# Prombot vs OLM Converter · Viewer, Reader

The clearest difference is update cadence: OLM Converter · Viewer, Reader at weekly against Prombot's monthly. OLM Converter · Viewer, Reader also leads on device support (4 vs 2). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Prombot sells 1 in-app purchase, starting at $4.99 per month and OLM Converter · Viewer, Reader sells 8 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Prombot ships an update monthly, OLM Converter · Viewer, Reader weekly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Prombot | OLM Converter · Viewer, Reader |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 80 MB | 24 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 12+ | 4+ |
| Developer | [rakan halloush](https://appshunter.io/developer/1887145087) | [RUSH TOOLS LLC](https://appshunter.io/developer/1896773547) |

## What reviewers say

### Prombot

[App page](https://appshunter.io/ios/app/prombot-ai-tool-builder/id6760984113)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Plan | $4.99 | per month |


### OLM Converter · Viewer, Reader

[App page](https://appshunter.io/ios/app/olm-converter-viewer-reader/id6781821148)

Easily open, read, and convert Outlook for Mac archive files (.olm) on your devices. Browse mail, contacts, calendars, and tasks, then export them to various formats like MBOX, PDF, and CSV without needing Outlook.

**Highlights:** Open .olm archives without Outlook, Read mail, contacts, calendar, notes, tasks, Browse full folder tree, Search mail by subject, sender, text, Convert to MBOX, EML, PDF, CSV, HTML, vCard, ICS, Export entire mailboxes or selected folders, Works offline on device

**Features:** Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $4.99 | 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 |
| Pro Lifetime | $59.99 | one-time |


## Frequently asked questions

### Is Prombot free?

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

### Is OLM Converter · Viewer, Reader free?

OLM Converter · Viewer, Reader is free to download, with in-app purchases available.

### Do Prombot or OLM Converter · Viewer, Reader have ads?

Neither Prombot nor OLM Converter · Viewer, Reader shows ads.

### Which is updated more often, Prombot or OLM Converter · Viewer, Reader?

Prombot ships an update monthly, and OLM Converter · Viewer, Reader weekly. Most recently, Prombot was updated on October 25, 2026 and OLM Converter · Viewer, Reader 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.*