Comparison

NTK SAT Math II vs vocTV

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

Head to head
About

NTK SAT Math II

Features
Read full description

This NTK SAT Math II app is designed for students taking the SAT Math II examination offered by College Board. This app is an ideal resource for self-study and revision. There are two app versions available: Lite and Pro. You are now viewing the Lite version. In this app, users can try out Test 1 for free and make an in-app purchase for Tests 2-5 individually. In the Pro app, users can purchase Tests 1-5 together at a reduced price. While the contents and features in both apps are entirely the same, the different versions are designed to provide greater flexibility for students in matching their study needs. Key features: > 5 complete SAT Math II tests with 250 SAT style questions > After submission, tests will be marked automatically and you will receive a predicted SAT score > You will be given a score report with detailed breakdown of each section highlighting your strengths and weaknesses Questions in this app are written by highly experienced Mathematics specialists in NTK's Mathematics Department (Main author: Derek Yim, BSc). This app is designed and developed by Will Yu, Gary Chan, Tony Chan and Anthony Mok. Please visit our website: http://www.ntk.edu.hk/

About

vocTV

Stream and browse diverse video content from c3voc with a comfortable, familiar interface. Enjoy features like iCloud sync, multiple audio tracks, closed captions, and offline downloads.

Highlights
  • iCloud synchronization for playback and watchlist
  • Multiple audio tracks and closed captions
  • Live stream viewing
  • Offline video downloads
  • Easy content browsing
Read full description

"vocTV" offers you browsing and streaming of the diverse video content of c3voc. The focus of this app is to deliver a comfortable experience as you already know it from other streaming platforms. Brief highlights : โ€ข iCloud synchronisation for playback positions and your watchlist (if wanted) โ€ข Playback with multiple audio tracks and closed captions (if available) โ€ข Shows live streams (if available) โ€ข Download videos for later โ€ข Browse content easily Have fun watching! Note: This is not an official application of c3voc! All audiovisual content is provided by c3voc.

Screenshots

NTK SAT Math II4 screens
vocTV4 screens

Verdict

The call

The clearest difference is update cadence: NTK SAT Math II at every 8 days against vocTV's every 6 months. NTK SAT Math II also leads on iOS requirement (8.0 vs 16.0). On price, ads, 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. NTK SAT Math II sells 4 one-off in-app purchases and vocTV sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

NTK SAT Math II ships an update every 8 days, vocTV every 6 months. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

Scorecard2 real differences ยท 6 level
NTK SAT Math II versus vocTV: the parameters behind the verdict, then further details
ParameterNTK SAT Math IIvocTV
PriceFreeFree
Positive reviewsโ€”77.8% of reviews
Update frequencyEvery 8 days โ€” betterEvery 6 months
AdsNoNo
In-app purchasesYesYes
Monetizationโ€”Free with in-app purchases
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS8.0 โ€” better16.0
Further details โ€” not scored
Size33 MB6 MB
Age rating4+12+
DeveloperNTK Academic GroupRainer Killinger

In-app purchases

4 purchases

NTK SAT Math II

One-time4
  • SAT Math Set 2$0.99
  • SAT Math Set 3$0.99
  • SAT Math Set 4$0.99
Show 1 more
  • SAT Math Set 5$0.99
1 purchases

vocTV

One-time1
  • Custom Color$2.99

Questions

Is NTK SAT Math II free?
NTK SAT Math II is free to download, with in-app purchases available.
Is vocTV free?
vocTV is free to download, with in-app purchases available.
Do NTK SAT Math II or vocTV have ads?
Neither NTK SAT Math II nor vocTV shows ads.
Which is updated more often, NTK SAT Math II or vocTV?
NTK SAT Math II ships an update every 8 days, and vocTV every 6 months. Most recently, NTK SAT Math II was updated on October 26, 2026 and vocTV on October 25, 2026.

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