Pricing

Pre-paid credits. Pay only for what you analyse — no subscription.

Credits

€1.00 per credit

Buy from 10 to 1,000 credits at a time
40 free credits for every new account, private or commercial
Purchased credits never expire
Use every feature until your credits are used up
14-day money-back on unused credits — see the Refund Policy

Payments are processed by Paddle.com, our reseller and Merchant of Record. Applicable VAT/sales tax is calculated at checkout based on your location; businesses can add a VAT number to receive a VAT invoice. By purchasing you agree to our Terms of Service.

How credits are used

Every AI operation is metered in tokens. You choose the AI model per project; better models use more credits per million tokens.

Model	Credits / 1M tokens	Quality	Best for
Testing	1	52%	Quick trial runs
Basic	14	78%	General code explanation, junior developers
Premium	24	90%	Senior developers and system architects
Master	42	94%	Best available quality

Thanks to extensive source-code preparation we have cut the tokens required by around 80%. 10 MB of source code needs about 1.5 million tokens on Basic and about 3 million on Premium and Master.

Example: 10 MB of source code

Basic

≈ 1.5 M tokens → 21 credits

≈ €21 excl. VAT

Premium

≈ 3 M tokens → 72 credits

≈ €72 excl. VAT

Master

≈ 3 M tokens → 126 credits

≈ €126 excl. VAT

Estimates only. Actual usage depends on the code base and the documentation sections you generate.

What costs credits — and what is free

Analysis runs — imports and re-analyses. Credits are deducted as the AI writes your documentation, so the cost follows the size of the project.
Codebase analysis is optional; it explains every file and therefore costs the most.
An incremental re-analysis bills only the missing work. A complete re-analysis bills the whole project again.
Refreshing a tracked repository with no new commits is skipped and costs nothing.
Free: reading, editing, approving, sharing, downloading, and browsing demo projects.

Every step checks your balance first. If credits run out mid-run, the run stops; top up and re-analyse incrementally — the work already done is kept. Credits Usage in the app lists every top-up and every run with its cost.

Buying credits

Pick 10, 50, 100, 150 or 200 credits, then in steps of 100 up to 1,000.
Pay in a secure Paddle checkout — card, PayPal and local methods depending on your country. Your card details never reach Dev-Doc.
Taxes for your country are shown before you pay. Companies click “Add VAT number” so the invoice is issued in the company’s name.
Credits are added as soon as the payment is confirmed. A checkout you close before paying can be resumed; nothing is charged.

Prefer a quote and an invoice directly from us, or need a larger volume or on-premises deployment?Contact us.

Model differences

Basic uses an AI provider with above-average quality at a reasonable price — good enough for general code explanation and documentation for junior developers.

Premium uses the provider with the highest quality. Choose it if the results should also help senior developers and system architects.

Master is the best model on the market.

Premium and Master deliver significantly better results in:

Depth of risk analysis — how well bugs and risks are identified
Bug identification — catching actual code defects
Edge-case detection — finding “hidden” bugs
Risk assessment — evaluating stability risks such as memory exhaustion
Insight — better architectural context

Language support

Our AI models support all programming languages. We currently see very good results for:

C/C++, C#, Java, JavaScript, TypeScript, Python, Ruby, Kotlin, Swift, Scala, PHP, Go, Rust, COBOL, Visual Basic, Objective-C, Elixir, Fortran, Ada, Pascal, Delphi