Comparison

NovaFlow Note vs iSub Player

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

Head to head
About

NovaFlow Note

Read full description

Key Features: 1. Ultimate Privatization: Support for self-hosting on any device. Your old phone can become your private server. 2. NovaFlow™ Real-time Sync: Seamless multi-terminal relay based on E2EE (End-to-End Encryption) channels. 3. Sovereign Data Security: Full-path military-grade AES encryption. Data never leaves your local environment, ensuring total protection from cloud leaks. 4. Intelligent Ecosystem Integration: 100% Markdown compatible, native AI-powered, with deep cross-browser extension integration. Subscription Member Benefits: 1. Unlock full cross-platform capabilities. Auto-Renewal Membership Instructions: 1. Subscription Cycle: 1 month (Monthly), 3 months (Quarterly), 12 months (Yearly). 2. Payment: Charged to iTunes Account upon confirmation of purchase. 3. Renewal: Account will be charged for renewal within 24 hours prior to the end of the current period. 4. Cancellation: To cancel, please turn off auto-renewal in iTunes/Apple ID settings at least 24 hours before the current period ends. 5. Privacy Policy: https://www.xinflow.cn/privacy.html 6. User Agreement: https://www.xinflow.cn/user_protocol.html 7. Auto-Renewal Agreement: https://www.xinflow.cn/autorenew_agreement.html

About

iSub Player

Features
Read full description

With features such as dual subtitles, an independent subtitle panel, subtitle-based seeking, sentence repetition, and favorites, iSub Player turns your local videos into effective learning materials. Whether you are learning English, Japanese, Korean, French, Spanish, or other languages, iSub Player provides a more efficient viewing and learning experience. 【Efficient Subtitle Learning】 • Display dual subtitles for side-by-side learning • Independent subtitle panel with free scrolling • Tap subtitles to jump to the exact position • Repeat individual sentences for practice • Shadowing, Record & Compare to Original • Save subtitles, screenshots, and audio clips with one tap • Quickly open AI websites to analyze subtitles and words • Subtitle Masking for a Pure Listening Environment 【Professional Local Media Player】 • Supports popular video formats including MP4, MKV, MOV, AVI, WEBM, FLV and More • Supports popular audio formats including MP3, AAC, FLAC, M4A, WAV, WMA and More • Supports multiple audio track switching and audio Delay • Supports embedded subtitles and external SRT, ASS subtitles, and LRC lyrics • Customizable subtitle delay, font size, and subtitle styles 【Powerful Media Library】 • Import local video and audio files • Automatically scan folders to create playlists • Browse with list and grid views • Multiple sorting options • Automatically save playback history • Quickly search media files • Convenient long-press action menu • Support batch selection and batch operations • Private folders with password protection 【Favorites & Learning Management】 • Save subtitle sentences, words, screenshots, and audio clips • Categorize learning materials • Quickly search saved content • Export and import favorites data without quality loss 【Professional Playback Experience】 • High-precision timeline seeking • Playback speed adjustment while maintaining audio pitch • Automatically remember playback progress • Gesture controls for brightness, volume, and playback position • Double-tap to fast forward or rewind • Pinch-to-zoom video display • Support playlist loop, single-item loop, and single playback modes 【Background Playback】 • Continue audio playback in the background • Lock screen media controls • System notification playback controls 【Rich Personalization Options】 • Multi-language interface • Customizable subtitle styles (font size, color, position, outline, background, bold, etc.) • Playback preferences • Translation settings • Light mode, dark mode, and system theme support • Customizable external keyboard shortcuts iSub Player focuses on local media playback and language learning. It does not provide any online video content. All media files come from the user's device or are imported by the user. Whether you are watching movies, TV shows, anime, or documentaries, or practicing listening, subtitle-based learning, speaking shadowing, and language skills, iSub Player is your ideal companion for turning local videos into effective learning resources.

Screenshots

NovaFlow Note3 screens
iSub Player4 screens

Verdict

The call

The clearest difference is ads: NovaFlow Note at none against iSub Player's shown. NovaFlow Note also leads on iOS requirement (13.0 vs 15.5). iSub Player's advantage is update cadence (fortnightly vs every 13 months). On price, in-app purchases and 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

Both are free to download. NovaFlow Note sells 4 in-app purchases, starting at $0.99 per month and iSub Player sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

NovaFlow Note ships an update every 13 months, iSub Player fortnightly. The most recent releases landed on October 2, 2026 and October 8, 2026 respectively.

Scorecard3 real differences · 3 level
NovaFlow Note versus iSub Player: the parameters behind the verdict, then further details
ParameterNovaFlow NoteiSub Player
PriceFreeFree
Update frequencyEvery 13 monthsFortnightly — better
AdsNo — betterYes
In-app purchasesYesYes
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS13.0 — better15.5
Further details — not scored
Size136 MB128 MB
Age rating4+4+
Developer海瑞 束Shandong HOPE Machine Co., Ltd.

In-app purchases

4 purchases

NovaFlow Note

Subscriptions3
  • 连续包月$0.991 Month
  • 连续包季$2.993 Months
  • 连续包年$9.991 Year
One-time1
  • 专业版$12.99
1 purchases

iSub Player

One-time1
  • Pro$4.99

Questions

Is NovaFlow Note free?
NovaFlow Note is free to download, with in-app purchases available.
Is iSub Player free?
iSub Player is free to download, with in-app purchases available.
Do NovaFlow Note or iSub Player have ads?
iSub Player shows ads; NovaFlow Note does not.
Which is updated more often, NovaFlow Note or iSub Player?
NovaFlow Note ships an update every 13 months, and iSub Player fortnightly. Most recently, NovaFlow Note was updated on October 2, 2026 and iSub Player on October 8, 2026.

Other comparisons