# Mercury Retrograde Tracker vs Collectory

The clearest difference is device support: Mercury Retrograde Tracker at 3 against Collectory's 1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Mercury Retrograde Tracker sells 3 in-app purchases, starting at $1.99 per month and Collectory sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Mercury Retrograde Tracker ships an update every 3 weeks, Collectory monthly. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Mercury Retrograde Tracker | Collectory |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (55 ratings)](https://appshunter.io/ios/app/mercury-retrograde-tracker/id6443472258/reviews)** | — |
| Number of ratings | **55** | — |
| Positive reviews | 30.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Freemium | — |
| Size | 29 MB | 34 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Infinite Wave Media, LLC](https://appshunter.io/developer/495187294) | [Newman AI Works LLC](https://appshunter.io/developer/6782195847) |

## What reviewers say

### Mercury Retrograde Tracker

[App page](https://appshunter.io/ios/app/mercury-retrograde-tracker/id6443472258)

Stay ahead of astrological disruptions with this tool that tracks Mercury retrograde dates. Receive advance notifications, access personalized horoscopes, and use the note-taking feature to reflect on each period. Plan your life and avoid potential issues caused by planetary shifts.

**Highlights:** Mercury retrograde event dates, Personalized horoscopes, Advance event notifications, Note-taking for retrograde periods, Astrology forecasts

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $1.99 | per month |
| Pro Annual | $9.99 | per year |
| Pro Lifetime | $14.99 | one-time |


### Collectory

[App page](https://appshunter.io/ios/app/collectory-collection-tracker/id6794919960)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Collectory Pro | $9.99 | one-time |


## Frequently asked questions

### Is Mercury Retrograde Tracker free?

Mercury Retrograde Tracker is free to download, with in-app purchases available.

### Is Collectory free?

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

### Do Mercury Retrograde Tracker or Collectory have ads?

Neither Mercury Retrograde Tracker nor Collectory shows ads.

### Which is updated more often, Mercury Retrograde Tracker or Collectory?

Mercury Retrograde Tracker ships an update every 3 weeks, and Collectory monthly. Most recently, Mercury Retrograde Tracker was updated on October 25, 2026 and Collectory on October 29, 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.*