# PartsBase vs Rotabull

PartsBase and Rotabull both sit at 4.4 stars, but that hides the real split: 100% of PartsBase's written reviews are positive against 50% of Rotabull's. Rotabull's advantage is update cadence (fortnightly vs every 2 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.4 for PartsBase against 4.3 for Rotabull. Both are backed by a comparable volume of ratings — 7 and 8 respectively. Written reviews are what separate them: 100% of PartsBase's written reviews are positive against 50% of Rotabull's.

PartsBase ships an update every 2 months, Rotabull fortnightly. The most recent releases landed on September 17, 2026 and August 21, 2026 respectively.

## The numbers

| Metric | PartsBase | Rotabull |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (7 ratings)](https://appshunter.io/ios/app/partsbase/id1478302547/reviews)** | [4.3 (8 ratings)](https://appshunter.io/ios/app/rotabull/id1524587454/reviews) |
| Number of ratings | 7 | **8** |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 35 MB | 36 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [PartsBase, Inc](https://appshunter.io/developer/1438651176) | [Rotabull, Inc.](https://appshunter.io/developer/744423022) |

## What reviewers say

### PartsBase

[App page](https://appshunter.io/ios/app/partsbase/id1478302547)

This app connects buyers and sellers in the aviation, aerospace, and defense industries. It allows users to search for parts, send and receive RFQs and quotes, and manage inventory. It serves a global network of over 7,500 companies.

**Highlights:** Search stock items by part number, Cross-reference with MCRL, PMA, NATO, Send RFQs to sellers, Send and receive quotes, Add and update inventory

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

**In-app purchases:** none


### Rotabull

[App page](https://appshunter.io/ios/app/rotabull/id1524587454)

This business app helps sales professionals manage RFQs and respond to opportunities directly from their mobile devices. It offers a secure and efficient way to stay updated on sales leads in real time, allowing users to view and answer requests on the go.

**Highlights:** View RFQs in one place, Respond to quotes from phone, Real-time sales opportunity tracking, Secure productivity tool, Mobile sales management

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

**In-app purchases:** none


## Frequently asked questions

### Is PartsBase free?

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

### Is Rotabull free?

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

### Which has better reviews, PartsBase or Rotabull?

PartsBase is rated higher. PartsBase averages 4.4 out of 5 from 7 ratings, while Rotabull averages 4.3 from 8 ratings.

### Do PartsBase or Rotabull have ads?

Neither PartsBase nor Rotabull shows ads.

### Which is updated more often, PartsBase or Rotabull?

PartsBase ships an update every 2 months, and Rotabull fortnightly. Most recently, PartsBase was updated on September 17, 2026 and Rotabull on August 21, 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.*