# Math Clock, by MLC vs Hundreds Chart

The clearest difference is in-app purchases: Math Clock, by MLC at none against Hundreds Chart's 4. Hundreds Chart's advantage is update cadence (every 11 days vs every 6 months) and device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Hundreds Chart sells 4 in-app purchases, starting at $1.99 per month. Math Clock, by MLC asks for nothing beyond the download.

Math Clock, by MLC ships an update every 6 months, Hundreds Chart every 11 days. The most recent releases landed on October 24, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Math Clock, by MLC | Hundreds Chart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (10 ratings)](https://appshunter.io/ios/app/math-clock-by-mlc/id1444666967/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 11 days** |
| Monetization | Free | — |
| Size | 5 MB | 70 MB |
| Requires iOS | **14.7** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [The Math Learning Center](https://appshunter.io/developer/1542700905) | [Mogen Technology (Shanghai) Co., Ltd.](https://appshunter.io/developer/1764646475) |

## What reviewers say

### Math Clock, by MLC

[App page](https://appshunter.io/ios/app/math-clock-by-mlc/id1444666967)

This app helps students master telling time and understanding fractions using interactive analog clocks. It offers tools for visualizing time intervals, solving story problems, and exploring fractional parts of an hour with various denominators. Students can also use drawing and annotation features to demonstrate their understanding.

**Highlights:** Interactive analog clocks with geared or free-moving hands, Live clock with second hand and digital time display, Elapsed time tool for interval problems, Fraction overlays for visualizing parts of an hour, Drawing and annotation tools, Save and share work via image or code

**Features:** macOS Compatibility

**In-app purchases:** none


### Hundreds Chart

[App page](https://appshunter.io/ios/app/hundreds-chart-number-sense/id6661018861)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Quarterly | $1.99 | per 3 months |
| Annual | $4.99 | per year |
| Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is Math Clock, by MLC free?

Math Clock, by MLC is free to download, with no in-app purchases.

### Is Hundreds Chart free?

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

### Do Math Clock, by MLC or Hundreds Chart have ads?

Neither Math Clock, by MLC nor Hundreds Chart shows ads.

### Which is updated more often, Math Clock, by MLC or Hundreds Chart?

Math Clock, by MLC ships an update every 6 months, and Hundreds Chart every 11 days. Most recently, Math Clock, by MLC was updated on October 24, 2026 and Hundreds Chart on September 11, 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.*