JUNG PUMPEN PumpSizer vs Crassus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JUNG PUMPEN PumpSizer
This app helps users select the right wastewater pump for their specific needs. It guides you through defining hydraulic data, medium, and installation location to find suitable pumps and view their performance curves.
- Intuitive pump selection process
- Define application profiles
- Specify hydraulic data, medium, and installation location
- View pump characteristic curves
- Selection list of drainage fixtures
- Multimedia product information
Read full descriptionHide full description
The PumpSizer App is primarily intended for fitters and interested final customers who want to find an appropriate wastewater pump for their desired application based on only a few boundary conditions. The App guides you intuitively through the selection process. Once the hydraulic data, the medium to be conveyed and the planned installation location have been defined, a selection will be made from proper wastewater pumps of the company JUNG PUMPEN. The unit’s characteristic curve as well as the pump’s characteristic curve will be issued mathematically and graphically. Features at a glance: - individual application profiles - wide range of defined properties, types of water and installation locations - selection list of common drainage fixtures (e.g. toilet, washbasin, etc.) - verification of input data and calibration with built-in rules - determining the required flow rate - calculation of the operating points - referral service for pumps - additional multimedia information (product and pipe tables, 3D-animations etc.) - detailed help - memory function The application is offered with a German, English, Italian and Dutch user interface. Note: Please note that you need an internet connection!
Crassus
Read full descriptionHide full description
Crassus is the problem solver for connecting different pipe systems. With the Adapter Finder, our app helps you quickly identify the right adapter for two identical or different pipe systems. On the product pages, you’ll find all relevant information and details (images, dimensions, specifications, videos, and more). The dealer search helps you find a sanitary, building materials, or civil engineering supplier near you. Already trusted by more than 18,000 smart installers! Key Features: - Adapter Finder: Quickly finds the right adapter for connecting identical or different pipe systems. - Dealer Search: Shows sanitary, building materials, and civil engineering dealers and other suppliers near you. - Product Catalog: All Crassus products with images, dimensions, specifications, and detailed information. - Pipe Encyclopedia: Discover over 280 pipe systems with more than 3,500 pipe variants. - Multi-language: German and English. - Display Modes: Light Mode and Dark Mode. - Available for smartphones and tablets.
Screenshots
Verdict
The clearest difference is iOS requirement: JUNG PUMPEN PumpSizer at 7.1 against Crassus's 15.1. On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
JUNG PUMPEN PumpSizer ships an update every 8 months, Crassus every 15 months. The most recent releases landed on October 23, 2026 and October 4, 2026 respectively.
| Parameter | JUNG PUMPEN PumpSizer | Crassus |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (3 ratings) — better | — |
| Positive reviews | 60.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 8 months — better | Every 15 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 7.1 — better | 15.1 |
| Further details — not scored | ||
| Size | 24 MB | 76 MB |
| Age rating | 4+ | 4+ |
| Developer | cybob communication GmbH | Crassus GmbH & Co. KG |
In-app purchases
JUNG PUMPEN PumpSizer
No in-app purchases
Crassus
No in-app purchases
Questions
Is JUNG PUMPEN PumpSizer free?
Is Crassus free?
Do JUNG PUMPEN PumpSizer or Crassus have ads?
Which is updated more often, JUNG PUMPEN PumpSizer or Crassus?
Other comparisons















