# Column Addition vs Percentage Solver

The clearest difference is rating: Percentage Solver at 4.1 against Column Addition's 3.0. Percentage Solver also leads on ratings volume (38 vs 1) and price ($0.99 vs $3.99). On review sentiment, update cadence, ads and in-app purchases there is nothing between them.

Column Addition costs $3.99 and Percentage Solver $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Percentage Solver holds the better App Store score, 4.1 against 3.0. That said, the two scores are not equally well evidenced: Percentage Solver has 38 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 87% of Column Addition's written reviews are positive against 80% of Percentage Solver's, so the app with the better star average is not the one people write more warmly about.

Column Addition ships an update every 8 months, Percentage Solver every 9 months. The most recent releases landed on October 8, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Column Addition | Percentage Solver |
| --- | --- | --- |
| Price | $3.99 | **$0.99** |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/column-addition/id339440193/reviews) | **[4.1 (38 ratings)](https://appshunter.io/ios/app/percentage-solver/id1046389553/reviews)** |
| Number of ratings | 1 | **38** |
| Positive reviews | **86.7% of reviews** | 80.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 9 months |
| Monetization | Paid | Paid |
| Size | 15 MB | 5 MB |
| Requires iOS | 17.6 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Esa Helttula](https://appshunter.io/developer/339440196) | [Francesco Grassi](https://appshunter.io/developer/741665024) |

## What reviewers say

### Column Addition

[App page](https://appshunter.io/ios/app/column-addition/id339440193)

This educational app teaches and reinforces the column addition method with an interactive interface. Users can solve custom or random problems with adjustable number sizes and receive visual feedback on their progress. It includes optional jigsaw puzzles as a reward for solving problems.

**Highlights:** Interactive column addition learning, Customizable number of digits, Random and custom problem generation, Visual feedback and animations, Optional jigsaw puzzles, Adjustable interface colors and animations

**Features:** macOS Compatibility

**In-app purchases:** none


### Percentage Solver

[App page](https://appshunter.io/ios/app/percentage-solver/id1046389553)

This app helps solve any percentage-related problem with complete calculation breakdowns. It's designed for students to understand how solutions are reached and allows sharing of detailed steps. Easily calculate parts, totals, percentage changes, and more.

**Highlights:** Calculate percentage parts, Calculate percentage changes, Shows complete calculation steps, Input two values, get the third, Share detailed solutions, User-friendly interface

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Column Addition free?

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

### Is Percentage Solver free?

Percentage Solver costs $0.99, with no in-app purchases.

### Which has better reviews, Column Addition or Percentage Solver?

Percentage Solver is rated higher. Column Addition averages 3.0 out of 5 from 1 ratings, while Percentage Solver averages 4.1 from 38 ratings.

### Do Column Addition or Percentage Solver have ads?

Neither Column Addition nor Percentage Solver shows ads.

### Which is updated more often, Column Addition or Percentage Solver?

Column Addition ships an update every 8 months, and Percentage Solver every 9 months. Most recently, Column Addition was updated on October 8, 2026 and Percentage Solver on October 10, 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.*