# Pensieve vs Moleculist

The clearest difference is in-app purchases: Moleculist at none against Pensieve's 4. Moleculist also leads on update cadence (every 2 weeks vs every 6 weeks). Pensieve's advantage is review sentiment (91% vs 78%) and ratings volume (82 vs 19). On price, rating and ads there is nothing between them.

Both are free to download. Pensieve sells 4 in-app purchases, starting at $0.99 per month. Moleculist asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for Pensieve against 4.7 for Moleculist. Both are backed by a comparable volume of ratings — 82 and 19 respectively. Written reviews are what separate them: 91% of Pensieve's written reviews are positive against 78% of Moleculist's.

Pensieve ships an update every 6 weeks, Moleculist every 2 weeks. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Pensieve | Moleculist |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (82 ratings)](https://appshunter.io/ios/app/pensieve-email-me-notes/id797364106/reviews) | **[4.7 (19 ratings)](https://appshunter.io/ios/app/moleculist/id6747411859/reviews)** |
| Number of ratings | **82** | 19 |
| Positive reviews | **91.2% of reviews** | 77.8% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 33 MB | 142 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Window Seat Labs, LLC](https://appshunter.io/developer/797364109) | [Bijjol Rambhia Kiran](https://appshunter.io/developer/1821354717) |

## What reviewers say

### Pensieve

[App page](https://appshunter.io/ios/app/pensieve-email-me-notes/id797364106)

Easily capture fleeting thoughts, ideas, and to-dos by emailing them to yourself. This app provides quick capture tools like audio recording, photo attachments, and text pasting, ensuring your ideas are saved without interrupting your flow. It prioritizes user privacy with no data mining or ads.

**Highlights:** Audio recording with speech-to-text, Built-in camera for photo attachments, Attachment picker for photos and files, Quick paste for text, links, and images, Email from Apple Watch, Share extension for in-app capture, Customizable email formatting, Offline capture

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Boost Monthly | $0.99 | per month |
| All Access Monthly | $2.99 | per month |
| Boost Yearly | $9.99 | per year |
| All Access Yearly | $24.99 | per year |


### Moleculist

[App page](https://appshunter.io/ios/app/moleculist/id6747411859)

Organize your life by transforming interests into a cosmic, animated universe. Track books, movies, plants, food, games, people, and more with visually stunning displays and effortless data entry. Seamlessly integrate with other apps to capture discoveries and memories.

**Highlights:** Molecular home screen with animated universe, One-tap adding for various life elements, Automatic data extraction from websites, Detailed tracking with notes and tags, Seamless iPad experience, Smart sharing via Share Sheet, Export and backup functionality

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

**In-app purchases:** none


## Frequently asked questions

### Is Pensieve free?

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

### Is Moleculist free?

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

### Which has better reviews, Pensieve or Moleculist?

Moleculist is rated higher. Pensieve averages 4.7 out of 5 from 82 ratings, while Moleculist averages 4.7 from 19 ratings.

### Do Pensieve or Moleculist have ads?

Neither Pensieve nor Moleculist shows ads.

### Which is updated more often, Pensieve or Moleculist?

Pensieve ships an update every 6 weeks, and Moleculist every 2 weeks. Most recently, Pensieve was updated on October 23, 2026 and Moleculist on October 24, 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.*