# Pluto Trigger vs ONNOA

The clearest difference is review sentiment: ONNOA at 100% against Pluto Trigger's 33%. ONNOA also leads on rating (4.8 vs 2.9) and update cadence (every 4 weeks vs every 5 months). Pluto Trigger's advantage is ratings volume (23 vs 4) and iOS requirement (8.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ONNOA holds the better App Store score, 4.8 against 2.9. That said, the two scores are not equally well evidenced: Pluto Trigger has 23 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 33% of Pluto Trigger's written reviews are positive against 100% of ONNOA's.

Pluto Trigger ships an update every 5 months, ONNOA every 4 weeks. The most recent releases landed on September 27, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Pluto Trigger | ONNOA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.9 (23 ratings)](https://appshunter.io/ios/app/pluto-trigger/id1033735467/reviews) | **[4.8 (4 ratings)](https://appshunter.io/ios/app/onnoa-smarttimer/id6470661710/reviews)** |
| Number of ratings | **23** | 4 |
| Positive reviews | 33.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 weeks** |
| Monetization | Free | Free |
| Size | 67 MB | 52 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Baicheng Innovations](https://appshunter.io/developer/1033735466) | [ONNOA GbR](https://appshunter.io/developer/1713950654) |

## 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


### ONNOA

[App page](https://appshunter.io/ios/app/onnoa-smarttimer/id6470661710)

This app acts as a remote control for a physical camera accessory, enabling advanced time-lapse photography. It offers features like linear time-lapsing, interval ramping, and long exposure control for professional results.

**Highlights:** Remote triggering, Linear time-lapse, Interval ramping, Long exposure bulb mode, Presets

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Pluto Trigger free?

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

### Is ONNOA free?

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

### Which has better reviews, Pluto Trigger or ONNOA?

ONNOA is rated higher. Pluto Trigger averages 2.9 out of 5 from 23 ratings, while ONNOA averages 4.8 from 4 ratings.

### Do Pluto Trigger or ONNOA have ads?

Neither Pluto Trigger nor ONNOA shows ads.

### Which is updated more often, Pluto Trigger or ONNOA?

Pluto Trigger ships an update every 5 months, and ONNOA every 4 weeks. Most recently, Pluto Trigger was updated on September 27, 2026 and ONNOA on October 1, 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.*