# 1SIM VoIP vs Software25

The clearest difference is update cadence: Software25 at every 11 days against 1SIM VoIP's monthly. Software25 also leads on iOS requirement (13.0 vs 15.0). 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, Software25 every 11 days. The most recent releases landed on October 14, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | 1SIM VoIP | Software25 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (84 ratings)](https://appshunter.io/ios/app/1sim-voip/id510371587/reviews)** | — |
| Number of ratings | **84** | — |
| Positive reviews | 26.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 11 days** |
| Monetization | Free | — |
| Size | 86 MB | 37 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Belmont Telecom, Inc.](https://appshunter.io/developer/510353132) | [Darren Mullan](https://appshunter.io/developer/1759965923) |

## 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


### Software25

[App page](https://appshunter.io/ios/app/software25/id6587571330)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 1SIM VoIP free?

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

### Is Software25 free?

Software25 is free to download, with no in-app purchases.

### Do 1SIM VoIP or Software25 have ads?

Neither 1SIM VoIP nor Software25 shows ads.

### Which is updated more often, 1SIM VoIP or Software25?

1SIM VoIP ships an update monthly, and Software25 every 11 days. Most recently, 1SIM VoIP was updated on October 14, 2026 and Software25 on October 12, 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.*