# R66 Clock vs Route 66 Ultimate Guide

The clearest difference is in-app purchases: Route 66 Ultimate Guide at none against R66 Clock's 1. Route 66 Ultimate Guide also leads on iOS requirement (13.0 vs 26.0). R66 Clock's advantage is update cadence (every 4 days vs fortnightly). On price, ads and device support there is nothing between them.

Both are free to download. R66 Clock sells 1 one-off in-app purchase. Route 66 Ultimate Guide asks for nothing beyond the download.

R66 Clock ships an update every 4 days, Route 66 Ultimate Guide fortnightly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | R66 Clock | Route 66 Ultimate Guide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.3 (23 ratings)](https://appshunter.io/ios/app/route-66-ultimate-guide/id6764766057/reviews)** |
| Number of ratings | — | **23** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Fortnightly |
| Monetization | — | Free |
| Size | 8 MB | 71 MB |
| Requires iOS | 26.0 | **13.0** |
| Devices | iPhone, Mac | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kinya Nakayama](https://appshunter.io/developer/1884487435) | [McCoyCORE USA LLC](https://appshunter.io/developer/1609901734) |

## What reviewers say

### R66 Clock

[App page](https://appshunter.io/ios/app/r66-clock/id6760439983)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy me a coffee | $0.99 | one-time |


### Route 66 Ultimate Guide

[App page](https://appshunter.io/ios/app/route-66-ultimate-guide/id6764766057)

This travel companion helps you explore "The Mother Road" with detailed points of interest, virtual passport stamps, and audio tours. Plan your journey, navigate turn-by-turn, and stay updated on Route 66 news and events.

**Highlights:** Trip planning, Points-of-Interest details, Virtual Passport, Audio Tours, Turn-by-Turn Navigation, Route 66 News & Events

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

**In-app purchases:** none


## Frequently asked questions

### Is R66 Clock free?

R66 Clock is free to download, with in-app purchases available.

### Is Route 66 Ultimate Guide free?

Route 66 Ultimate Guide is free to download, with no in-app purchases.

### Do R66 Clock or Route 66 Ultimate Guide have ads?

Neither R66 Clock nor Route 66 Ultimate Guide shows ads.

### Which is updated more often, R66 Clock or Route 66 Ultimate Guide?

R66 Clock ships an update every 4 days, and Route 66 Ultimate Guide fortnightly. Most recently, R66 Clock was updated on October 25, 2026 and Route 66 Ultimate Guide 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.*