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App Builder Index

Jonas Kessler

@jonaskessler

Engineering manager. I care about what happens on the day the vendor raises prices.

Joined
20 October 2025
Location
Zurich
Reviews
3
Average rating given
4.0

Reviews

  1. AppMaster logoAppMaster9 August 2026

    The only no-code tool that answered my continuity question

    I ask every vendor the same thing: what happens to us if you fail. This is the only one whose answer is a compiled Go binary and the source it came from, sitting on our own servers. That changed the conversation with our board entirely. It is expensive and the interface is grim, and I do not care.

  2. Manus logoManus29 July 2026

    Brilliant demonstration, difficult procurement

    The capability is real and my engineers were impressed. I could not get a cost model I was willing to sign, because consumption varied by a factor of four across similar tasks. There is also no durable project to return to and iterate on, which makes it a service rather than a platform.

  3. Bubble logoBubble18 July 2026

    Capable, and I read the exit clause carefully

    We run two internal products on it and they work. My reservation is structural rather than technical: there is no export, so our continuity plan is a documented rebuild estimate that I refresh annually. Everyone signing off on Bubble should do that exercise before, not after. The product itself has earned its place.

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Jonas Kessler (@jonaskessler) | App Builder Index