# Charge Countdown vs PDF Hub

The clearest difference is rating: PDF Hub at 5.0 against Charge Countdown's 2.7. PDF Hub also leads on in-app purchases (none vs 4). Charge Countdown's advantage is ads (none vs shown) and ratings volume (6 vs 1). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Charge Countdown sells 4 in-app purchases, starting at $3.99 per 7 days. PDF Hub asks for nothing beyond the download.

PDF Hub holds the better App Store score, 5.0 against 2.7. That said, the two scores are not equally well evidenced: Charge Countdown has 6 ratings behind it against 1, so its average is the more settled of the two.

Charge Countdown ships an update every 5 days, PDF Hub every 6 days. The most recent releases landed on September 22, 2026 and June 5, 2026 respectively.

## The numbers

| Metric | Charge Countdown | PDF Hub |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (6 ratings)](https://appshunter.io/ios/app/charge-countdown-battery/id6740901010/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pdf-hub/id6754962296/reviews)** |
| Number of ratings | **6** | 1 |
| Positive reviews | 76.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Every 6 days |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 5 MB | 87 MB |
| Requires iOS | 18.2 | **17** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Leonhard Hundschell](https://appshunter.io/developer/1790030562) | [通县 王](https://appshunter.io/developer/1762035495) |

## What reviewers say

### Charge Countdown

[App page](https://appshunter.io/ios/app/charge-countdown-battery/id6740901010)

This app precisely calculates how long your device needs to charge to a specific percentage. It intelligently accounts for charging speed, current battery status, and power consumption to provide an accurate countdown. Optimized for iPhone and iPad, it offers an intuitive and ad-free experience for managing your battery.

**Highlights:** Precise charging time countdown, Intelligent calculation based on charging speed, Optimized for iPhone and iPad, Intuitive and user-friendly design, Offline functionality, No advertising or data tracking

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Charging Countdown - Battery | $3.99 | per 7 days |
| Charge Countdown – 1 Month | $3.99 | per month |
| Charging Countdown – Battery | $5.99 | per year |
| Charge Countdown – Unlimited | $12.99 | one-time |


### PDF Hub

[App page](https://appshunter.io/ios/app/pdf-hub/id6754962296)

This app offers a comprehensive suite of tools to manage PDF documents on your iPhone and iPad. Easily scan, compress, split, merge, add watermarks, and convert images to PDF, all processed locally on your device for enhanced privacy.

**Highlights:** Scan documents to PDF, Compress PDF file size, Split and merge PDF files, Add custom watermarks, Convert images to PDF, Offline processing

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Charge Countdown free?

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

### Is PDF Hub free?

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

### Which has better reviews, Charge Countdown or PDF Hub?

PDF Hub is rated higher. Charge Countdown averages 2.7 out of 5 from 6 ratings, while PDF Hub averages 5.0 from 1 ratings.

### Do Charge Countdown or PDF Hub have ads?

PDF Hub shows ads; Charge Countdown does not.

### Which is updated more often, Charge Countdown or PDF Hub?

Charge Countdown ships an update every 5 days, and PDF Hub every 6 days. Most recently, Charge Countdown was updated on September 22, 2026 and PDF Hub on June 5, 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.*