Comparison

Deflection Pro vs PVVS

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Deflection Pro

This advanced structural analysis calculator assists engineers with beam, truss, and frame design. It generates load combinations based on American and European standards and performs detailed beam column capacity checks. Results are presented intuitively, with options to export to PDF and save files.

Highlights
  • Beam, truss, and frame analysis
  • Load combination generation (US & EU standards)
  • Beam column capacity checks (flexure, shear, tension, compression)
  • Detailed design checks for various buckling types
  • PDF export
  • Save to external file
Features
Read full description

Deflection Pro is an advanced structural analysis calculator for beam, truss, and frame design. The software is designed to be simple, intuitive, and useful for structural engineers worldwide. Like our other apps, it is designed to run on all your devices. LOAD COMBINATIONS Deflection Pro generates common load combinations based on American and European standards. Simply select a desired design method in the settings page and assign a category to each load. The results are seamlessly aggregated and integrated into the same charts and interface as if you were designing a simple beam case. BEAM COLUMN CAPACITY CHECKS Deflection Pro calculates beam column strength capacity for flexure, shear, tension, and compression based on the AISC specification. The software accurately reproduces tabulated values in steel construction manuals. Flexure Design • Yielding • Lateral torsional buckling • Local buckling • Flange local buckling • Compression flange local buckling • Web local buckling • Compression tee stem local buckling Shear Design • Web shear strength • Web shear strength, considering field action Tension Design • Yielding tensile strength • Rupture tensile strength Compression Design • Flexural buckling • Torsional buckling OTHER FEATURES Since this is our latest and greatest structural analysis app, we are actively improving it and adding new functionality. It receives more frequent updates than other tiers of our software. Other advanced functionality include the ability to directly export to PDF and to save to an external file for backup and sharing. CONTACT We like to hear from you! Please email contact@ketchep.com if you have any issues, questions, or comments.

About

PVVS

Features
Read full description

成型鏡板+円筒胴による容器の容積、表面積、設定水位における容量を求めることができるアプリです。 容器の板厚と素材の比重を設定して容器の空重量を求めることもできます。また、溶接構造による容器の場合は3点のパーツ(上部鏡板A,胴板L,下部鏡板B)に分けて各部毎に板厚、フランジ長さを個別に設定し重量、容量を精査できます。 さらに、簡易強度計算機能もあり、設計圧力(内圧のみ)と使用材料の許容引張応力(設計温度による)から計算板厚を求めることもできます。 このアプリケーションソフト(PVVS)のご使用は全て利用者の自己責任において行うものとします。 本アプリケーションソフトを運用した結果生じた損害について、作者は一切の責任を負わないものとします。

Screenshots

Deflection Pro4 screens
PVVS4 screens

Verdict

The call

The clearest difference is price: PVVS at Free against Deflection Pro's $19.99. Deflection Pro's advantage is ads (none vs shown). On update cadence, in-app purchases, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

PVVS is free to download; Deflection Pro costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Deflection Pro ships an update every 5 weeks, PVVS every 2 months. The most recent releases landed on September 17, 2026 and September 8, 2026 respectively.

Scorecard2 real differences · 8 level
Deflection Pro versus PVVS: the parameters behind the verdict, then further details
ParameterDeflection ProPVVS
Price$19.99Free — better
Rating4.7 (16 ratings) — better—
Positive reviews69.2% of reviews—
Number of ratings16 — better—
Update frequencyEvery 5 weeks — betterEvery 2 months
AdsNo — betterYes
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size163 MB7 MB
Age rating4+4+
DeveloperBlue Ketchepsigeyosi kanenishi

In-app purchases

None

Deflection Pro

No in-app purchases

None

PVVS

No in-app purchases

Questions

Is Deflection Pro free?
Deflection Pro costs $19.99, with no in-app purchases.
Is PVVS free?
PVVS is free to download, with no in-app purchases.
Do Deflection Pro or PVVS have ads?
PVVS shows ads; Deflection Pro does not.
Which is updated more often, Deflection Pro or PVVS?
Deflection Pro ships an update every 5 weeks, and PVVS every 2 months. Most recently, Deflection Pro was updated on September 17, 2026 and PVVS on September 8, 2026.

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