# Time Calibrator vs Ocuity AI

The clearest difference is iOS requirement: Ocuity AI at 13.0 against Time Calibrator's 15.6. On price, update cadence, 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.

Time Calibrator ships an update every 8 months, Ocuity AI every 5 months. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Time Calibrator | Ocuity AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.7 (3 ratings)](https://appshunter.io/ios/app/time-calibrator/id786988278/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 5 months** |
| Monetization | Free | — |
| Size | 8 MB | 595 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Atomtime Suisse S.A.](https://appshunter.io/developer/786988281) | [Digital Management Inc](https://appshunter.io/developer/945470362) |

## What reviewers say

### Time Calibrator

[App page](https://appshunter.io/ios/app/time-calibrator/id786988278)

This utility app provides precise local time and date information by connecting to an atomic clock server in Switzerland. It utilizes quantum technology to transmit this data at the speed of light directly to compatible i-Atomic watches.

**Highlights:** Accurate global time and date, Connects to Swiss atomic clock server, Quantum technology data transmission, Direct communication to i-Atomic watches, Light signal synchronization

**Features:** macOS Compatibility

**In-app purchases:** none


### Ocuity AI

[App page](https://appshunter.io/ios/app/ocuity-ai/id1585967098)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Time Calibrator free?

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

### Is Ocuity AI free?

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

### Do Time Calibrator or Ocuity AI have ads?

Neither Time Calibrator nor Ocuity AI shows ads.

### Which is updated more often, Time Calibrator or Ocuity AI?

Time Calibrator ships an update every 8 months, and Ocuity AI every 5 months. Most recently, Time Calibrator was updated on October 23, 2026 and Ocuity AI on October 25, 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.*