Nebenkosten-Check
German utility bill checker
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Renting in Germany? Consumer groups report errors in about every second utility bill. Understand yours, check it yourself, and never miss the objection deadline.
Your German utility bill (Nebenkostenabrechnung) arrives — and all you understand is the amount you owe. Nebenkosten-Check is the app for tenants in Germany: understand every line, check the bill yourself, and keep your deadlines. Built for German rental law, fully in English.
UNDERSTAND: THE COMPLETE COST CATALOG
• Every German operating-cost type (§ 2 BetrKV) in plain language: What is this line? May it be charged to tenants at all?
• Plus the classics that show up anyway: administration costs, repairs, bank fees, vacancy costs …
• A typical pitfall for every cost type — from full-service elevator contracts to the cable-TV rule since July 2024
CHECK IT YOURSELF: FORMAL CHECK & TRAFFIC LIGHT
• Free formal check: billing period (max. 12 months), the landlord's 12-month billing deadline, advance-payment comparison — calculated to the day
• Benchmark traffic light (Pro): every line in €/m²/month against nationwide German averages — green, yellow, or "worth a closer look"
• Chargeability check (Pro): spots the classic non-chargeable items instantly
• Scan or PDF import pre-fills your cost lines — recognition runs entirely on device
KEEP YOUR DEADLINES
• Objection-period countdown: 12 months from receipt (§ 556 German Civil Code) — after that, objections are usually excluded
• Reminders 90, 30 and 7 days before the deadline, with a discreet text
• Bill arrived late? The app does the math and explains neutrally what that means
THE TAX BONUS MOST TENANTS NEVER CLAIM (Pro)
• Your bill contains household-related and tradesman services (§ 35a German Income Tax Act): caretaker, cleaning, winter service, garden care, chimney sweep, maintenance
• Nebenkosten-Check sums them up for your German tax return — only stated amounts, never estimates
• Check report as PDF: for your landlord, the tenants' association, or your tax records
PRIVATE BY DESIGN
• No account, no cloud, no upload, no tracking — "Data Not Collected"
• Your housing and cost data stays on your iPhone
Nebenkosten-Check Pro (subscription) unlocks the full check (traffic light + chargeability), the §35a tax extract, the check-report PDF and multiple bills (apartments/years). Free 7-day trial on the yearly plan. Always free: 1 bill, the formal check, the deadline reminder and the complete explainer catalog.
Important: Nebenkosten-Check provides general information and calculation aids for checking your own bill — not legal or tax advice for individual cases. For disputes, contact a local tenants' association (Mieterverein) or a lawyer for German rental law. Benchmarks: German Tenants' Association operating-costs index (billing year 2024).
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The first edition of Nebenkosten-Check:
• The complete German operating-costs catalog (§ 2 BetrKV) in plain language
• Free formal check + deadline reminder (§ 556 BGB, to the day)
• Benchmark traffic light & §35a tax extract (Pro)
• Scan/PDF pre-fill and check-report PDF — 100% on device
The developer, Yusuf Fuat Sarac, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Yusuf Fuat Sarac
- Size
- 1.5 MB
- Category
- Finance
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and German
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Nebenkosten-Check Pro (Year) $28.90
- Nebenkosten-Check Pro (Month) $4.90
- Copyright
- © 2026 Yusuf Fuat Sarac
