# Conference4me vs CalypsoSpray

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.

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.

## The numbers

| Metric | Conference4me | CalypsoSpray |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.7 (12 ratings)](https://appshunter.io/ios/app/conference4me/id465916976/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 31.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | Every 6 weeks |
| Monetization | Free | — |
| Size | 12 MB | 18 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Poznan Supercomputing and Networking Center](https://appshunter.io/developer/726093818) | [Calypso Instruments](https://appshunter.io/developer/928168289) |

## What reviewers say

### Conference4me

[App page](https://appshunter.io/ios/app/conference4me/id465916976)

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.

**Highlights:** Up-to-date agenda access, Conference key information, Venue maps and plans, Offline functionality, Exhibitor descriptions and search, Bookmarking stands/exhibitors

**In-app purchases:** none


### CalypsoSpray

[App page](https://appshunter.io/ios/app/calypsospray/id6769805534)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Conference4me free?

Conference4me is free to download, with no in-app purchases.

### Is CalypsoSpray free?

CalypsoSpray is free to download, with no in-app purchases.

### Do Conference4me or CalypsoSpray have ads?

Neither Conference4me nor CalypsoSpray shows ads.

### Which is updated more often, Conference4me or CalypsoSpray?

Conference4me ships an update every 6 weeks, and CalypsoSpray every 6 weeks. Most recently, Conference4me was updated on November 1, 2026 and CalypsoSpray on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*