SCALE Structural Calculations vs PROG
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
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.
- 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
Read full descriptionHide 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. βI use SCALE because it produces neatly composed calculation sheets which can easily be checked.β 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. βI 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.β SCALE includes LUCID and SPADE, 'expert systemsβ which know about reinforced concrete, steelwork, timber and masonry detailing, and build the detail using the knowledge contained within their databases. βI 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.β 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
PROG
Read full descriptionHide full description
Take full control of your construction programmes from your phone, tablet, or desktop. PROG is the powerful mobile-first platform that lets you build, manage, update, and report on programmes β all in one seamless app. PROFESSIONAL PROGRAMMES ON THE GO Create fully featured programmes wherever you are. Start on your phone or tablet during a site walk, then finish on desktop β everything syncs instantly over the cloud. PROG is incredibly easy to use, so whether you need a simple programme or a highly complex one, you can make it exactly as detailed as your project demands. Enjoy industry-standard tools including task dependencies, constraints, milestones, lag/lead links, critical path analysis, float calculations, and full CPM rescheduling. Group tasks by packages, trades, or locations with powerful tag libraries. Customise your Gantt chart with grids, markers, zone shading, and non-working day calendars. Add custom columns with calculated and user fields. Record real progress on interactive task bars β track % complete, assign statuses (Not Started, In Progress, At Risk, In Delay), log gains/delays with photos and descriptions, and instantly see the impact on your critical path. Distinguish internal and external issues and visualise their effect on the schedule. Store multiple programme revisions and drafts in organised folders so you never lose your baseline. Import/export in native .prg or XML formats. REAL TIME COLLABORATION The whole team works on the same live programme. Project owners control access and permissions while monitoring activity in real time β no version conflicts, no missed updates. TASK VIEW DESIGNED FOR SITE TEAMS Switch to Task View for a clean, expandable task list with collapsing groups. Filter by upcoming works, slipping tasks, overdue items, or tags for packages and areas. Update progress, add issues, resolutions, and photos β even offline. Changes sync and instantly update the Gantt chart and reports. TRACK WHAT MATTERS MOST Key contract details are always visible: PC date, weeks to go, and planned vs actual progress. Live task statuses feed directly into critical path analysis so you always know whatβs slipping and its impact on your finish date. POWERFUL REPORTING BUILT IN Generate professional customisable PDF reports in seconds from your live programme. Use the report builder with presets, add your company logo and branding, and include exactly what you need: planned vs actual, status summaries, time remaining, slipping/overdue tasks, active issues (internal/external), and historic resolved issues. Live dashboards give instant visibility across all projects on any device. PRINT & SHARE WITH EASE One-tap PDF export of your Gantt chart with automatic sizing and full branding. No fiddly scaling or border files β perfect for clients and stakeholders. ORGANISATION-LEVEL CONTROL Join your company dashboard to centrally manage branding, themes, and shared tag libraries. Full team management with complete activity oversight. Stay Ahead with Smart Notifications. Get alerts for tasks due soon, overdue items, progress deadlines, and more. WORKS THE WAY YOU DO Truly mobile-first for site life, fully synced with desktop and web. Work offline and sync when back online. Switch devices seamlessly. All projects and programmes are accessible in one place, with full revision history so you never lose sight of where you started. SIMPLE PRICING A straightforward per-user monthly subscription unlocks every feature from day one β no hidden tiers or limits. Whether youβre updating progress on site or building complex programmes at your desk, PROG helps your team stay in control, communicate clearly, and deliver on time. Download PROG today and programme your way β with real power, real collaboration, and real results on site.
Screenshots
Verdict
The clearest difference is update cadence: PROG at every 3 days against SCALE Structural Calculations's monthly. PROG also leads on device support (3 vs 1). SCALE Structural Calculations's advantage is iOS requirement (12.0 vs 15.1). On price, 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
Both are free to download. SCALE Structural Calculations sells 2 in-app purchases, starting at $50.99 per month and PROG sells 4 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
SCALE Structural Calculations ships an update monthly, PROG every 3 days. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.
| Parameter | SCALE Structural Calculations | PROG |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | β |
| Update frequency | Monthly | Every 3 days β better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | β |
| Devices | iPad | iPhone, iPad, iPod β better |
| Requires iOS | 12.0 β better | 15.1 |
| Further details β not scored | ||
| Size | 82 MB | 51 MB |
| Age rating | 4+ | 4+ |
| Developer | Fitzroy Systems Limited | Ono-michi |
In-app purchases
SCALE Structural Calculations
- Full subscription to SCALE14 Days trial$50.991 Month
- Full subscription to SCALE14 Days trial$299.991 Year
PROG
- Paid Monthly Subscription$9.991 Month
- Pro Monthly$22.991 Month
- Paid Annual Subscription$119.991 Year
Show 1 moreShow fewer
- Pro Annual Subscription$229.991 Year
Questions
Is SCALE Structural Calculations free?
Is PROG free?
Do SCALE Structural Calculations or PROG have ads?
Which is updated more often, SCALE Structural Calculations or PROG?
Other comparisons















