# KARR vs BTTF Clock

The clearest difference is review sentiment: BTTF Clock at 84% against KARR's 0%. BTTF Clock also leads on price (Free vs $8.99) and rating (4.6 vs 1.0). KARR's advantage is iOS requirement (9.0 vs 15.6). On ads and in-app purchases there is nothing between them.

BTTF Clock is free to download; KARR costs $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

BTTF Clock holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: BTTF Clock has 32 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of KARR's written reviews are positive against 84% of BTTF Clock's.

## The numbers

| Metric | KARR | BTTF Clock |
| --- | --- | --- |
| Price | $8.99 | **Free** |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/karr-the-roving-robot/id1607026928/reviews) | **[4.6 (32 ratings)](https://appshunter.io/ios/app/bttf-clock/id6740161583/reviews)** |
| Number of ratings | 1 | **32** |
| Positive reviews | 0.0% of reviews | **84.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 5 weeks |
| Monetization | Paid | **Free** |
| Size | 79 MB | 89 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Alvar Seeberg](https://appshunter.io/developer/960358851) | [Sergei Bazarnik](https://appshunter.io/developer/1722100966) |

## What reviewers say

### KARR

[App page](https://appshunter.io/ios/app/karr-the-roving-robot/id1607026928)

Experience the iconic 80s TV series by interacting with a beloved character. Engage in conversations and explore various modes, bringing the Knight Rider world to life on your device. A must-have for fans seeking an immersive and nostalgic connection.

**Highlights:** Talk with KARR, High fidelity recreation of KARR Systems, Test cruise and pursuit modes, Explore consoles and switch pods, Immersive and engaging experience

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

**In-app purchases:** none


### BTTF Clock

[App page](https://appshunter.io/ios/app/bttf-clock/id6740161583)

Experience the magic of time travel with a digital recreation of the iconic DeLorean dashboard. This app features customizable date panels, real-time clock updates, and authentic sound effects from the "Back to the Future" trilogy. It's designed to run smoothly on older devices, bringing cinematic nostalgia to your phone or tablet.

**Highlights:** Iconic time display panels, Customizable destination, present, and last departed times, Real-time accurate clock, Interactive interface for date changes, Authentic movie sound effects, Optimized for older devices

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is KARR free?

KARR costs $8.99, with no in-app purchases.

### Is BTTF Clock free?

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

### Which has better reviews, KARR or BTTF Clock?

BTTF Clock is rated higher. KARR averages 1.0 out of 5 from 1 ratings, while BTTF Clock averages 4.6 from 32 ratings.

### Do KARR or BTTF Clock have ads?

Neither KARR nor BTTF Clock shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*