Serial Killer Murder Library vs SkyChecker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Serial Killer Murder Library
Explore a vast collection of information on over 600 serial killers from around the world. Discover their stories, victims, and associated films and TV shows. The app allows sorting by various criteria and sharing content.
- Over 600 serial killers
- Information from 50 countries
- Over 175 film and TV references
- Sort by victims, gender, country, nickname
- Share news and content
- Browse offline (for killer data)
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"This app is by FAR the BEST serial killer app hands down!" - serialkillersink.net Do you have a taste for the disturbed? Do you love the psychology of the sociopath? Every serial killer you could imagine can now be in the palm of your hand. From Bundy to Dahmer, with every killer in between, browse over 600 serial killers throughout history. 5 Stars "Well organized. Great interface. Beats anything online." - by Adrizzzz 5 Stars "Phenomenally insightful and responsible application for this genre." -AnthonyMeoli Who had the most victims? Want to see only female killers? Who was the "Acid Bath Murderer" or who was known as "Alligator Man". Browse over 175 films and TV shows based on serial killers. Discover video you had never heard of. - Share the latest serial killer news - Over 600 killers from 50 countries - Over 175 film/tv references - Sort by number of victims, gender, country and nickname - Share anything on Facebook, Twitter, Email, Camera Roll If you love this app, please take the time to rate it and help spread the word! * Internet connection required to load images. However, you will still be able to browse killers without a connection Attribution for App Previews: "Evening of Chaos" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/
SkyChecker
Identify celestial objects visible from your location with real-time data. Track planets, galaxies, meteor showers, and the ISS. Includes weather integration and planning tools for optimal stargazing.
- Celestial object tracking
- Weather integration for viewing conditions
- Observation planning tools
- Automatic GPS location detection
- Retro terminal-style interface
- ISS pass tracking
- Meteor shower alerts
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Discover whaDiscover what's visible in the night sky tonight — right from your backyard. SkyChecker uses NASA's Jet Propulsion Laboratory data to show you exactly which celestial objects are visible from your location. No guesswork, no complicated star charts — just a simple list of what you can see and when. WHAT YOU CAN TRACK • The Moon with current phase and illumination percentage • All planets from Mercury to Neptune • Deep sky objects: Andromeda Galaxy, Orion Nebula, Pleiades, and more • International Space Station (ISS) passes • Meteor shower alerts with peak times and hourly rates WEATHER INTEGRATION • Live cloud cover and visibility conditions • Observation quality rating (1-5 stars) • Detailed weather breakdown: humidity, wind, cloud layers • Tips for optimal viewing based on current conditions PLANNING TOOLS • Equipment difficulty ratings (Naked Eye, Binoculars, Telescope) • Rise, set, and peak viewing times with compass directions • Date picker to plan future observing sessions • Share tonight's sky with friends and family POWERFUL FEATURES • Automatic GPS location detection • Manual coordinate entry for precise locations • Smart caching for fast app launch • Elegant retro terminal-style interface with ASCII art HOW IT WORKS SkyChecker connects to NASA's Horizons Ephemeris System — the same data source used by professional astronomers — to calculate precise positions for celestial objects based on your exact location and time zone. Weather data comes from Open-Meteo, providing real-time cloud cover, visibility, and atmospheric conditions to help you plan the perfect observing session. PERFECT FOR • Casual stargazers curious about tonight's sky • Amateur astronomers planning observation sessions • Educators teaching astronomy concepts • Anyone who's ever looked up and wondered "what's that?" PRIVACY FOCUSED Your location stays on your device. We don't track you, collect personal data, or show ads. The only external connections are to NASA's public astronomical database and Open-Meteo weather service. Clear skies!
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Verdict
The clearest difference is price: SkyChecker at Free against Serial Killer Murder Library's $3.99. SkyChecker also leads on rating (5.0 vs 4.0) and review sentiment (100% vs 61%). Serial Killer Murder Library's advantage is ratings volume (6 vs 2) and iOS requirement (7.1 vs 16.0). On ads, 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
SkyChecker is free to download; Serial Killer Murder Library costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
SkyChecker holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 6 and 2 respectively. Written reviews point the same way: 61% of Serial Killer Murder Library's written reviews are positive against 100% of SkyChecker's.
Serial Killer Murder Library ships an update every 3 months, SkyChecker every 4 weeks. The most recent releases landed on October 12, 2026 and September 24, 2026 respectively.
| Parameter | Serial Killer Murder Library | SkyChecker |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 4.0 (6 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 60.9% of reviews | 100.0% of reviews — better |
| Number of ratings | 6 — better | 2 |
| Update frequency | Every 3 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 7.1 — better | 16.0 |
| Further details — not scored | ||
| Size | 22 MB | 3 MB |
| Age rating | 17+ | 4+ |
| Developer | Rocket Splash Games | ANDREW DAVID CHAMBERLAIN |
Customer experience
Serial Killer Murder Library
SkyChecker
In-app purchases
Serial Killer Murder Library
No in-app purchases
SkyChecker
No in-app purchases






