# 1SIM VoIP vs Echo Mobile VoIP

The clearest difference is update cadence: 1SIM VoIP at monthly against Echo Mobile VoIP's every 6 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

1SIM VoIP ships an update monthly, Echo Mobile VoIP every 6 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 1SIM VoIP | Echo Mobile VoIP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (87 ratings)](https://appshunter.io/ios/app/1sim-voip/id510371587/reviews)** | — |
| Number of ratings | **87** | — |
| Positive reviews | 26.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 months |
| Monetization | Free | — |
| Size | 86 MB | 121 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Belmont Telecom, Inc.](https://appshunter.io/developer/510353132) | [Echo Networks, LLC](https://appshunter.io/developer/1597994465) |

## What reviewers say

### 1SIM VoIP

[App page](https://appshunter.io/ios/app/1sim-voip/id510371587)

This app offers significantly reduced international calling and texting rates for existing customers. It leverages Wi-Fi or mobile data to facilitate these communications, providing a cost-effective alternative to standard roaming charges. Users need an active account and a specific enabled number to utilize its features.

**Highlights:** Reduced international call rates, Low-cost international SMS, Wi-Fi and mobile data calling, VoIP and SMS enabled Personal Extra Number, Select call routing method

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

**In-app purchases:** none


### Echo Mobile VoIP

[App page](https://appshunter.io/ios/app/echo-mobile-voip/id1610650964)

**Features:** macOS Compatibility, Siri integration

**In-app purchases:** none


## Frequently asked questions

### Is 1SIM VoIP free?

1SIM VoIP is free to download, with no in-app purchases.

### Is Echo Mobile VoIP free?

Echo Mobile VoIP is free to download, with no in-app purchases.

### Do 1SIM VoIP or Echo Mobile VoIP have ads?

Neither 1SIM VoIP nor Echo Mobile VoIP shows ads.

### Which is updated more often, 1SIM VoIP or Echo Mobile VoIP?

1SIM VoIP ships an update monthly, and Echo Mobile VoIP every 6 months. Most recently, 1SIM VoIP was updated on November 1, 2026 and Echo Mobile VoIP on November 3, 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.*