Comparison

Astromech Vocalizer vs BTTF Clock

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

Head to head
About

Astromech Vocalizer

Create unique astromech droid sounds with advanced AI. Customize grammar, vocabulary, pitch, and emotions to generate original vocalizations. Manually script sounds or let the AI guide you for a personalized droid voice.

Highlights
  • AI-powered astromech vocalizations
  • Customizable grammar and vocabulary
  • Adjustable pitch and emotional nature
  • Unique sound generation algorithm
  • Manual scripting with AI guidance
  • Save and recall custom vocalizations
Features
Read full description

Generate unique, emotional astromech vocalizations with the press of a button! The Astromech Vocalizer is a fully functional AI. The software is powered by advanced research into the speech patterns and emotional logic of R2-D2. Users can design their very own astromech voice by customizing the droid's grammar, vocabulary, accent, emotional nature, pitch, and effects. Whether designing a voice for an existing droid without vocal precedent or a droid of your own creation, the Astromech Vocalizer gives life to a never-before-heard astromech. After customizing a voice, press an emotional stimulus button and the astromech will respond. Its emotions will shift based on the personality you selected. It will then vocalize its new emotions. Each vocalization is unique. A sophisticated algorithm assembles the astromech's speech "syllable" by "syllable." Billions upon billions of rules dictate how each sound should be selected, processed, timed, and sequenced to achieve based on R2-D2's emotional and grammatical precedent. For more control, use the Script panel to create a vocalization manually. The software's grammatical AI provides canonically-appropriate recommendations to guide you towards a coherent vocalization. Then store your custom vocalization to memory where it can be recalled either verbatim or with organic, AI-powered variation. This software is entirely free and contains no advertisements or in-app purchases. For more information on the Human-Cyborg Relations project, please visit humancyborgrelations.com

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.

Screenshots

Astromech Vocalizer4 screens
BTTF Clock4 screens

Verdict

The call

The clearest difference is review sentiment: BTTF Clock at 84% against Astromech Vocalizer's 0%. BTTF Clock also leads on update cadence (every 6 weeks vs every 9 months) and rating (4.6 vs 4.3). Astromech Vocalizer's advantage is iOS requirement (11.0 vs 15.6). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

BTTF Clock holds the better App Store score, 4.6 against 4.3. Both are backed by a comparable volume of ratings — 10 and 31 respectively. Written reviews point the same way: 0% of Astromech Vocalizer's written reviews are positive against 84% of BTTF Clock's.

UpkeepUpdate frequency

Astromech Vocalizer ships an update every 9 months, BTTF Clock every 6 weeks. The most recent releases landed on September 20, 2026 and October 13, 2026 respectively.

Scorecard5 real differences · 5 level
Astromech Vocalizer versus BTTF Clock: the parameters behind the verdict, then further details
ParameterAstromech VocalizerBTTF Clock
PriceFreeFree
Rating4.3 (10 ratings)4.6 (31 ratings) — better
Positive reviews0.0% of reviews84.0% of reviews — better
Number of ratings1031 — better
Update frequencyEvery 9 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better15.6
Further details — not scored
Size171 MB75 MB
Age rating4+4+
DeveloperMichael PerlSergei Bazarnik

Customer experience

Astromech Vocalizer

All ratings10 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

BTTF Clock

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

In-app purchases

None

Astromech Vocalizer

No in-app purchases

None

BTTF Clock

No in-app purchases

Questions

Is Astromech Vocalizer free?
Astromech Vocalizer is free to download, with no in-app purchases.
Is BTTF Clock free?
BTTF Clock is free to download, with no in-app purchases.
Which has better reviews, Astromech Vocalizer or BTTF Clock?
BTTF Clock is rated higher. Astromech Vocalizer averages 4.3 out of 5 from 10 ratings, while BTTF Clock averages 4.6 from 31 ratings.
Do Astromech Vocalizer or BTTF Clock have ads?
Neither Astromech Vocalizer nor BTTF Clock shows ads.
Which is updated more often, Astromech Vocalizer or BTTF Clock?
Astromech Vocalizer ships an update every 9 months, and BTTF Clock every 6 weeks. Most recently, Astromech Vocalizer was updated on September 20, 2026 and BTTF Clock on October 13, 2026.

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