# SDFI vs Krinkle Environmental

The clearest difference is ads: Krinkle Environmental at none against SDFI's shown. Krinkle Environmental also leads on update cadence (every 11 months vs every 23 months). SDFI's advantage is iOS requirement (11.0 vs 13.2). On price, in-app purchases and device support 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, Krinkle Environmental every 11 months. The most recent releases landed on September 29, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | SDFI | Krinkle Environmental |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/krinkle-environmental/id1528343231/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 23 months | **Every 11 months** |
| Monetization | — | Free |
| Size | 30 MB | 59 MB |
| Requires iOS | **11.0** | 13.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SDFI-TeleMedicine LLC](https://appshunter.io/developer/1527300738) | [Krinkle, LLC](https://appshunter.io/developer/1188803452) |

## What reviewers say

### SDFI

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

**In-app purchases:** none


### Krinkle Environmental

[App page](https://appshunter.io/ios/app/krinkle-environmental/id1528343231)

This app streamlines data collection for field workers, ensuring accuracy, completeness, and speed. It offers a guided process with flexibility, allowing users to complete tasks in the most efficient order for each project.

**Highlights:** Guided data collection process, Flexible task completion order, Ensures accuracy and completeness, Improves efficiency for field workers, Site assessment capabilities

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

**In-app purchases:** none


## Frequently asked questions

### Is SDFI free?

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

### Is Krinkle Environmental free?

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

### Do SDFI or Krinkle Environmental have ads?

SDFI shows ads; Krinkle Environmental does not.

### Which is updated more often, SDFI or Krinkle Environmental?

SDFI ships an update every 23 months, and Krinkle Environmental every 11 months. Most recently, SDFI was updated on September 29, 2026 and Krinkle Environmental on October 6, 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.*