# Acidity vs Subscription

The clearest difference is in-app purchases: Acidity at none against Subscription's 3. Acidity also leads on update cadence (every 4 months vs every 10 months) and device support (4 vs 2). On price and ads there is nothing between them.

Both are free to download. Subscription sells 3 in-app purchases, starting at $2.99 per month. Acidity asks for nothing beyond the download.

Acidity ships an update every 4 months, Subscription every 10 months. The most recent releases landed on October 8, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Acidity | Subscription |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (10 ratings)](https://appshunter.io/ios/app/acidity-view-page-archives/id6472630023/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 10 months |
| Monetization | Free | — |
| Size | 8 MB | 12 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Octalwise](https://appshunter.io/developer/1717359953) | [Pranshu Patidar](https://appshunter.io/developer/1807470704) |

## What reviewers say

### Acidity

[App page](https://appshunter.io/ios/app/acidity-view-page-archives/id6472630023)

This utility extension for Safari provides quick access to archived versions of web pages. It allows users to manually navigate to archives or set up automatic redirection based on custom regex patterns.

**Highlights:** Access archived page versions, Toolbar action for quick access, Regex matching for automatic navigation, Safari extension

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

**In-app purchases:** none


### Subscription

[App page](https://appshunter.io/ios/app/subscription-reminder-tracker/id6745758809)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus Monthly | $2.99 | per month |
| Plus Yearly | $24.99 | per year |
| Plus Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is Acidity free?

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

### Is Subscription free?

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

### Do Acidity or Subscription have ads?

Neither Acidity nor Subscription shows ads.

### Which is updated more often, Acidity or Subscription?

Acidity ships an update every 4 months, and Subscription every 10 months. Most recently, Acidity was updated on October 8, 2026 and Subscription 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.*