# Prefume vs Kept By

The clearest difference is in-app purchases: Kept By at none against Prefume's 1. Kept By also leads on ratings volume (3 vs 1) and iOS requirement (18.0 vs 26.0). Prefume's advantage is update cadence (every 6 days vs every 2 months). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Prefume sells 1 one-off in-app purchase. Kept By asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Prefume against 5.0 for Kept By. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Prefume ships an update every 6 days, Kept By every 2 months. The most recent releases landed on September 25, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Prefume | Kept By |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/prefume/id6749613019/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/kept-by/id6769453316/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 2 months |
| Monetization | Freemium | **Free** |
| Size | 94 MB | 68 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [Anatole Ayadi](https://appshunter.io/developer/1772230666) | [James Jackson](https://appshunter.io/developer/1896659717) |

## 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 |


### Kept By

[App page](https://appshunter.io/ios/app/kept-by/id6769453316)

Digitally preserve cherished paper memories like cards, letters, and notes. Capture images, add details like sender and occasion, and easily organize, search, and revisit your personal keepsakes.

**Highlights:** Digitally preserve paper memories, Capture front, inside, and back images, Add sender, event, date, and notes, Organize and search personal collection, Browse saved keepsakes easily

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

**In-app purchases:** none


## Frequently asked questions

### Is Prefume free?

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

### Is Kept By free?

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

### Which has better reviews, Prefume or Kept By?

Prefume and Kept By are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.

### Do Prefume or Kept By have ads?

Neither Prefume nor Kept By shows ads.

### Which is updated more often, Prefume or Kept By?

Prefume ships an update every 6 days, and Kept By every 2 months. Most recently, Prefume was updated on September 25, 2026 and Kept By on October 1, 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.*