# Hypothesis vs The Memory Book

The clearest difference is in-app purchases: Hypothesis at none against The Memory Book's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. The Memory Book sells 2 in-app purchases, starting at $4.99 per month. Hypothesis asks for nothing beyond the download.

Hypothesis ships an update every 2 weeks, The Memory Book every 3 weeks. The most recent releases landed on October 9, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Hypothesis | The Memory Book |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/the-memory-book/id6748554364/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 56 MB | 77 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [van squared](https://appshunter.io/developer/1063072271) | [Sergey Guzev](https://appshunter.io/developer/1826262722) |

## What reviewers say

### Hypothesis

[App page](https://appshunter.io/ios/app/hypothesis/id1460571224)

This app presents a new question daily, allowing users to anonymously share their opinions. Users can track how their viewpoints evolve over time and compare their thoughts to the majority.

**Highlights:** Daily new questions, Anonymous opinion sharing, Track opinion changes, Compare with masses, Quick and easy to use

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

**In-app purchases:** none


### The Memory Book

[App page](https://appshunter.io/ios/app/the-memory-book/id6748554364)

Easily capture and preserve family stories and memories through voice recordings. The app offers gentle prompts to guide storytelling and automatically transcribes audio to text. Create a lasting legacy by compiling these memories into a private, personal PDF or printed book.

**Highlights:** Voice recording of memories, Automatic transcription to text, Gentle storytelling prompts, PDF and printed book creation, Private and secure family archive, Simple, user-friendly interface

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Start Plan | $4.99 | per month |
| Lifetime Plan | $149.00 | one-time |


## Frequently asked questions

### Is Hypothesis free?

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

### Is The Memory Book free?

The Memory Book is free to download, with in-app purchases available.

### Do Hypothesis or The Memory Book have ads?

Neither Hypothesis nor The Memory Book shows ads.

### Which is updated more often, Hypothesis or The Memory Book?

Hypothesis ships an update every 2 weeks, and The Memory Book every 3 weeks. Most recently, Hypothesis was updated on October 9, 2026 and The Memory Book on October 2, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*