# ADX by PostX vs Captivox

The clearest difference is update cadence: Captivox at every 2 weeks against ADX by PostX's every 5 weeks. 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.

ADX by PostX ships an update every 5 weeks, Captivox every 2 weeks. The most recent releases landed on September 20, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | ADX by PostX | Captivox |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Size | 141 MB | 59 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [POD Media Technologies Inc](https://appshunter.io/developer/1825892273) | [Novantic AI](https://appshunter.io/developer/1896647623) |

## What reviewers say

### ADX by PostX

[App page](https://appshunter.io/ios/app/adx-by-postx/id6748466032)

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

**In-app purchases:** none


### Captivox

[App page](https://appshunter.io/ios/app/captivox/id6769294091)

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

**In-app purchases:** none


## Frequently asked questions

### Is ADX by PostX free?

ADX by PostX is free to download, with no in-app purchases.

### Is Captivox free?

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

### Do ADX by PostX or Captivox have ads?

Neither ADX by PostX nor Captivox shows ads.

### Which is updated more often, ADX by PostX or Captivox?

ADX by PostX ships an update every 5 weeks, and Captivox every 2 weeks. Most recently, ADX by PostX was updated on September 20, 2026 and Captivox on September 15, 2026.

---

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