Comparison

NTK SAT Math II vs Antique Doll Identifier

Price, ratings, monetisation and update history for both apps, side by side — 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

Antique Doll Identifier

Instantly identify antique and collectible dolls using AI. Simply take a photo to discover a doll's origins, characteristics, historical significance, and even estimated value. Organize your collection and enhance your doll photos with this app.

Highlights
  • Instant doll identification worldwide
  • Accurate and detailed identification
  • Doll value estimation
  • Collection organization
  • Photo enhancement tools
Features
Read full description

Unlock the charm and history of your dolls with the AI-powered Doll Identifier app! Whether you're curious about an antique doll's origins or want details on a modern collectible, our app makes it easy. Just take a photo, and let our advanced AI technology identify your doll, giving you fascinating insights and valuable information instantly. Perfect for collectors, enthusiasts, and anyone intrigued by the stories behind their dolls, our app offers a wide range of details on various types of dolls. Discover their background, unique characteristics, and historical significance effortlessly. With the Doll Identifier app, each doll has a story waiting to be revealed Key features: - Identify Dolls Worldwide Instantly: Snap a photo to recognize dolls from around the globe in seconds. - Accurate & Detailed Identification: Receive precise results with in-depth details on each doll. - Enhance Doll Photos: Make your doll photos stand out with easy editing tools. - Estimate Doll Values: Get value estimates to understand each doll's worth. - Organize Your Collection: Save and catalog your doll collection effortlessly. Download Doll Identification App today and explore the world of doll collecting!! Your subscription will automatically renew unless you disable auto-renewal at least 24 hours before the end of the current period. Renewal charges will be applied within 24 hours before the period ends, and the cost will be confirmed at that time. If available, any unused time from a free trial will be forfeited once a subscription is purchased. You can manage your subscription and turn off auto-renewal in your Account Settings after making a purchase Terms of Use: https://sites.google.com/view/doll-identification-app/terms-of-service Privacy Policy: https://sites.google.com/view/doll-identification-app/privacy-policy

Screenshots

NTK SAT Math II4 screens
Antique Doll Identifier4 screens

Verdict

The call

The clearest difference is ads: NTK SAT Math II at none against Antique Doll Identifier's shown. NTK SAT Math II also leads on update cadence (every 8 days vs every 6 weeks) and iOS requirement (8.0 vs 14.0). 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. NTK SAT Math II sells 4 one-off in-app purchases and Antique Doll Identifier sells 4 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

NTK SAT Math II ships an update every 8 days, Antique Doll Identifier every 6 weeks. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

Scorecard3 real differences · 7 level
NTK SAT Math II versus Antique Doll Identifier: the parameters behind the verdict, then further details
ParameterNTK SAT Math IIAntique Doll Identifier
PriceFreeFree
Rating—4.6 (35 ratings) — better
Positive reviews—93.2% of reviews
Number of ratings—35 — better
Update frequencyEvery 8 days — betterEvery 6 weeks
AdsNo — betterYes
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better14.0
Further details — not scored
Size33 MB60 MB
Age rating4+4+
DeveloperNTK Academic GroupPhuong Thao Vu Thi

Bugs and requests

NTK SAT Math II

Not enough reviews yet to summarise bugs or requests.

Antique Doll Identifier

Reported bugs

2 issues
  • Login screen freezes
  • Incompatible with older devices

Requested features

2 requests
  • Dark mode option
  • Advanced analytics dashboard

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
4 purchases

Antique Doll Identifier

Subscriptions4
  • Premium Weekly$4.997 Days
  • Premium Monthly$12.991 Month
  • Flash Sale Yearly$29.991 Year
Show 1 more
  • Premium Yearly$39.991 Year

Questions

Is NTK SAT Math II free?
NTK SAT Math II is free to download, with in-app purchases available.
Is Antique Doll Identifier free?
Antique Doll Identifier is free to download, with in-app purchases available.
Do NTK SAT Math II or Antique Doll Identifier have ads?
Antique Doll Identifier shows ads; NTK SAT Math II does not.
Which is updated more often, NTK SAT Math II or Antique Doll Identifier?
NTK SAT Math II ships an update every 8 days, and Antique Doll Identifier every 6 weeks. Most recently, NTK SAT Math II was updated on November 2, 2026 and Antique Doll Identifier on November 4, 2026.

Other comparisons