# Postal Time Keeper vs Brain Discovery

The clearest difference is price: Brain Discovery at Free against Postal Time Keeper's $0.99. Brain Discovery also leads on update cadence (every 3 weeks vs every 11 months). Postal Time Keeper's advantage is in-app purchases (none vs 9). On ads, device support and iOS requirement there is nothing between them.

Brain Discovery is free to download; Postal Time Keeper costs $0.99 up front. Brain Discovery sells 9 in-app purchases, starting at $5.99 per 7 days. Postal Time Keeper asks for nothing beyond the download.

Postal Time Keeper ships an update every 11 months, Brain Discovery every 3 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Postal Time Keeper | Brain Discovery |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[3.6 (7 ratings)](https://appshunter.io/ios/app/postal-time-keeper/id1600112167/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 3 weeks** |
| Monetization | Paid | — |
| Size | 1 MB | 33 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Mark Cornish](https://appshunter.io/developer/1600112169) | [J.G.S. Invest ApS](https://appshunter.io/developer/1872981245) |

## What reviewers say

### Postal Time Keeper

[App page](https://appshunter.io/ios/app/postal-time-keeper/id1600112167)

Easily track your daily clock rings and important time stamps without manual notes. This app provides a clear 100-unit time display and allows you to search past entries by route number. Customize operations and store your barcode for quick scanner logins.

**Highlights:** Track clock rings, 100-unit time display, Search by route number, Customizable operations, Store barcode for scanner, Home screen widget

**Features:** macOS Compatibility

**In-app purchases:** none


### Brain Discovery

[App page](https://appshunter.io/ios/app/brain-discovery/id6758782417)

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $5.99 | per 7 days |
| Weekly Plan with 7 days trial | $5.99 | per 7 days |
| Weekly | $6.99 | per 7 days |
| Weekly Trial | $6.99 | per 7 days |
| Monthly Plan with 7 days trial | $14.99 | per month |
| Monthly Plan | $14.99 | per month |
| Annual Plan | $34.99 | per year |
| Annual Plan with 7 days trial | $34.99 | per year |
| Annual Plan | $39.99 | per year |


## Frequently asked questions

### Is Postal Time Keeper free?

Postal Time Keeper costs $0.99, with no in-app purchases.

### Is Brain Discovery free?

Brain Discovery is free to download, with in-app purchases available.

### Do Postal Time Keeper or Brain Discovery have ads?

Neither Postal Time Keeper nor Brain Discovery shows ads.

### Which is updated more often, Postal Time Keeper or Brain Discovery?

Postal Time Keeper ships an update every 11 months, and Brain Discovery every 3 weeks. Most recently, Postal Time Keeper was updated on November 3, 2026 and Brain Discovery on October 31, 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.*