# Hertz in CM vs Firstnum

The clearest difference is price: Firstnum at Free against Hertz in CM's $0.49. Firstnum also leads on update cadence (every 5 weeks vs every 8 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Firstnum is free to download; Hertz in CM costs $0.49 up front. Neither carries in-app purchases, so what you see is what you pay.

Hertz in CM ships an update every 8 months, Firstnum every 5 weeks. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Hertz in CM | Firstnum |
| --- | --- | --- |
| Price | $0.49 | **Free** |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/firstnum/id6751943843/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 5 weeks** |
| Monetization | — | Free |
| Size | 0 MB | 88 MB |
| Requires iOS | 13.0 | 13 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Stein Erik Nilsen](https://appshunter.io/developer/1737251651) | [ShangHai Stoneoim Intelligent Technology Co.,Ltd](https://appshunter.io/developer/1620996149) |

## What reviewers say

### Hertz in CM

[App page](https://appshunter.io/ios/app/hertz-in-cm/id6479808392)

**Features:** macOS Compatibility

**In-app purchases:** none


### Firstnum

[App page](https://appshunter.io/ios/app/firstnum/id6751943843)

This utility app is designed for managing device access and logins. It helps users securely log in to control their devices.

**Highlights:** Device login management, Secure access control, User authentication

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

**In-app purchases:** none


## Frequently asked questions

### Is Hertz in CM free?

Hertz in CM costs $0.49, with no in-app purchases.

### Is Firstnum free?

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

### Do Hertz in CM or Firstnum have ads?

Neither Hertz in CM nor Firstnum shows ads.

### Which is updated more often, Hertz in CM or Firstnum?

Hertz in CM ships an update every 8 months, and Firstnum every 5 weeks. Most recently, Hertz in CM was updated on November 4, 2026 and Firstnum on November 5, 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.*