# dfirOS vs Zeriq

The clearest difference is update cadence: Zeriq at every 3 days against dfirOS's monthly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. dfirOS sells 2 in-app purchases, starting at $6.99 per month and Zeriq sells 6 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

dfirOS ships an update monthly, Zeriq every 3 days. The most recent releases landed on November 9, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | dfirOS | Zeriq |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Size | 19 MB | 60 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [tumiOS LLC](https://appshunter.io/developer/1878247001) | [Divvly Inc](https://appshunter.io/developer/1819499173) |

## What reviewers say

### dfirOS

[App page](https://appshunter.io/ios/app/dfiros/id6759353337)

**Features:** iPhone Duo support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| dfirOS Pro Monthly | $6.99 | per month |
| dfirOS Pro | $49.99 | per year |


### Zeriq

[App page](https://appshunter.io/ios/app/zeriq/id6776284298)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Builder Lite | $4.99 | per month |
| Zeriq Monthly Pro | $24.99 | per month |
| Zeriq Pro Max | $69.99 | per month |
| 100 Credits | $5.99 | one-time |
| 500 Credits | $24.99 | one-time |
| 1500 Credits | $59.99 | one-time |


## Frequently asked questions

### Is dfirOS free?

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

### Is Zeriq free?

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

### Do dfirOS or Zeriq have ads?

Neither dfirOS nor Zeriq shows ads.

### Which is updated more often, dfirOS or Zeriq?

dfirOS ships an update monthly, and Zeriq every 3 days. Most recently, dfirOS was updated on November 9, 2026 and Zeriq on November 10, 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.*