# Met Tech Expo vs CalypsoSpray

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.

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.

## The numbers

| Metric | Met Tech Expo | CalypsoSpray |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 6 weeks |
| Size | 147 MB | 18 MB |
| Requires iOS | 17.4 | **14.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [UKi Media & Events](https://appshunter.io/developer/1222525440) | [Calypso Instruments](https://appshunter.io/developer/928168289) |

## What reviewers say

### Met Tech Expo

[App page](https://appshunter.io/ios/app/met-tech-expo/id6749245639)

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

**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 Met Tech Expo free?

Met Tech Expo is free to download, with no in-app purchases.

### Is CalypsoSpray free?

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

### Do Met Tech Expo or CalypsoSpray have ads?

Neither Met Tech Expo nor CalypsoSpray shows ads.

### Which is updated more often, Met Tech Expo or CalypsoSpray?

Met Tech Expo ships an update weekly, and CalypsoSpray every 6 weeks. Most recently, Met Tech Expo was updated on October 30, 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.*