Dreher App vs Deflection Lite
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Dreher App
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This is an app with a calculator, formulary, Unit, General for Craft professions (ISO fits, threads, ...) and many more
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.
Screenshots
Verdict
The clearest difference is iOS requirement: Dreher App at 13.1 against Deflection Lite's 15.0. On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Dreher App ships an update every 4 months, Deflection Lite every 3 months. The most recent releases landed on October 2, 2026 and October 4, 2026 respectively.
| Parameter | Dreher App | Deflection Lite |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.5 (46 ratings) — better |
| Positive reviews | — | 44.4% of reviews |
| Number of ratings | — | 46 — better |
| Update frequency | Every 4 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.1 — better | 15.0 |
| Further details — not scored | ||
| Size | 8 MB | 108 MB |
| Age rating | 4+ | 4+ |
| Developer | Markus Meckel | Blue Ketchep |
In-app purchases
Dreher App
No in-app purchases
Deflection Lite
No in-app purchases
Questions
Is Dreher App free?
Is Deflection Lite free?
Do Dreher App or Deflection Lite have ads?
Which is updated more often, Dreher App or Deflection Lite?
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