Comparison

equivalence principle vs MasterNow

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

Head to head
About

equivalence principle

Features
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This app represents the equivalence principle which states that gravitational and inertial forces are of a similar nature and often indistinguishable. Left rocket is moving up with constant acceleration a, and right rocket is on the some planet where the gravitational acceleration is g. If a is equal to g, the motion of a ball which is dropped in the left rocket is the same as the motion of a ball which is dropped in the right rocket; two balls experience the same constant acceleration motion. This is the simple demonstration of the equivalence principle. This app doesn't simulate the whole motion of a ball. Only falling motion is intended to show the equivalence principle.

About

MasterNow

Features
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MasterNow is a learning app for exploring many subjects in one place. It helps you study with structured topics, short explanations, progress tracking, and interactive activities while you read. Use MasterNow to: - Explore subject libraries across business, psychology, science, English, personal development, and more. - Read organized topics and subtopics in a simple learning format. - Practice with activities such as multiple choice, true/false, fill in the blank, matching columns, rearrange, flashcards, and comprehension where available. - Track progress, streaks, reading time, and recently visited topics. - Use helpful study support such as text-to-speech where available. MasterNow includes free learning experiences. Optional premium subscriptions unlock more subject access and can remove ads while active. You can restore purchases in the app and manage or cancel subscriptions through your Apple ID subscription settings. Features and content may vary by subject and availability. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.masternow.app/privacy-policy

Screenshots

equivalence principle2 screens
MasterNow4 screens

Verdict

The call

The clearest difference is in-app purchases: equivalence principle at none against MasterNow's 4. equivalence principle also leads on ads (none vs shown). On price, device support and iOS requirement 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. MasterNow sells 4 in-app purchases, starting at $19.99 per 7 days. equivalence principle asks for nothing beyond the download.

Scorecard2 real differences ยท 3 level
equivalence principle versus MasterNow: the parameters behind the verdict, then further details
Parameterequivalence principleMasterNow
PriceFreeFree
AdsNo โ€” betterYes
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPadiPhone, iPad, iPod โ€” better
Requires iOS16.015.0 โ€” better
Further details โ€” not scored
Size0 MB58 MB
Age rating4+17+
DeveloperSungjun KimTotal Cyber Tech (Private) Limited

In-app purchases

None

equivalence principle

No in-app purchases

4 purchases

MasterNow

Subscriptions4
  • Full Access Weekly$19.997 Days
  • Full Access Monthly$49.991 Month
  • Full Access 6 Months$99.996 Months
Show 1 more
  • Full Access Yearly$149.991 Year

Questions

Is equivalence principle free?
equivalence principle is free to download, with no in-app purchases.
Is MasterNow free?
MasterNow is free to download, with in-app purchases available.
Do equivalence principle or MasterNow have ads?
MasterNow shows ads; equivalence principle does not.

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