Septic Edge vs Rotor Load Calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Septic Edge
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Septic Edge is a mobile design and planning tool built for wastewater professionals who design residential septic systems. Designers, engineers, sanitarians, and installers can use Septic Edge to capture jobsite information, perform system calculations, lay out septic system components, and create system designs — right from the field. Septic Edge helps bring the design workflow together in one place, reducing the time spent moving between field notes, calculations, drawings, and other tools. With Septic Edge, you can: • Enter project, site, and soil information • Perform septic system sizing calculations • Lay out system components on the jobsite • Create scaled site plans and system layouts • Generate scaled design drawings for project documentation • Create residential septic system designs Whether you're evaluating a site in the field or completing a design, Septic Edge is built to make the residential septic design process faster and more efficient. Terms of Use: https://www.septicedge.com/terms/
Rotor Load Calc
This tool simplifies helicopter load calculations for pilots flying under government contracts. It generates fillable PDFs for performance calculations, signature, and submission, saving time and reducing errors. Easily manage and share your flight planning documents.
- Interagency helicopter load calculation
- Fillable PDF generation
- Aircraft performance data entry
- Automated field population
- File organization and sorting
- Pilot and manager signature fields
- PDF export and sharing options
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Quickly and accurately generate, share, print, and save your Interagency Helicopter Load Calculation. Designed to assist helicopter pilots flying under government contracts by providing a fillable PDF that simplifies performance calculations. After entering basic aircraft information and performance data, Rotor Load Calc completes remaining fields and prepares the document for signature and submission. Simplify your flight planning with Rotor Load Calc. Save time and reduce errors with built-in calculations Line 5 fuel gallons to lbs conversion Lines 6, 9, 11, 12, 13, and 15 populate based on information you provide Line 8 populates after selection of preloaded aircraft Label and sort individual files by name or create custom folders for additional origination Pilot and manager signature fields Export a PDF, print, or send files via AirDrop, text, message, or email This software is a tool to assist with performance calculations. The user is responsible for verifying the accuracy of all data, information, and calculations. The user agrees the developers and related parties are not liable for any issues, actions, or incidents resulting from its use. Your acknowledgement indicates you have read, understand, and agree to the user terms and conditions. For technical support, inquiries, or to report any issues or discrepancies please contact helimetrics.trs@gmail.com Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: Septic Edge at every 2 days against Rotor Load Calc's monthly. On price, ads, in-app purchases and device support 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. Septic Edge sells 1 in-app purchase, starting at $29.99 per month and Rotor Load Calc sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
Septic Edge ships an update every 2 days, Rotor Load Calc monthly. The most recent releases landed on October 26, 2026 and October 23, 2026 respectively.
| Parameter | Septic Edge | Rotor Load Calc |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.7 (3 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 3 — better |
| Update frequency | Every 2 days — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 | 16.0 — better |
| Further details — not scored | ||
| Size | 82 MB | 7 MB |
| Age rating | 17+ | 4+ |
| Developer | AQUALOO SOFTWARE LLC | Josh Cerf |
In-app purchases
Septic Edge
- Septic Edge Subscription7 Days trial$29.991 Month
Rotor Load Calc
- 1 Month$1.991 Month
- 1 Year$19.991 Year









