Comparison

BTTF Clock vs NEXUS Protocol

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

BTTF Clock

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
Read full description

Relive the magic of time travel with the BTTF Clock! Inspired by the iconic clock from the "Back to the Future" trilogy, this app brings the excitement of the DeLorean's dashboard right to your device. Whether you're using a phone or tablet you can enjoy the nostalgia of the iconic time machine. Best of all, it's optimized to run smoothly even on outdated devices, so no one gets left behind in the past. Key Features: • Iconic Time Display: Experience the legendary "Destination Time," "Present Time," and "Last Time Departed" panels, faithfully recreated with stunning detail. • Customizable Dates: Set your own dates for each panel and watch as the app mimics the flux capacitor's data changes. • Real-time Clock: Always stay on schedule with the accurate present time display. • Interactive Interface: Tap on the clock panels to change dates and relive the thrill of setting your time travel destination. • Sound Effects: Enjoy authentic sound effects from the movie to enhance your time travel experience. • Car Mode: Combine the Time Circuits, flux capacitor, and GPS speedometer in an immersive dashboard. • Manual Speed Simulation: Press and hold the speedometer to accelerate and feel speed-responsive haptic feedback as you approach the selected time-travel speed. • Cinematic Time Travel: Reach the configured speed to trigger a full-screen time-travel sequence with visual transitions and sound effects. • Home Screen and CarPlay Widget: Keep the Time Circuits visible at a glance with a configurable widget for your Home Screen and CarPlay. • Optimized for Outdated Devices: Designed to run efficiently on older devices, ensuring smooth performance without compromising on features. Target Audience: • Fans of the "Back to the Future" trilogy. • Retro and classic movie enthusiasts. • Anyone who enjoys unique and themed timekeeping apps. • Users with older devices seeking fun and functional apps.

About

NEXUS Protocol

Engage in a symbolic sci-fi experience by answering identity-based questions. Uncover your classified profile as Human, Hybrid, or Replicant through a dark, interactive interface exploring memory, empathy, and self-perception.

Highlights
  • Cinematic identity questions
  • Human, Hybrid, Replicant classification
  • Symbolic self-reflection
  • Dark interactive interface
  • Shareable identity certificate
  • Inner Portrait generation
Features
Read full description

NEXUS Protocol is a symbolic sci-fi introspection experience. Answer a cinematic protocol of identity questions and reveal a classified profile: Human, Hybrid, or Replicant. The experience explores memory, empathy, control, emotion, and self-perception through a dark interactive interface. Complete the full 57-question protocol to discover your classification, explore your identity profile, generate symbolic artifacts, and create a shareable identity certificate. NEXUS Protocol includes: • Full 57-question protocol • Human, Hybrid, or Replicant classification • Expanded identity profile • Signal Resonance analysis • Inner Portrait • Shareable identity certificate • Shadow Dossier and symbolic artifacts • Optional local results storage • Optional account backup and restoration All features and content are available without signing in or making a purchase. Optional in-app purchases—Signal, Pulse, Beacon, and Protocol—allow users to support the continued development of NEXUS Protocol. These contributions do not unlock content or functionality. NEXUS Protocol is designed for symbolic self-reflection and entertainment. It is not a medical, psychological, diagnostic, or therapeutic app. Terms of Use: https://nexus-protocol.app/terms.html Privacy Policy: https://nexus-protocol.app/privacy.html NEXUS Protocol is for those who question what makes us human.

Screenshots

BTTF Clock4 screens
NEXUS Protocol4 screens

Verdict

The call

The clearest difference is in-app purchases: BTTF Clock at none against NEXUS Protocol's 2. BTTF Clock also leads on ratings volume (31 vs 1) and device support (3 vs 1). NEXUS Protocol's advantage is rating (5.0 vs 4.6) and update cadence (every 2 weeks vs every 6 weeks). On price and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. NEXUS Protocol sells 2 in-app purchases, starting at $7.99 per month. BTTF Clock asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

NEXUS Protocol holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: BTTF Clock has 31 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

BTTF Clock ships an update every 6 weeks, NEXUS Protocol every 2 weeks. The most recent releases landed on October 13, 2026 and September 24, 2026 respectively.

Scorecard7 real differences · 3 level
BTTF Clock versus NEXUS Protocol: the parameters behind the verdict, then further details
ParameterBTTF ClockNEXUS Protocol
PriceFreeFree
Rating4.6 (31 ratings)5.0 (1 ratings) — better
Positive reviews84.0% of reviews—
Number of ratings31 — better1
Update frequencyEvery 6 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.6 — better17.6
Further details — not scored
Size75 MB135 MB
Age rating4+9+
DeveloperSergei BazarnikJean Marc Moro

Customer experience

BTTF Clock

All ratings31 ratings
Positive93.5%
Neutral3.2%
Negative3.2%
Written reviews25 reviews
Positive84.0%
Neutral8.0%
Negative8.0%

NEXUS Protocol

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

BTTF Clock

No in-app purchases

2 purchases

NEXUS Protocol

Subscriptions1
  • Shadow Dossier$7.991 Month
One-time1
  • One Shadow Reveal$4.99

Questions

Is BTTF Clock free?
BTTF Clock is free to download, with no in-app purchases.
Is NEXUS Protocol free?
NEXUS Protocol is free to download, with in-app purchases available.
Which has better reviews, BTTF Clock or NEXUS Protocol?
NEXUS Protocol is rated higher. BTTF Clock averages 4.6 out of 5 from 31 ratings, while NEXUS Protocol averages 5.0 from 1 ratings.
Do BTTF Clock or NEXUS Protocol have ads?
Neither BTTF Clock nor NEXUS Protocol shows ads.
Which is updated more often, BTTF Clock or NEXUS Protocol?
BTTF Clock ships an update every 6 weeks, and NEXUS Protocol every 2 weeks. Most recently, BTTF Clock was updated on October 13, 2026 and NEXUS Protocol on September 24, 2026.

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