# NCTM Central vs MS 577 Conselyea Preparatory

The clearest difference is iOS requirement: NCTM Central at 13.0 against MS 577 Conselyea Preparatory's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

NCTM Central ships an update every 2 months, MS 577 Conselyea Preparatory every 5 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | NCTM Central | MS 577 Conselyea Preparatory |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (16 ratings)](https://appshunter.io/ios/app/nctm-central/id1457158930/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Free | — |
| Size | 37 MB | 163 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [National Council of Teachers of Mathematics](https://appshunter.io/developer/368205972) | [Solved Education Consultancy, LLC](https://appshunter.io/developer/1506645558) |

## What reviewers say

### NCTM Central

[App page](https://appshunter.io/ios/app/nctm-central/id1457158930)

This app provides math educators with resources and information for professional development. Access details on conferences, connect with peers, and manage event schedules. It supports high-quality mathematics teaching and learning for all students.

**Highlights:** Conference and event information, Speaker and exhibitor details, In-app messaging for attendees, Session reminders and alerts, Note-taking for event sessions, Social media integration

**Features:** macOS Compatibility

**In-app purchases:** none


### MS 577 Conselyea Preparatory

[App page](https://appshunter.io/ios/app/ms-577-conselyea-preparatory/id6744408420)

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

**In-app purchases:** none


## Frequently asked questions

### Is NCTM Central free?

NCTM Central is free to download, with no in-app purchases.

### Is MS 577 Conselyea Preparatory free?

MS 577 Conselyea Preparatory is free to download, with no in-app purchases.

### Do NCTM Central or MS 577 Conselyea Preparatory have ads?

Neither NCTM Central nor MS 577 Conselyea Preparatory shows ads.

### Which is updated more often, NCTM Central or MS 577 Conselyea Preparatory?

NCTM Central ships an update every 2 months, and MS 577 Conselyea Preparatory every 5 weeks. Most recently, NCTM Central was updated on October 24, 2026 and MS 577 Conselyea Preparatory on October 25, 2026.

---

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