Quadcorder vs Sci
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Quadcorder
Transform your device into a futuristic scanner with multiple animated scanning modes and sound effects. Perfect for sci-fi enthusiasts looking to enhance their imaginative play and role-playing experiences.
- Futuristic scanning device simulation
- Three distinct scanning modes
- Animated graphics
- Sound effects
- Customizable background volume and sound
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Turn your iPhone/iPod touch into a futuristic scanning device! Has three scanning modes, with animated graphics and sound effects! No sci-fi fan should be without it! If you have a phaser and a communicator, then all you need is Quadcorder and you will be set to explore the galaxy! Check out a video of Quadcorder in action, click on my website below! To access the other animations, press the Library AB button once. Then press one of the DEVICE INPUT buttons that is not currently active. Special Note: Under the Settings application, there are controls for background volume and background sound. The background sound is off by default. This app is intended for entertainment purposes only and does not provide true functionality.
Sci
Explore a universe of over 50 unique science fiction sound effects. This app offers a diverse collection of interstellar noises, from alien calls and laser blasts to spaceship engines and robotic chatter.
- Over 50 sci-fi sound effects
- Alien sounds
- Laser sounds
- Spaceship sounds
- Robot sounds
- Weapon sounds
- Mood music
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Travel through space and time with more than 50 fun sci-fi sound effects! Out of this world sounds include: martian death ray, lasers, UFOs, aliens, weapons, robots, spaceships, background mood music and more fun sound effects! Get the best sci-fi soundboard app now! Sci-fi sound effects and soundboards include: Alien sounds - brain scanner - creature - roar - scanner - slime - spawn Invasion - Mars attacks - spaceship door - spaceship hatch - intruder alert - red alert - death ray Laser sounds - burst - cannon - machine gun - ray gun - retro - shot Mood sound effects - eerie - freaky drone - horror - menace - shivers - suspense Random sounds - comet - energy whip - sonar ping - sonic boom - time bomb - time travel Robot sounds - babble - chatter - communications - computing - movement - dying Spaceship sounds - take off - fly by - fly bys - UFO - thrusters - power down Synth sound effects - action - bounce - chase - intro - storm - transition Weapon sounds - grenade - machine gun - M16 - P90 - shotgun - uzi Download the best sci-fi sounds app and blast those alien vermin!
Screenshots
Verdict
The clearest difference is price: Sci at Free against Quadcorder's $1.99. Quadcorder's advantage is ads (none vs shown) and chart position (#169 vs unranked). On rating, update cadence, in-app purchases and device support 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
Sci is free to download; Quadcorder costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 3.9 for Quadcorder against 4.0 for Sci. That said, the two scores are not equally well evidenced: Quadcorder has 80 ratings behind it against 13, so its average is the more settled of the two. Written reviews are what separate them: 67% of Quadcorder's written reviews are positive against 56% of Sci's.
Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on September 26, 2026 and September 18, 2026 respectively.
| Parameter | Quadcorder | Sci |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 3.9 (80 ratings) | 4.0 (13 ratings) — better |
| Positive reviews | 66.9% of reviews — better | 56.0% of reviews |
| Number of ratings | 80 — better | 13 |
| Update frequency | Every 4 months | Every 4 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Free with in-app purchases |
| Best chart rank | #169 — better | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 7.0 — better | 18 |
| Further details — not scored | ||
| Size | 9 MB | 15 MB |
| Age rating | 4+ | 9+ |
| Developer | Adam McElhaney | iGreenEarth |
Customer experience
Quadcorder
Sci
Bugs and requests
Quadcorder
Reported bugs
10 issues- Sound stops working after iOS updates
- Emergency data upload button animation broken
- App crashes on iOS 9 and later versions
- No audio on iOS 14.2 and newer
- Intermittent sound functionality
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- Library button no longer switches input categories
- GPS and decibel readings show random numbers
- App not appearing in Settings for sound control
- Screen ratio not optimized for iPhone 5, 5s, 6s Plus
- Coordinates and decibel level functions non-functional
Requested features
14 requests- Update for iPhone 14+ and iPad Pro screen sizes
- Real sensor integration (camera, GPS, accelerometer)
- Medical/body scan display screen
- More interactive screens and functionality
- Voyager or Nemesis tricorder variants
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- Background scanning sound toggle in app settings
- Custom image display on screen
- Actual scanning sound tied to motion/gestures
- Additional emergency alerts and life sign notifications
- Code blue and medical alert sounds
- iPad version with full screen support
- LCARS interface improvements
- More button interactivity and options
- Off button to toggle beeps and lights
Sci
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Quadcorder
No in-app purchases
Sci
No in-app purchases
