d-bye

OutSystems is expensive and heavy. Is there a lighter alternative?

OutSystems production contracts start around $36,300/year, and pricing beyond that is a custom quote — hard to predict, and the rollout itself takes real time to learn (Mendix sits in a similar range, starting at $998/month). d-bye shares the same spec-first idea — generate code from a model — but you can start free, self-serve, from a template today.

Where OutSystems and Mendix start to feel heavy

Pricing is high and hard to predict

OutSystems production contracts run around $36,300/year as a baseline, and anything beyond that becomes a custom quote tied to user counts, application objects, and servers. Mendix starts at $998/month for one app, or $2,495/month for unlimited apps — not a price range a small team tries on a whim.

Rollout and learning take real time

Both platforms are built for large-scale enterprise development, with their own development environments and governance models to learn. The distance from “sign up” to “something is actually running” is long — too heavy for a small team or an individual to just try out.

Generated code exists, but portability is limited

OutSystems generates .NET/Java-equivalent code, but with heavy reliance on its own proprietary runtime and limited model portability. Mendix uses its own visual modeling language, which doesn’t export to standard code. Either way, platform dependence persists long-term.

How d-bye differs — the same spec-first idea, but light and self-serve

d-bye shares the same core idea as OutSystems and Mendix: generate code from a model, not write it by hand. What’s different is the distance and the cost to get started.

  • Stack: React/TypeScript front end, backend (multi-language), database schema (DDL). See supported languages & databases
  • A free Sandbox, no credit card, lets you try a template as a working preview immediately — no procurement meeting required.
  • Export everything as a ZIP. No dependency on a proprietary runtime — it runs on any infrastructure.
  • Foreign keys, multi-step approval flows, and role-based permissions are modeled in the spec, and every generation must pass type checks and a compile check before export.

If OutSystems and Mendix are platforms large enterprises roll out with a multi-year budget, d-bye is the entry point for teams without that scale or budget who want to build a real business system starting today.

Comparison

OutSystemsd-bye
PricingOutSystems: $36,300/yr+ (custom quote beyond that) / Mendix: $998/mo+Sandbox $0 / Personal ¥2,980+ (full export)
Distance to try itRequires procurement, a quote, a contractPreview a template instantly, no credit card
Portability of generated codeHeavy reliance on proprietary runtime, limitedFull source exported as a ZIP (no runtime dependency) See supported languages & databases
Business features (FK, approvals, roles)Built in the model, with large-scale governanceModeled in the spec (IR) and generated
Intended scaleLarge enterprise core-system modernizationSMB to mid-market teams building in-house
Enterprise governance (large-scale ALM, audit trail, etc.)Deep, with a long track recordNot yet supported (a future candidate)

Pricing and specs change. Please check each vendor’s official site for the latest (checked 2026-07).

Which should you choose? (an honest split)

OutSystems/Mendix fit when: you already have a multi-year budget and an enterprise rollout org; a large-scale system modernization needs deep governance and a proven track record; a dedicated team will run it long-term.

d-bye fits when: you don’t have that budget or org yet, but want to replace an Excel-, email-, or paper-based process with a real system fast; your engineers want to hold the code as an asset; you want to see something working for free before deciding.

If unsure, try the free Sandbox first: open a template as a working preview and check whether the generated code (front end, back end, DDL) is detailed enough for your actual requirements.

FAQ

Can OutSystems or Mendix export code?
OutSystems generates .NET/Java-equivalent code but relies heavily on its own proprietary runtime. Mendix uses its own visual modeling language and doesn’t export to standard code. d-bye exports your full source code (screens, APIs, and database) as a ZIP that runs without d-bye.
Is d-bye a full replacement for OutSystems or Mendix?
Not for deep enterprise governance — large-scale ALM, audit infrastructure, and a long deployment track record are areas OutSystems and Mendix are ahead on today. For SMB to mid-market teams replacing an Excel-, email-, or paper-based process with a real system, d-bye is a strong option on speed to start and cost.
How different is the pricing?
OutSystems production contracts run around $36,300/year with custom quotes beyond that; Mendix starts at $998/month per app. d-bye is free for design and preview (Sandbox); full download requires Personal (¥2,980/month, per seat) or higher. Check official sites for the latest.
Can a team without engineers use it?
d-bye is for teams whose engineers want to own the code as an asset. The spec (IR) model is most intuitive for engineers and IT staff.

Next step

  • Try a template as a working preview for free → generate the code if you like it
  • Start from approval workflow / inventory / sales order / attendance templates
  • Full download requires Personal or higher (design and preview are free, no credit card)