Met Tech Expo vs CalypsoSpray
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Met Tech Expo
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The Meteorological Technology World Expo app is your essential guide to the world's leading event for meteorological, hydrometeorological and environmental monitoring technologies. Explore the exhibitor list, browse the conference programme, plan your visit, and stay up to date with the latest sessions, speakers, networking opportunities and event announcements - all in one place.
CalypsoSpray
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CalypsoSpray helps farmers, agronomists, and spraying professionals make better decisions before and during field applications. The app connects to compatible Calypso sensors via Bluetooth and displays real-time environmental data, including wind, temperature, and humidity. This helps users assess whether conditions are suitable for spraying and reduce the risk of drift, product loss, and applications outside recommended ranges. Designed for field use, CalypsoSpray provides a clear, fast, and easy-to-read interface for iPhone and iPad. Key features: - Real-time readings from compatible Calypso sensors. - Wind, temperature, and humidity monitoring. - Clear indicators to assess spraying conditions. - Simple interface designed for outdoor agricultural work. - Direct Bluetooth connection to the sensor. - Compatible with iPhone and iPad. CalypsoSpray is designed to support field decision-making, but it does not replace local regulations, crop protection product instructions, or the professional judgment of the applicator.
Screenshots
Verdict
The clearest difference is update cadence: Met Tech Expo at weekly against CalypsoSpray's every 6 weeks. CalypsoSpray's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 17.4). On price, 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.
Met Tech Expo ships an update weekly, CalypsoSpray every 6 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | Met Tech Expo | CalypsoSpray |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly โ better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad, iPod โ better |
| Requires iOS | 17.4 | 14.0 โ better |
| Further details โ not scored | ||
| Size | 147 MB | 18 MB |
| Age rating | 17+ | 4+ |
| Developer | UKi Media & Events | Calypso Instruments |
In-app purchases
Met Tech Expo
No in-app purchases
CalypsoSpray
No in-app purchases
Questions
Is Met Tech Expo free?
Is CalypsoSpray free?
Do Met Tech Expo or CalypsoSpray have ads?
Which is updated more often, Met Tech Expo or CalypsoSpray?
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