Comparison

Charge Countdown vs PDF Hub

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Charge Countdown

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
Read full description

How much longer is my iPhone charging? Charging time calculates your iPhone charging time and shows you the remaining time as a battery countdown that ticks along second by second. Below it you'll see the time of day when your battery will be full: "Full at 15:00". You don't have to calculate all the way to 100%. Set your own charging target – 70%, 80% or completely full – and the charging duration adjusts instantly. It works the other way round too: move the slider until the time matches your appointment, and you'll know how full the battery will be by then. Handy when you're about to head out. WHAT THE APP CAN DO • Countdown in minutes and seconds while the iPhone charges • The time of day when the battery will be full • Charging target freely selectable, in one-percent steps • Charger slider: slow, normal or fast • Calculates with the real battery of your iPhone model • Charging curve from 0 to 100% – see how your iPhone charges • Seven tips to make your battery last longer • Ring showing the current battery level • Works with a cable and with wireless charging on a charging pad • Everything on one screen, no menus • Light and dark mode, switches automatically • For iPhone and iPad, in a single purchase HOW DOES THE LADEZEIT APP WORK? The app doesn't work with a blanket figure, it works with your device: it reads the model identifier and therefore knows how big your battery really is and how much charging power it accepts – 40 models are stored, from the iPhone X to the iPhone 17 Pro Max, plus the iPads. Then there's your charger, because between an old five-watt plug and a USB-C fast charger there is a factor of seven. iOS doesn't tell apps what is connected, so you set it once with a slider – only then is the battery charging time correct. And because a battery doesn't charge evenly and throttles noticeably above 80%, the charging time calculator works through the path from 0 to 100% in twenty stages. That same calculation also draws the charging curve in the app. TIPS TO MAKE YOUR BATTERY LAST LONGER A new battery costs money and a few days without your phone. Charging time gathers seven tips in one place, right below the charging curve: battery level, temperature, charging overnight, full charges, heat from cases, low power mode and iOS updates. Each one in a single sentence, without having to search through guides. NO ADS, NO TRACKING Charging time calculates everything directly on your device and makes no connection to the outside world at all: no servers, no trackers, no ads, no user account, no sign-up. The charging display works in airplane mode just as well as with Wi-Fi. The app is around 5 MB in size, available in 11 languages and runs on iPhone and iPad from iOS 18.2. Downloading the app is free. Full functionality is available via a one-time purchase or a subscription – the scope is the same for both. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://ladezeit.app/datenschutz

About

PDF Hub

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
Read full description

Transform the way you work with PDFs on your iPhone and iPad. PDF Hub is your complete PDF toolkit that makes document management effortless and professional. * Scan to PDF Instantly convert physical documents into high-quality digital PDFs using your device camera. Perfect for receipts, contracts, notes, and more. * Compress PDF Reduce file sizes without compromising quality. Choose from high, medium, or low compression levels to balance quality and file size for your needs. * Split PDF Extract specific pages or split large PDFs into smaller documents. Organize your files exactly the way you want. * Merge PDF Combine multiple PDF files into a single document. Streamline your workflow by consolidating related documents. * Add Watermark Protect your documents with custom watermarks. Add text or image watermarks to maintain ownership and prevent unauthorized use. * Image to PDF Convert photos and images into professional PDF documents. Support for multiple image formats and batch conversion. Why Choose PDF Hub? All-in-One Solution - Six powerful tools in one beautiful app Privacy First - All processing happens on your device. Your files never leave your phone Lightning Fast- Optimized performance for quick results Intuitive Design - Clean, modern interface that's easy to use No Internet Required- Work offline anytime, anywhere Professional Results - High-quality output suitable for business and personal use Perfect For: • Business professionals managing contracts and reports • Students organizing study materials and assignments • Freelancers handling client documents • Anyone who works with PDFs regularly Privacy & Security: Your privacy matters. PDF Hub processes all documents locally on your device. We don't collect, store, or transmit your files to any server. Your documents stay yours. Download PDF Hub today and experience the easiest way to work with PDFs on iOS!

Screenshots

Charge Countdown4 screens
PDF Hub4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
Charge Countdown versus PDF Hub: the parameters behind the verdict, then further details
ParameterCharge CountdownPDF Hub
PriceFreeFree
Rating2.7 (6 ratings)5.0 (1 ratings) — better
Positive reviews76.5% of reviews—
Number of ratings6 — better1
Update frequencyEvery 5 days — betterEvery 6 days
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad — betteriPhone
Requires iOS18.217 — better
Further details — not scored
Size5 MB87 MB
Age rating4+4+
DeveloperLeonhard Hundschell通县 王

Customer experience

Charge Countdown

All ratings6 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews17 reviews
Positive76.5%
Neutral0.0%
Negative23.5%

PDF Hub

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

Charge Countdown

Subscriptions3
  • Charging Countdown - Battery3 Days trial$3.997 Days
  • Charge Countdown – 1 Month$3.991 Month
  • Charging Countdown – Battery$5.991 Year
One-time1
  • Charge Countdown – Unlimited$12.99
None

PDF Hub

No in-app purchases

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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