# Vocab Master Pro vs Upstream

The clearest difference is rating: Vocab Master Pro at 5.0 against Upstream's 3.0. Vocab Master Pro also leads on update cadence (daily vs every 11 days) and iOS requirement (15.1 vs 17.0). Upstream's advantage is monetization model (free vs free with in-app purchases). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Vocab Master Pro sells 2 one-off in-app purchases and Upstream sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Vocab Master Pro holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Vocab Master Pro ships an update daily, Upstream every 11 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Vocab Master Pro | Upstream |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/vocab-master-pro/id6758121818/reviews)** | [3.0 (1 ratings)](https://appshunter.io/ios/app/upstream-data-training/id6759870186/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 11 days |
| Monetization | Free with in-app purchases | **Free** |
| Size | 47 MB | 15 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [HZF Web LLC](https://appshunter.io/developer/1131972125) | [Anh Ngoc Le](https://appshunter.io/developer/1878659639) |

## What reviewers say

### Vocab Master Pro

[App page](https://appshunter.io/ios/app/vocab-master-pro/id6758121818)

This app helps you learn and retain essential vocabulary for standardized tests like the SAT, ACT, and GRE. It uses a smart algorithm, offers four engaging quiz types, and tracks your progress with detailed analytics. Unlock achievements and focus on specific word sets for distraction-free studying.

**Highlights:** Smart learning algorithm adapts to user progress, Four engaging quiz types (definition matching, fill-in-the-blank, synonym, reverse matching), Detailed progress tracking with daily stats and mastery charts, Achievement and badge system for motivation, Focus Mode for distraction-free studying, Review sessions for mastered words

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One time deal - 50% | $2.99 | one-time |
| Premium - 2400+ Words | $5.99 | one-time |


### Upstream

[App page](https://appshunter.io/ios/app/upstream-data-training/id6759870186)

This app is a training tool for data analysts, focusing on critical thinking and asking the right questions before diving into data. It presents realistic workplace scenarios to challenge your analytical instincts and improve your decision-making skills in data-related tasks.

**Highlights:** Interactive workplace scenarios, Critical thinking challenges, Skill assessment and ranking, Progressive case unlocking, Stakeholder management training, Metric design practice

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sharper Thinking | $9.99 | one-time |
| Advanced Question Frameworks | $9.99 | one-time |
| Stakeholder Communication | $12.99 | one-time |
| Healthcare Analytics | $12.99 | one-time |
| SaaS Metrics Mastery | $12.99 | one-time |
| Financial Services Analytics | $12.99 | one-time |
| E-commerce Analytics | $12.99 | one-time |
| ML Reality Checks | $12.99 | one-time |
| Mastering Metric Traps | $14.99 | one-time |
| Analyst Interview Prep | $19.99 | one-time |


## Frequently asked questions

### Is Vocab Master Pro free?

Vocab Master Pro is free to download, with in-app purchases available.

### Is Upstream free?

Upstream is free to download, with in-app purchases available.

### Which has better reviews, Vocab Master Pro or Upstream?

Vocab Master Pro is rated higher. Vocab Master Pro averages 5.0 out of 5 from 2 ratings, while Upstream averages 3.0 from 1 ratings.

### Do Vocab Master Pro or Upstream have ads?

Neither Vocab Master Pro nor Upstream shows ads.

### Which is updated more often, Vocab Master Pro or Upstream?

Vocab Master Pro ships an update daily, and Upstream every 11 days. Most recently, Vocab Master Pro was updated on October 31, 2026 and Upstream on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*