# Dual up down timer vs Ninja Fight Clock

The clearest difference is in-app purchases: Dual up down timer at none against Ninja Fight Clock's 1. Dual up down timer also leads on ads (none vs shown) and iOS requirement (11.2 vs 14.0). Ninja Fight Clock's advantage is update cadence (every 3 weeks vs every 4 months). On price and device support there is nothing between them.

Both are free to download. Ninja Fight Clock sells 1 one-off in-app purchase. Dual up down timer asks for nothing beyond the download.

Dual up down timer ships an update every 4 months, Ninja Fight Clock every 3 weeks. The most recent releases landed on October 5, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Dual up down timer | Ninja Fight Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/dual-up-down-timer/id1294165793/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 10 MB | 25 MB |
| Requires iOS | **11.2** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [RD Concepts](https://appshunter.io/developer/1293498470) | [Mihoko Araki](https://appshunter.io/developer/1476136915) |

## What reviewers say

### Dual up down timer

[App page](https://appshunter.io/ios/app/dual-up-down-timer/id1294165793)

This utility app provides a straightforward heat-up and cool-down timer. It features a simple interface and visual cues, with screen flashes indicating the end of each interval.

**Highlights:** Heat up and cool down timer, Simple user interface, Screen flash alerts, Interval timing

**Features:** macOS Compatibility

**In-app purchases:** none


### Ninja Fight Clock

[App page](https://appshunter.io/ios/app/ninja-fight-clock/id6461210488)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ninja Fight Clock with no ads | $2.99 | one-time |


## Frequently asked questions

### Is Dual up down timer free?

Dual up down timer is free to download, with no in-app purchases.

### Is Ninja Fight Clock free?

Ninja Fight Clock is free to download, with in-app purchases available.

### Do Dual up down timer or Ninja Fight Clock have ads?

Ninja Fight Clock shows ads; Dual up down timer does not.

### Which is updated more often, Dual up down timer or Ninja Fight Clock?

Dual up down timer ships an update every 4 months, and Ninja Fight Clock every 3 weeks. Most recently, Dual up down timer was updated on October 5, 2026 and Ninja Fight Clock on October 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.*