# Vocab Word Study vs Reader Meter

The clearest difference is review sentiment: Vocab Word Study at 100% against Reader Meter's 0%. Vocab Word Study also leads on price (Free vs $4.00) and update cadence (every 2 days vs every 6 months). Reader Meter's advantage is iOS requirement (15.1 vs 18.0). On ads, in-app purchases and device support there is nothing between them.

Vocab Word Study is free to download; Reader Meter costs $4.00 up front. Neither carries in-app purchases, so what you see is what you pay.

Vocab Word Study ships an update every 2 days, Reader Meter every 6 months. The most recent releases landed on September 28, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Vocab Word Study | Reader Meter |
| --- | --- | --- |
| Price | **Free** | $4.00 |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/vocab-word-study/id6740285714/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 6 months |
| Monetization | **Free** | Paid |
| Size | 4 MB | 36 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [jsdf, LLC](https://appshunter.io/developer/419265004) | [Savannah Ngo](https://appshunter.io/developer/1812219574) |

## What reviewers say

### Vocab Word Study

[App page](https://appshunter.io/ios/app/vocab-word-study/id6740285714)

Learn new words daily with short, engaging lessons. Practice using words in sentences with AI-powered feedback to improve comprehension and writing skills. Ideal for students and language learners.

**Highlights:** Learn 3 new words daily, Short, few-minute lessons, Sentence usage practice, Real-time AI feedback, Standardized test prep focus, ESL learning support

**Features:** macOS Compatibility

**In-app purchases:** none


### Reader Meter

[App page](https://appshunter.io/ios/app/reader-meter/id6745434060)

Assess a child's reading fluency and accuracy using any book or passage. Upload text via camera, mark errors as they read, and get instant calculations for accuracy and fluency. Connect to a web app for student management and error analysis.

**Highlights:** Oral Reading Fluency (ORF) assessment, Camera text upload, Error marking during reading, Automatic accuracy and fluency calculation, Web app integration for student management, Error analysis for instructional insights

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Vocab Word Study free?

Vocab Word Study is free to download, with no in-app purchases.

### Is Reader Meter free?

Reader Meter costs $4.00, with no in-app purchases.

### Do Vocab Word Study or Reader Meter have ads?

Neither Vocab Word Study nor Reader Meter shows ads.

### Which is updated more often, Vocab Word Study or Reader Meter?

Vocab Word Study ships an update every 2 days, and Reader Meter every 6 months. Most recently, Vocab Word Study was updated on September 28, 2026 and Reader Meter on September 27, 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.*