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

SignalKind helps you check a message's tone, find clearer wording and draft a reply before you choose what to send. Use it for emails, work messages, family conversations and the difficult things you have put off saying. Designed with ADHD and autistic adults in mind, and useful whenever you want a little help with your words. CHECK BEFORE YOU SEND Send Check highlights wording that may sound accusatory or escalate a conversation, explains the concern and suggests alternatives. It uses local rules on supported devices. You decide what to change. EXPLORE A DIFFERENT TONE On eligible Apple Intelligence devices, try calm, direct, warm or professional rewrites. Read the suggestions and choose the version that sounds like you. SignalKind does not send messages for you. MAKE SENSE OF A REPLY Decode offers possible readings of a received message, including its tone, requests and deadlines. It cannot know the sender's intention, so your own context still matters. START THE DIFFICULT MESSAGE Use guided templates for requests, boundaries, apologies, work and family conversations. Search the phrase guide for clearer alternatives, or save a draft and return to it later. A FREE KEYBOARD The SignalKind keyboard checks wording in supported text fields and remains free. Eligible devices can also offer on-device rewrites, subject to available extension memory. Secure fields and some apps restrict third-party keyboards. A share extension, widgets and shortcuts help you reach the app's tools. DEVICE PROCESSING AND YOUR CHOICES Message checking uses local rules. Supported Rewrite and Decode run on your device with Apple Intelligence. No SignalKind account is required and your message text is not sent to a developer server. Saved History is stored locally. You choose when to copy or share a message; Apple purchases, device backups and chosen sharing destinations are separate services. ACCESS The full app has a 14-day access window from first launch. Starting it does not start a subscription. Afterwards, a paid app plan is required for continued full-app access. The keyboard stays free, and saved History remains available to read and copy. Monthly and annual subscriptions renew unless cancelled through Apple; Apple shows the applicable price and terms before purchase. REQUIREMENTS iPhone and iPad with iOS or iPadOS 18 or later. Rewrite and Decode require iOS or iPadOS 26 or later, an eligible Apple Intelligence device, Apple Intelligence enabled and the on-device model ready. Keyboard rewrites also depend on available extension memory. Terms of Use EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

SignalKind4 screens

Verdict

The call

The clearest difference is iOS requirement: SCALE Structural Calculations at 12.0 against SignalKind's 18.0. 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 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 October 7, 2026 and October 14, 2026 respectively.

Scorecard1 real difference Β· 7 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 MB17 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 October 7, 2026 and SignalKind on October 14, 2026.

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