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56
BU Score
Solid

Durchbiegung

4.6 ✍️ Editor
✍️ bumetric analysis

Durchbiegung is an iOS app from Blue Ketchep in the Productivity category, currently rated 4.6★ across 115 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.

Our BU Score puts it at 56: Solid (established niche player). For a Productivity app, that means established niche player.

Track changes month-over-month in the Performance section below: live snapshot history and revenue forecast included.

📊 Performance Tracking LIVE

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Rating
Reviews
Forecast Revenue / mo
Snapshots tracked
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since first record
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💰 Forecast Revenue / mo

MODEL
Revenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.
🔬Forecast Breakdown — Why This Estimate?Top 5 of 5 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
Paid app ($0.00)METRIC
+$2,800
Excellent rating (4.6★)METRIC
+$2,200
Mature app (12y old)METRIC
+$1,500
Multilingual (13 languages)METRIC
+$1,500
Early-stage install base (115 ratings)METRIC
+$400
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)

📈 Reviews Growth

LIVE
Cumulative review count from first BU snapshot. Each point = a tracked update.

⭐ Rating Trend

LIVE
Average rating evolution. Updates with each new review batch.

🗓️ Snapshot Timeline

HISTORY
Each bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →
💾 160 MB🔞 4+📱 iOS 15.0+🔖 v11.0.0🔄 updated 1y ago🌐 NL, EN, FR, DE, IT +8📂 Productivity💰 Paid🚀 Launched 2013 (12y old)

📝 About this app

Deflection is a powerful, versatile calculator for beams, 2D trusses, and 2D frames. The interface is simple and intuitive, and the graphical output is state-of-the-art. In addition to reaction, shear, bending moment, and deflection results, Deflection also computes internal shear and bending stress along the cross section and along the beam.

2D FRAME AND TRUSS EDITOR

The 2D editor is seamlessly integrated with the beam editor. Draw arbitrary frame and truss structures and apply loads and constraints using the same simple interface as for beams. You can visualize results directly within the 2D editor, or you can select a beam and get additional insights.

INTERNAL STRESSES

Obtain internal bending and shear stress diagrams in addition to shear, bending, and deflection diagrams. The internal stresses can be visualized along the length of the beam as well as along the vertical axis of the cross section using the beam editor.

CROSS SECTION EDITOR

Edit built-in cross sections. Moment of inertia and area values are automatically calculated and applied to the rest of the beam calculations.

MORE FEATURES

• The built-in database contains more data for your reference and convenience.
• Apply beam self-weight optionally
• Unlimited design files
• Quick-start templates

CONTACT

We like to hear from you! Please email contact@ketchep.com if you have any issues, questions, or comments.

🆕 What's New · v11.0.0

Introducing frame and building benchmark examples and extensive improvements throughout the app!

• NEW: Examples gallery in the home screen, including new examples for frames and buildings. Click on the button with a book icon to open it.

• NEW: The new eyedropper button in the frame editor allows you to copy the material and cross-section from one beam to another. To use it, select a beam, press the eyedropper button, and then select another beam to copy from.

• FIXED: Cross section stress analysis for angles and zees is now performed along their principal axes rather than geometric axes.

• IMPROVED: Numerous performance, stability, layout, and interaction enhancements in the 2D editor, especially when working with large models.

Thank you for your continued support and feedback! Reach us at contact@ketchep.com with any questions or comments.

Profile & Insights

Everything we know — and don't — about this app and its company.

Identification

App name
Durchbiegung
Developer
Blue Ketchep
Bundle ID
com.glerok.shafter
App Store URL
Open in App Store
Category
Productivity
Content rating
4+
Languages
NL, EN, FR, DE, IT, JA, KO, PT, RU, ZH, ES, ZH, TR

Company

Website
www.blueketchep.com
Tagline
Not found
Description
Not found
Founded
Not found
HQ / Address
Not found
Employees
Not found
Logo
Not found

Revenue

Verified revenue / mo
Not found
AI revenue estimate / mo
Not found
AI annual estimate
Not found
ML model estimate / mo
$86/mo
Top-grossing rank
Outside top 100 in US Productivity
All-time revenue
Not found
Pricing
Not found

Founder

Name
Not found
X / Twitter
Not found
LinkedIn
Not found
GitHub
Not found
X followers
Not found
Public statements
Not found

Funding

Total raised
Not found
Last round
Not found
Investors
Not found
Crunchbase
Not found
AngelList
Not found

Press & Links

Articles found
Not found
Listed on
Not found
Blog
Not found
Press / News
Not found

Contacts & Socials

Socials
Not found
Email
Not found
Phone
Not found
Contact page
Not found
About page
Not found
Recent App Store Reviews17 latest · avg 4.06★ · 47.1% 5★ · 5.9% 1★
5★
8 (47%)
4★
5 (29%)
3★
2 (12%)
2★
1 (6%)
1★
1 (6%)
+0 ratings/week
Praise: great ×6 love ×3 amazing ×2 favorite ×1 best ×1Complaints: bug ×1
Top positive
★★★★★ So Far So Good!
Just downloaded this and started playing around with it. Quite amazing how the graphics work. Nice that you can specify a structural steel beam shape.…
★★★★★ Nice app
Very good…
Top negative
★☆☆☆☆ Poor user interface does not hold settings.
Just using this app is a challenge. When I used ft-lb-in settings they always reverted to metric which was very frustrating. You have to know everything in the calculations before starting. There is no table of properties for materials or…
★★☆☆☆ Structural Review and Shortcomings
Love the app, great visual interface...but why not 50 and 65 KSI steel? Today almost all structural steel is grade 50 KSI....this application is now limited to 36 KSI steel design. To make application useful it needs that upgrade.…
📈Ratings growth115 ratings+11400% lifetimeShow 3-year history estimate ▾Jul 2013Mar 2024May 2026
Tracked (19 weeks) Pre-tracking estimate (37 weeks) · model-based, ±5% noise · anchored to release date and current value
🌍Geographic ReachNot ranked
This app is currently outside the top 100 grossing in all 9 countries we monitor (US, UK, DE, FR, JP, CA, AU, BR, IN). Niche or new apps often launch this way — popularity rankings appear once daily revenue clears the regional threshold.
Profile is built from iTunes Lookup + developer site scrape + ML revenue model. Empty fields show "Not found" — additional sources (Crunchbase, X, IndieHackers, Acquire.com) coming.

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Full revenue analysis
Read the article-style breakdown for Durchbiegung: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
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