# Builder ID vs Difftray

The clearest difference is in-app purchases: Builder ID at none against Difftray's 2. Difftray's advantage is update cadence (every 2 weeks vs every 2 months) and iOS requirement (16.4 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. Difftray sells 2 in-app purchases, starting at $19.99 per year. Builder ID asks for nothing beyond the download.

Builder ID ships an update every 2 months, Difftray every 2 weeks. Both last shipped on October 28, 2026.

## The numbers

| Metric | Builder ID | Difftray |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Size | 8 MB | 76 MB |
| Requires iOS | 18.6 | **16.4** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Scott Levitt](https://appshunter.io/developer/6786383037) | [Marco Gomiero](https://appshunter.io/developer/1680585376) |

## What reviewers say

### Builder ID

[App page](https://appshunter.io/ios/app/builder-id/id6786383035)

**Features:** Vision Pro support

**In-app purchases:** none


### Difftray

[App page](https://appshunter.io/ios/app/difftray-code-review-and-diff/id6789255782)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Difftray Pro Annual | $19.99 | per year |
| Difftray Pro Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is Builder ID free?

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

### Is Difftray free?

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

### Do Builder ID or Difftray have ads?

Neither Builder ID nor Difftray shows ads.

### Which is updated more often, Builder ID or Difftray?

Builder ID ships an update every 2 months, and Difftray every 2 weeks. Most recently, Builder ID was updated on October 28, 2026 and Difftray on October 28, 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.*