NK News vs PolySim
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NK News
Stay informed with breaking news, in-depth analysis, and podcasts focused on North Korea. Access exclusive content, search archives, and save articles for later reading. Listen to the NK News Podcast directly within the app.
- Breaking North Korea news
- Opinion and analysis
- NK News Podcast access
- Full-text search archive
- Save stories for later
- Topic-based alerts
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Get breaking North Korea news, opinion, analysis and podcast access while you're on the move. We've completely redesigned and rebuilt the NK News mobile app to let you quickly pick topics of interest, get alerts on news you care about, and listen to the NK News podcast without having to download anything else. • Full access to all NK News and NK PRO content that is included in your subscription • Listen to all episodes of the popular NK News Podcast without leaving the app • Full-text search to enable easy research on past stories across the entire NK News and NK PRO archive • Save stories to read them later and access all bookmarks in one place NK News is an independent, privately owned specialist information source that focuses on North Korea. The site intends to bring authoritative news, opinion & analysis, research tools, data and subject specialists together in one convenient place. We've been on this beat since 2010 and work with journalists around the world to keep you on top of everything North Korea. Mobile App Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ General Terms & Conditions: https://www.nknews.org/terms-and-conditions-nk-news-pro/ Privacy Policy: https://www.nknews.org/privacy-policy/
PolySim
Practice trading on prediction markets without any financial risk. This simulator allows you to test your instincts on various event markets using virtual money. Learn about market dynamics and improve your trading strategies in a clean, fast interface.
- Virtual cash balance
- Trade Yes/No outcomes
- Real-time profit/loss tracking
- Build multi-category positions
- Monitor portfolio performance
- Explore diverse event categories
- Fast, clean interface
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PolySim is a paper trading simulator inspired by prediction markets. It reads PolyMarket data live so you can practice trading elections, crypto, sports, geopolitics, finance, weather, technology, and breaking world events using simulated money only. No deposits. No withdrawals. No risk. No signups. No subscriptions. No ads. If you have ever wanted to test your instincts on event markets before risking real money, PolySim gives you a clean and fast way to learn simply. FEATURES • Start with a virtual cash balance • Trade Yes or No outcomes using live market probabilities • Track profit and loss in real time • Build positions across multiple categories • Monitor portfolio performance • Explore politics, crypto, sports, economy, tech, weather and more • Fast clean interface designed for active traders • Practice strategies with no financial risk WHY USERS LOVE POLYSIM • Learn how event markets work • Test conviction before real trading • Improve timing and risk management • Follow major global stories in a more engaging way • Compete against yourself and grow your virtual portfolio CATEGORIES INCLUDE • Politics • Sports • Crypto • Finance • Geopolitics • Economy • Technology • Culture • Weather IMPORTANT PolySim is a simulator for educational and entertainment purposes only. No real money trading takes place. PolySim is not a gambling app. PolySim is not affiliated with Polymarket. Market information may be sourced from publicly available data. Download PolySim and see if you can grow your virtual portfolio.
Screenshots
Verdict
The clearest difference is price: NK News at Free against PolySim's $0.99. NK News also leads on rating (4.7 vs 1.0) and device support (3 vs 1). PolySim's advantage is in-app purchases (none vs 2) and update cadence (every 3 days vs every 5 weeks). On ads 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
NK News is free to download; PolySim costs $0.99 up front. NK News sells 2 in-app purchases, starting at $29.99 per month. PolySim asks for nothing beyond the download.
NK News holds the better App Store score, 4.7 against 1.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively.
NK News ships an update every 5 weeks, PolySim every 3 days. The most recent releases landed on October 14, 2026 and October 5, 2026 respectively.
| Parameter | NK News | PolySim |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.7 (3 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 5 weeks | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | Free — better |
| Best chart rank | — | #110 — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 53 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | NK Consulting Inc. | Matthew Moffat |
Customer experience
NK News
PolySim
In-app purchases
NK News
- Monthly Subscription$29.991 Month
- Annual Subscription$299.991 Year
PolySim
No in-app purchases









