Comparison

JNation vs Sun Map Clock

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

Head to head
About

JNation

Features
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Welcome to the official app for JNation, an inclusive developer conference that brings together the best of Java and JavaScript, the two most widely-used programming languages in the world. Install JNation app to: - View the conference schedule - View talk details and its speakers - Be alerted when your favorite talk is about to start - Create your own schedule using favorite sessions - Rate the sessions and provide feedback once the session finishes - View the venue map - Exchange contacts with other attendees - Access livestreams of sessions directly from the app

About

Sun Map Clock

Features
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Sun Map Clock is a professional simulation tool designed to track the sun's path and shadow directions at any given location and time. By simply moving the intuitive time and date sliders, you can visualize exactly how the sun will interact with a specific area throughout the year. Perfect for construction managers, real estate agents, solar panel installers, and surveyors who need accurate, reliable site data without visiting the location. KEY FEATURES - Shadow Length & Width Simulation: Enter the height and width of an object at the pin and the shadow falls on the map as a band with its real projected length (height / tan of sun altitude) and its real width. Heights run 0.5-300 m, covering high-rise towers, and widths 0.5-500 m, covering block-scale buildings. Steps of 0.1 m let you dial in exact figures for daylight explanations, right-to-light and overshadowing studies, and row-to-row spacing of solar panels. - Interactive Sun Map: Visualize the sun's direction, the full day's path, and shadow angles on the map. - Time Travel Sliders: Easily slide through hours, days, and seasons to see how shadows change. Sliders show clear marks for sunrise, sunset, and solstices. When you reach the end of the slider, it smoothly moves to the next day or year. - Safety & Climate Data: Check temperature, UV index, and heat alerts for safe site management and hazard prediction (KY activities). It also shows past weather records and 5-year average data (average temperature and sunny day rate). - Solar Panel Optimization: Automatically calculate the optimal tilt and azimuth for solar panels at any location. - Multi-Site Management & CSV Export: Save multiple project locations and export comprehensive sun and climate data to CSV for your reports. - Quick Share: Take screenshots of the map and data panel to share actionable instructions instantly with your team. - Day/Night Terminator: Visualize the global day and night boundary moving in real-time as you adjust the time. - Shadow Length Simulation: Set the height of an object at the pin with a slider and the shadow line stretches to its real projected length (height / tan of sun altitude). Use it for daylight explanations or for the row-to-row spacing of solar panels. Line width is adjustable too. - Alerts per Site: Sunrise, sunset, golden hour and "the sun gets low (long shadows)", each with its own lead time, set per saved site. The sun's position is computed on the device, so alerts fire even out of signal range. - Works Offline: Weather fetched while online is stored on the device and shown where there is no signal, together with the time it was fetched โ€” old values are never taken for current ones. Offline storage can be switched off, shows real disk usage and can be cleared. - Units Set Separately: Temperature (ยฐC / ยฐF), length (m / ft) and wind speed (m/s / mph) are chosen independently, because the combination differs by country. Targeted for B2B professionals, this app bypasses complex astronomical jargon and focuses directly on actionable data for your field work. Free trial: every feature is free for 30 days after you install the app. To keep using them after that, an auto-renewing monthly or yearly subscription is required. *** Subscription Terms: A purchase will be applied to your iTunes account on confirmation. Subscriptions will automatically renew unless canceled within 24-hours before the end of the current period. You can cancel anytime with your iTunes account settings. Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://qconp.com/#section-privacy-en

Screenshots

JNation4 screens
Sun Map Clock4 screens

Verdict

The call

The clearest difference is in-app purchases: JNation at none against Sun Map Clock's 2. Sun Map Clock's advantage is update cadence (every 2 weeks vs every 7 months). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Sun Map Clock sells 2 in-app purchases, starting at $15.00 per month. JNation asks for nothing beyond the download.

UpkeepUpdate frequency

JNation ships an update every 7 months, Sun Map Clock every 2 weeks. The most recent releases landed on October 11, 2026 and September 29, 2026 respectively.

Scorecard2 real differences ยท 4 level
JNation versus Sun Map Clock: the parameters behind the verdict, then further details
ParameterJNationSun Map Clock
PriceFreeFree
Update frequencyEvery 7 monthsEvery 2 weeks โ€” better
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPodiPhone, iPad, iPod โ€” better
Requires iOS15.615.0 โ€” better
Further details โ€” not scored
Size58 MB64 MB
Age rating4+4+
DeveloperPresent TechnologiesQAEE CONPUUTENG

In-app purchases

None

JNation

No in-app purchases

2 purchases

Sun Map Clock

Subscriptions2
  • Monthly Subscription$15.001 Month
  • Yearly Subscription$150.001 Year

Questions

Is JNation free?
JNation is free to download, with no in-app purchases.
Is Sun Map Clock free?
Sun Map Clock is free to download, with in-app purchases available.
Do JNation or Sun Map Clock have ads?
Neither JNation nor Sun Map Clock shows ads.
Which is updated more often, JNation or Sun Map Clock?
JNation ships an update every 7 months, and Sun Map Clock every 2 weeks. Most recently, JNation was updated on October 11, 2026 and Sun Map Clock on September 29, 2026.

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