# Audify vs arDef

The clearest difference is update cadence: arDef at every 6 days against Audify's every 3 weeks. arDef also leads on iOS requirement (14.0 vs 16.6). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Audify sells 4 in-app purchases, starting at $9.99 per 7 days and arDef sells 1 in-app purchase, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Audify ships an update every 3 weeks, arDef every 6 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Audify | arDef |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (23 ratings)](https://appshunter.io/ios/app/ardef/id6742397203/reviews)** |
| Number of ratings | — | **23** |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 6 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 62 MB | 51 MB |
| Requires iOS | 16.6 | **14.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hong Kong Fanxin Interactive Technology Co., Limited](https://appshunter.io/developer/1535362671) | [ANALYTIC SERVICES LTD](https://appshunter.io/developer/1537074268) |

## What reviewers say

### Audify

[App page](https://appshunter.io/ios/app/audify-mp3-converter/id6504385979)

This app offers a comprehensive suite of tools for multimedia conversion and editing. It allows users to convert videos and audio to various formats, edit videos with professional tools, and create custom GIFs from video clips. It aims to be a one-stop solution for all your media processing needs.

**Highlights:** Video conversion to multiple formats, Video editing tools (splicing, cropping, effects), GIF creation from videos, Audio conversion to various formats, Adjustable resolution and bit rate, Real-time preview for editing

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $9.99 | per 7 days |
| Weekly Subscription | $9.99 | per 7 days |
| Yearly Subscription | $69.99 | per year |
| Yearly Subscription | $69.99 | per year |


### arDef

[App page](https://appshunter.io/ios/app/ardef/id6742397203)

Transform your device into a powerful measuring tool using augmented reality. Accurately measure dimensions, angles, and distances directly through your camera. Ideal for professionals and DIY enthusiasts, it offers intuitive controls and the ability to save and share your measurements.

**Highlights:** Accurate length, height, and width measurements, Precise angle calculations, Seamless distance measurement, 3D space mapping of rooms, Intuitive and user-friendly interface, Save and share measurements

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Subscription | $9.99 | per 7 days |


## Frequently asked questions

### Is Audify free?

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

### Is arDef free?

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

### Do Audify or arDef have ads?

Neither Audify nor arDef shows ads.

### Which is updated more often, Audify or arDef?

Audify ships an update every 3 weeks, and arDef every 6 days. Most recently, Audify was updated on October 24, 2026 and arDef on October 24, 2026.

---

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