# HandyCalcUnit vs Message Summary for Slack

The clearest difference is in-app purchases: HandyCalcUnit at none against Message Summary for Slack's 2. HandyCalcUnit also leads on iOS requirement (12.0 vs 15.1). Message Summary for Slack's advantage is device support. On price there is nothing between them.

Both are free to download. Message Summary for Slack sells 2 in-app purchases, starting at $12.99 per month. HandyCalcUnit asks for nothing beyond the download.

## The numbers

| Metric | HandyCalcUnit | Message Summary for Slack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Every 3 months |
| Size | 57 MB | 30 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kenneth Oh](https://appshunter.io/developer/1731297489) | [Liraz Hadad](https://appshunter.io/developer/1501656086) |

## What reviewers say

### HandyCalcUnit

[App page](https://appshunter.io/ios/app/handycalcunit/id6480043362)

**In-app purchases:** none


### Message Summary for Slack

[App page](https://appshunter.io/ios/app/message-summary-for-slack/id6757017216)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $12.99 | per month |
| Premium Annual | $119.00 | per year |


## Frequently asked questions

### Is HandyCalcUnit free?

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

### Is Message Summary for Slack free?

Message Summary for Slack is free to download, with in-app purchases available.

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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.*