🔍 Read the full analysis: Gewerkton’s AI-Assisted Brand Rebuild: A Two-Day Relaunch on ThorstenMeyerAI.com

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Gewerkton, a construction-site documentation tool built in Iffeldorf, Bavaria, says it replaced the design of its web app, iPhone and Android apps, Studio, 26 icons and 40-language website on Oct. 2–3, 2026. Its publisher, Thorsten Meyer, says AI coding agents carried out the implementation from plans he approved, while he reviewed and released each part. The original account of the relaunch describes both its scope and defects that required human inspection and follow-up work.

The redesign, named HORIZON, changed the web app, mobile app version 0.5.0, and Studio in light and dark modes. Gewerkton says the web update replaced 281 hard-coded colour values with design tokens, retaining 11 exceptions, and restyled 47 cards. All 26 icons were re-rendered in Blender using cobalt and navy. The website covers 529 pages in 40 languages and received a new opening section featuring product screens.

The company says 1,583 website files were uploaded without an error. It also reports 228 AI film-generation runs for five regions: 222 had regional versions, alongside eight help videos. The two-day description refers to execution from an approved plan to the live website, not a design process begun from scratch that week: an interim design draft dated Sept. 26 was used.

Meyer says the agents worked in a separate code copy and branch. He approved the plan, inspected results and authorized releases; work was not merged or delivered until he released each stage. Films showing the updated interfaces were held until he approved the screens on Oct. 3, and paid film reruns also required his explicit approval. Apple’s developer agreement presented a separate human gate: the iPhone build could not proceed until Meyer accepted an updated Program License Agreement.

Human Review Shaped the Release

The relaunch offers a case study in how a company says it used AI coding agents for a broad software and brand update without handing them final release authority. The reported workflow divided implementation from approval: agents executed written plans, while Meyer made decisions, checked the output and controlled delivery. That distinction matters to readers evaluating claims that AI can carry out a product redesign quickly; the source describes a human-managed process, not an autonomous release.

The reported defects also show why passing software tests does not settle every quality question. Meyer says an icon treatment obscured labels in dark mode, an issue found by looking at the interface rather than by a test. Automated colour masking also missed red details in generated films, while some attempted corrections damaged other image features. The account suggests that visual inspection remained a substantial part of the work, particularly for generated media.

Gewerkton’s figures are the publisher’s own account of its project, not an independent audit or a controlled comparison with a conventional redesign. They give readers concrete details about scope, test results and reported failures, but do not establish how much time or money the AI workflow saved overall.

From Draft to Live Product

Gewerkton is built by Thorsten Meyer in Iffeldorf, Bavaria. The publisher disclosed that it owns and builds the product and is documenting the process. Meyer says he directs a fleet of AI coding agents, including Codex and Claude. The published account frames the redesign as execution against a written plan, rather than a prompt asking an agent to independently redesign the product.

The plan listed open decisions, options and recommendations; Meyer approved the recommendations. A design draft from Sept. 26 informed the work, before implementation and rollout on Oct. 2 and 3. The company says its working contrast standard follows WCAG 2.1 AA: when the planned cobalt reached 4.38:1 against a light background, below its 4.5:1 threshold, it darkened the colour to 4.80:1.

According to the publisher, the web app was checked across 200 views, four languages, three screen widths and light and dark modes. The phone app passed 853 of 853 tests and Studio passed 2,158 of 2,158. The website passed seven test suites and browser checks across five regions and three widths. These are reported project checks; the source does not provide an independent verification of the results.

“The agents carried out the implementation from written plans. Meyer approved the plans, looked at the results and released each part.”

— Thorsten Meyer, as described in the publisher’s project account

Costs and Follow-Up Still Open

The source provides a film-project cost figure of about $134 in actual costs, but the supplied account ends before giving further detail. It does not state the full cost of the relaunch, including engineering time, subscriptions, computing resources or review work. It also gives no comparison with the cost or duration of a similar redesign completed without AI agents, so the reported speed cannot by itself establish savings.

Some quality issues remain under follow-up. An Android test on a Pixel 10a found five major issues, including a camera-screen button breaking across a word; Gewerkton says none was a blocker and all five were scheduled for version 0.5.1. The account does not confirm when that version will ship or whether each issue has since been resolved.

The project record says eight web-app tests failed across seven files. Gewerkton attributes six files’ failures to the same behavior on the main branch and says another test depends on test order and passes when run alone. The redesign did not cause those failures, according to the account, but did not fix them. Independent confirmation of the test results, film quality and release status is not included.

Version 0.5.1 and Film Checks

Gewerkton’s stated next step is version 0.5.1, which is scheduled to address the five findings from the Android test. The publisher has not supplied a release date, and the account does not say whether the same changes affect the iPhone app.

For the film work, the company says nine regional runs were reshot after Meyer approved them and passed visual review. Ten regional versions containing leftover red were temporarily replaced with the European cut; the account says those changes followed inspection and that nine of the affected runs were later reshot. It does not specify the final disposition of every film version.

The source says production paused after the ninth round of film generation when 38% of jobs were failing, with 208 of 228 runs complete. It reports that the 76 failed jobs were not billed. Future updates could clarify whether the remaining work was completed, how the mobile fixes performed after release and whether Gewerkton will publish fuller cost or quality comparisons.

Key Questions

What did Gewerkton change in the relaunch?

The HORIZON redesign covered the web app, iPhone and Android apps, Studio, 26 icons and a 529-page website in 40 languages. The publisher also reports 228 AI film runs for five regions and eight help videos.

Were the AI agents responsible for approving the release?

No. In the publisher’s account, agents implemented work from written plans on a separate branch. Thorsten Meyer approved the plan, reviewed results and released each part, with additional human approval required for paid film reruns and interface footage.

Did the relaunch take exactly two days from design to completion?

The reported two days cover implementation from an approved plan to the live website on Oct. 2–3, 2026. Gewerkton says an interim design draft dated Sept. 26 was already available, so design did not begin from scratch during those two days.

What problems did the team find?

Visual review found icon tiles that covered labels in dark mode and film recolouring that missed some red details or altered other image features. An Android test also found five major issues, including a button label breaking across a word. The company says all five are scheduled for version 0.5.1.

How much did the relaunch cost?

The supplied project account gives about $134 in actual costs for the film work, but does not provide a complete relaunch cost. It also does not compare the project with a non-AI redesign, so overall savings are not established.

Source: ThorstenMeyerAI.com