# SDFI vs HART (WI)

The clearest difference is ads: HART (WI) at none against SDFI's shown. HART (WI) also leads on update cadence (every 3 months vs every 23 months). SDFI's advantage is device support (3 vs 1) and iOS requirement (11.0 vs 16.0). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SDFI ships an update every 23 months, HART (WI) every 3 months. The most recent releases landed on November 3, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | SDFI | HART (WI) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 23 months | **Every 3 months** |
| Size | 30 MB | 41 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [SDFI-TeleMedicine LLC](https://appshunter.io/developer/1527300738) | [Forseti LLC](https://appshunter.io/developer/1695074140) |

## What reviewers say

### SDFI

[App page](https://appshunter.io/ios/app/sdfi-forensic-guidelines/id1527300736)

**In-app purchases:** none


### HART (WI)

[App page](https://appshunter.io/ios/app/hart-wi/id6739493727)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SDFI free?

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

### Is HART (WI) free?

HART (WI) is free to download, with no in-app purchases.

### Do SDFI or HART (WI) have ads?

SDFI shows ads; HART (WI) does not.

### Which is updated more often, SDFI or HART (WI)?

SDFI ships an update every 23 months, and HART (WI) every 3 months. Most recently, SDFI was updated on November 3, 2026 and HART (WI) 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.*