Comparison

SCALE Structural Calculations vs SignalKind

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

SignalKind

Features
Read full description

Some messages take four hours to write. Some get sent in four seconds and cost you the rest of the week. SignalKind is for the thirty seconds in between. Paste in a message you're about to send. It tells you what will land badly and why, names the exact phrases, and offers rewrites in a tone you choose. Or paste in a message you've been sent, and get the plain reading: what it means, what's being asked of you, and whether you're actually in trouble. Built for ADHD and autistic people. Useful for anyone who has ever stared at a message wondering how it will come across. SEND CHECK Names the exact words that will escalate, undermine you, or read as an accusation, and says what to do instead. Not a score. Not a verdict on you. It runs instantly on any iPhone and needs no internet connection. REWRITE Three versions of your message in the tone you pick β€” calm, direct, warm or professional β€” each with a line explaining what changed and why. Take one, or take none. Nothing is ever sent for you. DECODE For messages you've received. Answers the question you actually have: am I in trouble? Then the tone, the deadline, what's being asked, what the sender likely meant, and the phrases worth knowing. "Let's revisit this" usually means it is being shelved. TEMPLATES Thirty guided drafts for the messages that sit unsent for days. Asking for more time. Chasing something ignored twice. Apologising without spiralling. Saying no to extra work. Telling family you're neurodivergent. Raising something with a school, a landlord, or a neighbour. Fill in the blanks and it goes straight to Compose. PHRASE BANK 1,900 clearer, kinder ways to say the hard things, each with the reason it matters rather than just a swap. Sorted by where you're stuck: work, parenting, relationships, school, therapeutic settings, everyday talk, writing, and disability and access. HOLD IT UNTIL MORNING Park a draft instead of sending it. If you rewrite the same angry message three times late at night, SignalKind offers to hold it rather than watch you send it. It comes back in the morning, when you get to decide again. THE KEYBOARD IS FREE FOREVER Install the SignalKind keyboard and it checks your tone as you type, in every app on your phone. Mail, Messages, Slack, anywhere there is a text field. It flags what will land badly and can rewrite it right there without switching apps. No subscription. Not for fourteen days, not as a trial. The keyboard is free, and it stays free. There is also a share extension for rewriting from any app's share sheet, plus widgets, Siri shortcuts and the Action Button. NOTHING LEAVES YOUR IPHONE No account. No sign-up. No server. Rewrites and decodes run on-device with Apple Intelligence, and Send Check runs on your phone with no model at all. Your messages are never uploaded, never stored anywhere but your device, and never used to train anything. There is nothing to leak because there is nothing collected. FOURTEEN DAYS OF EVERYTHING The full app, with nothing withheld and nothing counted, for two weeks. After that, pick a plan to carry on using the app itself. The keyboard keeps working either way, and so does your history. The drafts you wrote are yours to read and copy whether you subscribe or not. Requires Apple Intelligence for rewrites and decodes. Send Check, templates, the phrase bank and held messages work on any iPhone running iOS 18. Terms of Use EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

SignalKind4 screens

Verdict

The call

The clearest difference is update cadence: SCALE Structural Calculations at monthly against SignalKind's every 2 months. SCALE Structural Calculations also leads on iOS requirement (12.0 vs 18.0). On price, ads, in-app purchases and device support 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 SignalKind sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

SCALE Structural Calculations ships an update monthly, SignalKind every 2 months. The most recent releases landed on September 20, 2026 and September 29, 2026 respectively.

Scorecard2 real differences Β· 6 level
SCALE Structural Calculations versus SignalKind: the parameters behind the verdict, then further details
ParameterSCALE Structural CalculationsSignalKind
PriceFreeFree
Positive reviews100.0% of reviewsβ€”
Update frequencyMonthly β€” betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesβ€”
DevicesiPadiPhone, iPad β€” better
Requires iOS12.0 β€” better18.0
Further details β€” not scored
Size82 MB27 MB
Age rating4+12+
DeveloperFitzroy Systems LimitedASHLEY DRURY

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
2 purchases

SignalKind

Subscriptions2
  • Subscription for 1 Month$2.991 Month
  • 1 Year Subscription (12 Months)$19.991 Year

Questions

Is SCALE Structural Calculations free?
SCALE Structural Calculations is free to download, with in-app purchases available.
Is SignalKind free?
SignalKind is free to download, with in-app purchases available.
Do SCALE Structural Calculations or SignalKind have ads?
Neither SCALE Structural Calculations nor SignalKind shows ads.
Which is updated more often, SCALE Structural Calculations or SignalKind?
SCALE Structural Calculations ships an update monthly, and SignalKind every 2 months. Most recently, SCALE Structural Calculations was updated on September 20, 2026 and SignalKind on September 29, 2026.

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