# Clock Seconds vs PackFast

The clearest difference is in-app purchases: PackFast at none against Clock Seconds's 2. Clock Seconds's advantage is ads (none vs shown) and iOS requirement (13.0 vs 26.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Clock Seconds sells 2 one-off in-app purchases. PackFast asks for nothing beyond the download.

Clock Seconds ships an update every 4 weeks, PackFast every 5 weeks. The most recent releases landed on September 15, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Clock Seconds | PackFast |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/clock-seconds/id6446502527/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 4 weeks** | Every 5 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 22 MB | 12 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [David Engler - Apps](https://appshunter.io/developer/1678138767) | [Kento Hashiguchi](https://appshunter.io/developer/1639891111) |

## What reviewers say

### Clock Seconds

[App page](https://appshunter.io/ios/app/clock-seconds/id6446502527)

A highly accurate and customizable digital clock that fills your screen. Offers adjustable colors, sizes, and 12/24 hour formats. Designed for minimal battery usage.

**Highlights:** Largest digital clock display, Accurate atomic time comparison, Customizable colors and dimensions, 12/24 hour format options, Minimal battery consumption design, Portrait mode settings access

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |
| Unlock | $9.99 | one-time |


### PackFast

[App page](https://appshunter.io/ios/app/packfast-quick-packing-list/id6759274678)

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

**In-app purchases:** none


## Frequently asked questions

### Is Clock Seconds free?

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

### Is PackFast free?

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

### Do Clock Seconds or PackFast have ads?

PackFast shows ads; Clock Seconds does not.

### Which is updated more often, Clock Seconds or PackFast?

Clock Seconds ships an update every 4 weeks, and PackFast every 5 weeks. Most recently, Clock Seconds was updated on September 15, 2026 and PackFast on September 21, 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.*