# Countdown Timer Nano vs Scream O'Clock

The clearest difference is rating: Scream O'Clock at 5.0 against Countdown Timer Nano's 3.8. Scream O'Clock also leads on in-app purchases (none vs 2) and update cadence (every 3 weeks vs every 6 weeks). Countdown Timer Nano's advantage is device support (3 vs 1). On price, ratings volume, ads and iOS requirement there is nothing between them.

Both are free to download. Countdown Timer Nano sells 2 in-app purchases, starting at $2.99 per year. Scream O'Clock asks for nothing beyond the download.

Scream O'Clock holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 5 and 6 respectively.

Countdown Timer Nano ships an update every 6 weeks, Scream O'Clock every 3 weeks. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Countdown Timer Nano | Scream O'Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (5 ratings)](https://appshunter.io/ios/app/countdown-timer-nano/id760857635/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/scream-oclock/id6752229136/reviews)** |
| Number of ratings | 5 | **6** |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Paid | **Free** |
| Size | 26 MB | 74 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [Igor Donkov](https://appshunter.io/developer/612374152) | [Tyler Zacharias](https://appshunter.io/developer/1838346883) |

## What reviewers say

### Countdown Timer Nano

[App page](https://appshunter.io/ios/app/countdown-timer-nano/id760857635)

A minimalist countdown timer with both numerical and graphical time displays. This version offers extended time limits, additional visual styles, and features like autorestart for interval training.

**Highlights:** Numerical and graphical time display, Up to 999 minutes time limit, Two extra display styles (FAT, B&W), Circle animation of total time, Count down and count up functions, Autorestart for interval training, Optional sounds

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly | $2.99 | per year |
| Lifetime | $7.99 | one-time |


### Scream O'Clock

[App page](https://appshunter.io/ios/app/scream-oclock/id6752229136)

This app simplifies managing scare rotations for haunted attractions. It tracks character groups and provides live countdowns with vibration alerts for seamless transitions between on-set and break times. Designed by scare actors for scare actors, it ensures smooth operations and continuous scares.

**Highlights:** Group tracking (A, B, C), Live countdown timers, Vibration alerts for rotations, Synchronized rotation view, Dark mode design, Built for scare actors

**In-app purchases:** none


## Frequently asked questions

### Is Countdown Timer Nano free?

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

### Is Scream O'Clock free?

Scream O'Clock is free to download, with no in-app purchases.

### Which has better reviews, Countdown Timer Nano or Scream O'Clock?

Scream O'Clock is rated higher. Countdown Timer Nano averages 3.8 out of 5 from 5 ratings, while Scream O'Clock averages 5.0 from 6 ratings.

### Do Countdown Timer Nano or Scream O'Clock have ads?

Neither Countdown Timer Nano nor Scream O'Clock shows ads.

### Which is updated more often, Countdown Timer Nano or Scream O'Clock?

Countdown Timer Nano ships an update every 6 weeks, and Scream O'Clock every 3 weeks. Most recently, Countdown Timer Nano was updated on November 6, 2026 and Scream O'Clock on October 30, 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.*