# Temperature Sensor Reader vs ICMA Expo

The clearest difference is ads: Temperature Sensor Reader at none against ICMA Expo's shown. Temperature Sensor Reader also leads on update cadence (every 10 days vs every 3 months). ICMA Expo's advantage is iOS requirement (10.0 vs 14.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Temperature Sensor Reader ships an update every 10 days, ICMA Expo every 3 months. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Temperature Sensor Reader | ICMA Expo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 10 days** | Every 3 months |
| Size | 3 MB | 55 MB |
| Requires iOS | 14.0 | **10.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 17+ |
| Developer | [Keeping It Cool, Inc.](https://appshunter.io/developer/1659847458) | [Weblications](https://appshunter.io/developer/404208317) |

## What reviewers say

### Temperature Sensor Reader

[App page](https://appshunter.io/ios/app/temperature-sensor-reader/id1659847456)

**Features:** macOS Compatibility

**In-app purchases:** none


### ICMA Expo

[App page](https://appshunter.io/ios/app/icma-expo/id6757304010)

**In-app purchases:** none


## Frequently asked questions

### Is Temperature Sensor Reader free?

Temperature Sensor Reader is free to download, with no in-app purchases.

### Is ICMA Expo free?

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

### Do Temperature Sensor Reader or ICMA Expo have ads?

ICMA Expo shows ads; Temperature Sensor Reader does not.

### Which is updated more often, Temperature Sensor Reader or ICMA Expo?

Temperature Sensor Reader ships an update every 10 days, and ICMA Expo every 3 months. Most recently, Temperature Sensor Reader was updated on October 9, 2026 and ICMA Expo on October 7, 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.*