# InStalker Visitors Tracker IG vs PetriMail

The clearest difference is in-app purchases: PetriMail at none against InStalker Visitors Tracker IG's 4. PetriMail also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. InStalker Visitors Tracker IG sells 4 in-app purchases, starting at $3.99 per 7 days. PetriMail asks for nothing beyond the download.

InStalker Visitors Tracker IG ships an update every 2 weeks, PetriMail every 3 weeks. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | InStalker Visitors Tracker IG | PetriMail |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (322 ratings)](https://appshunter.io/ios/app/instalker-visitors-tracker-ig/id6741679112/reviews)** | — |
| Number of ratings | **322** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 24 MB | 25 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 12+ | 12+ |
| Developer | [Unfollowers +](https://appshunter.io/developer/1738818946) | [Petri Tecnologia](https://appshunter.io/developer/1599111722) |

## What reviewers say

### InStalker Visitors Tracker IG

[App page](https://appshunter.io/ios/app/instalker-visitors-tracker-ig/id6741679112)

Discover who is viewing your profile, interacting with your content, and unfollowing you. Get insights into your top fans and recent visitors. Receive instant alerts for unfollows and blocks.

**Highlights:** Identify admirers and top fans, Track recent profile visitors, Get unfollower and blocker alerts, Detect ghost followers, Analyze follower interactions

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Instagram Unfollowers Tracker | $3.99 | per 7 days |
| See Who Viewed Your Instagram | $4.99 | per 7 days |
| Instagram Stalkers | $29.99 | per year |
| Instagram Followers Tracker | $39.99 | per year |


### PetriMail

[App page](https://appshunter.io/ios/app/petrimail/id6789877596)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is InStalker Visitors Tracker IG free?

InStalker Visitors Tracker IG is free to download, with in-app purchases available.

### Is PetriMail free?

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

### Do InStalker Visitors Tracker IG or PetriMail have ads?

InStalker Visitors Tracker IG shows ads; PetriMail does not.

### Which is updated more often, InStalker Visitors Tracker IG or PetriMail?

InStalker Visitors Tracker IG ships an update every 2 weeks, and PetriMail every 3 weeks. Most recently, InStalker Visitors Tracker IG was updated on October 30, 2026 and PetriMail on October 28, 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.*