FES.APP vs JUMO smartCALC
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
FES.APP
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Welcome to the FES.APP from Fessmann - your ultimate solution for efficient monitoring and control of your Fessmann plants. With the FES.APP, you have full control over the operation of your plants while you can concentrate on your core business. Main functions of the FES.APP: Real-time monitoring of Fessmann plants: The FES.APP allows you to monitor your Fessmann plants in real time. View the current target and actual values of your plants at a glance and keep an eye on the processes. Utilisation display: Record the utilisation of your Fessmann plant in real time. Get a clear overview of the production capacity and performance of your plants. Push notifications: Always stay up to date, no matter where you are. The FES.APP notifies you via push message as soon as your Fessmann plant has completed a fabric programme or a malfunction has occurred. Horn deactivation: In the event of a malfunction, you have the option of deactivating the horns of your equipment directly via the app. This helps to minimise noise pollution and ensure smooth operation. Electrical energy calculation: Track the energy consumption of your installations precisely. The FES.APP calculates the electrical energy for each commodity programme and provides a summed view per day, month and year - either in kWh or in euros. User-defined messages: Create custom messages relevant to your specific needs. The app informs you about these custom events with push notifications. Seamless connection to FES.CONNECT: The FES.APP is seamlessly connected to FES.CONNECT to ensure comprehensive control and monitoring of your Fessmann plants. Use the synergy effects between both platforms for maximum efficiency. The FES.APP from Fessmann offers you a reliable, intuitive and comprehensive solution for monitoring and controlling your Fessmann plants. Optimise your production processes, minimise downtimes and maximise your productivity - all in your hands, thanks to the FES.APP.
JUMO smartCALC
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The JUMO smartCALC app enables fast and precise technical calculations in measurement, control, and automation technology. Intuitive calculators support users in calculating, converting, and evaluating various parameters while taking relevant tolerance classes into account. The app is available for Android and iOS devices. It stores calculation histories and impresses with a simple, practical operating concept. Resistance thermometer calculator: The calculator determines, depending on the selected Pt sensor and connection type (2- or 3/4-wire), the corresponding resistance from the measured temperature and vice versa. It also displays the maximum permissible error in temperature and resistance according to DIN EN 60751 for the selected tolerance class. For the 2-wire connection type, the cable loop resistance as well as the resulting temperature deviation due to line resistance are also considered and displayed. Transmitter calculator: The calculator determines, for temperature and pressure transmitters, the resulting electrical output signal from the selected output signal (e.g., 4โ20 mA, 0โ10 V), the defined measuring range (minimum and maximum values), and the entered measured value (temperature or pressure). This can also be done in reverse, where the corresponding measured value is calculated from the electrical output signal. Common current, voltage, and ratiometric signals are supported. Thermocouple calculator: Depending on the selected thermocouple type (e.g., E, J, K, N, T, R, S, B) and the reference temperature, the calculator determines the potential difference from the measured temperature or, conversely, the temperature from the measured potential difference. In addition, the permissible errors in temperature and voltage according to DIN EN 60584 for the selected tolerance class are displayed. When using the software, our terms and conditions apply. http://agb.jumo.info JUMO smartCONNECT contains components of open source software.
Screenshots
Verdict
The clearest difference is iOS requirement: JUMO smartCALC at 14.0 against FES.APP's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
FES.APP ships an update every 2 months, JUMO smartCALC monthly. Both last shipped on September 18, 2026.
| Parameter | FES.APP | JUMO smartCALC |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Monthly โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 26.0 | 14.0 โ better |
| Further details โ not scored | ||
| Size | 4 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Scherer und Schifano GmbH | JUMO GmbH & Co. KG |
In-app purchases
FES.APP
No in-app purchases
JUMO smartCALC
No in-app purchases









