# Isaac Libraries vs NMCM

The clearest difference is in-app purchases: Isaac Libraries at none against NMCM's 7. NMCM's advantage is update cadence (fortnightly vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. NMCM sells 7 one-off in-app purchases. Isaac Libraries asks for nothing beyond the download.

Isaac Libraries ships an update every 2 months, NMCM fortnightly. The most recent releases landed on October 3, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Isaac Libraries | NMCM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Size | 50 MB | 44 MB |
| Requires iOS | **15.6** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Isaac Regional Council](https://appshunter.io/developer/1634577093) | [Nadine Muller](https://appshunter.io/developer/1754437750) |

## What reviewers say

### Isaac Libraries

[App page](https://appshunter.io/ios/app/isaac-libraries/id1634577091)

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

**In-app purchases:** none


### NMCM

[App page](https://appshunter.io/ios/app/nmcm/id6499455745)

**Features:** Family Sharing

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MASTER YOUR TIME MASTERLCASS | $149.00 | one-time |
| BRINGING SEX SPARK & FIRE BACK | $149.00 | one-time |
| YOUR RISEN ERA MASTERCLASS | $199.00 | one-time |
| CODES | $299.00 | one-time |
| UNFKNSTOPPABLE | $399.00 | one-time |
| RECONNECT | $399.00 | one-time |
| THE ONE (MASTERCLASS) | $599.00 | one-time |


## Frequently asked questions

### Is Isaac Libraries free?

Isaac Libraries is free to download, with no in-app purchases.

### Is NMCM free?

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

### Do Isaac Libraries or NMCM have ads?

Neither Isaac Libraries nor NMCM shows ads.

### Which is updated more often, Isaac Libraries or NMCM?

Isaac Libraries ships an update every 2 months, and NMCM fortnightly. Most recently, Isaac Libraries was updated on October 3, 2026 and NMCM on October 2, 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.*