# Scent Stack vs Scent Atlas

The clearest difference is in-app purchases: Scent Atlas at none against Scent Stack's 2. Scent Stack's advantage is update cadence (every 2 days vs every 4 days) and iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Scent Stack sells 2 in-app purchases, starting at $3.99 per 7 days. Scent Atlas asks for nothing beyond the download.

Scent Stack ships an update every 2 days, Scent Atlas every 4 days. The most recent releases landed on October 1, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Scent Stack | Scent Atlas |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 4 days |
| Monetization | — | Free |
| Size | 36 MB | 66 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ECOFLUX LTD](https://appshunter.io/developer/6790036661) | [Shaun Wadhwana](https://appshunter.io/developer/6812692833) |

## What reviewers say

### Scent Stack

[App page](https://appshunter.io/ios/app/scent-stack/id6799661658)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $3.99 | per 7 days |
| Yearly | $29.99 | per year |


### Scent Atlas

[App page](https://appshunter.io/ios/app/scent-atlas/id6812692831)

Discover your perfect fragrance with a personalized quiz and a comprehensive perfume atlas. Compare scents, find alternatives, and manage your collection. Get weather-based recommendations and layer scents from your own wardrobe.

**Highlights:** Personalized scent matching quiz, Browse 5,900+ perfumes, Search by natural language, Compare notes, performance, and price, Find perfumes with similar DNA, Manage personal fragrance collection, Weather-based scent recommendations

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

**In-app purchases:** none


## Frequently asked questions

### Is Scent Stack free?

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

### Is Scent Atlas free?

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

### Do Scent Stack or Scent Atlas have ads?

Neither Scent Stack nor Scent Atlas shows ads.

### Which is updated more often, Scent Stack or Scent Atlas?

Scent Stack ships an update every 2 days, and Scent Atlas every 4 days. Most recently, Scent Stack was updated on October 1, 2026 and Scent Atlas on October 18, 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.*