Comparison

ePdfUB vs Polygotcha

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

Head to head
About

ePdfUB

Features
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Say goodbye to rigid, zoom-and-scroll PDFs. All processing happens 100% locally on your deviceβ€”ensuring absolute privacy and offline capability. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Polygotcha

Features
Read full description

PolyGotcha is a keyboard that translates as you type. Write in your own language, pause, and the translation appears right above the keys. Tap it to swap your text before you hit send. It works everywhere you type: Messages, WhatsApp, Instagram, Mail, dating apps, anywhere. No copying, no pasting, no switching to a translator app and back. HOW IT WORKS 1. Type in your language. 2. Pause for a moment. The translation appears in the bar above the keys. 3. Tap it to replace your text, or turn on automatic mode and just type. Two-way translation reads what you typed and picks the direction on its own. Reply to a French message in English and send it in French; when you type French, it turns into English. WORKS ON ANY IPHONE Two on-device models. Apple Intelligence handles nuance and tone on iPhone 15 Pro and later. Apple Translation runs on every other iPhone, so an older device is not locked out. PICK YOUR TONE Neutral, casual, formal, or street. Street tone writes the way people actually text, with everyday slang instead of textbook phrasing. Tone is available on the Apple Intelligence model. PRIVATE BY DESIGN Translation runs entirely on your iPhone. Your words never leave your device: no servers, no accounts, no tracking. PolyGotcha has no backend to send them to. Full Access is optional and off by default. Leave it off and iOS itself keeps the keyboard off the network. Turn it on only if you choose the Apple Translation model, which iOS will not open to a keyboard otherwise. It is still on-device translation either way. LANGUAGES Translate between English, French, Spanish, Portuguese, German, Italian, Japanese, Korean, Chinese, and more. The exact list depends on your device and iOS version. FREE AND PRO Typing with the PolyGotcha keyboard is free, always, and so are your first 10 translations. After that Pro unlocks unlimited translation: 7 days free, then $1.99 a month, $11.99 a year, or $24.99 once for lifetime access. GOOD TO KNOW PolyGotcha needs iOS 26 or later. The Apple Intelligence model also needs an Apple Intelligence device (iPhone 15 Pro or newer); on any other iPhone, choose Apple Translation in the app's Settings tab. Translations come from on-device AI models, which can make mistakes, so double-check important messages. Privacy Policy: https://polygotcha.com/privacy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

ePdfUB3 screens
Polygotcha4 screens

Verdict

The call

The clearest difference is price: Polygotcha at Free against ePdfUB's $3.99. Polygotcha also leads on update cadence (every 2 days vs every 2 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Polygotcha is free to download; ePdfUB costs $3.99 up front. ePdfUB sells 2 in-app purchases, starting at $0.99 per year and Polygotcha sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

ePdfUB ships an update every 2 months, Polygotcha every 2 days. The most recent releases landed on November 5, 2026 and November 10, 2026 respectively.

Scorecard2 real differences Β· 4 level
ePdfUB versus Polygotcha: the parameters behind the verdict, then further details
ParameterePdfUBPolygotcha
Price$3.99Free β€” better
Update frequencyEvery 2 monthsEvery 2 days β€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.226.0 β€” better
Further details β€” not scored
Size7 MB4 MB
Age rating4+4+
DeveloperChia Hsien WeiIGOR BRUNELI MOREIRA

In-app purchases

2 purchases

ePdfUB

Subscriptions1
  • Yearly$0.991 Year
One-time1
  • lifetime$2.99
3 purchases

Polygotcha

Subscriptions2
  • Polygotcha Pro Monthly7 Days trial$1.991 Month
  • PolyGotcha Pro Yearly$11.991 Year
One-time1
  • Polygotcha Pro Lifetime$24.99

Questions

Is ePdfUB free?
ePdfUB costs $3.99, and also offers in-app purchases.
Is Polygotcha free?
Polygotcha is free to download, with in-app purchases available.
Do ePdfUB or Polygotcha have ads?
Neither ePdfUB nor Polygotcha shows ads.
Which is updated more often, ePdfUB or Polygotcha?
ePdfUB ships an update every 2 months, and Polygotcha every 2 days. Most recently, ePdfUB was updated on November 5, 2026 and Polygotcha on November 10, 2026.

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