Deflection Lite vs Auto RC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Deflection Lite
This app provides interactive and precise structural beam analysis. Easily visualize beam bending by dragging loads and supports, and calculate key engineering results like reactions, shear force, and bending moment.
- Interactive beam bending visualization
- Calculate reactions, shear force, and bending moment
- Built-in cross-section databases
- Unlimited loads and supports
- Export design to shareable permalink
- Metric and standard units
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Deflection Lite is the most interactive, fast, and precise app available for structural beam analysis. Simply drag loads and supports on the beam, and see how it bends. RESULTS Calculate reactions, shear force, bending moment, and beam deflection quickly and easily. CROSS SECTION DATABASES Specify elastic modulus and moment of inertia values directly, or find common shapes and materials using the built-in databases, which include most international steel sections, as well as some aluminum and wood shapes. UNLIMITED LOADS AND SUPPORTS Simply drag any load or support on the beam. • Concentrated point loads • Distributed loads • Moment loads • Simple supports • Fixed supports • Fixed hinges • Floating Gerber hinges OTHER FEATURES • Export your design to a permalink that you can share. • Automatic detection of local maxima and minima in diagrams • Metric and standard measurement units CONTACT We like to hear from you! Please email contact@ketchep.com if you have any issues, questions, or comments.
Auto RC
This app transforms structural design into a superpower by automatically generating beam layouts from floor plans using AI. It offers tools for analyzing and designing structural elements, with advanced features for full building modeling and detailed exports available through a subscription.
- AI-powered floor plan scanning
- Automatic beam layout generation
- 3D rebar detailing
- Full building structural modeling
- 3D structural analysis
- Exportable calculation reports and CAD plans
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Structural design becomes your new superpower. Auto RC doesn't just deliver fast results — it helps you understand the fundamentals of structural design and empowers you to create professional-grade structures with confidence. Free Features for All Users 1) Scan floor plans and auto-generate beam layouts using AI 2) Analyze and design structural elements automatically (up to 50 beams per plan) 3) View 3D rebar details for beams 4) Customize beam and slab design as needed 5) Save projects by watching ads Premium Features for Subscribers 1) Build full structural models with Pro Mode 2) Design and edit entire buildings: slabs, beams, columns, foundations, stairs, roofs, and steel frames 3) Run full 3D structural analysis with load combinations 4) Export full calculation reports 5) Auto-generate rebar models for the entire structure 6) Export bar cut lists and shop drawings 7) Export bill of quantities (BOQ) 8) Export structural CAD plans 9) Export 3D rebar models in IFC format for BIM compatibility 10) Enjoy an ad-free experience Auto RC Subscription Plans Weekly: $4.99 Monthly: $9.99 Yearly: $99.99 (save 2 months) Free 7-day trial – cancel anytime. Your premium access stays active until the end of the trial or billing cycle. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Deflection Lite at none against Auto RC's 8. Deflection Lite also leads on ratings volume (46 vs 6). Auto RC's advantage is review sentiment (75% vs 44%) and update cadence (every 3 weeks vs every 3 months). On price, rating, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Auto RC sells 8 in-app purchases, starting at $9.99 per month. Deflection Lite asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.5 for Deflection Lite against 4.5 for Auto RC. That said, the two scores are not equally well evidenced: Deflection Lite has 46 ratings behind it against 6, so its average is the more settled of the two. Written reviews are what separate them: 44% of Deflection Lite's written reviews are positive against 75% of Auto RC's.
Deflection Lite ships an update every 3 months, Auto RC every 3 weeks. The most recent releases landed on September 17, 2026 and August 31, 2026 respectively.
| Parameter | Deflection Lite | Auto RC |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (46 ratings) | 4.5 (6 ratings) |
| Positive reviews | 44.4% of reviews | 75.0% of reviews — better |
| Number of ratings | 46 — better | 6 |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Freemium — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 108 MB | 75 MB |
| Age rating | 4+ | 4+ |
| Developer | Blue Ketchep | vachiraphun mekvarmdee |
Customer experience
Deflection Lite
Auto RC
In-app purchases
Deflection Lite
No in-app purchases
Auto RC
- สมัครสมาชิกรายเดือน7 Days trial$9.991 Month
- สมัครสมาชิกรายปี7 Days trial$99.991 Year
- Export IFC model file$2.99
- Export structural model file$2.99
- สมัครสมาชิกแบบไม่ต่ออายุ$4.99
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- Export structural model file$4.99
- Export structural model file$7.99
- Export structural model file$9.99
Questions
Is Deflection Lite free?
Is Auto RC free?
Which has better reviews, Deflection Lite or Auto RC?
Do Deflection Lite or Auto RC have ads?
Which is updated more often, Deflection Lite or Auto RC?
Other comparisons
