# Precise Timestamp vs ChronoNano

The clearest difference is update cadence: ChronoNano at every 5 days against Precise Timestamp's every 5 weeks. Precise Timestamp's advantage is iOS requirement (13.0 vs 18.6). 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.

Precise Timestamp ships an update every 5 weeks, ChronoNano every 5 days. The most recent releases landed on October 21, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Precise Timestamp | ChronoNano |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/precise-timestamp/id6463294734/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 5 days** |
| Monetization | Free | — |
| Size | 19 MB | 6 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Chris Gillin](https://appshunter.io/developer/1565599090) | [Saeed Alshamsi](https://appshunter.io/developer/1843100835) |

## What reviewers say

### Precise Timestamp

[App page](https://appshunter.io/ios/app/precise-timestamp/id6463294734)

Capture events with unparalleled accuracy, down to the tenth of a second. Synchronize with NTP servers for precise timekeeping and view detailed sync information. Organize events with descriptions and toggle between absolute and relative time displays.

**Highlights:** NTP server synchronization, Tenth-of-a-second accuracy, Absolute and relative time modes, Event descriptions, Event sorting and grouping, Sync time details

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

**In-app purchases:** none


### ChronoNano

[App page](https://appshunter.io/ios/app/chrononano/id6753213952)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Precise Timestamp free?

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

### Is ChronoNano free?

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

### Do Precise Timestamp or ChronoNano have ads?

Neither Precise Timestamp nor ChronoNano shows ads.

### Which is updated more often, Precise Timestamp or ChronoNano?

Precise Timestamp ships an update every 5 weeks, and ChronoNano every 5 days. Most recently, Precise Timestamp was updated on October 21, 2026 and ChronoNano on October 8, 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.*