# CentraTime vs ST

The clearest difference is update cadence: CentraTime at every 2 months against ST's every 6 months. CentraTime also leads on iOS requirement (14.0 vs 16.2). 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.

CentraTime ships an update every 2 months, ST every 6 months. The most recent releases landed on May 16, 2026 and December 22, 2025 respectively.

## The numbers

| Metric | CentraTime | ST |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Size | 83 MB | 15 MB |
| Requires iOS | **14.0** | 16.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Kruvi Solutions Limited](https://appshunter.io/developer/1470595220) | [Health Advocates Network Inc](https://appshunter.io/developer/1691071850) |

## What reviewers say

### CentraTime

[App page](https://appshunter.io/ios/app/centratime/id1629416878)

**In-app purchases:** none


### ST

[App page](https://appshunter.io/ios/app/st/id6449938419)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CentraTime free?

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

### Is ST free?

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

### Do CentraTime or ST have ads?

Neither CentraTime nor ST shows ads.

### Which is updated more often, CentraTime or ST?

CentraTime ships an update every 2 months, and ST every 6 months. Most recently, CentraTime was updated on May 16, 2026 and ST on December 22, 2025.

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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.*