Gulf vs Brief Monster
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Gulf
Monitor and control the fill level of your tanks remotely from anywhere in the world. Provides an optimized overview of your tank status. A demo login is available for new users.
- Remote tank fill level control
- Global accessibility
- Optimized tank overview
- Demo login available
- Tank status monitoring
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Gulf - Get in Touch Use the Gulf app as a perfect solution to control the fill level of your tanks. Everytime and everywhere in the world! With this app you have a optimized overview of yout tanks. if you dont have an account already, please use the following demo login or contact us at info@wikon.de .You are welcome! Demo Login: Username: oilmo-demo Password: oilmo-demo
Brief Monster
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An official letter you can't make sense of. A bill that doesn't look right. A hotel room that isn't what you booked. Ask the Monster. Bureaucracy Monster explains complicated German paperwork in plain language, checks for possible errors, and helps you decide what to do next. Upload a document or simply describe your problem. UNDERSTAND A LETTER Take a photo of a letter, official notice, or bill. The Monster explains what it says, what is being asked of you, and which deadlines matter. It flags possible discrepancies and shows you the relevant legal basis. SOLVE A PROBLEM No document needed. Ask what you can do if your hotel has serious shortcomings, an item arrives damaged, or you're considering a rent reduction. The Monster asks follow-up questions when needed, explains your options, and helps you draft a response. ONE MONSTER. MANY EVERYDAY PROBLEMS. • Official letters: understand German administrative language and prepare an objection • Service charges and rent: review bills and assess rental issues • Medical bills: check fee codes, multipliers, and explanations under Germany's GOÄ fee schedule • Purchases and travel: report defects and explore possible claims • Payment demands and debt collection: understand charges and deadlines • Contractors: review quotes, invoices, and defective work • Broadcasting fees: understand notices and possible exemptions GROUNDED IN GERMAN LAW The Monster draws on applicable German laws and relevant court decisions. It explains the basis for its assessment in language you can understand and points out when information is missing or an issue remains unclear. FIND THE WORDS TO REPLY Get a draft for a question, complaint, claim, or formal objection. You review the text and send it yourself in your own name. YOUR DATA Your documents are encrypted and stored in the EU. You can delete documents you've uploaded. Before processing health information, the app asks for your explicit consent. START FOR FREE Your first check is free. Plus gives you full document reviews and tailored reply drafts. Eligible users can try Plus free for three days. After the trial, the selected subscription becomes paid unless you cancel. You can also unlock individual documents without a subscription. Prices and terms are shown before purchase in the App Store. Bureaucracy Monster provides automated information and draft texts. It does not replace individual legal, tax, or financial advice. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms: https://briefmonster.de/terms Privacy: https://briefmonster.de/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: Gulf at none against Brief Monster's 2. Gulf also leads on iOS requirement (12.0 vs 16.4). Brief Monster's advantage is update cadence (weekly vs every 8 months). On price, ads 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. Brief Monster sells 2 in-app purchases, starting at $11.99 per month. Gulf asks for nothing beyond the download.
Gulf ships an update every 8 months, Brief Monster weekly. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.
| Parameter | Gulf | Brief Monster |
|---|---|---|
| Price | Free | Free |
| Rating | 2.8 (4 ratings) — better | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 8 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 9 MB | 101 MB |
| Age rating | 4+ | 4+ |
| Developer | Wikon Kommunikationstechnik GmbH | multiangular UG |
In-app purchases
Gulf
No in-app purchases
Brief Monster
- Brief Monster PRO3 Days trial$11.991 Month
- Brief Monster PRO3 Days trial$79.991 Year









