# Hidden Timer vs Serial Countdown Timer

The clearest difference is in-app purchases: Hidden Timer at none against Serial Countdown Timer's 1. Hidden Timer also leads on iOS requirement (15.8.3 vs 17.0). Serial Countdown Timer's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Serial Countdown Timer sells 1 one-off in-app purchase. Hidden Timer asks for nothing beyond the download.

## The numbers

| Metric | Hidden Timer | Serial Countdown Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/hidden-timer/id6502872588/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | — |
| Monetization | Ad-supported | — |
| Size | 35 MB | 10 MB |
| Requires iOS | **15.8.3** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) | [Jeevan Nagaraj](https://appshunter.io/developer/1895217006) |

## What reviewers say

### Hidden Timer

[App page](https://appshunter.io/ios/app/hidden-timer/id6502872588)

This utility app provides a timer function that allows users to conceal the countdown while it is active. It offers a unique way to manage time without visual distraction.

**Highlights:** Hide timer countdown, Stealth time management, Simple timer functionality, Distraction-free use

**Features:** macOS Compatibility

**In-app purchases:** none


### Serial Countdown Timer

[App page](https://appshunter.io/ios/app/serial-countdown-timer/id6763911554)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access | $1.99 | one-time |


## Frequently asked questions

### Is Hidden Timer free?

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

### Is Serial Countdown Timer free?

Serial Countdown Timer is free to download, with in-app purchases available.

### Do Hidden Timer or Serial Countdown Timer have ads?

Hidden Timer shows ads; Serial Countdown Timer does not.

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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.*