbers for calls, texts, and registrations to protect your personal number's privacy. Enjoy affordable international communication and manage your lines easily.

**Highlights:** Multiple virtual phone numbers, Supports 40+ countries, No extra SIM card needed, Make calls and send SMS/MMS, Call recording, Voicemail creation, Call forwarding

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Canada - Dual Functionality | $9.99 | per month |
| US - (Call+SMS) | $9.99 | per month |
| GB - (Call+SMS) | $9.99 | per month |
| US- Dual Functionality | $14.99 | per month |
| UK - Dual Functionality | $14.99 | per month |
| Auto Credit Tariff #5 | $19.99 | per month |
| Phone number purchase | $3.99 | one-time |
| Phone number purchase | $9.99 | one-time |
| Phone number purchase | $19.99 | one-time |
| Phone number purchase | $39.99 | one-time |

**What reviewers like**

- ⭐ Great app
- 👍 Works well
- 🔥 Excellent service

**What reviewers complain about**

- 🐛 App not working
- 💰 Expensive
- ⚠️ Issues with SMS/calls

**Reported bugs**

- Credits deducted without service
- Numbers becoming inactive quickly

**Requested features**

- Add support for more countries
- Improve customer support


## Frequently asked questions

### Is OpusTel free?

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

### Is GSM+ Second Phone Number free?

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

### Which has better reviews, OpusTel or GSM+ Second Phone Number?

OpusTel is rated higher. OpusTel averages 5.0 out of 5 from 7 ratings, while GSM+ Second Phone Number averages 4.6 from 762 ratings.

### Do OpusTel or GSM+ Second Phone Number have ads?

Neither OpusTel nor GSM+ Second Phone Number shows ads.

### Which is updated more often, OpusTel or GSM+ Second Phone Number?

OpusTel ships an update every 14 months, and GSM+ Second Phone Number every 3 weeks. Most recently, OpusTel was updated on November 1, 2026 and GSM+ Second Phone Number on November 7, 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.*