# Pocket Hourglass Timer vs Knowledge Base

The clearest difference is in-app purchases: Knowledge Base at none against Pocket Hourglass Timer's 1. Knowledge Base also leads on ads (none vs shown). Pocket Hourglass Timer's advantage is update cadence (every 3 days vs weekly) and device support (3 vs 1). On price there is nothing between them.

Both are free to download. Pocket Hourglass Timer sells 1 one-off in-app purchase. Knowledge Base asks for nothing beyond the download.

Pocket Hourglass Timer ships an update every 3 days, Knowledge Base weekly. The most recent releases landed on October 9, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Pocket Hourglass Timer | Knowledge Base |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Weekly |
| Size | 73 MB | 9 MB |
| Requires iOS | **12.0** | 26.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [HARASHOW Interactive](https://appshunter.io/developer/356148278) | [CHANG CHIA-WEI](https://appshunter.io/developer/1804812181) |

## What reviewers say

### Pocket Hourglass Timer

[App page](https://appshunter.io/ios/app/pocket-hourglass-timer/id6529540527)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $3.49 | one-time |


### Knowledge Base

[App page](https://appshunter.io/ios/app/knowledge-base-second-brain/id6785236967)

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

**In-app purchases:** none


## Frequently asked questions

### Is Pocket Hourglass Timer free?

Pocket Hourglass Timer is free to download, with in-app purchases available.

### Is Knowledge Base free?

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

### Do Pocket Hourglass Timer or Knowledge Base have ads?

Pocket Hourglass Timer shows ads; Knowledge Base does not.

### Which is updated more often, Pocket Hourglass Timer or Knowledge Base?

Pocket Hourglass Timer ships an update every 3 days, and Knowledge Base weekly. Most recently, Pocket Hourglass Timer was updated on October 9, 2026 and Knowledge Base on September 21, 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.*