# TOOL plus (Pro) ¶ vs ProGraph Calculator

The clearest difference is update cadence: TOOL plus (Pro) ¶ at every 2 days against ProGraph Calculator's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

TOOL plus (Pro) ¶ ships an update every 2 days, ProGraph Calculator every 3 months. The most recent releases landed on October 4, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | TOOL plus (Pro) ¶ | ProGraph Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 months |
| Size | 111 MB | 1 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Han-Chung Lin](https://appshunter.io/developer/881528252) | [Michael Pingleton](https://appshunter.io/developer/1584719976) |

## What reviewers say

### TOOL plus (Pro) ¶

[App page](https://appshunter.io/ios/app/tool-plus-pro/id972381990)

**Features:** macOS Compatibility

**In-app purchases:** none


### ProGraph Calculator

[App page](https://appshunter.io/ios/app/prograph-calculator/id1629338359)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TOOL plus (Pro) ¶ free?

TOOL plus (Pro) ¶ is free to download, with no in-app purchases.

### Is ProGraph Calculator free?

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

### Do TOOL plus (Pro) ¶ or ProGraph Calculator have ads?

Neither TOOL plus (Pro) ¶ nor ProGraph Calculator shows ads.

### Which is updated more often, TOOL plus (Pro) ¶ or ProGraph Calculator?

TOOL plus (Pro) ¶ ships an update every 2 days, and ProGraph Calculator every 3 months. Most recently, TOOL plus (Pro) ¶ was updated on October 4, 2026 and ProGraph Calculator 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.*