# Column Subtraction vs Learn 99 multiplication table

The clearest difference is update cadence: Column Subtraction at every 8 months against Learn 99 multiplication table's every 55 months. Learn 99 multiplication table's advantage is price ($0.99 vs $3.99) and device support (4 vs 2). On ads and in-app purchases there is nothing between them.

Column Subtraction costs $3.99 and Learn 99 multiplication table $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Column Subtraction ships an update every 8 months, Learn 99 multiplication table every 55 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Column Subtraction | Learn 99 multiplication table |
| --- | --- | --- |
| Price | $3.99 | **$0.99** |
| Rating | **[4.3 (6 ratings)](https://appshunter.io/ios/app/column-subtraction/id341040894/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 55 months |
| Monetization | Paid | — |
| Size | 19 MB | 27 MB |
| Requires iOS | 17.6 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Esa Helttula](https://appshunter.io/developer/339440196) | [景琦 孙](https://appshunter.io/developer/1030985695) |

## What reviewers say

### Column Subtraction

[App page](https://appshunter.io/ios/app/column-subtraction/id341040894)

This educational app teaches and reinforces the column subtraction method. It offers an interactive interface with customizable settings for solving random or custom problems. The app includes a puzzle feature that unlocks as users solve math problems.

**Highlights:** Column subtraction method teaching, Interactive and customizable interface, Random and custom problem solving, Adjustable number of digits, Step-by-step renaming animation, Picture puzzle reward system

**Features:** macOS Compatibility

**In-app purchases:** none


### Learn 99 multiplication table

[App page](https://appshunter.io/ios/app/learn-99-multiplication-table/id1118594031)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Column Subtraction free?

Column Subtraction costs $3.99, with no in-app purchases.

### Is Learn 99 multiplication table free?

Learn 99 multiplication table costs $0.99, with no in-app purchases.

### Do Column Subtraction or Learn 99 multiplication table have ads?

Neither Column Subtraction nor Learn 99 multiplication table shows ads.

### Which is updated more often, Column Subtraction or Learn 99 multiplication table?

Column Subtraction ships an update every 8 months, and Learn 99 multiplication table every 55 months. Most recently, Column Subtraction was updated on November 1, 2026 and Learn 99 multiplication table on November 6, 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.*