# BRISTOL vs +Compass+

The clearest difference is in-app purchases: +Compass+ at none against BRISTOL's 1. BRISTOL's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. BRISTOL sells 1 one-off in-app purchase. +Compass+ asks for nothing beyond the download.

Both ship on a similar rhythm, roughly monthly. Both last shipped on September 18, 2026.

## The numbers

| Metric | BRISTOL | +Compass+ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Monthly | Monthly |
| Size | 3 MB | 5 MB |
| Requires iOS | 14.7 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Christopher Britton](https://appshunter.io/developer/1509732288) | [Michael Todd](https://appshunter.io/developer/1211079532) |

## What reviewers say

### BRISTOL

[App page](https://appshunter.io/ios/app/bristol-calculator/id1509732291)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| bristol calculator storage | $3.99 | one-time |


### +Compass+

[App page](https://appshunter.io/ios/app/plus-compass-plus/id6578449109)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BRISTOL free?

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

### Is +Compass+ free?

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

### Do BRISTOL or +Compass+ have ads?

+Compass+ shows ads; BRISTOL does not.

### Which is updated more often, BRISTOL or +Compass+?

BRISTOL ships an update monthly, and +Compass+ monthly. Most recently, BRISTOL was updated on September 18, 2026 and +Compass+ on September 18, 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.*