# Chronophoto vs Crowd Theory

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.

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.

## The numbers

| Metric | Chronophoto | Crowd Theory |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/chronophoto/id6784248617/reviews)** | [4.9 (115 ratings)](https://appshunter.io/ios/app/crowd-theory/id6796024797/reviews) |
| Number of ratings | 8 | **115** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 11 days** |
| Monetization | Ad-supported | **Free** |
| Best chart rank | — | **#113** |
| Size | 48 MB | 34 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Weston Tuescher](https://appshunter.io/developer/6784248619) | [George Valverde](https://appshunter.io/developer/1554258291) |

## What reviewers say

### Chronophoto

[App page](https://appshunter.io/ios/app/chronophoto/id6784248617)

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.

**Highlights:** Guess historical photo years, Daily challenges, Memory-based rounds, Multiplayer challenges, Survival mode, Classic mode

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Crowd Theory

[App page](https://appshunter.io/ios/app/crowd-theory/id6796024797)

**Currently charting:** #113 Top Free · Trivia (US App Store)

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.

**Highlights:** Daily crowd-guessing questions, Predict crowd percentages, Live crowd number reveals, Demographic breakdowns, Private league leaderboards, Play past questions, Personalized Crowd DNA

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Chronophoto free?

Chronophoto is free to download, with no in-app purchases.

### Is Crowd Theory free?

Crowd Theory is free to download, with no in-app purchases.

### Which has better reviews, Chronophoto or Crowd Theory?

Chronophoto is rated higher. Chronophoto averages 5.0 out of 5 from 8 ratings, while Crowd Theory averages 4.9 from 115 ratings.

### Do Chronophoto or Crowd Theory have ads?

Chronophoto shows ads; Crowd Theory does not.

### Which is updated more often, Chronophoto or Crowd Theory?

Chronophoto ships an update every 2 weeks, and Crowd Theory every 11 days. Most recently, Chronophoto was updated on November 5, 2026 and Crowd Theory on November 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*