# JM Operator vs Cat Voice Library

The clearest difference is in-app purchases: JM Operator at none against Cat Voice Library's 4. Cat Voice Library's advantage is update cadence (every 4 days vs every 24 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Cat Voice Library sells 2 one-off in-app purchases. JM Operator asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for JM Operator against 5.0 for Cat Voice Library. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

JM Operator ships an update every 24 months, Cat Voice Library every 4 days. The most recent releases landed on October 1, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | JM Operator | Cat Voice Library |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/jm-operator/id1424898203/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/cat-voice-library/id6741472565/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 4 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 29 MB | 45 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jacek Nowak](https://appshunter.io/developer/1424898202) | [Shanghai Rutang Internet Technology Co., Ltd.](https://appshunter.io/developer/1198120052) |

## What reviewers say

### JM Operator

[App page](https://appshunter.io/ios/app/jm-operator/id1424898203)

Monitor and control machines remotely via a GSM system. Track earnings, analyze profits, and manage machine settings from anywhere. Receive real-time alerts for malfunctions or low ticket levels.

**Highlights:** Remote machine monitoring, Real-time profit analysis, Machine control functions, Employee settlement management, Multi-currency support, Malfunction alerts, In-app parts shop

**Features:** macOS Compatibility

**In-app purchases:** none


### Cat Voice Library

[App page](https://appshunter.io/ios/app/cat-voice-library/id6741472565)

This utility app simulates various cat vocalizations to interact with felines. It includes a knowledge base on cat communication and can be used to test a cat's reaction to different sounds. Engage with your pets or attract strays with a variety of meows.

**Highlights:** Cat sound simulation, Attract stray cats, Soothe stressed pets, Cat reaction testing, Cat raising knowledge base, Variety of cat vocalizations

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| unlock all voices | $0.99 | one-time |
| Donate One Dollar for Cat Food | $0.99 | one-time |


## Frequently asked questions

### Is JM Operator free?

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

### Is Cat Voice Library free?

Cat Voice Library is free to download, with in-app purchases available.

### Which has better reviews, JM Operator or Cat Voice Library?

JM Operator and Cat Voice Library are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do JM Operator or Cat Voice Library have ads?

Neither JM Operator nor Cat Voice Library shows ads.

### Which is updated more often, JM Operator or Cat Voice Library?

JM Operator ships an update every 24 months, and Cat Voice Library every 4 days. Most recently, JM Operator was updated on October 1, 2026 and Cat Voice Library on October 7, 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.*