# Slack vs Kalemni

The clearest difference is update cadence: Kalemni at every 2 days against Slack's weekly. Slack's advantage is chart position (#20 vs unranked). 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.

Slack ships an update weekly, Kalemni every 2 days. The most recent releases landed on November 12, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Slack | Kalemni |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (55K ratings)](https://appshunter.io/ios/app/slack/id618783545/reviews)** | — |
| Number of ratings | **55K** | — |
| Positive reviews | 55.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Every 2 days** |
| Monetization | Free | — |
| Best chart rank | **#20** | — |
| Size | 365 MB | 56 MB |
| Requires iOS | 17.5 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Slack Technologies, Inc.](https://appshunter.io/developer/453420243) | [ALA ayari](https://appshunter.io/developer/6806664636) |

## What reviewers say

### Slack

[App page](https://appshunter.io/ios/app/slack/id618783545)

**Currently charting:** #20 Top Free · Business (US App Store)

Streamline team collaboration and communication by bringing coworkers, customers, and contractors into a secure, centralized platform. Automate routine tasks, find information instantly with AI-powered search, and collaborate on documents to boost productivity.

**Highlights:** Secure collaboration with coworkers, customers, and contractors, AI-powered search for instant information retrieval, Automate routine tasks and workflows, Video conferencing with screen sharing, Organize conversations into dedicated channels, Integrates with over 2,600 apps

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Excellent communication tool
- 👍 Intuitive interface
- 🔒 Secure and reliable
- 💡 Helpful integrations and features
- 🚀 Seamless mobile experience

**What reviewers complain about**

- 🐛 Inconsistent notifications
- 🔍 Cluttered and confusing UI
- 🔋 High battery consumption
- 🔍 Difficult to manage multiple workspaces
- 🐛 Bugs and glitches

**Reported bugs**

- Messages failing to send or upload
- Notifications not working as expected
- Frequent app crashes and freezes
- Syncing issues between desktop and mobile
- Compatibility problems with older devices

**Requested features**

- Customizable do not disturb schedules
- Improved search and organization
- Better integration with other productivity apps
- More granular notification controls
- Ability to edit/delete old messages


### Kalemni

[App page](https://appshunter.io/ios/app/kalemni/id6806664634)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Slack free?

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

### Is Kalemni free?

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

### Do Slack or Kalemni have ads?

Neither Slack nor Kalemni shows ads.

### Which is updated more often, Slack or Kalemni?

Slack ships an update weekly, and Kalemni every 2 days. Most recently, Slack was updated on November 12, 2026 and Kalemni on November 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.*