# Math Shelf vs Napa Valley USD

The clearest difference is in-app purchases: Napa Valley USD at none against Math Shelf's 10. Napa Valley USD also leads on update cadence (weekly vs every 4 months). Math Shelf's advantage is rating (4.7 vs 4.3) and iOS requirement (12.0 vs 17.0). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Math Shelf sells 10 in-app purchases, starting at $4.99 per month. Napa Valley USD asks for nothing beyond the download.

Math Shelf holds the better App Store score, 4.7 against 4.3. Both are backed by a comparable volume of ratings — 15 and 24 respectively.

Math Shelf ships an update every 4 months, Napa Valley USD weekly. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Math Shelf | Napa Valley USD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (15 ratings)](https://appshunter.io/ios/app/math-shelf-early-math-mastery/id940278648/reviews)** | [4.3 (24 ratings)](https://appshunter.io/ios/app/napa-valley-usd/id1417652928/reviews) |
| Number of ratings | 15 | **24** |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 380 MB | 154 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [John Schacter](https://appshunter.io/developer/940278647) | [ParentSquare](https://appshunter.io/developer/908126682) |

## What reviewers say

### Math Shelf

[App page](https://appshunter.io/ios/app/math-shelf-early-math-mastery/id940278648)

This app provides an experimentally proven program to enhance early mathematics achievement for preschool and kindergarten students. It offers on-level instruction through adaptive learning and placement tests, aligning with Common Core Standards.

**Highlights:** Experimentally proven to increase math achievement, Common Core Aligned content, Adaptive learning and placement tests, Cloud-based syncing for school and home, Free 7-day trial, Supports iPhone, iPad, and iPod

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Access | $4.99 | per month |
| 1 Year Access | $41.99 | per year |
| 1 Students Monthly Subscription | $1.99 | one-time |
| 1 Student Monthly Subscription | $2.99 | one-time |
| 2 Students Monthly Subscription | $3.99 | one-time |
| 3 Students Monthly Subscription | $5.99 | one-time |
| 2 Students Monthly Subscription | $5.99 | one-time |
| 3 Students Monthly Subscription | $8.99 | one-time |
| 3 Students Subscription | $9.99 | one-time |
| 4 Students Monthly Subscription | $11.99 | one-time |


### Napa Valley USD

[App page](https://appshunter.io/ios/app/napa-valley-usd/id1417652928)

This app connects schools and families, providing a central hub for all important communications. It ensures families receive timely updates, alerts, and messages from teachers and the district, fostering student success.

**Highlights:** School news and classroom updates, Important alerts and notices, Direct messaging with teachers, Group conversations, Volunteer and conference sign-ups, Absence and tardy responses, Fee and invoice payments

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

**In-app purchases:** none


## Frequently asked questions

### Is Math Shelf free?

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

### Is Napa Valley USD free?

Napa Valley USD is free to download, with no in-app purchases.

### Which has better reviews, Math Shelf or Napa Valley USD?

Math Shelf is rated higher. Math Shelf averages 4.7 out of 5 from 15 ratings, while Napa Valley USD averages 4.3 from 24 ratings.

### Do Math Shelf or Napa Valley USD have ads?

Neither Math Shelf nor Napa Valley USD shows ads.

### Which is updated more often, Math Shelf or Napa Valley USD?

Math Shelf ships an update every 4 months, and Napa Valley USD weekly. Most recently, Math Shelf was updated on November 1, 2026 and Napa Valley USD on November 4, 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.*