# tempi.fi vs Keltron AIR

The clearest difference is update cadence: Keltron AIR at every 3 months against tempi.fi's every 9 months. On price, ads, 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.

tempi.fi ships an update every 9 months, Keltron AIR every 3 months. The most recent releases landed on October 8, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | tempi.fi | Keltron AIR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (19 ratings)](https://appshunter.io/ios/app/tempifi/id1482659014/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 92.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 22 MB | 10 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [VITALNOMAD LLC](https://appshunter.io/developer/1482659013) | [Keltront IoT Corporation](https://appshunter.io/developer/1786619980) |

## What reviewers say

### tempi.fi

[App page](https://appshunter.io/ios/app/tempifi/id1482659014)

This app connects to wireless sensors to continuously monitor temperature and humidity. Receive alerts for out-of-range conditions, store historical data, and export readings in CSV format. Ideal for various environments like refrigerators, nurseries, and greenhouses.

**Highlights:** Wireless sensor connection, Continuous temperature/humidity monitoring, Out-of-range alerts, Historical data storage, CSV data export, Automatic sensor setup

**Features:** macOS Compatibility

**In-app purchases:** none


### Keltron AIR

[App page](https://appshunter.io/ios/app/keltron-air/id6739707652)

**In-app purchases:** none


## Frequently asked questions

### Is tempi.fi free?

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

### Is Keltron AIR free?

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

### Do tempi.fi or Keltron AIR have ads?

Neither tempi.fi nor Keltron AIR shows ads.

### Which is updated more often, tempi.fi or Keltron AIR?

tempi.fi ships an update every 9 months, and Keltron AIR every 3 months. Most recently, tempi.fi was updated on October 8, 2026 and Keltron AIR on October 1, 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.*