Comparison

Light Planner vs Luma Calc

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

Head to head
About

Light Planner

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Do you want to calculate an exposure time based on the shutter speed and ND filters you have on your camera? LightPlanner will do it for you and you won't have any more headaches in the middle of a photo shoot! It is an exposure value configurator that influences how light enters your camera. This app will help you calculate equivalent values based on the law of reciprocity, with which you can configure different settings to get the right exposure. It helps you to organize your next photo escapades and take pictures with different settings. 1. Select the step scale you need. 2. Set the shutter speed. 3. Select from 1 to 3 ND filters. 4. Get the final exposure time directly calculated. 5. Time it!

About

Luma Calc

Features
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LumaCalc is an exposure calculator for photographers and videographers. Change your aperture, ISO, ND filter, or EV compensation โ€” LumaCalc instantly tells you the exact shutter speed needed to maintain a correct exposure. No more mental math on set. โ—† Perfect for - Photographers who attach ND filters and need to recalculate shutter speed every time - Long exposure shooters who want to know the exact duration before pressing the shutter - Anyone who adjusts aperture or ISO and needs a quick exposure correction on the fly - Studio, outdoor, and video shooters who need fast, reliable settings โ—† Features [Exposure Triangle Calculator] Enter your current camera settings (aperture ยท ISO ยท shutter speed), then set your new values. The correct shutter speed is calculated in real time โ€” no confirm button needed, results update instantly as you scroll. [ND Filter Calculator] Supports 23 ND filter densities from ND0 (no filter) to ND512K (512,000ร— light reduction). Instantly see the required shutter speed for any filter you attach. [EV Compensation] Apply exposure compensation from -3.0 to +3.0 EV in 1/3-stop increments to fine-tune your results. [Long Exposure Display] Results beyond 30 seconds are automatically formatted so you always know exactly how long to hold the shutter open. - 1/8000s โ€“ 30s : Standard shutter value (e.g. 1/250) - 30s โ€“ 60s : Seconds (e.g. 45s) - 1 min โ€“ 1 hour : MM:SS format (e.g. 02:30) - Over 1 hour : HH:MM:SS format (e.g. 01:30:00) [Wide Setting Range] - Aperture: f/1.0 โ€“ f/32 (1/3-stop steps, 31 values) - ISO: 50 โ€“ 80,000 (1/3-stop steps, 33 values) - Shutter speed: 1/8000s โ€“ 30s (56 values) โ—† Designed for the Field - Dark theme: easy on the eyes in low-light shooting environments - Wheel picker: drum-roll style selector for fast, precise input - Haptic feedback: feel every click as you scroll through values - Out-of-range alerts: clear Too Fast / Too Slow warnings when results exceed camera limits Stop doing exposure math in your head. Set up your shot faster and more accurately with LumaCalc.

Screenshots

Light Planner4 screens
Luma Calc2 screens

Verdict

The call

The clearest difference is update cadence: Light Planner at daily against Luma Calc's every 7 months. Luma Calc's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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

UpkeepUpdate frequency

Light Planner ships an update daily, Luma Calc every 7 months. The most recent releases landed on December 4, 2025 and September 21, 2026 respectively.

Scorecard3 real differences ยท 3 level
Light Planner versus Luma Calc: the parameters behind the verdict, then further details
ParameterLight PlannerLuma Calc
PriceFreeFree
Update frequencyDaily โ€” betterEvery 7 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone, iPad, iPod โ€” better
Requires iOS17.013.0 โ€” better
Further details โ€” not scored
Size5 MB19 MB
Age rating4+4+
DeveloperCarlos Morgado Alarconyeongsu son

In-app purchases

None

Light Planner

No in-app purchases

None

Luma Calc

No in-app purchases

Questions

Is Light Planner free?
Light Planner is free to download, with no in-app purchases.
Is Luma Calc free?
Luma Calc is free to download, with no in-app purchases.
Do Light Planner or Luma Calc have ads?
Neither Light Planner nor Luma Calc shows ads.
Which is updated more often, Light Planner or Luma Calc?
Light Planner ships an update daily, and Luma Calc every 7 months. Most recently, Light Planner was updated on December 4, 2025 and Luma Calc on September 21, 2026.

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