# PhotoTropedelic vs Zone Tool

The clearest difference is rating: PhotoTropedelic at 3.7 against Zone Tool's 2.8. PhotoTropedelic also leads on update cadence (every 7 months vs every 38 months) and ratings volume (25 vs 6). Zone Tool's advantage is in-app purchases (none vs 1) and review sentiment (100% vs 76%). On ads and device support there is nothing between them.

PhotoTropedelic costs $2.99 and Zone Tool $0.99 up front. PhotoTropedelic sells 1 one-off in-app purchase. Zone Tool asks for nothing beyond the download.

PhotoTropedelic holds the better App Store score, 3.7 against 2.8. Both are backed by a comparable volume of ratings — 25 and 6 respectively. Written reviews complicate that: 76% of PhotoTropedelic's written reviews are positive against 100% of Zone Tool's, so the app with the better star average is not the one people write more warmly about.

PhotoTropedelic ships an update every 7 months, Zone Tool every 38 months. Both last shipped on October 27, 2026.

## The numbers

| Metric | PhotoTropedelic | Zone Tool |
| --- | --- | --- |
| Price | $2.99 | **$0.99** |
| Rating | **[3.7 (25 ratings)](https://appshunter.io/ios/app/phototropedelic/id350292007/reviews)** | [2.8 (6 ratings)](https://appshunter.io/ios/app/zone-tool/id1489637620/reviews) |
| Number of ratings | **25** | 6 |
| Positive reviews | 76.4% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 38 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 35 MB | 0 MB |
| Requires iOS | **9.0** | 12.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Larry Weinberg](https://appshunter.io/developer/350292010) | [Jouni Erola](https://appshunter.io/developer/295758397) |

## What reviewers say

### PhotoTropedelic

[App page](https://appshunter.io/ios/app/phototropedelic/id350292007)

Transform your photos into unique Pop Art masterpieces. This app analyzes your images and applies the vibrant colors, textures, and symbols of 1960s Pop Art to create bold, distinctive artwork.

**Highlights:** Advanced image processing, Pop Art style transformation, Color and texture analysis, Unique art generation, 60s Pop Art inspiration

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Custom Color Palette Editing | $0.99 | one-time |

**What reviewers like**

- 🎨 Unique psychedelic/Peter Max-style artistic effects
- 👍 User-friendly interface and easy to use
- 🎛️ Highly customizable settings and controls
- 🚀 Fast processing speed on iPad
- 📄 Vector PDF export capability for high-quality prints

**What reviewers complain about**

- 🐛 Crashes frequently on iOS 11+
- 🐛 Won't load photos or access photo library
- ❌ No customer support available
- ⚠️ Inconsistent results across different photos
- 🔧 Custom color settings don't persist between sessions

**Reported bugs**

- App crashes on iOS 11 and later versions
- Photos won't load from library
- White screen when accessing Albums or Photos
- App won't open or shows blank screen
- Custom color settings reset or don't save properly

**Requested features**

- Update for iOS 11+ compatibility
- Ability to select/mask specific image areas
- Control over ray emanation point
- Repositionable stars and circles
- Blending function to soften psychedelic effect


### Zone Tool

[App page](https://appshunter.io/ios/app/zone-tool/id1489637620)

Calculate photographic exposure and development adjustments using zone system theory. Measure shadows and highlights, input film ISO and desired shutter speed to determine aperture and development time modifications.

**Highlights:** Zone system exposure calculation, Shadow and highlight measurement, Film ISO input, Shutter speed adjustment, Development time calculation, Aperture determination

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

**In-app purchases:** none


## Frequently asked questions

### Is PhotoTropedelic free?

PhotoTropedelic costs $2.99, and also offers in-app purchases.

### Is Zone Tool free?

Zone Tool costs $0.99, with no in-app purchases.

### Which has better reviews, PhotoTropedelic or Zone Tool?

PhotoTropedelic is rated higher. PhotoTropedelic averages 3.7 out of 5 from 25 ratings, while Zone Tool averages 2.8 from 6 ratings.

### Do PhotoTropedelic or Zone Tool have ads?

Neither PhotoTropedelic nor Zone Tool shows ads.

### Which is updated more often, PhotoTropedelic or Zone Tool?

PhotoTropedelic ships an update every 7 months, and Zone Tool every 38 months. Most recently, PhotoTropedelic was updated on October 27, 2026 and Zone Tool on October 27, 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.*