RentReducer vs Finanzplaner Mobile
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RentReducer
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Did the Swiss reference rate drop? You may have a right to a lower rent. RentReducer shows you in two minutes whether you have a claim, and mails the right letter straight to your landlord. RentReducer is an independent app and is not affiliated with, operated by, or endorsed by the Swiss Confederation, any canton, public authority, or court. All official data and legal references used in the app are listed individually below under "Sources and Disclaimer". ONE TAP TO SEND. THE APP DOES THE REST You tap Send once. The app generates the reduction request with your signature and has it printed and sent via Priority Mail (A-Post) by our Swiss postal partner. If no answer comes, the app reminds you after 30 and 60 days, and you fire the right follow-up letter from the app: reminder, document request, or conciliation. No printer, no stamps. WHAT THE APP DOES - Check your claim in 2 minutes. Calculation under federal law (Art. 270a CO + VMWG art. 13). Reference rate taken 1:1 from the official table of the Federal Office for Housing (FOH/BWO), inflation 1:1 from the FSO/BFS CPI series, no estimates. (Sources cited below.) - Generate + send automatically. PDF with your finger-signature, Priority Mail (A-Post) included. Registered with tracking optional (+ CHF 7.90). - Push when the letter is handed to Swiss Post. With registered mail, also on the day of delivery, so you know when the response deadline starts. - Auto-reminders after 30 and 60 days. At every reminder, one-tap follow-up: reminder, document-request and conciliation letter all go straight from the app. For the conciliation letter you upload your lease as a photo, the app attaches your prior letters and mails the bundle as registered mail to the conciliation authority. CHF 6.90 per follow-up, plus CHF 7.90 registered for the conciliation letter (or download it as Word and mail it yourself). - Multiple tenants? Each tenant signs with finger in the wizard, all names appear on the letter. - Free rate alert. When the reference rate drops, you get a push, and can file again. PRIVACY Your data stays on your device. No account, no central database. For mailing, your address and PDF go encrypted to our Swiss postal partner, nothing else. PRICE - Free to download. Claim check + rate alert cost nothing. - Letter + Priority Mail (A-Post): CHF 9.90 to 29.90, scaled to your monthly savings (~30%). - Registered with tracking: + CHF 7.90. - Follow-up letter: CHF 6.90 each (reminder and document-request via Pingen). Conciliation letter: CHF 6.90 + CHF 7.90 registered with lease photo and letter history attached, or download as Word and mail it yourself. Get back what you're owed. SOURCES AND DISCLAIMER All official data and legal references used in the app come from the following official Swiss sources: - Mortgage reference interest rate: Federal Office for Housing (FOH/BWO), https://www.bwo.admin.ch/de/entwicklung-referenzzinssatz-und-durchschnittszinssatz - National Consumer Price Index (CPI): Federal Statistical Office (FSO/BFS), https://www.bfs.admin.ch/bfs/en/home/statistics/prices/consumer-price-index.html - Tenancy law, Swiss Code of Obligations (CO art. 269 ff., in particular art. 270a): https://www.fedlex.admin.ch/eli/cc/27/317_321_377/en - Ordinance on the lease and farm lease of residential and commercial premises (OBLF, art. 13): https://www.fedlex.admin.ch/eli/cc/1990/835_835_835/de (German version is the official text) - Conciliation authorities for tenancy matters: FOH directory, https://www.bwo.admin.ch/bwo/de/home/mietrecht/schlichtungsbehoerden.html - Calculation verification reference: Rent calculator of the Zurich courts, https://www.gerichte-zh.ch/themen/miete/mietzinsgestaltung/mietzinsrechner.html RentReducer does not provide legal advice and is not a substitute for an attorney. For legal questions, contact a cantonal tenants' association or a lawyer of your choice.
Finanzplaner Mobile
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Finanzplaner hilft dir, deine privaten Finanzen einfach, modern und übersichtlich zu organisieren. Erfasse Einnahmen und Ausgaben, ordne Buchungen passenden Kategorien zu und behalte deine monatliche Entwicklung jederzeit im Blick. Der integrierte KI-Finanzassistent basiert auf Gemini 2.5 Flash. Er unterstützt dich bei der Analyse deiner Finanzen, beantwortet Fragen und hilft dir dabei, Buchungen, Budgets, Sparziele, Daueraufträge, Verträge und Kategorien schneller zu erstellen und zu verwalten. Verwalte außerdem wiederkehrende Kosten, Kredite und Sparziele an einem zentralen Ort. Mehrere Währungen, digitale Belegspeicherung und exportierbare PDF-Monatsübersichten erleichtern dir die tägliche Finanzplanung. Deine Finanzdaten werden grundsätzlich lokal auf deinem Gerät gespeichert. Optional kannst du die iCloud-Synchronisation aktivieren, um deine Daten auf deinen Apple-Geräten verfügbar zu halten. Dank umfangreicher Sprachunterstützung kannst du Finanzplaner in zahlreichen Sprachen verwenden. Ideal für alle, die ihre Einnahmen, Ausgaben und finanziellen Ziele klar, intelligent und unkompliziert verwalten möchten.
Screenshots
Verdict
The clearest difference is update cadence: Finanzplaner Mobile at every 3 days against RentReducer's weekly. RentReducer's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. RentReducer sells 10 one-off in-app purchases and Finanzplaner Mobile sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
RentReducer ships an update weekly, Finanzplaner Mobile every 3 days. Both last shipped on October 10, 2026.
| Parameter | RentReducer | Finanzplaner Mobile |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 57 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Manuel Weingartner | Esat Arslan |
In-app purchases
RentReducer
- Follow-up: documents$7.99
- Follow-up: conciliation$7.99
- Follow-up: reminder$7.99
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- Reduction Letter CHF 9.90$9.99
- Registered mail upgrade$9.99
- Reduction Letter CHF 14.90$17.99
- Reduction Letter CHF 19.90$22.99
- Reduction Letter CHF 24.90$29.99
- Reduction Letter CHF 27.90$29.99
- Reduction Letter CHF 29.90$34.99
Finanzplaner Mobile
- Kaffee$0.99
- Gipfeli$1.99
- Feierabendbier$2.99
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- Pizza-Pause$5.99
- Entwickler-Held$9.99
Questions
Is RentReducer free?
Is Finanzplaner Mobile free?
Do RentReducer or Finanzplaner Mobile have ads?
Which is updated more often, RentReducer or Finanzplaner Mobile?
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