SWPPP vs Silt
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SWPPP
Streamline stormwater pollution prevention inspections with advanced analytics for compliance and transparency. Create custom plans, conduct site inspections, and generate reports with photos and notes, all accessible from any mobile device. The app works offline and allows for voice dictation.
- Customizable plan development checklists
- Mobile inspection and corrective action forms
- Digital signatures and unlimited photo uploads
- Voice dictation for notes
- Offline functionality
- Cloud-based file storage and access
- Customizable reports with company branding
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SWPPP was designed to sharply reduce the administrative cost of managing stormwater pollution inspections and tracked advanced analytics to ensure compliance and transparency throughout the organization. Plan development guides you through a list of best practice questions within specific categories. These checklists can be augmented with each company’s questions. Questions can be assigned to various parties (both internal and external to the organization) and can be tailored for each project. Mobile forms have forms for SWPPP Site Inspections and Corrective Action Summaries. These forms have never been easier to fill out with calendars for dates, clocks for tracking time, nested options (if answer = “x” then answer the following questions), digital signatures from your device, unlimited photos and more. It also provides a way to capture notes using voice dictation from the mobile device The RTRS Cloud allows companies to “drag and drop files” into the cloud and view them from any mobile device. And, the app works offline! Features and Benefits: -Mobile application based with back end website administration and analytics -SWPPP Site Inspection and Corrective Actions Forms -Innovative Lessons Learned program -SWPPP news broadcast to the app (companies can even broadcast out their own news!) -Reports are effortlessly created with photos, notes, party observed and severity level -Customize reports and website with your own company logo -Most companies are up and running in about an hour
Silt
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At the heart of our app is a commitment to ensuring compliance with stormwater regulations and preserving our natural resources. Our mission is to provide a reliable, efficient, and user-friendly platform for SWPPP inspections and maintenance tracking, empowering businesses and organizations to meet their environmental responsibilities and protect their communities.
Screenshots
Verdict
The clearest difference is iOS requirement: Silt at 15.1 against SWPPP's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
SWPPP ships an update every 3 weeks, Silt monthly. The most recent releases landed on October 4, 2026 and October 3, 2026 respectively.
| Parameter | SWPPP | Silt |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 47 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Real Time Risk Solutions, LLC | INcontrol360 LLC |
In-app purchases
SWPPP
No in-app purchases
Silt
No in-app purchases








