Comparison

James Owl Calc vs EV+

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

Head to head
About

James Owl Calc

This tool helps landscape photographers calculate precise camera settings for long exposure shots. It recommends ND filter combinations, aperture, and ISO based on your current settings and desired effect. Features include tutorials and camera-specific adjustments.

Highlights
  • Precise exposure calculations for ND filters
  • Reverse calculation mode
  • Smart adaptive technology for light changes
  • Built-in countdown timer with audio alerts
  • Camera-specific settings
  • Long exposure technique tutorials
Features
Read full description

James' Long Exposure Calculator is the ultimate companion for landscape photographers seeking to master the art of long exposure photography. Designed by professional photographer James Yu, this powerful tool eliminates guesswork and transforms your creative vision into precise camera settings. Whether you're capturing silky smooth waterfalls, dreamy misty seascapes, or ethereal cloud streaks, this app delivers professional-grade calculations tailored to your specific equipment. Simply input your current settings and desired effect, and the advanced algorithm will recommend the perfect ND filter combination, aperture, and ISO values to achieve stunning results every time. Key features include: Precise exposure calculations for any ND filter strength Reverse calculation mode - start with your desired exposure time Smart adaptive technology that accounts for changing light conditions Built-in countdown timer with audio alerts Camera-specific settings for maximum accuracy Detailed tutorials for various long exposure techniques Clean, intuitive interface designed for field use The app supports all major camera brands and ND filter types, from ND8 to ND64000. Take your long exposure photography to the next level with James' professional insights and techniques refined through years of experience. Whether you're a beginner exploring long exposure or a seasoned professional seeking efficiency, James' Long Exposure Calculator provides the precision and guidance you need to create breathtaking images that stand out from the crowd.

About

EV+

A simple light meter for photographers to measure EV and calculate necessary camera settings like ISO, shutter speed, and aperture. It provides essential exposure information for better photography.

Highlights
  • Measure EV
  • Calculate ISO
  • Calculate Shutter Speed
  • Calculate Aperture
  • Minimalist interface
Features
Read full description

Minimal light meter for photographers. Measure EV and calculate ISO, shutter, and aperture.

Screenshots

James Owl Calc4 screens
EV+2 screens

Verdict

The call

The clearest difference is ratings volume: James Owl Calc at 4 against EV+'s 1. EV+'s advantage is iOS requirement (13.0 vs 16.0). On price, rating, ads and in-app purchases 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

On the App Store both sit at effectively the same score — 5.0 for James Owl Calc against 5.0 for EV+. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

Scorecard2 real differences · 8 level
James Owl Calc versus EV+: the parameters behind the verdict, then further details
ParameterJames Owl CalcEV+
PriceFreeFree
Rating5.0 (4 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings4 — better1
Update frequencyWeekly—
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS16.013.0 — better
Further details — not scored
Size32 MB16 MB
Age rating4+4+
DeveloperJames Zhen YuBen Nguyen

Customer experience

James Owl Calc

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

EV+

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

James Owl Calc

No in-app purchases

None

EV+

No in-app purchases

Questions

Is James Owl Calc free?
James Owl Calc is free to download, with no in-app purchases.
Is EV+ free?
EV+ is free to download, with no in-app purchases.
Which has better reviews, James Owl Calc or EV+?
James Owl Calc and EV+ are both rated 5.0 out of 5 on the App Store, from 4 and 1 ratings respectively.
Do James Owl Calc or EV+ have ads?
Neither James Owl Calc nor EV+ shows ads.

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