Solve a concrete question
Free · no account- complete individual result
- explanation, assumptions and sources
- local working state, print and export where useful
Never an artificially weakened light version.
FREE → PLUS · WITHOUT AN ARTIFICIAL PAYWALL
The solution stays free. Only genuine continuity may become paid.
At relaunch there is no subscription and no hidden result lock. Plus is only built and priced when real usage shows families repeatedly need profiles, collaboration, sync or reminders.
VIER KLARE ROLLEN
No product needs to cannibalise another
The boundary follows the type of value: instant answer, recurring workflow, owned offline download or personal service.
Remove recurring work
Later beta · price open- family profiles instead of re-entry
- multiple plans, versions and templates
- share, sync and receive reminders
Plus sells time saved across sessions, not the answer.
Own an offline product
One-time purchase · download- curated bilingual travel products
- local HTML file independent of the website
- substantial working file or bundled workflow
Linking from the tools only after live-link and differentiation review.
Assess an individual trip
Personal service- route, stops and pace in context
- complex trade-offs and feasibility
- human follow-up and recommendations
The tools prepare the bounded question; Travel takes the individual case.
PLUS-BENEFITS
What would genuinely be additional later
No exclusive calculator. Instead, a shared layer across several already useful free tools.
One family profile
Enter ages, roles and recurring preferences once and deliberately reuse them in selected tools.
Projects, not one session
Save, duplicate and compare multiple weeks, trips, parties or routines.
Family sharing
One plan with clear roles instead of screenshots and conflicting file versions.
Useful reminders
Only for real deadlines and agreed tasks—controllable, removable and exportable.
Cloud plus control
Sync with export, deletion, roles and transparent privacy controls.
STOP-REGEL
No price before the value is proven
Measure for 6–8 weeks
Completion, return use, tool chains and save intent.
At least three recurring workflows
Not just clicks, but repeated genuine use.
Small Plus beta
Only then test scope, willingness to pay and a fair price.
JETZT
Find the right tool →Use the complete tools for free
Each use shows better than a theoretical price which continuity families actually need.