feeder.co vs PolySim
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
feeder.co
This app aggregates content from any online source into a single, customizable feed. It offers notifications for new content, filtering options to find specific topics, and tools to organize and share articles. Users can personalize their reading experience with different themes and modes.
- Customizable news feeds
- Push notifications for new content
- Keyword filtering and exclusion
- Organize, label, and share posts
- Light and dark themes
- Compact and simple reading modes
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Keep up with everything you care about in one place with Feeder (www.feeder.co). Feeder is the news manager that tracks any online source you choose and bundles it into an easy-to-digest reading experience. Add content sources to get your very-own customized news feed. Through advanced RSS integrations, we connect to almost any source on the web – blogs, news, weather, government databases, job boards, Twitter, newsletters and more. Just pick and mix. We check for updates faster than you ever could manually. With notifications, we let you know that there's new content you care about available, allowing you to know what happens, right when it happens. Add filters to your feeds to find keywords or specific topics in posts. You can also exclude certain keywords to remove noise. Filters combined with notifications allow you to get notified for even more specific content. Sort, label and share. When you find something important, share it with your friends or colleagues. We have all the tools to optimize your information intake and spread it to relevant parties. Whether you use Feeder for large consumption or casual browsing. Read content in the way that suits you. Light theme for the day, dark theme during the night. Use compact mode to maximize content or simple mode to remove all clutter. Feature list: - Browse your feeds in a great experience - Star posts and mark them as unread with simple swipe gestures - View your unread posts in one consolidated list - Receive push notifications when a new post appears, globally or per feed - With the intuitive scroll experience you can browse your posts in an beautifully - Edit feeds and folders - Share posts - Integrates seamlessly with your Feeder account, web extensions, and the web service - Podcast player - Available in 30+ languages FEEDER PRO Collect and organize content like a Pro Unlock a range of essential features. Filter content. Create rules to automatically order incoming posts and do it all with rocket-speed. - 1 minute updates - Ad-free - Filters, rules and collection FEEDER BUSINESS Become a smarter team with Feeder Business Keep up with everything that matters to your business in one place. Feeder Business can be tailored to your specific needs. Customise what sources your team follows. Automate the manual process of checking for updates. Our crawlers are awake and working 24/7. - Everything in Feeder Pro - Invite your team - Shared feeds and folders You can choose to upgrade your account whenever you want. Payment will be charged to your iTunes account, and your account will be charged for renewal 24 hours prior to the end of the current period. Auto-renewal may be turned off at any time by going to your settings in the iTunes Store after purchase.
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: feeder.co at Free against PolySim's $0.99. feeder.co also leads on rating (4.7 vs 1.0) and ratings volume (1K vs 1). PolySim's advantage is in-app purchases (none vs 6) and update cadence (every 3 days vs every 2 months). 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
feeder.co is free to download; PolySim costs $0.99 up front. feeder.co sells 6 in-app purchases, starting at $5.99 per month. PolySim asks for nothing beyond the download.
feeder.co holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: feeder.co has 1K ratings behind it against 1, so its average is the more settled of the two.
feeder.co ships an update every 2 months, PolySim every 3 days. The most recent releases landed on October 9, 2026 and October 5, 2026 respectively.
| Parameter | feeder.co | PolySim |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.7 (1K ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 41.5% of reviews | — |
| Number of ratings | 1K — better | 1 |
| Update frequency | Every 2 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15 — better | 17.6 |
| Further details — not scored | ||
| Size | 55 MB | 2 MB |
| Age rating | 17+ | 4+ |
| Developer | Really Simple AB | Matthew Moffat |
Customer experience
feeder.co
PolySim
Bugs and requests
feeder.co
Reported bugs
5 issues- Feeds stop syncing
- App crashes when reaching low unread count
- Issues with adding/deleting feeds
- Login/sign-up problems
- UI bugs and glitches
Requested features
5 requests- Add read-aloud function
- Improve article reading experience
- Allow sign-in/import from Feedly
- Add more customization options
- Improve feed management and organization
PolySim
Not enough reviews yet to summarise bugs or requests.
In-app purchases
feeder.co
- Feeder Pro$5.991 Month
- Feeder Plus (Monthly)$9.991 Month
- Feeder Professional (monthly)$14.991 Month
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- Feeder Pro$59.991 Year
- Feeder Plus (yearly)$95.901 Year
- Feeder Professional (Yearly)$179.991 Year
PolySim
No in-app purchases









