Comparison

Seismometer+ vs RadMap

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

Head to head
About

Seismometer+

Transform your device into a powerful seismometer to measure and visualize vibrations in real time. Track tremors, analyze surface stability, and explore the unseen movements around you with intuitive graphical displays. Perfect for science enthusiasts and the curious.

Highlights
  • Real-time X, Y, Z axis acceleration graphs
  • Cumulative vibration intensity analysis
  • Adjustable long-term data recording intervals
  • Dark mode display
  • Customizable graph update rates and sensitivity
Features
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Seismometer - Real-Time Vibration Analysis Measure everything that vibrates, shakes or moves. Or why not an actual earthquake? Transform your device into a powerful seismometer! This app uses precise acceleration data from your device to measure vibrations and display them graphically, just like a classic seismograph. Whether you're a science enthusiast or just curious about the world around you, this app makes vibration tracking simple and intuitive. Features: * Real-Time Graphs: Visualize X, Y, and Z-axis accelerations in real time with a classic seismograph-style display. *Cumulative Analysis: View the overall vibration intensity with a combined graph for long-term tracking. * Adjustable Recording Intervals: Set custom time intervals for long-term data recording to suit your needs. * Dark Mode: Enjoy a sleek, modern design optimized for dark mode, perfect for low-light environments. * Customizable Settings: Tailor the app to your preferences, from graph update rates to display sensitivity. Perfect For: Detecting subtle vibrations and tremors. Understanding the movement and stability of surfaces. Science experiments, education, and general curiosity. Download Seismometer today and explore the unseen vibrations of your world!

About

RadMap

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Live ambient radiation readings, on one map. RadMap gathers open data from Korea's national monitoring network (IERNet, operated by KINS), Japan's national network (RAMIS, operated by the Nuclear Regulation Authority), France's Téléray network (operated by ASNR, the French nuclear safety and radiation protection authority), and the Safecast citizen sensor network, and shows the current ambient gamma dose rate. WHAT YOU CAN SEE - Live readings from roughly 490 official Korean monitoring posts - Japan's official network across all 47 prefectures, plus the dense grid around nuclear facilities - France's official Téléray network: about 450 stations across mainland France, its overseas territories and around nuclear sites, updated every 15 minutes - Safecast citizen sensors worldwide - Map, list and per-station detail, with the trend over time BUILT SO THE NUMBERS CAN BE READ - Every dose band carries a text label such as "Normal" or "Slightly high" alongside its colour. Colour is never the only signal. - Readings are compared to familiar amounts: one X-ray, one flight, a year of natural background. - Where many stations overlap, they are grouped and shown as an average dose. - All figures use tabular figures, so the layout never shifts as a value changes. WHAT THIS APP PROMISES - The summary at the top of the screen covers Korea. It is calculated from the live readings of official Korean stations, never a pre-written sentence. If any of them rises above its normal band, it becomes an alert. - Every reading carries a provenance badge. Government networks and citizen sensors are never blended together. - Citizen sensors are not cross-calibrated, so they are never used to judge the picture across Korea. - No ads are shown while any official station is above its normal band. PLEASE NOTE This is an unofficial app that presents publicly available data in a readable form. Do not rely on it for official announcements or emergency decisions; for official information, please consult the relevant regulator. Available in Korean, English, Japanese and French.

Screenshots

Seismometer+4 screens
RadMap4 screens

Verdict

The call

Seismometer+ and RadMap are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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.

ScorecardNo meaningful differences
Seismometer+ versus RadMap: the parameters behind the verdict, then further details
ParameterSeismometer+RadMap
PriceFreeFree
Rating4.5 (82 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings82 — better—
Update frequency—Every 9 days
AdsYesYes
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size3 MB24 MB
Age rating4+4+
DeveloperUniCom TechnologyByung Kwon Jeon

In-app purchases

None

Seismometer+

No in-app purchases

None

RadMap

No in-app purchases

Questions

Is Seismometer+ free?
Seismometer+ is free to download, with no in-app purchases.
Is RadMap free?
RadMap is free to download, with no in-app purchases.
Do Seismometer+ or RadMap have ads?
Both Seismometer+ and RadMap show ads.

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