Comparison

Quick Unit Currency vs PDF AI

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

Head to head
About

Quick Unit Currency

Features
Read full description

Quick Unit Currency makes everyday conversions simple and clear. You can convert units from multiple categories and check live currency rates in one easy view. The app is designed to give fast results with a clean and lightweight interface, helping you convert values without any extra steps. Features Convert units across major categories Live currency exchange rates Offline currency mode Quick search for any unit or currency Favorite your most used items Simple and easy interface Quick Unit Currency aims to provide a smooth and reliable conversion experience for daily use. Keywords (comma-separated): unitconvert,unitconverter,currency,forex,ratecheck,quickconvert,measure,valueswap,metric,calculator,convertunits,currencytool,exchange,unitcalc,conversion

About

PDF AI

Features
Read full description

Powerful PDF Editor with AI support is here for you. PDF AI: Edit, Read & Analyse is powerful PDF editing tool which gives a lot of powerful and advanced PDF editing features. Easy to use with powerful advanced features make PDF AI: Edit, Read & Analyse your perfect editing tool. Scan all type of your documents, read documents with elegant preview, manage your documents with ease, let AI read and analyse books, documents for you. Get summary of your document with a few taps, ask AI about questions of your documents, make it easier to read, understand and analyse your documents with this powerful AI based PDF app. A complete solution for PDF tasks toolkit. Signin to this app and access your documents anytime, anywhere. Just need to login to the app and access your documents. Conversion of documents is as easy as never before. Just upload your documents and convert as you want. Merge PDFs with a few clicks. Organise your pages, compress to save disk space, add signatures and fill forms. Convert PDF to image, extract text, convert PDF to text, use OCR. All these features in this single PDF editor. Upload your document/PDF in AI document Assistant and see the magic. you can summarise your document, Ask questions about it, translate it, ask AI to explain it and extract data from that document. All with just few clicks. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sites.google.com/view/appsonapple/home

Screenshots

Quick Unit Currency4 screens
PDF AI4 screens

Verdict

The call

The clearest difference is ads: Quick Unit Currency at none against PDF AI's shown. Quick Unit Currency also leads on iOS requirement (13.0 vs 15.5). PDF AI's advantage is update cadence (every 3 days vs every 3 months). On price, 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. Quick Unit Currency sells 1 one-off in-app purchase and PDF AI sells 6 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Quick Unit Currency ships an update every 3 months, PDF AI every 3 days. The most recent releases landed on September 25, 2026 and June 6, 2026 respectively.

Scorecard3 real differences ยท 3 level
Quick Unit Currency versus PDF AI: the parameters behind the verdict, then further details
ParameterQuick Unit CurrencyPDF AI
PriceFreeFree
Update frequencyEvery 3 monthsEvery 3 days โ€” better
AdsNo โ€” betterYes
In-app purchasesYesYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 โ€” better15.5
Further details โ€” not scored
Size25 MB142 MB
Age rating4+4+
DeveloperMBDTECH LTDSaad Ameen

In-app purchases

1 purchases

Quick Unit Currency

One-time1
  • remove_ads_lifetime_unit$1.99
6 purchases

PDF AI

Subscriptions1
  • Basic Monthly Subscription$9.991 Month
One-time5
  • Remove Ads Forever$9.99
  • 1500 AI Credits$9.99
  • 2500 AI Credits$14.99
Show 2 more
  • 4000 AI Credits$19.99
  • 10000 AI Credits$29.99

Questions

Is Quick Unit Currency free?
Quick Unit Currency is free to download, with in-app purchases available.
Is PDF AI free?
PDF AI is free to download, with in-app purchases available.
Do Quick Unit Currency or PDF AI have ads?
PDF AI shows ads; Quick Unit Currency does not.
Which is updated more often, Quick Unit Currency or PDF AI?
Quick Unit Currency ships an update every 3 months, and PDF AI every 3 days. Most recently, Quick Unit Currency was updated on September 25, 2026 and PDF AI on June 6, 2026.

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