# PST Reader · Opener, Converter vs Hum Memo

The clearest difference is review sentiment: Hum Memo at 100% against PST Reader · Opener, Converter's 0%. PST Reader · Opener, Converter's advantage is iOS requirement (16.0 vs 26.2). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. PST Reader · Opener, Converter sells 7 in-app purchases, starting at $8.99 per 7 days and Hum Memo sells 4 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 31, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | PST Reader · Opener, Converter | Hum Memo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (7 ratings)](https://appshunter.io/ios/app/hum-memo/id6791697253/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Monetization | Freemium | Free with in-app purchases |
| Size | 14 MB | 771 MB |
| Requires iOS | **16.0** | 26.2 |
| Devices | **iPhone, iPad, Mac** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Rush Tools LLC](https://appshunter.io/developer/1896773547) | [JZMB GmbH](https://appshunter.io/developer/6800396647) |

## What reviewers say

### PST Reader · Opener, Converter

[App page](https://appshunter.io/ios/app/pst-reader-opener-converter/id6777724591)

Access, read, and convert Outlook PST and OST archive files without needing Outlook installed. This app allows you to quickly open large archives, search for specific content, and export data into various formats like PDF, MBOX, and EML.

**Highlights:** Open PST and OST archives, Read emails, contacts, and calendar events, Full text search across archives, Filter by sender, date, and attachments, Convert archives to PDF, MBOX, EML, Export attachments and contacts, Works fully offline

**Features:** Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $8.99 | per 7 days |
| Pro Weekly | $9.99 | per 7 days |
| Pro Annual | $19.99 | per year |
| Pro Annual | $29.99 | per year |
| Pro Annual | $39.99 | per year |
| Pro Annual | $49.99 | per year |
| Pro Annual | $79.99 | per year |


### Hum Memo

[App page](https://appshunter.io/ios/app/hum-memo/id6791697253)

This voice-first productivity app transforms spoken thoughts, conversations, and meetings into organized notes, actionable tasks, and calendar events. It offers advanced features like multilingual transcription, speaker separation, and AI-powered insights, all while prioritizing user privacy.

**Highlights:** Voice note and meeting recording, Speech-to-text transcription, Task and event extraction, Multilingual and speaker recognition, Searchable notes and folders, Calendar integration

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hum Memo Pro | $12.99 | per month |
| Hum Memo Max | $19.99 | per month |
| Hum Memo Pro | $89.99 | per year |
| Hum Memo Max | $149.99 | per year |


## Frequently asked questions

### Is PST Reader · Opener, Converter free?

PST Reader · Opener, Converter is free to download, with in-app purchases available.

### Is Hum Memo free?

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

### Do PST Reader · Opener, Converter or Hum Memo have ads?

Neither PST Reader · Opener, Converter nor Hum Memo shows ads.

### Which is updated more often, PST Reader · Opener, Converter or Hum Memo?

PST Reader · Opener, Converter ships an update weekly, and Hum Memo weekly. Most recently, PST Reader · Opener, Converter was updated on October 31, 2026 and Hum Memo 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.*