# PIMS vs Big Digital Clock

The clearest difference is in-app purchases: PIMS at none against Big Digital Clock's 1. Big Digital Clock's advantage is update cadence (every 10 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Big Digital Clock sells 1 one-off in-app purchase. PIMS asks for nothing beyond the download.

PIMS ships an update every 2 months, Big Digital Clock every 10 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | PIMS | Big Digital Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (6 ratings)](https://appshunter.io/ios/app/big-digital-clock-desk-clock/id6809487420/reviews)** |
| Number of ratings | — | **6** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 10 days** |
| Monetization | — | Free with in-app purchases |
| Size | 143 MB | 21 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mattex Asia Development Limited](https://appshunter.io/developer/1544706183) | [Hank Wang](https://appshunter.io/developer/6800213367) |

## What reviewers say

### PIMS

[App page](https://appshunter.io/ios/app/pims/id6757696142)

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

**In-app purchases:** none


### Big Digital Clock

[App page](https://appshunter.io/ios/app/big-digital-clock-desk-clock/id6809487420)

Transform an old phone or tablet into a large, always-on digital clock with local weather. Displays time, date, temperature, and weather conditions at a glance, ideal for desks or nightstands. Offers customization options for fonts, colors, and display styles.

**Highlights:** Full-screen digital clock display, Local weather conditions and temperature, Customizable fonts, text size, and colors, 12-hour or 24-hour format, Keeps screen awake, Landscape full-screen layout

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Unlock | $1.99 | one-time |


## Frequently asked questions

### Is PIMS free?

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

### Is Big Digital Clock free?

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

### Do PIMS or Big Digital Clock have ads?

Neither PIMS nor Big Digital Clock shows ads.

### Which is updated more often, PIMS or Big Digital Clock?

PIMS ships an update every 2 months, and Big Digital Clock every 10 days. Most recently, PIMS was updated on October 31, 2026 and Big Digital Clock on October 31, 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.*