# PD Link vs Aligna

The clearest difference is in-app purchases: PD Link at none against Aligna's 1. Aligna's advantage is update cadence (every 4 days vs every 5 weeks) and iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Aligna sells 1 one-off in-app purchase. PD Link asks for nothing beyond the download.

PD Link ships an update every 5 weeks, Aligna every 4 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | PD Link | Aligna |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/aligna-file-renamer/id6783642658/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 4 days** |
| Size | 7 MB | 25 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Progressive Downloader](https://appshunter.io/developer/510365491) | [ONNELLAB](https://appshunter.io/developer/1879534319) |

## What reviewers say

### PD Link

[App page](https://appshunter.io/ios/app/pd-link/id6763048297)

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

**In-app purchases:** none


### Aligna

[App page](https://appshunter.io/ios/app/aligna-file-renamer/id6783642658)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Aligna Pro | $1.99 | one-time |


## Frequently asked questions

### Is PD Link free?

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

### Is Aligna free?

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

### Do PD Link or Aligna have ads?

Neither PD Link nor Aligna shows ads.

### Which is updated more often, PD Link or Aligna?

PD Link ships an update every 5 weeks, and Aligna every 4 days. Most recently, PD Link was updated on October 24, 2026 and Aligna on October 25, 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.*