# KnowItAll Activator vs atmospherePro

The clearest difference is update cadence: atmospherePro at every 2 months against KnowItAll Activator's every 23 months. atmospherePro also leads on device support (4 vs 2). KnowItAll Activator's advantage is iOS requirement (9.2 vs 13.0). On price, ads and in-app purchases there is nothing between them.

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

KnowItAll Activator ships an update every 23 months, atmospherePro every 2 months. The most recent releases landed on October 3, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | KnowItAll Activator | atmospherePro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 23 months | **Every 2 months** |
| Size | 13 MB | 38 MB |
| Requires iOS | **9.2** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 17+ |
| Developer | [Wiley](https://appshunter.io/developer/334132751) | [Atsign](https://appshunter.io/developer/1516551087) |

## What reviewers say

### KnowItAll Activator

[App page](https://appshunter.io/ios/app/knowitall-activator/id1139315124)

**Features:** Vision Pro support

**In-app purchases:** none


### atmospherePro

[App page](https://appshunter.io/ios/app/atmospherepro/id1550936444)

**In-app purchases:** none


## Frequently asked questions

### Is KnowItAll Activator free?

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

### Is atmospherePro free?

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

### Do KnowItAll Activator or atmospherePro have ads?

Neither KnowItAll Activator nor atmospherePro shows ads.

### Which is updated more often, KnowItAll Activator or atmospherePro?

KnowItAll Activator ships an update every 23 months, and atmospherePro every 2 months. Most recently, KnowItAll Activator was updated on October 3, 2026 and atmospherePro on October 7, 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.*