# SenseTag vs ChronoCalc Pro

The clearest difference is update cadence: SenseTag at every 2 days against ChronoCalc Pro's every 5 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.

SenseTag ships an update every 2 days, ChronoCalc Pro every 5 months. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | SenseTag | ChronoCalc Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 5 months |
| Size | 6 MB | 4 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Ivan Pohorielov](https://appshunter.io/developer/1802208287) | [ERLEND JOHNSRUD VAAGE](https://appshunter.io/developer/1760100550) |

## What reviewers say

### SenseTag

[App page](https://appshunter.io/ios/app/sensetag/id6743321441)

**Features:** macOS Compatibility

**In-app purchases:** none


### ChronoCalc Pro

[App page](https://appshunter.io/ios/app/chronocalc-pro/id6757017750)

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

**In-app purchases:** none


## Frequently asked questions

### Is SenseTag free?

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

### Is ChronoCalc Pro free?

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

### Do SenseTag or ChronoCalc Pro have ads?

Neither SenseTag nor ChronoCalc Pro shows ads.

### Which is updated more often, SenseTag or ChronoCalc Pro?

SenseTag ships an update every 2 days, and ChronoCalc Pro every 5 months. Most recently, SenseTag was updated on October 25, 2026 and ChronoCalc Pro on October 28, 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.*