Comparison

SubFloat vs ePdfUB

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

Head to head
About

SubFloat

Enhance language learning by displaying up to three subtitle tracks simultaneously on streaming services. Understand nuances, expand vocabulary in context, and customize the viewing experience.

Highlights
  • Dual subtitles on Netflix and YouTube
  • Floating subtitle overlay
  • Always-on script navigator
  • Optimized for language learning
  • Customizable subtitle appearance
Features
Read full description

SubFloat: Multilingual Subtitles for Language Learning SubFloat is a powerful tool designed for language learners who want to master a new language while enjoying their favorite content. It brings bilingual subtitles to popular streaming services, making it easier than ever to bridge the gap between watching and learning. Whether you're studying Japanese, Korean, Chinese, or any other language, SubFloat allows you to display upto 3 subtitle tracks simultaneously—your target language and your native language—helping you understand every nuance and expand your vocabulary in context. Key Features: - Dual Subtitles: View two languages at once on Netflix, Disney+, Prime Video, and YouTube. - Floating Interface: A clean, non-intrusive subtitle overlay that moves with you. - Always-On Script Navigator: Browse and search subtitles from the floating script window. - Subtitle Sharing: Export up to 3 language subtitles into a single text file to study. - Optimized for Learning: Perfect for improving listening comprehension and vocabulary. - Fully Customizable: Adjust subtitle size, color, and position to fit your screen. Turn every movie night into a language lesson. Experience the future of bilingual viewing with SubFloat.

About

ePdfUB

Features
Read full description

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

Screenshots

SubFloat4 screens
ePdfUB3 screens

Verdict

The call

The clearest difference is price: SubFloat at Free against ePdfUB's $3.99. SubFloat also leads on in-app purchases (none vs 2) and update cadence (fortnightly vs every 2 months). ePdfUB's advantage is ads (none vs shown). On device support 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

SubFloat is free to download; ePdfUB costs $3.99 up front. ePdfUB sells 2 in-app purchases, starting at $0.99 per year. SubFloat asks for nothing beyond the download.

UpkeepUpdate frequency

SubFloat ships an update fortnightly, ePdfUB every 2 months. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.

Scorecard5 real differences · 5 level
SubFloat versus ePdfUB: the parameters behind the verdict, then further details
ParameterSubFloatePdfUB
PriceFree — better$3.99
Rating4.0 (3 ratings) — better—
Positive reviews88.9% of reviews—
Number of ratings3 — better—
Update frequencyFortnightly — betterEvery 2 months
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.6 — better26.2
Further details — not scored
Size10 MB7 MB
Age rating4+4+
Developereditoy Inc.Chia Hsien Wei

In-app purchases

None

SubFloat

No in-app purchases

2 purchases

ePdfUB

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

Questions

Is SubFloat free?
SubFloat is free to download, with no in-app purchases.
Is ePdfUB free?
ePdfUB costs $3.99, and also offers in-app purchases.
Do SubFloat or ePdfUB have ads?
SubFloat shows ads; ePdfUB does not.
Which is updated more often, SubFloat or ePdfUB?
SubFloat ships an update fortnightly, and ePdfUB every 2 months. Most recently, SubFloat was updated on October 31, 2026 and ePdfUB on October 25, 2026.

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