Comparison

SCALE Structural Calculations vs Scan Flow

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

Scan Flow

Features
Read full description

Scan Flow turns paper into clean, multi-page PDFs, fast. Point your camera at a document, receipt, or note, and Scan Flow auto-detects the edges, straightens the page, and adds it to your document. Reorder the pages, name it, and you have a polished multi-page PDF ready to share. No subscription. No account. Nothing leaves your device. SCAN ANYTHING β€’ Auto edge-detection and perspective correction β€’ Multi-page capture: keep adding pages in one go β€’ Or import existing photos straight from your library CLEAN, TIDY PAGES β€’ Pages are laid out on uniform US-Letter sheets, never stretched or cropped β€’ Combine many pages into one polished multi-page PDF PUT IT IN ORDER β€’ Drag pages to reorder them β€’ Delete or retake any page β€’ Name your document before you export SHARE YOUR WAY β€’ Export a single multi-page PDF β€’ Or save every page as JPEGs bundled into one .zip β€’ Send to Files, Mail, Messages, AirDrop, or print PRIVATE BY DESIGN β€’ 100% on-device. No cloud, no tracking, no sign-in. FREE & PRO Scan Flow is free to use for documents up to 2 pages. Unlock Scan Flow Pro once ($4.99) for unlimited pages and ZIP export. One purchase, yours forever, no subscription.

Screenshots

Scan Flow4 screens

Verdict

The call

The clearest difference is iOS requirement: SCALE Structural Calculations at 12.0 against Scan Flow's 17.0. On price, update cadence, ads and in-app purchases 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 and Scan Flow sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

SCALE Structural Calculations ships an update monthly, Scan Flow fortnightly. The most recent releases landed on October 7, 2026 and October 14, 2026 respectively.

Scorecard1 real difference Β· 7 level
SCALE Structural Calculations versus Scan Flow: the parameters behind the verdict, then further details
ParameterSCALE Structural CalculationsScan Flow
PriceFreeFree
Positive reviews100.0% of reviewsβ€”
Update frequencyMonthlyFortnightly β€” better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesβ€”
DevicesiPadiPhone, iPad β€” better
Requires iOS12.0 β€” better17.0
Further details β€” not scored
Size82 MB3 MB
Age rating4+4+
DeveloperFitzroy Systems LimitedAll Good Folks Limited

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
1 purchases

Scan Flow

One-time1
  • Scan Flow Pro$4.99

Questions

Is SCALE Structural Calculations free?
SCALE Structural Calculations is free to download, with in-app purchases available.
Is Scan Flow free?
Scan Flow is free to download, with in-app purchases available.
Do SCALE Structural Calculations or Scan Flow have ads?
Neither SCALE Structural Calculations nor Scan Flow shows ads.
Which is updated more often, SCALE Structural Calculations or Scan Flow?
SCALE Structural Calculations ships an update monthly, and Scan Flow fortnightly. Most recently, SCALE Structural Calculations was updated on October 7, 2026 and Scan Flow on October 14, 2026.

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