Conference4me vs CalypsoSpray
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Conference4me
This app helps attendees navigate conferences and exhibitions. Access the latest agenda, venue maps, and exhibitor details. It offers offline functionality for browsing conference information without an internet connection.
- Up-to-date agenda access
- Conference key information
- Venue maps and plans
- Offline functionality
- Exhibitor descriptions and search
- Bookmarking stands/exhibitors
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Conference4me is an application that facilitates participation in the conferences and exhibitions. It is offered free to conference attendees. The application is developed by Poznan Supercomputing and Networking Center (http://www.pcss.pl) Features Conference support - Access to up to date agenda - Easy access to conference's key information (venue, accommodation, etc.) - Built in conference's venue maps, plans - Offline functionality. Application does not require active internet connection for browsing conference related information. - Conference content (sessions, events, abstracts, links to presentations, etc.) - Conference news (delivered via Twitter) Exhibition support - Description of exhibition, stands, and exhibitors. Provides attendees with contacts, and links to exhibitors' promotional materials. - Allows to search for a particular stand - Easy bookmarking stands/exhibitors Conference4me can be easily adapted any conference. Credits - Michal Owsiak @ PSNC - Bartek Palak @ PSNC - Sebastian Mamczak @ PSNC - Konrad Leszczyński @ PSNC
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
Conference4me and CalypsoSpray are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
Both ship on a similar rhythm, roughly every 6 weeks. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.
| Parameter | Conference4me | CalypsoSpray |
|---|---|---|
| Price | Free | Free |
| Rating | 1.7 (12 ratings) — better | — |
| Positive reviews | 31.3% of reviews | — |
| Number of ratings | 12 — better | — |
| Update frequency | Every 6 weeks | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Poznan Supercomputing and Networking Center | Calypso Instruments |
In-app purchases
Conference4me
No in-app purchases
CalypsoSpray
No in-app purchases









