# GridCalculation vs Summarizer Generator

The clearest difference is in-app purchases: GridCalculation at none against Summarizer Generator's 2. GridCalculation also leads on update cadence (weekly vs every 4 months) and iOS requirement (16.6 vs 18.5). On price, ads and device support there is nothing between them.

Both are free to download. Summarizer Generator sells 2 in-app purchases, starting at $1.99 per month. GridCalculation asks for nothing beyond the download.

GridCalculation ships an update weekly, Summarizer Generator every 4 months. The most recent releases landed on October 8, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | GridCalculation | Summarizer Generator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Weekly** | Every 4 months |
| Size | 16 MB | 15 MB |
| Requires iOS | **16.6** | 18.5 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Katsuhiko Yao](https://appshunter.io/developer/1543188534) | [Maksim Gusev](https://appshunter.io/developer/1616401554) |

## What reviewers say

### GridCalculation

[App page](https://appshunter.io/ios/app/gridcalculation/id6745461475)

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

**In-app purchases:** none


### Summarizer Generator

[App page](https://appshunter.io/ios/app/summarizer-generator/id6751841396)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Professional version | $1.99 | per month |
| Adding 1,000,000 characters | $1.99 | one-time |


## Frequently asked questions

### Is GridCalculation free?

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

### Is Summarizer Generator free?

Summarizer Generator is free to download, with in-app purchases available.

### Do GridCalculation or Summarizer Generator have ads?

Both GridCalculation and Summarizer Generator show ads.

### Which is updated more often, GridCalculation or Summarizer Generator?

GridCalculation ships an update weekly, and Summarizer Generator every 4 months. Most recently, GridCalculation was updated on October 8, 2026 and Summarizer Generator on October 5, 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.*