# MIS vs dfirOS

The clearest difference is in-app purchases: MIS at none against dfirOS's 2. MIS also leads on update cadence (every 5 days vs monthly) and iOS requirement (14.0 vs 16.0). On price, ads 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. MIS asks for nothing beyond the download.

MIS ships an update every 5 days, dfirOS monthly. The most recent releases landed on October 30, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | MIS | dfirOS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Monthly |
| Size | 17 MB | 19 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [IYCWorld Soft Infrastructure pvt. ltd.](https://appshunter.io/developer/785261834) | [tumiOS LLC](https://appshunter.io/developer/1878247001) |

## What reviewers say

### MIS

[App page](https://appshunter.io/ios/app/mis-iycworld/id1578087155)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is MIS free?

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

### Is dfirOS free?

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

### Do MIS or dfirOS have ads?

Neither MIS nor dfirOS shows ads.

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

MIS ships an update every 5 days, and dfirOS monthly. Most recently, MIS was updated on October 30, 2026 and dfirOS on November 9, 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.*