# PostSupporter vs Grid Calculator.

The clearest difference is update cadence: PostSupporter at every 5 days against Grid Calculator.'s every 5 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PostSupporter sells 2 in-app purchases, starting at $2.99 per month and Grid Calculator. sells 2 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.

PostSupporter ships an update every 5 days, Grid Calculator. every 5 months. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | PostSupporter | Grid Calculator. |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 5 months |
| Size | 38 MB | 10 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [kei inoue](https://appshunter.io/developer/1845620737) | [Hong Kong BLJ Cosmetics Limited](https://appshunter.io/developer/1680645623) |

## What reviewers say

### PostSupporter

[App page](https://appshunter.io/ios/app/postsupporter/id6753904679)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-Free Plan | $2.99 | per month |
| Ten Posts Pack | $7.99 | one-time |


### Grid Calculator.

[App page](https://appshunter.io/ios/app/grid-calculator/id6757141903)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Gold | $9.99 | per 7 days |
| Yearly Gold | $39.99 | per year |


## Frequently asked questions

### Is PostSupporter free?

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

### Is Grid Calculator. free?

Grid Calculator. is free to download, with in-app purchases available.

### Do PostSupporter or Grid Calculator. have ads?

Neither PostSupporter nor Grid Calculator. shows ads.

### Which is updated more often, PostSupporter or Grid Calculator.?

PostSupporter ships an update every 5 days, and Grid Calculator. every 5 months. Most recently, PostSupporter was updated on October 25, 2026 and Grid Calculator. on October 28, 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.*