# AMP Shockwave vs Postal Time Keeper

The clearest difference is price: AMP Shockwave at Free against Postal Time Keeper's $0.99. AMP Shockwave also leads on rating (4.7 vs 3.6) and update cadence (fortnightly vs every 11 months). On review sentiment, ads and in-app purchases there is nothing between them.

AMP Shockwave is free to download; Postal Time Keeper costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

AMP Shockwave holds the better App Store score, 4.7 against 3.6. Both are backed by a comparable volume of ratings — 24 and 7 respectively. Written reviews split almost evenly too, at 67% and 67% positive.

AMP Shockwave ships an update fortnightly, Postal Time Keeper every 11 months. The most recent releases landed on October 22, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | AMP Shockwave | Postal Time Keeper |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.7 (24 ratings)](https://appshunter.io/ios/app/amp-shockwave/id1587707585/reviews)** | [3.6 (7 ratings)](https://appshunter.io/ios/app/postal-time-keeper/id1600112167/reviews) |
| Number of ratings | **24** | 7 |
| Positive reviews | 66.7% of reviews | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 11 months |
| Monetization | **Free** | Paid |
| Size | 1 MB | 1 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [And a Dinosaur](https://appshunter.io/developer/475577301) | [Mark Cornish](https://appshunter.io/developer/1600112169) |

## What reviewers say

### AMP Shockwave

[App page](https://appshunter.io/ios/app/amp-shockwave/id1587707585)

This Safari extension automatically redirects Accelerated Mobile Pages (AMP) to their standard web versions. It enhances browsing by ensuring you always see the full, non-AMP webpage.

**Highlights:** Redirects AMP pages, Works with Safari, Enhances browsing experience, Free to use

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is AMP Shockwave free?

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

### Is Postal Time Keeper free?

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

### Which has better reviews, AMP Shockwave or Postal Time Keeper?

AMP Shockwave is rated higher. AMP Shockwave averages 4.7 out of 5 from 24 ratings, while Postal Time Keeper averages 3.6 from 7 ratings.

### Do AMP Shockwave or Postal Time Keeper have ads?

Neither AMP Shockwave nor Postal Time Keeper shows ads.

### Which is updated more often, AMP Shockwave or Postal Time Keeper?

AMP Shockwave ships an update fortnightly, and Postal Time Keeper every 11 months. Most recently, AMP Shockwave was updated on October 22, 2026 and Postal Time Keeper on October 3, 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.*