Comparison

Septic Edge vs Rotor Load Calc

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Septic Edge

Features
Read full description

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/

About

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.

Highlights
  • 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
Features
Read full description

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

Septic Edge4 screens
Rotor Load Calc4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard1 real difference · 9 level
Septic Edge versus Rotor Load Calc: the parameters behind the verdict, then further details
ParameterSeptic EdgeRotor Load Calc
PriceFreeFree
Rating—4.7 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 2 days — betterMonthly
AdsNoNo
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.616.0 — better
Further details — not scored
Size82 MB7 MB
Age rating17+4+
DeveloperAQUALOO SOFTWARE LLCJosh Cerf

In-app purchases

1 purchases

Septic Edge

Subscriptions1
  • Septic Edge Subscription7 Days trial$29.991 Month
2 purchases

Rotor Load Calc

Subscriptions2
  • 1 Month$1.991 Month
  • 1 Year$19.991 Year

Questions

Is Septic Edge free?
Septic Edge is free to download, with in-app purchases available.
Is Rotor Load Calc free?
Rotor Load Calc is free to download, with in-app purchases available.
Do Septic Edge or Rotor Load Calc have ads?
Neither Septic Edge nor Rotor Load Calc shows ads.
Which is updated more often, Septic Edge or Rotor Load Calc?
Septic Edge ships an update every 2 days, and Rotor Load Calc monthly. Most recently, Septic Edge was updated on October 26, 2026 and Rotor Load Calc on October 23, 2026.

Other comparisons