Build shape
German tenant bill review app
German bill review app
NeiboCheck
A review app for German tenants to enter utility bills and inspect unusual costs and deadlines.
GermanyRulesDeadline
Product brief
It mattered more to give tenants a clear review surface than to imitate full legal automation.
NeiboCheck is a review app for German tenants to enter Nebenkostenabrechnung data and inspect unusual charges and deadlines. It is positioned as decision support, not as legal automation.
The repo shows building and bill entry, rule-based validation, summaries, a deadline engine, year-over-year comparison, a legal center, and reminders. It turns a dense rental domain into a readable mobile flow.
Scope
Problem
Problem
The product needed to stay clear and useful without pretending to replace legal judgment.
Implementation
I built building and bill entry, rule-based review, summaries, a deadline engine, year-over-year comparison, a legal center, and reminders in Flutter.
Best fit
This fits products that need to turn rule-heavy domains into accurate decision-support tools.
Technical structure
Product evidence
Primary stack
Flutter · Riverpod · GoRouter
Data & sync
SharedPreferences · Firebase · Cloud Functions
Operational surface
AdMob · In-app purchase · deadline reminders
Stack
App client
Flutterhooks_riverpodflutter_hooksgo_router
Domain logic
rule-based reviewdeadline engineyear comparisonsummary cardsLegal Center
Operations and integrations
Firebase AuthGoogle Sign-InCloud FirestoreCloud Functionslocal notificationsAdMobin_app_purchase
Integrations
Firebase AuthGoogle Sign-InCloud FirestoreCloud FunctionsLocal notificationsAdMobGoogle Play Billing
Screens
Product evidence
App
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