Chronophoto vs Crowd Theory
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Chronophoto
Guess the year a historical photograph was taken. Compete in daily challenges, memory rounds, or with friends. It's a quick and addictive game for the curious.
- Guess historical photo years
- Daily challenges
- Memory-based rounds
- Multiplayer challenges
- Survival mode
- Classic mode
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A real photo from history. You guess the year. Five rounds — and somehow it's the most addicting two minutes in your day. Chronophoto shows you real historical photographs, 1900 to today, and asks one simple question: what year is this? Score points for getting close, more for getting closer. No expertise required, just curiosity. If you finish today's word game in thirty seconds and still want something to do, or you like guessing games and wish one were just about time, this is that. Five ways to play: • DAILY - one photo, the same for everyone, every day. Build a streak. • FLASH - five seconds to look, then it's gone. Guess from memory. • PARTY - share a code, challenge your friends on the same photos. • SURVIVAL - how many rounds can you survive before your health runs out? • CLASSIC - five photos, one score, jump in anytime. Chronophoto started as a browser game and quietly grew to over a million players, almost entirely by word of mouth. If you played it back then, this is that game, rebuilt from scratch for iPhone. If you didn't, you're just in time. Free to play. No paywall. No account needed, just open it and guess. How close can you get?
Crowd Theory
Guess how the crowd will answer daily questions and compare your predictions to the global consensus. Analyze demographic splits and compete with friends on private leaderboards. Play past questions to improve your score and discover your Crowd DNA.
- Daily crowd-guessing questions
- Predict crowd percentages
- Live crowd number reveals
- Demographic breakdowns
- Private league leaderboards
- Play past questions
- Personalized Crowd DNA
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How well do you know the crowd? Every day, one question. Answer it honestly for yourself - then the real game: predict what percent of everyone else said the same. Lock your guess, no takebacks, and watch the reveal - the crowd's true number, live, and your score is how far away you are. 2% away? You can read the room. 45% off? Maybe you've been living under a rock. THE DAILY RITUAL One new question every day at 4pm ET - the whole world plays the same 24-hour window Questions you can't help guessing: What percent of people think they're better-than-average drivers? What percent refrigerate ketchup? What percent fart in front of their spouse? What percent say please and thank you to AI? Live crowd numbers that move as votes come in SEE WHO SAID WHAT Demographic breakdowns: how men, women, and every generation answered Daily takeaways on where the crowd split Every question ends in a conversation with the whole crowd START A LEAGUE Your own private leaderboard with your group chat, your family, your office One link invites them: friends who have the app land straight in your league Finally settle who actually knows how people think CLIMB THE BOARDS Today, 7-day, 30-day, and all-time leaderboards with your real rank Streaks, badges, and your Crowd DNA - discover how much you're actually like everyone else in Your Story PLAY THE BACK CATALOG Missed a day? Every past question is still playable. The crowd is locked - your read isn't. Anonymous by design - no email to play, no ads, no trackers. We will never sell your personal information or let anyone target you based on what you answered.
Screenshots
Verdict
The clearest difference is ads: Crowd Theory at none against Chronophoto's shown. Crowd Theory also leads on ratings volume (115 vs 8) and monetization model (free vs ad-supported). On price, rating, review sentiment and update cadence 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.
On the App Store both sit at effectively the same score — 5.0 for Chronophoto against 4.9 for Crowd Theory. That said, the two scores are not equally well evidenced: Crowd Theory has 115 ratings behind it against 8, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
Chronophoto ships an update every 2 weeks, Crowd Theory every 11 days. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.
| Parameter | Chronophoto | Crowd Theory |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (8 ratings) — better | 4.9 (115 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 8 | 115 — better |
| Update frequency | Every 2 weeks | Every 11 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Best chart rank | — | #103 — better |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 48 MB | 34 MB |
| Age rating | 12+ | 12+ |
| Developer | Weston Tuescher | George Valverde |
Customer experience
Chronophoto
Crowd Theory
In-app purchases
Chronophoto
No in-app purchases
Crowd Theory
No in-app purchases









