Comparison

SCALE Structural Calculations vs Arthur Owner

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

Head to head
About

SCALE Structural Calculations

This app provides structural engineers with tools to perform calculations and generate component details for various structural elements. It offers a comprehensive library of proformas and expert systems for reinforced concrete, steelwork, timber, and masonry detailing, supporting both Eurocodes and British Standards.

Highlights
  • Structural calculations for beams, columns, slabs
  • Component detailing for steel, concrete, masonry, timber
  • Library of over 600 proforma calculations
  • Expert systems for detailing (LUCID, SPADE)
  • 2D/3D elastic analysis (NL-STRESS)
  • PDF and DOCX output for submission
  • Support for Eurocodes and British Standards
Features
Read full description

SCALE produces structural engineers' calculations and component details for the design of a variety of components such as beams, columns and slabs, using steel, concrete, masonry and timber. SCALE outputs pdf and docx files, consisting of a set of pages, neatly titled, dated and numbered, containing calculations and component details made to a standard suitable for submission to a checking authority. β€œI use SCALE because it produces neatly composed calculation sheets which can easily be checked.” SCALE incorporates a library of over 600 proforma calculations, which are accessed via in-app subscription. The content of this library is continually under review, proformas being added or modified as codes of practice develop and change. All proformas include a parallel set of calculations for Eurocodes and British Standards. β€œI would like to express my thanks for the many years of use of your excellent design software which has made my life so much easier.” SCALE includes LUCID and SPADE, 'expert systems’ which know about reinforced concrete, steelwork, timber and masonry detailing, and build the detail using the knowledge contained within their databases. β€œI am self employed and use SCALE everyday for design. I have also used your LUCID automatic reinforcement detailing / bar schedule for ground beams and use the automatic steel connection detailing program. I have never had any queries on either of these from site.” SCALE includes NL-STRESS for 2D/3D elastic analysis with linking between analysis and design, non-linear (plastic and stability) analysis, and numerous pre and post-processors for vehicle loads, guyed masts etc. SCALE users produce over one million pages of structural calculations per year; SCALE has condensed print and summary options for saving paper. Subscription Details. β€’ Subscribe to all SCALE, LUCID, SPADE and NL-STRESS proformas and data files, including both British Standards and Eurocodes, via auto-renewable in-app subscription. β€’ Payment will be charged to your iTunes Account at the end of your free trial, if offered, or at confirmation of purchase. β€’ Your subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. β€’ Your account will be charged for renewal within 24-hours prior to the end of the current period, at the price shown below. β€’ Monthly auto-renewal Β£49.99 GBP inc VAT. β€’ Annual auto-renewal Β£299.99 GBP inc VAT. β€’ You can manage subscriptions and auto-renewal may be turned off by going to your Account Settings after purchase. More information: https://fitzroy.com/iPad Privacy policy: https://fitzroy.com/privacy Terms of use: https://fitzroy.com/termsofuse

About

Arthur Owner

Gain complete insight into your rental properties. This application provides a clear overview of unit status, financial statements, and work orders. Easily access all necessary documents and track property management activities.

Highlights
  • Property visibility
  • Unit status tracking
  • Remittance statements
  • Work order tracking
  • Document access
Read full description

Feel confident your properties are being well managed. The Arthur Property Owner App gives you a clear overview of everything you need to know about your properties. With this app you will be able to easily find all the information you need, from unit status to remittance statements. - Full visibility of your properties - Easy to use and navigate - Easily access relevant documents - See and track work orders - View and download remittance statements

Screenshots

Arthur Owner4 screens

Verdict

The call

The clearest difference is review sentiment: SCALE Structural Calculations at 100% against Arthur Owner's 0%. Arthur Owner's advantage is in-app purchases (none vs 2) and device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. SCALE Structural Calculations sells 2 in-app purchases, starting at $50.99 per month. Arthur Owner asks for nothing beyond the download.

UpkeepUpdate frequency

SCALE Structural Calculations ships an update monthly, Arthur Owner every 6 weeks. Both last shipped on June 1, 2026.

Scorecard4 real differences Β· 4 level
SCALE Structural Calculations versus Arthur Owner: the parameters behind the verdict, then further details
ParameterSCALE Structural CalculationsArthur Owner
PriceFreeFree
Positive reviews100.0% of reviews β€” better0.0% of reviews
Update frequencyMonthly β€” betterEvery 6 weeks
AdsNoNo
In-app purchasesYesNo β€” better
MonetizationFree with in-app purchasesFree β€” better
DevicesiPadiPhone, iPad, iPod β€” better
Requires iOS12.012.0
Further details β€” not scored
Size82 MB29 MB
Age rating4+4+
DeveloperFitzroy Systems LimitedArthur Online

Customer experience

SCALE Structural Calculations

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Arthur Owner

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

2 purchases

SCALE Structural Calculations

Subscriptions2
  • Full subscription to SCALE14 Days trial$50.991 Month
  • Full subscription to SCALE14 Days trial$299.991 Year
None

Arthur Owner

No in-app purchases

Questions

Is SCALE Structural Calculations free?
SCALE Structural Calculations is free to download, with in-app purchases available.
Is Arthur Owner free?
Arthur Owner is free to download, with no in-app purchases.
Do SCALE Structural Calculations or Arthur Owner have ads?
Neither SCALE Structural Calculations nor Arthur Owner shows ads.
Which is updated more often, SCALE Structural Calculations or Arthur Owner?
SCALE Structural Calculations ships an update monthly, and Arthur Owner every 6 weeks. Most recently, SCALE Structural Calculations was updated on June 1, 2026 and Arthur Owner on June 1, 2026.

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