Comparison

PdfShot PDF to image converter vs Ringbox

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

Head to head
About

PdfShot PDF to image converter

Features
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PdfShot converts PDF pages to high-quality PNG and JPG images entirely on your device. No internet required, no cloud uploads, no subscriptions. Pick any PDF from your device, preview all pages as thumbnails, select the ones you need, and export them as images straight to your photo library. FEATURES - Open any PDF file from your device - Preview all pages in a thumbnail grid - Select individual pages or all at once - Export as PNG or JPG format - Adjustable quality from 1x to 4x DPI - Save directly to your photo library - Works 100% offline โ€” your files never leave your device HOW IT WORKS 1. Tap "Select PDF" and pick a file 2. Browse page thumbnails and tap to select 3. Choose your format and quality 4. Export โ€” images are saved to your gallery PdfShot is built for speed and privacy. All rendering happens locally on your device. No accounts, no tracking, no data collection. Perfect for students, professionals, and anyone who needs to quickly turn PDF pages into shareable images.

About

Ringbox

Features
Read full description

Find your ring size on your screen โ€” no guessing, no printing, no trip to a jeweler. Ringbox turns your iPhone into a true-to-scale ring sizer. Lay a ring you already own flat on the display, match the circle to it, and read your size in every system used worldwide. It takes about ten seconds. THREE WAYS TO MEASURE โ€ข Ring on screen โ€” the most accurate. Size the circle to the ring's inner edge. A magnifier follows your finger so you can see the exact moment the edges meet, and a haptic tick marks every quarter size. โ€ข Paper strip โ€” no ring to hand? Wrap a strip of paper around your finger, mark where it overlaps, and lay it on the true-scale ruler. โ€ข Finger on screen โ€” a quick estimate when you just want a ballpark. We label it honestly as ยฑ1 size and tell you to confirm with a ring or a strip before you buy. EVERY SIZING SYSTEM US & Canada, UK & Australia, Europe/ISO, Japan & China โ€” plus inner diameter and circumference, in millimeters and inches. Type a size in any system and the converter shows all the others. The full ring size chart runs US 3 to 16 in half sizes. ACCURATE, AND HONEST ABOUT IT Ringbox knows your exact screen size, so the circle is drawn at real physical scale rather than scaled to a guess. If your model isn't recognized, calibrate in seconds against any bank card. Double-check compares two measurements taken different ways and gives you a confidence badge, with a guided fix when they disagree. Between sizes? It tells you to round up, and why. The fit tips are built in, too: wide bands need a little more room, fingers swell through the day, and the ring has to clear the knuckle. A DRAWER FOR YOUR RINGS โ€ข Save any ring with a name, the person, the hand and the finger โ€ข Add a photo and the background is removed on device โ€” a clean cut-out of the ring itself โ€ข Group rings by person: you, your partner, your mom, whoever SURPRISE-PROOF Sizing a ring for a proposal? Secret profiles are hidden behind Face ID, so their rings, photos and sizes stay out of sight. A reminder about a secret person never shows a name or a size on your Lock Screen, and secret people are left out of widgets โ€” a Home Screen isn't private. WIDGETS, REMINDERS, PAPER โ€ข Home Screen widgets: one ring, a grid of your collection, or your size across every system โ€ข Gift reminders for birthdays and anniversaries, with the size right there in the notification โ€ข A printable paper ring sizer (PDF, Letter or A4) with a print-scale check, so you know it came out at 100% โ€ข Share cards showing a size in every system, with the ring's photo PRIVATE BY DEFAULT It all happens on your iPhone. Photos are cut out on device, sizes are stored on device, and nothing needs an account or an internet connection. Available in English, Spanish, French, German, Italian, Portuguese, Chinese and Hebrew. THE DIAMOND PLAN Ringbox requires the Diamond plan. Measure your ring size once during setup, then choose Weekly, Yearly or Lifetime to use the app: all three ways to measure, every sizing system, the chart and converter, unlimited rings and people, photo cut-outs, secret profiles with Face ID, double-check confidence, widgets, gift reminders, the printable sizer and share cards. Lifetime is a one-time purchase. Weekly and Yearly are auto-renewable subscriptions; the first year of Yearly is offered at a lower price, paid up front. Subscriptions renew automatically unless canceled at least 24 hours before the period ends; manage or cancel in your App Store account settings. Prices are shown in the app and vary by region. Privacy Policy: https://veloz.dev/ringsizer-privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

PdfShot PDF to image converter4 screens
Ringbox4 screens

Verdict

The call

The clearest difference is ads: Ringbox at none against PdfShot PDF to image converter's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. PdfShot PDF to image converter sells 1 one-off in-app purchase and Ringbox sells 4 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

PdfShot PDF to image converter ships an update weekly, Ringbox every 2 weeks. The most recent releases landed on October 21, 2026 and October 29, 2026 respectively.

Scorecard1 real difference ยท 5 level
PdfShot PDF to image converter versus Ringbox: the parameters behind the verdict, then further details
ParameterPdfShot PDF to image converterRingbox
PriceFreeFree
Update frequencyWeekly โ€” betterEvery 2 weeks
AdsYesNo โ€” better
In-app purchasesYesYes
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS15.0 โ€” better16.4
Further details โ€” not scored
Size27 MB73 MB
Age rating4+4+
DeveloperNhu Dinh TaoJuan Antonio Veloz Gutierrez

In-app purchases

1 purchases

PdfShot PDF to image converter

One-time1
  • Remove Ads$4.99
4 purchases

Ringbox

Subscriptions2
  • Diamond plan โ€” Weekly7 Days trial$6.997 Days
  • Diamond plan โ€” Yearly$24.991 Year
One-time2
  • Diamond plan โ€” Lifetime deal$17.49
  • Diamond plan โ€” Lifetime$39.99

Questions

Is PdfShot PDF to image converter free?
PdfShot PDF to image converter is free to download, with in-app purchases available.
Is Ringbox free?
Ringbox is free to download, with in-app purchases available.
Do PdfShot PDF to image converter or Ringbox have ads?
PdfShot PDF to image converter shows ads; Ringbox does not.
Which is updated more often, PdfShot PDF to image converter or Ringbox?
PdfShot PDF to image converter ships an update weekly, and Ringbox every 2 weeks. Most recently, PdfShot PDF to image converter was updated on October 21, 2026 and Ringbox on October 29, 2026.

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