Appworthy
App Store
Version 1.9.51 · 2026-09-03
Fresh updates are here! We’ve improved the experience and refreshed questions and content to keep everything accurate and up to date.
App Store rating4.6★113 ratings
PriceFreeListed price
Age4+Store age rating
Size75 MBiPhone download
CategoryEducation
DeveloperReev Tech Inc.
What we found
Full reportToo little checked to say Store information only. We haven’t analysed this app or read its reviews yet.
Money
- Free to download.
Not yet tested.
The store currently lists version 1.9.51, updated 2026-09-03.
Preview
Store screenshots supplied by the developer.
About this app
Master over 1,300 essential GRE® words with interactive flashcards and a complete GRE® study guide! Improve your vocabulary and learn every word you need to know for the GRE® step by step with different difficulty levels.
STUDY GUIDE
Learn more about the GRE® test, the scoring system, the Analytical Writing, Verbal Reasoning, Quantitative Reasoning and question categories. Get tips on how to get the highest score!
VOCABULARY FLASHCARDS
More than 1,300 essential words for the GRE® carefully picked by expert tutors. Use the Smart Round for personalized flashcards generated by our learning algorithm.
JUST LISTEN!
Use the audio-enabled lessons and easily follow each paragraph, word by word with better concentration.
TRACK TEST & STUDY PROGRESS
Keep track of your progress through the chapters and lessons. Easily pick up where you left off with the Continue Studying shortcut.…
From the developer’s store description.
For developers and the curious
The full report
The evidence, sources, measurements and versions behind every label above.
Findings and evidence
Not yet tested. No analysis has been published for this app. A missing label is not a clean bill of health.
What reviewers report
No review analysis published for this app.
Measurements
“Not assessed” means we could not measure it. It is never a zero and never a pass.
From store data and reviews
Developer replies to reviews
Not assessed
Fewer than 50 reviews scanned — too few to state a rate
Price in the store description
The store description doesn’t list prices (most don’t)
Cancelling, in the store description
The store description doesn’t say how to cancel (most don’t)
Themes reported by reviewers
Not assessed
This app's reviews have not been assessed yet
Five-star share of ratings
80–89% five-star
Arithmetic on the stores' own published rating counts. It says nothing about why the ratings fall where they do.
In the app package we scanned
No package has been scanned for this app, so nothing is published about what it ships. That is an absence of evidence, not a finding.
Sensitive permissions
Not assessed
No package has been scanned for this app
Analytics or tracking SDKs in the scanned package
Not assessed
No package has been scanned for this app
Advertising SDKs in the scanned package
Not assessed
No package has been scanned for this app
How we know
Supporting measurements: not a complete list of possible harms or positives. Measurement vocabulary 1.4 · how these are measured
Versions and dates analysed
Not yet tested. No analysis has been run for this app, so there is no version or date to report.
Store update history
Each store’s release notes, as the developer wrote them. They are the developer’s words, not ours.
Assessment record
- Status
- Not yet tested
- App identifier
gre-vocabulary-builder- Sources used
- None recorded
- Reviews read
- None recorded
- Package examined
- No package scan
- Human inspection
- Not completed
How we know
- Measurement vocabulary
- 1.4
Store facts
What the stores publish. Store ratings are the stores’ numbers, not Appworthy’s, and are never averaged across stores.
App Store
- Store rating
- 4.63 ★ · 113 ratings
- Version
- 1.9.51
- Updated
- 3 Sep 2026
- Price
- Free
- Age rating
- 4+
- Size
- 75 MB
- Developer
- Reev Tech Inc.
- Category
- Education
- Listing price
- Free
No itemized purchase list is available for this listing.
Method and limits
What a missing label means
Not yet tested. No analysis has been published for this app, so there is no method to describe for it yet. A missing label is not a clean bill of health: it means nothing has been read, not that nothing is wrong.
Limits of this report
- A package scan is static. It identifies code and text in one Android build. It does not measure a live ad session, test a deletion request, or count the steps needed to cancel.
- Reviews keep their sample. A review-only charge shows distinct reviewers, the share and the sample size, and is published only once it clears that label’s published threshold. Calibration labels are machine-drafted and not yet confirmed by a person.
- Not assessed is a state. It is never a zero and never a pass.
- A missing label is not a clean bill of health. It means the evidence did not support one, not that the app is problem-free.
Not yet human-reviewed. A human review gives an app hands-on, recorded measurements. None has been run for this app. Hands-on inspections are not yet open.
Request a correction
Write to [email protected], or use the form. Name the finding, the app version and the evidence that needs correcting. Factual corrections are free and never depend on buying anything.