# Kalley's Machine Plus Cats vs First Grade Math Trainer

The clearest difference is price: Kalley's Machine Plus Cats at Free against First Grade Math Trainer's $2.99. Kalley's Machine Plus Cats also leads on update cadence (every 5 weeks vs every 26 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Kalley's Machine Plus Cats is free to download; First Grade Math Trainer costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Kalley's Machine Plus Cats ships an update every 5 weeks, First Grade Math Trainer every 26 months. The most recent releases landed on September 18, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Kalley's Machine Plus Cats | First Grade Math Trainer |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[4.7 (37 ratings)](https://appshunter.io/ios/app/kalleys-machine-plus-cats/id905722643/reviews)** | — |
| Number of ratings | **37** | — |
| Positive reviews | 92.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 26 months |
| Monetization | Paid | — |
| Size | 35 MB | 17 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RocketWagon, LLC](https://appshunter.io/developer/905722646) | [Sergey Malugin](https://appshunter.io/developer/562782409) |

## What reviewers say

### Kalley's Machine Plus Cats

[App page](https://appshunter.io/ios/app/kalleys-machine-plus-cats/id905722643)

An interactive storybook where a child's imaginative drawing of a machine comes to life. Explore playful interactions, help the machine perform various actions, and engage with whimsical cats. Features include read-to-me and touch-to-read options for young readers.

**Highlights:** Interactive machine play, Smash, inflate, shrink, and mold objects, Interact with cats, Read-to-me narration, Touch-to-read word highlighting, Child-friendly controls

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Highly engaging and fun
- 🎨 Creative and imaginative
- 📚 Great for reading skills
- 👨‍👩‍👧‍👦 Family-friendly entertainment
- 💡 Educational value (science, cause/effect)

**What reviewers complain about**

- 👎 Limited content/replayability
- 🤏 Frustrating swipe gestures
- 💰 Perceived as not worth the price

**Reported bugs**

- Cannot get past the first page
- No sound at all
- Navigation issues on older devices

**Requested features**

- Disable swipe feature
- More interactive elements on the last page
- More content/sequels/series
- More interaction with cats
- More interactive elements in general


### First Grade Math Trainer

[App page](https://appshunter.io/ios/app/first-grade-math-trainer/id1312646149)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Kalley's Machine Plus Cats free?

Kalley's Machine Plus Cats is free to download, with no in-app purchases.

### Is First Grade Math Trainer free?

First Grade Math Trainer costs $2.99, with no in-app purchases.

### Do Kalley's Machine Plus Cats or First Grade Math Trainer have ads?

Neither Kalley's Machine Plus Cats nor First Grade Math Trainer shows ads.

### Which is updated more often, Kalley's Machine Plus Cats or First Grade Math Trainer?

Kalley's Machine Plus Cats ships an update every 5 weeks, and First Grade Math Trainer every 26 months. Most recently, Kalley's Machine Plus Cats was updated on September 18, 2026 and First Grade Math Trainer on September 16, 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.*