# Dirt Locker Erosion Control vs SureMark

The clearest difference is monetization model: Dirt Locker Erosion Control at free against SureMark's free with in-app purchases. Dirt Locker Erosion Control also leads on ratings volume (6 vs 1) and iOS requirement (13.0 vs 16.4). On price, rating, review sentiment and update cadence there is nothing between them.

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

SureMark holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Dirt Locker Erosion Control has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Dirt Locker Erosion Control ships an update monthly, SureMark every 2 months. The most recent releases landed on October 25, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Dirt Locker Erosion Control | SureMark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (6 ratings)](https://appshunter.io/ios/app/dirt-locker-erosion-control/id6740719075/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/suremark-verified-web/id6753729698/reviews)** |
| Number of ratings | **6** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 38 MB | 58 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Christopher Trebilcock](https://appshunter.io/developer/1791249217) | [SureMark Digital Identity Services Inc.](https://appshunter.io/developer/1849716179) |

## What reviewers say

### Dirt Locker Erosion Control

[App page](https://appshunter.io/ios/app/dirt-locker-erosion-control/id6740719075)

This app simplifies hillside projects by allowing users to measure slopes, calculate material needs, and purchase products directly. It's designed for both backyard transformations and larger landscaping endeavors, ensuring accurate planning and product selection for terracing and gardening.

**Highlights:** Easy slope measurement, Smart material calculator, In-app product purchasing, Project tracking and organization, Shareable PDF reports, Offline mode

**In-app purchases:** none


### SureMark

[App page](https://appshunter.io/ios/app/suremark-verified-web/id6753729698)

Verify the identity of individuals in real-time across calls, video chats, and text messages. This tool provides instant, impersonation-proof confirmation, protecting your reputation and relationships from sophisticated fakes.

**Highlights:** Instant identity verification, Impersonation-proof technology, Cross-platform protection, Simple challenge and response, Privacy-focused, no ads or data selling, Credential issuance and content signing (higher tiers)

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

**In-app purchases:** none


## Frequently asked questions

### Is Dirt Locker Erosion Control free?

Dirt Locker Erosion Control is free to download, with no in-app purchases.

### Is SureMark free?

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

### Which has better reviews, Dirt Locker Erosion Control or SureMark?

SureMark is rated higher. Dirt Locker Erosion Control averages 4.8 out of 5 from 6 ratings, while SureMark averages 5.0 from 1 ratings.

### Do Dirt Locker Erosion Control or SureMark have ads?

Neither Dirt Locker Erosion Control nor SureMark shows ads.

### Which is updated more often, Dirt Locker Erosion Control or SureMark?

Dirt Locker Erosion Control ships an update monthly, and SureMark every 2 months. Most recently, Dirt Locker Erosion Control was updated on October 25, 2026 and SureMark on October 15, 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.*