# 땡초 vs Nanotime

The clearest difference is in-app purchases: 땡초 at none against Nanotime's 1. 땡초 also leads on ads (none vs shown). Nanotime's advantage is update cadence (every 2 days vs every 2 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Nanotime sells 1 one-off in-app purchase. 땡초 asks for nothing beyond the download.

땡초 ships an update every 2 months, Nanotime every 2 days. The most recent releases landed on October 25, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | 땡초 | Nanotime |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 2 MB | 66 MB |
| Requires iOS | 17.6 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [GeonWoo Shin](https://appshunter.io/developer/1853388063) | [Nemo factory](https://appshunter.io/developer/6781919423) |

## What reviewers say

### 땡초

[App page](https://appshunter.io/ios/app/id6773711146)

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

**In-app purchases:** none


### Nanotime

[App page](https://appshunter.io/ios/app/nanotime-server-time-clock/id6801582008)

This utility app displays the precise server time down to 1/100 of a second, crucial for time-sensitive events like ticket drops or class registrations. It offers visual accuracy indicators, a floating clock overlay, and customizable sound/vibration alerts to ensure you never miss a critical moment.

**Highlights:** Displays server time to 1/100 second, Shows accuracy margin (±ms), Floating clock overlay (Picture-in-Picture), Sound and vibration alerts, Customizable pre-opening alerts, Rehearsal mode for practice drops

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $3.99 | one-time |


## Frequently asked questions

### Is 땡초 free?

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

### Is Nanotime free?

Nanotime is free to download, with in-app purchases available.

### Do 땡초 or Nanotime have ads?

Nanotime shows ads; 땡초 does not.

### Which is updated more often, 땡초 or Nanotime?

땡초 ships an update every 2 months, and Nanotime every 2 days. Most recently, 땡초 was updated on October 25, 2026 and Nanotime on November 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.*