Comparison

Eclipse Map vs PhosphorSol

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

Head to head
About

Eclipse Map

Explore solar and lunar eclipses from -1999 to 3000. Visualize eclipse paths on a map and calculate observable events and times for any location on Earth.

Highlights
  • Eclipse data from -1999 to 3000
  • Visualize eclipse paths on a map
  • Calculate observable events and times
  • Query eclipse type and time
  • Location-specific eclipse predictions
Features
Read full description

The "Eclipse Map" app provides solar and lunar eclipse data from -1999 to 3000, and can query the time and type of any solar or lunar eclipse in 5000 years. The "Eclipse Map" app visualizes the distribution area of ​​each solar or lunar eclipse on the earth on the map by calculation. It can also calculate the observable events and event times of any point on the map during the solar or lunar eclipse. In addition, it can also calculate the observable events and time of each solar or lunar eclipse at a given location .

About

PhosphorSol

Features
Read full description

PhosphorSol is a real-time space weather monitoring station for your iPhone, presenting live solar data from NOAA's Space Weather Prediction Center through a retro CRT phosphor display interface. Track the conditions between the Sun and Earth across six dedicated displays: STATUS — Your mission control dashboard. An animated ASCII Sun with shimmering corona sits above the NOAA R/S/G threat scale indicators for radio blackouts, solar radiation storms, and geomagnetic disturbances. At a glance: current solar wind speed, Kp index, X-ray flux classification, and aurora probability at your latitude, with a miniature Kp trend chart showing recent geomagnetic activity. WIND — Live telemetry from the DSCOVR satellite at the L1 Lagrange point, one million miles sunward. Three scrolling strip-chart traces display solar wind speed, IMF Bz magnetic field component, and proton density in real time. The Bz trace is colour-coded: green when the interplanetary magnetic field points northward (Earth's magnetosphere shielded), red when it swings southward (geomagnetic coupling begins). Six-hour statistics and a conditions reference guide complete the picture. Kp — The planetary Kp geomagnetic disturbance index rendered as a colour-coded bar chart spanning observed readings and NOAA forecast periods. Bars transition from green through amber to red as storm thresholds are crossed. Below the chart: observed statistics with min/max/average readings, storm period counts, a tabulated 3-hour Kp forecast, and the NOAA G-scale legend from G1 Minor through G5 Extreme. XRAY — Solar X-ray flux from the GOES primary satellite plotted on a logarithmic scale with flare classification thresholds marked at A, B, C, M, and X class levels. The trace changes colour by intensity. Below: a detailed log of recent flare events showing begin, peak, and end times with duration, and a flare classification reference. AURORA — The OVATION auroral oval model for both northern and southern hemispheres, recoloured to match the CRT aesthetic. A probability reading for your latitude with a block-character meter bar, current Kp versus required Kp for visible aurora at your location, and observation/forecast timestamps. ALERTS — A scrolling feed of SWPC alerts, warnings, and watches from the last 30 days. Each entry displays the issue timestamp, severity classification, and the substantive content of the bulletin including validity periods, thresholds reached, NOAA scale ratings, and potential impacts on power grids, satellite operations, HF radio, and aurora visibility. All data is sourced from NOAA Space Weather Prediction Center public services. The app polls at appropriate intervals per data type — critical readings like solar wind plasma update every minute, while forecasts and alerts refresh every few minutes. The interface is rendered entirely in monospace typography with phosphor green on black, CRT scanline overlays, and glow effects. Values change colour dynamically based on severity: green for quiet conditions, amber for elevated activity, red for storm thresholds. Multiple colour themes are available. PhosphorSol requires no account, collects no personal data, and contains no advertising. It connects directly to NOAA public APIs.

Screenshots

Eclipse Map4 screens
PhosphorSol4 screens

Verdict

The call

The clearest difference is update cadence: Eclipse Map at every 2 months against PhosphorSol's every 7 months. Eclipse Map also leads on device support (3 vs 1) and iOS requirement (15.0 vs 26.2). PhosphorSol's advantage is price ($0.99 vs $2.99). On ads and in-app purchases 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

Eclipse Map costs $2.99 and PhosphorSol $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Eclipse Map ships an update every 2 months, PhosphorSol every 7 months. The most recent releases landed on November 12, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
Eclipse Map versus PhosphorSol: the parameters behind the verdict, then further details
ParameterEclipse MapPhosphorSol
Price$2.99$0.99 — better
Rating4.9 (7 ratings) — better—
Positive reviews80.0% of reviews—
Number of ratings7 — better—
Update frequencyEvery 2 months — betterEvery 7 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better26.2
Further details — not scored
Size24 MB3 MB
Age rating4+4+
Developer雪平 王Stuart Woolley

In-app purchases

None

Eclipse Map

No in-app purchases

None

PhosphorSol

No in-app purchases

Questions

Is Eclipse Map free?
Eclipse Map costs $2.99, with no in-app purchases.
Is PhosphorSol free?
PhosphorSol costs $0.99, with no in-app purchases.
Do Eclipse Map or PhosphorSol have ads?
Neither Eclipse Map nor PhosphorSol shows ads.
Which is updated more often, Eclipse Map or PhosphorSol?
Eclipse Map ships an update every 2 months, and PhosphorSol every 7 months. Most recently, Eclipse Map was updated on November 12, 2026 and PhosphorSol on October 31, 2026.

Other comparisons