Comparison

QuickFill PDF vs Blank Black Screen

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

Head to head
About

QuickFill PDF

Features
Read full description

You can fill PDF files quickly with this app. Pros: - You can edit PDF files using pen strokes. - You don't need pen devices to make strokes. These strokes can be scaled down and moved by finger gestures. Cons: - Embeds images in PDFs, instead of annotates them.

About

Blank Black Screen

Enjoy videos without interruptions and save battery life. This app allows you to play videos and music with the screen locked, perfect for pocket use. Customize your viewing experience with a dimmable screen and adjustable clock.

Highlights
  • Distraction-free full-screen viewing
  • Power-saving screen dimming
  • Customizable clock display
  • Quick start and exit
  • Automatic settings memory
  • Picture-in-picture support
Features
Read full description

Blank Black Screen turns your iPhone or iPad into a true black screen that stays on. Use it to rest your eyes, keep a video playing in the dark, or as a calm clock on your nightstand. TWO MODES, ONE TAP • Black: a dark screen for video, Picture in Picture or just resting your eyes. • Nightstand: a large, dim clock that keeps the screen on all night. Keep it charging. Swipe up on the dark screen to switch between them. ON THE BLACK SCREEN • Swipe left or right to dim the screen • Swipe down to exit • Drag the clock to move it, or hide it • Clock color: white, amber or red (red and amber are easier on the eyes at night) • Full screen hides the status bar and home indicator • The clock shifts slightly now and then to protect the display On OLED iPhones and iPads black pixels are switched off, so the black screen uses very little power. LOCK OUT ACCIDENTAL TAPS Turn on Screen lock and a lock icon appears. When locked, touches are ignored until you tap the lock a few times in a row. LISTEN WITH THE SCREEN DARK Paste a YouTube link and play the video on the black screen, with the rest of the screen kept dark. Picture in Picture works too, using the button in the video controls. WAKE-UP ALARM AND SUNRISE LIGHT (iOS 26 OR LATER) On iOS 26 or later you can set a wake-up alarm in Nightstand mode. It is a real iOS alarm: it rings even when the app is closed, the phone is locked or on silent. With the sunrise light, the screen slowly glows from red to warm white over the 30 minutes before your alarm. The sunrise light only works while the app is open on screen in Nightstand mode, so keep your phone charging overnight. It is a gentle light, much dimmer than a wake-up lamp. The wake-up alarm and sunrise light are not available on iOS versions earlier than 26. FREE • Black and Nightstand modes • Swipe to dim, movable clock, clock color, full screen • Screen lock • Play a YouTube link, Picture in Picture • Wake-up alarm (iOS 26 or later), with your first sunrise morning free PREMIUM • Sunrise wake-up light every morning (iOS 26 or later) • Remembered brightness: the level you dim to is used every time, or set a fixed brightness. Also in Nightstand. • Custom clock size and clock brightness • Faster unlock of the locked screen • Nothing else on the black screen: no "Blank Black Screen" text and no upgrade prompts Premium is available as a monthly or yearly subscription, or as a one-time lifetime purchase. Premium includes a free trial for new subscribers on the yearly plan where offered. Prices are shown in the app before you buy. Payment is charged to your Apple Account when you confirm the purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the end of the current period. You can manage and cancel your subscription in your Apple Account settings after purchase. If a free trial is offered, any unused part of it is forfeited when you buy a subscription. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://punnerud.github.io/info_blankscreen/privacy-policy/

Screenshots

QuickFill PDF2 screens
Blank Black Screen4 screens

Verdict

The call

The clearest difference is in-app purchases: QuickFill PDF at none against Blank Black Screen's 3. Blank Black Screen's advantage is update cadence (every 3 days vs every 4 months). On price, ads, 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. Blank Black Screen sells 3 in-app purchases, starting at $1.49 per month. QuickFill PDF asks for nothing beyond the download.

UpkeepUpdate frequency

QuickFill PDF ships an update every 4 months, Blank Black Screen every 3 days. The most recent releases landed on November 4, 2026 and November 8, 2026 respectively.

Scorecard2 real differences · 8 level
QuickFill PDF versus Blank Black Screen: the parameters behind the verdict, then further details
ParameterQuickFill PDFBlank Black Screen
PriceFreeFree
Rating—4.6 (20 ratings) — better
Positive reviews—50.0% of reviews
Number of ratings—20 — better
Update frequencyEvery 4 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.1 — better
Further details — not scored
Size1 MB10 MB
Age rating4+4+
DeveloperYujin YanoMorten Punnerud

In-app purchases

None

QuickFill PDF

No in-app purchases

3 purchases

Blank Black Screen

Subscriptions2
  • Advanced features monthly$1.491 Month
  • Advanced features yearly14 Days trial$14.991 Year
One-time1
  • One-time all advanced features$19.99

Questions

Is QuickFill PDF free?
QuickFill PDF is free to download, with no in-app purchases.
Is Blank Black Screen free?
Blank Black Screen is free to download, with in-app purchases available.
Do QuickFill PDF or Blank Black Screen have ads?
Neither QuickFill PDF nor Blank Black Screen shows ads.
Which is updated more often, QuickFill PDF or Blank Black Screen?
QuickFill PDF ships an update every 4 months, and Blank Black Screen every 3 days. Most recently, QuickFill PDF was updated on November 4, 2026 and Blank Black Screen on November 8, 2026.

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