# Number Pieces, by MLC vs K

The clearest difference is rating: K at 5.0 against Number Pieces, by MLC's 3.9. K also leads on update cadence (every 4 months vs every 9 months) and iOS requirement (10.0 vs 14.7). Number Pieces, by MLC's advantage is ratings volume (22 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

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

K holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Number Pieces, by MLC has 22 ratings behind it against 2, so its average is the more settled of the two.

Number Pieces, by MLC ships an update every 9 months, K every 4 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Number Pieces, by MLC | K |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (22 ratings)](https://appshunter.io/ios/app/number-pieces-by-mlc/id605433778/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/k-2-math-tools/id1000444174/reviews)** |
| Number of ratings | **22** | 2 |
| Positive reviews | 87.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 4 months** |
| Monetization | Free | Free |
| Size | 8 MB | 35 MB |
| Requires iOS | 14.7 | **10.0** |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [The Math Learning Center](https://appshunter.io/developer/1542700905) | [Classroom Focused Software](https://appshunter.io/developer/406741679) |

## What reviewers say

### Number Pieces, by MLC

[App page](https://appshunter.io/ios/app/number-pieces-by-mlc/id605433778)

This app helps students grasp place value and computation with multi-digit numbers using interactive visual tools. Users can manipulate number pieces to add, subtract, multiply, and divide, fostering a deeper mathematical understanding.

**Highlights:** Manipulate ones, tens, and hundreds pieces, Regroup pieces (e.g., 10 ones to 1 ten), Measure array dimensions with an edge piece, Use drawing and text tools for annotations, Zoom, scroll, and hide/reveal work, Share work via image save or share code

**Features:** macOS Compatibility

**In-app purchases:** none


### K

[App page](https://appshunter.io/ios/app/k-2-math-tools/id1000444174)

This app provides a collection of interactive math tools for kindergarten through second-grade classrooms. It includes manipulatives like base 10 blocks, counters, and number lines, along with grids and a basic calculator to aid in problem-solving.

**Highlights:** Marker board, Base 10 blocks (1s & 10s), Counters, 10 frames, Number line, Addition grids, 100s chart, Basic calculator

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Number Pieces, by MLC free?

Number Pieces, by MLC is free to download, with no in-app purchases.

### Is K free?

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

### Which has better reviews, Number Pieces, by MLC or K?

K is rated higher. Number Pieces, by MLC averages 3.9 out of 5 from 22 ratings, while K averages 5.0 from 2 ratings.

### Do Number Pieces, by MLC or K have ads?

Neither Number Pieces, by MLC nor K shows ads.

### Which is updated more often, Number Pieces, by MLC or K?

Number Pieces, by MLC ships an update every 9 months, and K every 4 months. Most recently, Number Pieces, by MLC was updated on October 23, 2026 and K on October 24, 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.*