Retroaction vs Know Nothin'!
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Retroaction
This app helps members of sports organizations track their attendance for various activities. Users can view team details and communicate with others through built-in chat rooms. It's designed for easy group management and communication within sports associations.
- Track attendance for activities
- View group or team details
- Communicate via chat rooms
- Manage sports association membership
- Check presence or absence
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The Retroaction application allows members of a sports association or organization to indicate their presence or absence at different activities. They can also consult the details of their group or team as well as communicate using the chat rooms.
Know Nothin'!
Engage in friendly hockey prediction challenges with friends for both regular season and playoffs. Create or join leagues, make series and game score picks, and track your progress on live leaderboards. Features include team building, trivia, and real-time game updates.
- Playoff and regular season predictions
- Salary-cap roster building
- Custom and automated trivia
- Live standings and point tracking
- League chat
- Home screen widgets
- Live Activities for game tracking
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Challenge your buddies on the playoffs and regular season, even if you know NOTHING! TyConnaisRien is friendly hockey predictions: create or join a league, pick series and game scores, and climb the standings. WHAT YOU CAN DO • Predictions for playoffs and regular season (NHL and PWHL/LPHF) • My Team: build your salary-cap roster (3 forwards, 2 defense, 1 goalie) • Custom or automated trivia questions • Live standings and point tracking NEW IN 2.0 • Regular season: predict every game, not just the playoffs • League chat: talk with your league members in the app • Widgets: to-do picks, tonight’s games, and standings on your Home Screen • Live Activities: follow games live from your Lock Screen • Dark mode: easier on the eyes, day and night • English: the app is now available in French and English • Granular notifications: choose exactly what you want to receive • Redesigned UI: smoother on iPhone and optimized for iPad Perfect for friends, family, or coworkers who want to have fun without being hockey experts. Download, create your league, and prove you know something… or not!
Screenshots
Verdict
The clearest difference is review sentiment: Know Nothin'! at 100% against Retroaction's 21%. Know Nothin'! also leads on ads (none vs shown) and monetization model (free vs ad-supported). On price, in-app purchases, device support and iOS requirement 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Retroaction ships an update every 2 weeks, Know Nothin'! every 6 days. Both last shipped on November 3, 2026.
| Parameter | Retroaction | Know Nothin'! |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 21.4% of reviews | 100.0% of reviews — better |
| Update frequency | Every 2 weeks | Every 6 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.4 | 15.1 — better |
| Further details — not scored | ||
| Size | 57 MB | 73 MB |
| Age rating | 4+ | 4+ |
| Developer | Retroaction | David Maillard |
Customer experience
Retroaction
Know Nothin'!
In-app purchases
Retroaction
No in-app purchases
Know Nothin'!
No in-app purchases
