# Sphinx Directory vs Di

The clearest difference is in-app purchases: Di at none against Sphinx Directory's 1. Sphinx Directory's advantage is update cadence (every 10 days vs every 3 weeks) and iOS requirement (12.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Sphinx Directory sells 1 in-app purchase, starting at $49.99 per year. Di asks for nothing beyond the download.

Sphinx Directory ships an update every 10 days, Di every 3 weeks. The most recent releases landed on October 3, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Sphinx Directory | Di |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/di-agnostics/id6466275467/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 3 weeks |
| Monetization | — | Free |
| Size | 40 MB | 220 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sphinx Advertising](https://appshunter.io/developer/1271090902) | [S E Project Management Ltd.](https://appshunter.io/developer/1707149185) |

## What reviewers say

### Sphinx Directory

[App page](https://appshunter.io/ios/app/sphinx-directory/id1360789271)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium annually | $49.99 | per year |


### Di

[App page](https://appshunter.io/ios/app/di-agnostics/id6466275467)

This industrial AI sound analytics tool helps businesses and engineers detect potential equipment failures early. It provides insights to reduce maintenance costs and improve operational efficiency through advanced sound analysis.

**Highlights:** AI-powered sound analytics, Proactive equipment failure detection, Reduced maintenance costs, Industrial enterprise focus, Engineer empowerment tools

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sphinx Directory free?

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

### Is Di free?

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

### Do Sphinx Directory or Di have ads?

Neither Sphinx Directory nor Di shows ads.

### Which is updated more often, Sphinx Directory or Di?

Sphinx Directory ships an update every 10 days, and Di every 3 weeks. Most recently, Sphinx Directory was updated on October 3, 2026 and Di on October 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.*