🔍 Read the full analysis: A Brand Relaunch On A Two-Day Timeline: Gewerkton And AI Agents on ThorstenMeyerAI.com

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Gewerkton, a construction-site documentation tool built in Iffeldorf, Bavaria, says it replaced the design across its web and phone apps, Studio, icons and multilingual website on Oct. 2–3, 2026, using AI coding agents for implementation, as detailed in the original analysis. Founder Thorsten Meyer approved the written plans, reviewed the results and released each part; the company describes the two days as the execution period, not the time spent developing the design from scratch.

The relaunch, called HORIZON, changed the web app, the iPhone and Android app, Studio, all 26 product icons and a website with 529 pages in 40 languages. Gewerkton says the website also received a new opening section featuring real product screens. It reports uploading 1,583 files without an error. An earlier account of Gewerkton’s AI-agent approach provides additional context.

In the web app, 281 hard-coded colour values were moved to design tokens, with 11 exceptions retained, and 47 cards were restyled. The phone app moved to version 0.5.0, while Studio received the new design in light and dark modes. The 26 icons were re-rendered in Blender using cobalt and navy.

The website relaunch included 228 AI film runs for five regions, 222 with a regional version, and eight help videos. These figures and the account of the work come from Gewerkton’s publisher, which disclosed that it builds the product itself. They have not been independently verified.

Human Checks Shaped the AI Relaunch

The account offers a specific example of how a small product team used coding agents for a broad release while retaining human control over decisions and publication. The agents worked in a separate code copy and branch; according to the company, nothing was merged or delivered until Meyer released that part. Paid film reruns also required his explicit approval.

The reported problems show why the workflow depended on more than automated tests. A visual review found that white tiles behind icons covered nearby labels in dark mode, a defect the tests had missed. In the films, a colour-detection mask failed to catch some red areas in shadow or warm lighting. Those cases were found by inspecting footage, and Gewerkton says it corrected files and temporarily substituted regional versions where needed.

For readers evaluating claims about AI-assisted software work, the distinction matters: Gewerkton reports a rapid implementation, but also describes human planning, review, release gates and rework. The account does not establish that the same timeline or results would apply to other products or teams.

The Design Work Predated October

Gewerkton says an interim design draft dated Sept. 26 informed the relaunch. Its two-day description covers the implementation from an approved plan to the live website on Oct. 2–3, rather than the full design process. The plan listed open decisions, presented options and recommendations, and was approved by Meyer as recommended.

The company describes using Codex and Claude coding agents, with Meyer directing the work. Some actions remained explicitly human-controlled. Apple blocked the iPhone build until the latest Program License Agreement was accepted, a step only Meyer could take. The company says deviations from the plan were logged and the conservative option selected.

One documented adjustment concerned colour contrast. Cobalt in the initial palette measured 4.38:1 against the light background, below Gewerkton’s stated working standard of 4.5:1 under WCAG 2.1 AA. The colour was darkened to 4.80:1 before release, according to the company.

““Gewerkton is built by our publisher — we build it ourselves and write down what we learn.””

— Gewerkton’s disclosure

Independent Verification Is Limited

The information available is Gewerkton’s own account, and independent verification of its timelines, test results and production figures is not provided. The company reports 853 of 853 phone-app tests and 2,158 of 2,158 Studio tests passing, but also says eight web-app tests failed across seven files. It says six files fail the same way on the main branch and another failure depends on test order; those explanations have not been independently checked.

The source material ends while describing film costs, at “about 134 dollars actual,” without stating the remainder or defining the cost basis. A complete film-production cost cannot be established from that figure. It also does not give a full breakdown of the 228 runs, the cost of the wider relaunch, or independent measures of how the redesign affects users.

Gewerkton says its Android test found five major issues, none blockers, but the available account gives detail on only one: camera-screen buttons breaking across words on a Pixel 10a. It says all five were scheduled for version 0.5.1; whether that release has shipped is not stated.

Version 0.5.1 and Follow-Up Fixes

According to Gewerkton, the five findings from the Android test were scheduled for version 0.5.1. The company’s account does not confirm a release date or say whether the update has since been published. Further reporting would need to establish whether the listed interface issues were corrected in that version and whether additional testing found other problems.

The company also says nine regional film runs were reshot after its visual review and passed another check. It does not provide a complete final accounting of film costs or clarify the status of every initial failure and substitution. Those figures, along with independent checks of the live apps and site, remain the main points to verify after the relaunch.

Key Questions

What did Gewerkton change in the relaunch?

Gewerkton says its HORIZON design was applied to the web app, iPhone and Android app, Studio, 26 icons and 529-page website, which is available in 40 languages.

Was the redesign created entirely in two days?

No. Gewerkton says an interim design draft existed on Sept. 26. The two-day period refers to implementing the approved plan and taking the website live on Oct. 2–3.

What role did AI agents play?

The company says Codex and Claude agents carried out implementation from written plans in a separate code branch. Founder Thorsten Meyer approved the plan, reviewed results and released each part.

Were there problems during the relaunch?

Yes. Gewerkton reports icon tiles that obscured labels in dark mode, missed red areas in some films, and film-generation failures. It says visual inspection and subsequent fixes addressed identified issues; its account also lists web-app tests that remained failed but were not caused by the redesign.

How much did the film work cost?

The available source text begins to give an actual figure of “about 134 dollars” but ends before completing the cost statement or explaining its basis. A full production-cost total cannot be confirmed from the information provided.

Source: ThorstenMeyerAI.com