# Fluctus vs I3 Softphone

The clearest difference is update cadence: Fluctus at every 3 months against I3 Softphone's every 22 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.

Fluctus ships an update every 3 months, I3 Softphone every 22 months. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Fluctus | I3 Softphone |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 22 months |
| Size | 41 MB | 18 MB |
| Requires iOS | **16.4** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Joao Manoel Almeida](https://appshunter.io/developer/1121860845) | [AMAX SOFTWARE HOUSE LTDA](https://appshunter.io/developer/1693262417) |

## What reviewers say

### Fluctus

[App page](https://appshunter.io/ios/app/fluctus/id1507433072)

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

**In-app purchases:** none


### I3 Softphone

[App page](https://appshunter.io/ios/app/i3-softphone/id6736709578)

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

**In-app purchases:** none


## Frequently asked questions

### Is Fluctus free?

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

### Is I3 Softphone free?

I3 Softphone is free to download, with no in-app purchases.

### Do Fluctus or I3 Softphone have ads?

Neither Fluctus nor I3 Softphone shows ads.

### Which is updated more often, Fluctus or I3 Softphone?

Fluctus ships an update every 3 months, and I3 Softphone every 22 months. Most recently, Fluctus was updated on November 7, 2026 and I3 Softphone on November 4, 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.*