Comparison

Pluto Trigger vs ONNOA

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Pluto Trigger

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
Read full description

Pluto Trigger(Bluetooth hardware device, purchase separately) is a high-speed and smart camera trigger. It is controlled by smartphone app over Bluetooth, and features remote shooting, timelapse, HDR, video recording, lightning photography, sound/light/laser high-speed trigger, infrared camera trap, smile/motion/vibration smart trigger, droplet collision photography and more, totally 24 modes. It has IR remote control capability, which let it support a lot more cameras (not just DSLRs). It is also a selfie remote for your iPhone camera(Pluto Camera App). The app also has the capability of calculating the DOF, ND filter shutter speed, 500 Rule and Sunrise/Sunset Time. Compatible Devices: iPhone 4s or later, iPad 3 or later, iPad Mini, iPod Touch 5 or later. Features: Intervalometer - Shutter Release: Single, Focus, Hold, Lock, Bulb, Burst, Timer - Timelapse: Start-Delay, Presets, Bulb-Ramping, End Notification - HDR: up to 19 HDR images - Star-trail: multiple long exposure images - Video: recording video without 30 minutes limit - Timer: Take photos/video during certain period each day, infrastructure construction, plants Pluto Sensors - Laser: Delay of only tens of microseconds, Shutter/Flash method - Sound: 1ms fast response, Explosions, Popping balloons, Shutter/Flash method - Light: High/Low trigger - Lightning: Detect lightning strikes, Adjustable sensitivity - PIR: Wildlife, passerby, wave hand to shoot - Droplet: Water drop collision(External Valve Kit required) - Aux: DIY sensors, e.g. Ultrasound sensor - Fusion: Sensor combination Smart Sensors - Sound Trigger: High-speed, Pre-focus - Vibrate or Shake - Motion Detection: Zoom, Front/back Camera, Sensitivity - Distance: GPS trigger - Voice Command: Say “Pluto” - Smile Detection: Selfie Tools - Depth of Field Calculator: DOF, Hyper Focal Distance - Neutral Density Filter Calculator: Exposure time with ND Filter - Solar Calculator: Sunrise and Sunset, Civil Twilight, Count down - Star-scape Rule: Rule 500 for trail-free star sky photos If you have any question, refer to the User Manual and FAQ in app’s settings Menu. If you want to buy a Pluto Trigger or need more information, visit: plutotrigger.com

About

ONNOA

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
Read full description

SmartTimer is a physical product from ONNOA. This app serves as a remote control for it. Stop making boring time lapses. The SmartTimer is a state-of-the-art remote shutter release and intervalometer. Connect it to your camera and create stunning images and timelapses without any limitations. With advanced features such as linear timelapsing, interval ramping, long exposures, presets and remote triggering, it is suitable for all photographers and astrophotographers who want to get the best out of their camera. Compact, easy to use and with a wide range of settings, our device is suitable for professional photographers and beginners alike. Take your photography to the next level with advanced interval control for professional results. Main features: - Linear time-lapse - Interval ramping - Long exposure bulb mode - Presets - Remote triggering

Screenshots

Pluto Trigger4 screens
ONNOA4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
Pluto Trigger versus ONNOA: the parameters behind the verdict, then further details
ParameterPluto TriggerONNOA
PriceFreeFree
Rating2.9 (23 ratings)4.8 (4 ratings) — better
Positive reviews33.3% of reviews100.0% of reviews — better
Number of ratings23 — better4
Update frequencyEvery 5 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS8.0 — better15.0
Further details — not scored
Size67 MB52 MB
Age rating4+4+
DeveloperBaicheng InnovationsONNOA GbR

Customer experience

Pluto Trigger

All ratings23 ratings
Positive39.1%
Neutral8.7%
Negative52.2%
Written reviews9 reviews
Positive33.3%
Neutral11.1%
Negative55.6%

ONNOA

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Pluto Trigger

No in-app purchases

None

ONNOA

No in-app purchases

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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