# Positive K9 vs Boulder Bud

The clearest difference is update cadence: Boulder Bud at every 5 days against Positive K9's every 3 months. Boulder Bud also leads on iOS requirement (12.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

Positive K9 ships an update every 3 months, Boulder Bud every 5 days. The most recent releases landed on September 24, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Positive K9 | Boulder Bud |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Size | 55 MB | 35 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Momence, Inc.](https://appshunter.io/developer/1577856011) | [Connor Dougherty-Keehan](https://appshunter.io/developer/1788423986) |

## What reviewers say

### Positive K9

[App page](https://appshunter.io/ios/app/positive-k9/id6708240971)

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

**In-app purchases:** none


### Boulder Bud

[App page](https://appshunter.io/ios/app/boulder-bud/id6740111265)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Positive K9 free?

Positive K9 is free to download, with no in-app purchases.

### Is Boulder Bud free?

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

### Do Positive K9 or Boulder Bud have ads?

Neither Positive K9 nor Boulder Bud shows ads.

### Which is updated more often, Positive K9 or Boulder Bud?

Positive K9 ships an update every 3 months, and Boulder Bud every 5 days. Most recently, Positive K9 was updated on September 24, 2026 and Boulder Bud on September 9, 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.*