Dr. Hahn Instructions vs CentraDesign Lite
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Dr. Hahn Instructions
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Dr. Hahn has launched this app to provide its customers with all adjustment instructions as videos in a user-friendly manner. The right instructions can be found quickly thanks to the app's intuitiveness and ease of use. All instructional videos for an accurate adjustment of Dr. Hahn hinges for metal and PVC doors are included, in particular different versions of 2-piece and 3-piece hinges, as well as fastening options with or without KT-Fix. The videos explain in detail every work step required for making height, horizontal and sealing pressure adjustments. Once a video is downloaded, it can be used offline at any time.
CentraDesign Lite
This utility app calculates casing standoff and clearance for oil and gas wells. It considers various factors like pipe sizes, inclination, buoyancy, and side force. Users can visualize casing deflection in 2D and 3D.
- Bow spring and rigid centralizer database
- Centralizer and casing database
- Calculates casing standoff and clearance
- Considers buoyancy and side force
- 2D and 3D casing deflection view
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CentraDesign Lite is condense version of CentraDesign, our centralizer placement software. CentraDesign Lite includes bow spring and rigid centralizer and provides centralizer and casing database. This app calculates one span of casing standoff and clearance, using any combination of hole, pipe sizes and inclination angle. It also takes buoyance and side fore effect into consideration. The output results include the standoff and clearance at centralizer and mid span. Users are also able to view the casing deflection in 2D and 3D view.
Screenshots
Verdict
The clearest difference is iOS requirement: CentraDesign Lite at 8.0 against Dr. Hahn Instructions's 11.0. 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.
Dr. Hahn Instructions ships an update every 15 months, CentraDesign Lite every 21 months. The most recent releases landed on October 5, 2026 and October 20, 2026 respectively.
| Parameter | Dr. Hahn Instructions | CentraDesign Lite |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 15 months — better | Every 21 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 11.0 | 8.0 — better |
| Further details — not scored | ||
| Size | 18 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Team Stiefelhagen Werbeagentur GmbH | Pegasus Vertex, Inc. |
In-app purchases
Dr. Hahn Instructions
No in-app purchases
CentraDesign Lite
No in-app purchases
Questions
Is Dr. Hahn Instructions free?
Is CentraDesign Lite free?
Do Dr. Hahn Instructions or CentraDesign Lite have ads?
Which is updated more often, Dr. Hahn Instructions or CentraDesign Lite?
Other comparisons
