# Pluto Trigger vs Photo Expert

The clearest difference is rating: Photo Expert at 4.5 against Pluto Trigger's 2.9. Photo Expert also leads on update cadence (every 9 days vs every 5 months) and ratings volume (117 vs 23). Pluto Trigger's advantage is in-app purchases (none vs 7) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Photo Expert sells 7 in-app purchases, starting at $3.49 per 7 days. Pluto Trigger asks for nothing beyond the download.

Photo Expert holds the better App Store score, 4.5 against 2.9. That said, the two scores are not equally well evidenced: Photo Expert has 117 ratings behind it against 23, so its average is the more settled of the two. Written reviews complicate that: 33% of Pluto Trigger's written reviews are positive against 5% of Photo Expert's, so the app with the better star average is not the one people write more warmly about.

Pluto Trigger ships an update every 5 months, Photo Expert every 9 days. The most recent releases landed on September 27, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Pluto Trigger | Photo Expert |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.9 (23 ratings)](https://appshunter.io/ios/app/pluto-trigger/id1033735467/reviews) | **[4.5 (117 ratings)](https://appshunter.io/ios/app/photo-expert-sun-moon-tracker/id1635539863/reviews)** |
| Number of ratings | 23 | **117** |
| Positive reviews | **33.3% of reviews** | 5.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 9 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 67 MB | 123 MB |
| Requires iOS | **8.0** | 16.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Baicheng Innovations](https://appshunter.io/developer/1033735466) | [MIOPS TEKNOLOJI ANONIM SIRKETI](https://appshunter.io/developer/1787239735) |

## What reviewers say

### Pluto Trigger

[App page](https://appshunter.io/ios/app/pluto-trigger/id1033735467)

This app controls a Bluetooth hardware device for advanced camera triggering. It offers numerous modes for high-speed photography, timelapse, and smart triggers like sound, light, and motion.

**Highlights:** Remote camera control via Bluetooth, High-speed sound, light, and laser triggers, Smart triggers: motion, smile, vibration, Timelapse and HDR photography, Video recording without time limits, Photography calculation tools (DOF, ND filter)

**Features:** macOS Compatibility

**In-app purchases:** none


### Photo Expert

[App page](https://appshunter.io/ios/app/photo-expert-sun-moon-tracker/id1635539863)

Plan and capture stunning photos with advanced tools for celestial events, sun and moon tracking, and lightning alerts. Visualize celestial body positions on a map and in AR, receive AI-powered shooting suggestions, and access photography calculators.

**Highlights:** Visual event calendar with icons, Interactive map for Sun, Moon, Milky Way, Augmented Reality (AR) celestial tracking, AI-powered shooting suggestions, Real-time lightning map, Photography calculators

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $3.49 | per 7 days |
| Monthly | $4.99 | per month |
| Monthly | $7.99 | per month |
| 6 Months | $12.99 | per 6 months |
| Yearly | $49.99 | per year |
| Yearly | $49.99 | per year |
| One Time | $79.99 | one-time |


## Frequently asked questions

### Is Pluto Trigger free?

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

### Is Photo Expert free?

Photo Expert is free to download, with in-app purchases available.

### Which has better reviews, Pluto Trigger or Photo Expert?

Photo Expert is rated higher. Pluto Trigger averages 2.9 out of 5 from 23 ratings, while Photo Expert averages 4.5 from 117 ratings.

### Do Pluto Trigger or Photo Expert have ads?

Photo Expert shows ads; Pluto Trigger does not.

### Which is updated more often, Pluto Trigger or Photo Expert?

Pluto Trigger ships an update every 5 months, and Photo Expert every 9 days. Most recently, Pluto Trigger was updated on September 27, 2026 and Photo Expert on October 14, 2026.

---

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