# SMS activate | Virtual SIM vs Comtel Sirens

The clearest difference is in-app purchases: Comtel Sirens at none against SMS activate | Virtual SIM's 4. Comtel Sirens also leads on update cadence (every 2 days vs every 3 weeks) and iOS requirement (13.4 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. SMS activate | Virtual SIM sells 4 one-off in-app purchases. Comtel Sirens asks for nothing beyond the download.

SMS activate | Virtual SIM ships an update every 3 weeks, Comtel Sirens every 2 days. The most recent releases landed on September 22, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | SMS activate | Virtual SIM | Comtel Sirens |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.1 (19 ratings)](https://appshunter.io/ios/app/sms-activate-virtual-sim/id6661027967/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 25.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 20 MB | 67 MB |
| Requires iOS | 17.0 | **13.4** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Aleksandr Nesterov](https://appshunter.io/developer/1404263700) | [ProgressNet](https://appshunter.io/developer/1509775083) |

## What reviewers say

### SMS activate | Virtual SIM

[App page](https://appshunter.io/ios/app/sms-activate-virtual-sim/id6661027967)

This app provides virtual phone numbers for receiving SMS messages, enhancing online privacy and security. It simplifies account creation on various services by offering disposable second numbers for quick and easy verification without exposing your real phone number.

**Highlights:** Disposable virtual numbers, Receive SMS online, Account verification, Privacy protection, Transparent pricing, Instant number assignment

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tokens | $2.99 | one-time |
| Tokens | $6.99 | one-time |
| Tokens | $22.99 | one-time |
| Tokens | $33.99 | one-time |


### Comtel Sirens

[App page](https://appshunter.io/ios/app/comtel-sirens/id6739497084)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SMS activate | Virtual SIM free?

SMS activate | Virtual SIM is free to download, with in-app purchases available.

### Is Comtel Sirens free?

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

### Do SMS activate | Virtual SIM or Comtel Sirens have ads?

Neither SMS activate | Virtual SIM nor Comtel Sirens shows ads.

### Which is updated more often, SMS activate | Virtual SIM or Comtel Sirens?

SMS activate | Virtual SIM ships an update every 3 weeks, and Comtel Sirens every 2 days. Most recently, SMS activate | Virtual SIM was updated on September 22, 2026 and Comtel Sirens on September 12, 2026.

---

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