# ThirtyB — SSAT & ISEE Vocabulary

> Vocabulary builder for standardized tests using adaptive learning and gamified challenges. (iPhone/iPad app by The Tasma Group, LLC.)

- Source: https://appshunter.io/ios/app/thirtyb/id6746424055 (this page in markdown: same URL + `.md`)
- Developer: [The Tasma Group, LLC](https://appshunter.io/developer/1816826980)
- Category: Education
- Price: Free with in-app purchases
- Rating: 5.00/5 from 3 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 18.2 · 22 MB
- Languages: English
- Released: 2025-12-04
- Data updated: 2026-06-01
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/thirtyb/id6746424055/reviews.md

## What is ThirtyB?

Modeled after U.S. standardized test formats, it challenges users with synonym-based multiple-choice questions across five unique modes. Each day, players get 30 minutes to earn points, climb leaderboards, and master over 3,000 words using adaptive learning, spaced repetition, and instant feedback. With analytics, social accountability, and handwriting-powered bonus boosters, ThirtyB makes deep learning fast, focused, and fun.

Terms of Use: https://30b.ai/?page_id=71
Privacy Policy: https://30b.ai/?page_id=3#

## Key features

- Standardized test format questions
- Adaptive learning and spaced repetition
- Over 3,000 vocabulary words
- Multiple game modes
- Leaderboards and progress tracking
- Handwriting bonus boosters

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Monthly Premium Plan | $5.99 | per month |
| Yearly Premium Plan | $59.99 | per year |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/thirtyb/id6746424055/reviews.md

### 5/5 — Great for Kids

*2026-02-11*

I use this app to build the vocabulary for my 4th grade through 8th grade students who need to take the ISEE and SSAT Admissions tests.  It works really well!  Students like the fast pace, the levels and the challenge!

### 5/5 — Great app to get kids ready for test day

*2025-12-04*

Intuitive app that makes learning word synonyms fast, focused and fun!

## Frequently asked questions about ThirtyB

### What is ThirtyB's learning methodology?

ThirtyB uses adaptive learning and spaced repetition to help users master vocabulary. It presents synonym-based multiple-choice questions modeled after U.S. standardized tests, providing instant feedback to reinforce learning.

### How does ThirtyB track user progress?

ThirtyB offers analytics and progress tracking features. Users can earn points, climb leaderboards, and monitor their mastery of over 3,000 words, providing a clear view of their learning journey.

### What are the subscription options for ThirtyB?

ThirtyB offers a Monthly Premium Plan for $5.99 per month and a Yearly Premium Plan for $59.99 per year, providing access to enhanced features and content.

### Is ThirtyB suitable for younger learners?

Yes, ThirtyB is rated for ages 4 and up, making it suitable for a wide range of students. Its engaging format and gamified elements can appeal to younger learners preparing for tests.

### How often is ThirtyB updated?

The latest version of ThirtyB is 1.3, and it was last updated on February 25, 2026. This indicates a recent update, suggesting ongoing development and support for the application.

### Does ThirtyB have ads?

No, ThirtyB does not contain advertisements. The app is free to download and use, with optional in-app purchases for premium features.

### What devices support ThirtyB?

ThirtyB is available on iPhones and iPads, offering a consistent learning experience across Apple mobile devices.

### What makes ThirtyB different from other vocabulary apps?

ThirtyB differentiates itself by directly mimicking U.S. standardized test formats and incorporating unique features like handwriting-powered bonus boosters and social accountability, in addition to adaptive learning.

## Version history (last 5 releases)

### 1.4.1 — 2026-05-22

Bug fixes

### 1.3 — 2026-02-25

We increased the depth of the feedback given after each test taken.

### 1.2 — 2026-01-29

Version 1.2 includes the following updates:


- Added offline mode
- Download content once while online
- Study and take tests without internet
- Progress syncs automatically when reconnected
- Improved question feedback
- Now shows explanations for both correct and incorrect answers
- Highlights key concepts even on correctly answered questions (including lucky guesses)
- Minor performance and stability fixes

### 1.1 — 2025-12-26

This release brings several bug fixes and valuable functionality enhancements to improve your experience. Supporters such as friends, tutors, and parents can now view the specific words that their connected 30B pals got wrong in particular tests, enabling more targeted and real-time feedback on challenging vocabulary. Additionally, users can easily toggle between a global leaderboard showcasing top scores among all players and a personalized leaderboard limited to their 30B pals for friendly competition within their network. We've also refined the daily 30-minute score calculation: it now selects the highest-scoring 30-minute window from your total playtime throughout the day (even if non-consecutive), automatically prioritizing the best performance. This means you can earn incremental points by completing additional tests later in the day that outperform earlier ones within a similar timeframe. Download the update today and elevate your learning journey!

### 1.0 — 2025-12-04

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*