# Prefume vs ESG Go

The clearest difference is update cadence: Prefume at every 6 days against ESG Go's every 4 weeks. ESG Go's advantage is iOS requirement (16.6 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Prefume sells 1 one-off in-app purchase and ESG Go sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Prefume ships an update every 6 days, ESG Go every 4 weeks. The most recent releases landed on October 11, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Prefume | ESG Go |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/prefume/id6749613019/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 4 weeks |
| Monetization | Freemium | — |
| Size | 94 MB | 20 MB |
| Requires iOS | 26.0 | **16.6** |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 9+ | 4+ |
| Developer | [Anatole Ayadi](https://appshunter.io/developer/1772230666) | [恒俭 董](https://appshunter.io/developer/947356968) |

## What reviewers say

### Prefume

[App page](https://appshunter.io/ios/app/prefume/id6749613019)

This app helps you document and remember your fragrances through a timeline system. It offers personalized daily suggestions based on weather and your mood, and allows for effortless check-ins to track your scent experiences. All your data is kept private and analyzed on your device.

**Highlights:** Timeline-based fragrance journaling, Weather-aware daily suggestions, Smart collection rotation, Acquisition and spending insights, Testing workflows with reminders, Offline-first design for privacy

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Extract - Premium Features | $24.99 | one-time |


### ESG Go

[App page](https://appshunter.io/ios/app/esg-go/id6755216298)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tactical Terminal | $0.99 | one-time |


## Frequently asked questions

### Is Prefume free?

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

### Is ESG Go free?

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

### Do Prefume or ESG Go have ads?

Neither Prefume nor ESG Go shows ads.

### Which is updated more often, Prefume or ESG Go?

Prefume ships an update every 6 days, and ESG Go every 4 weeks. Most recently, Prefume was updated on October 11, 2026 and ESG Go 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.*