# Custom Chime vs PDF Tools Pro

The clearest difference is price: PDF Tools Pro at Free against Custom Chime's $0.99. PDF Tools Pro also leads on update cadence (monthly vs every 26 months). Custom Chime's advantage is in-app purchases (none vs 1) and iOS requirement (13.0 vs 18.0). On ads and device support there is nothing between them.

PDF Tools Pro is free to download; Custom Chime costs $0.99 up front. PDF Tools Pro sells 1 one-off in-app purchase. Custom Chime asks for nothing beyond the download.

Custom Chime ships an update every 26 months, PDF Tools Pro monthly. Both last shipped on October 24, 2026.

## The numbers

| Metric | Custom Chime | PDF Tools Pro |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[1.0 (3 ratings)](https://appshunter.io/ios/app/custom-chime/id1493743690/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 26 months | **Monthly** |
| Monetization | Paid | — |
| Size | 1 MB | 5 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Rene Rosendahl](https://appshunter.io/developer/652634280) | [明龙 车](https://appshunter.io/developer/495069166) |

## What reviewers say

### Custom Chime

[App page](https://appshunter.io/ios/app/custom-chime/id1493743690)

This app allows users to create personalized chime notifications for their schedule. Set hourly or half-hourly alerts, customize weekday and weekend schedules, and receive reminders via watchOS notifications.

**Highlights:** Hourly/half-hourly chimes, Weekday/weekend settings, Separate schedules, WatchOS notifications, Customizable alerts

**Features:** Apple Watch app

**In-app purchases:** none


### PDF Tools Pro

[App page](https://appshunter.io/ios/app/pdf-tools-pro-scan-and-ocr/id6760276378)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Pro | $7.99 | one-time |


## Frequently asked questions

### Is Custom Chime free?

Custom Chime costs $0.99, with no in-app purchases.

### Is PDF Tools Pro free?

PDF Tools Pro is free to download, with in-app purchases available.

### Do Custom Chime or PDF Tools Pro have ads?

Neither Custom Chime nor PDF Tools Pro shows ads.

### Which is updated more often, Custom Chime or PDF Tools Pro?

Custom Chime ships an update every 26 months, and PDF Tools Pro monthly. Most recently, Custom Chime was updated on October 24, 2026 and PDF Tools Pro on October 24, 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.*