Comparison

Pluto Trigger vs Photo Expert

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

Photo Expert

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
Read full description

Photo Expert is your Personal Photography Mentor & Planner Helps you discover what to shoot, when to shoot, where to plan, and how to capture better photos with confidence. Whether you want to capture golden hour landscapes, dramatic city silhouettes, blue hour reflections, Milky Way skies, moonrise scenes, indoor macro details, lightning, or long exposure shots, Photo Expert helps you move from idea to image. WHAT CAN I SHOOT TODAY? Photo Expert looks at your location, weather, light, Sun, Moon, Milky Way, light pollution, and upcoming events to suggest timely photography opportunities. ● Today’s Best Opportunity: See the best photo idea for your current conditions. ● More Opportunities: Explore additional ideas for landscapes, cityscapes, night skies, macro, weather, and more. ● Upcoming Events: Track super moons, meteor showers, eclipses, Milky Way visibility, rocket launches, and lightning opportunities. ● Mentor Guidance: Understand why a shot is worth trying without getting lost in technical data. SIMPLE SHOOTING RECIPES Tap any opportunity to see a clear recipe for the shot. Each recipe can include: ● When to shoot ● Where to look ● How to capture it ● Recommended gear ● Camera settings ● Practical shooting tips ● Personalized guidance based on your camera and lens No long tutorials. No confusing charts. Just clear steps to help you take action. YOUR SHOT PLAN Turn a photo idea into a practical plan before you go out. Photo Expert helps you prepare with: ● Readiness guidance: See if the shot is worth trying today. ● Needed Equipment: Know what to bring before you leave. ● Before You Go checklists: Prepare your camera, lens, tripod, battery, and accessories. ● Field Tips: Avoid common mistakes in the field. ● Save Plan: Save shot ideas, checklists, location context, and reminders. ● Set Reminder: Get notified before the best shooting window. SMART PLANNER MAP For outdoor and celestial photography, open your plan on the map to understand direction, light, and alignment. ● See Sun and Moon directions on the map. ● View golden hour, blue hour, sunrise, sunset, moonrise, and moonset timing. ● Understand the best direction to face for your shot. ● Set a subject on the map to check Sun or Moon alignment. ● Plan skyline, landscape, moonrise, sunset, and Milky Way compositions. SMART CAMERA ASSISTANT Add your camera and lenses to get more personalized guidance. Photo Expert can help you understand how to apply a recipe with your own gear. ● Camera-specific setup suggestions ● Personalized recipe cards ● Step-by-step camera setup guidance ● Simple explanations for why settings work ● Common mistakes to avoid ● Practical variations to try in the field Photo Expert does not just tell you “ISO 100” or “f/8.” It helps you understand why those settings matter and how they help create the final image. POWERFUL PHOTO TOOLS Access expert planning tools whenever you need deeper details. ● Sun Tracker: Sunrise, sunset, golden hour, blue hour, and Sun direction. ● Moon Tracker: Moonrise, moonset, moon phase, moon age, and lunar direction. ● Milky Way Planner: Find when and where the Milky Way will be visible. ● AR Viewer: Visualize Sun, Moon, and Milky Way positions in the real world. ● Light Pollution: Check dark sky conditions for night photography. ● Lightning Map: Track real-time lightning activity. ● Photography Calculators: Star trails, depth of field, ND filters, timelapse, 500 rule, long exposure tools. PREMIUM FEATURES Premium features may include personalized photo opportunities, camera-specific recipes, Smart Camera Assistant, advanced shot planning, saved plans and reminders, Sun, Moon, Milky Way and AR planning tools, Lightning Map, and photography calculators. Download Photo Expert today and turn every photo idea into a clear, confident shooting plan. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.miopsteknoloji.com/privacy-policy/

Screenshots

Pluto Trigger4 screens
Photo Expert4 screens

Verdict

The call

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.

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard8 real differences · 2 level
Pluto Trigger versus Photo Expert: the parameters behind the verdict, then further details
ParameterPluto TriggerPhoto Expert
PriceFreeFree
Rating2.9 (23 ratings)4.5 (117 ratings) — better
Positive reviews33.3% of reviews — better5.0% of reviews
Number of ratings23117 — better
Update frequencyEvery 5 monthsEvery 9 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS8.0 — better16.6
Further details — not scored
Size67 MB123 MB
Age rating4+4+
DeveloperBaicheng InnovationsMIOPS TEKNOLOJI ANONIM SIRKETI

Customer experience

Pluto Trigger

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

Photo Expert

All ratings117 ratings
Positive85.5%
Neutral5.1%
Negative9.4%
Written reviews20 reviews
Positive5.0%
Neutral15.0%
Negative80.0%

In-app purchases

None

Pluto Trigger

No in-app purchases

7 purchases

Photo Expert

Subscriptions6
  • Weekly$3.497 Days
  • Monthly$4.991 Month
  • Monthly$7.991 Month
Show 3 more
  • 6 Months$12.996 Months
  • Yearly$49.991 Year
  • Yearly7 Days trial$49.991 Year
One-time1
  • One Time$79.99

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.

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