# VigorSMS vs FastDDNS

The clearest difference is in-app purchases: VigorSMS at none against FastDDNS's 3. VigorSMS also leads on ads (none vs shown) and iOS requirement (11.0 vs 15.0). FastDDNS's advantage is update cadence (fortnightly vs every 14 months). On price and device support there is nothing between them.

Both are free to download. FastDDNS sells 3 in-app purchases, starting at $19.99 per year. VigorSMS asks for nothing beyond the download.

VigorSMS ships an update every 14 months, FastDDNS fortnightly. The most recent releases landed on September 25, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | VigorSMS | FastDDNS |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 14 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 18 MB | 45 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DrayTek Corp.](https://appshunter.io/developer/878568778) | [Minh Nguyen](https://appshunter.io/developer/1659587744) |

## What reviewers say

### VigorSMS

[App page](https://appshunter.io/ios/app/vigorsms/id1525535588)

This app allows users to send SMS messages through Vigor LTE routers without needing to access the router's interface. It supports managing multiple routers and monitoring their LTE connection status.

**Highlights:** Send SMS via SIM card in Vigor LTE routers, No router interface connection needed, Easily switch between multiple routers, Monitor router LTE connection status, Add routers intuitively, Manage multiple routers simultaneously

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

**In-app purchases:** none


### FastDDNS

[App page](https://appshunter.io/ios/app/fastddns/id6759514262)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Basic Yearly | $19.99 | per year |
| Premium Pro Yearly | $34.99 | per year |
| Premium Business Yearly | $69.99 | per year |


## Frequently asked questions

### Is VigorSMS free?

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

### Is FastDDNS free?

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

### Do VigorSMS or FastDDNS have ads?

FastDDNS shows ads; VigorSMS does not.

### Which is updated more often, VigorSMS or FastDDNS?

VigorSMS ships an update every 14 months, and FastDDNS fortnightly. Most recently, VigorSMS was updated on September 25, 2026 and FastDDNS on September 10, 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.*