Comparison

RapidExposure vs Community

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

Head to head
About

RapidExposure

This app transforms your iPhone into a professional exposure meter. It continuously measures light and displays ISO, F-stop, and shutter speed values without needing to take a photo. You can adjust these settings and lock the exposure to save a reference image with the calculated values.

Highlights
  • Real-time exposure measurement
  • Adjustable ISO, F-stop, and shutter speed
  • Exposure lock and reference value saving
  • History of saved exposure values
  • Tap-to-adjust exposure on preview
  • Detailed 1/3 step display mode
Features
Read full description

This app will turn iPhone into exposure meter for cameras. It can continuously measure exposure value and indicate the information without releasing the shutter. It allows you to recalculate and indicate the shutter speed together with other ISO values and F values even during the measurement. The measurement is interrupted by the save button, and then write a row exposure value which iPhone automatically set into the image that iPhone had been taking, The image with the row exposure value is saved as a sample and displayed.γ€€It also displays the exposure value that the user has set. You can see the saved images on a list of images in the history window. You can adjust and rock the exposure on the tapped point of the preview screen. The exposure rock can be cancelled by the 'Auto' button. The shutter sound can be reduced by the volume button. However, it becomes the normal volume if it is set mute. At first the app puts high priority on ISO and F in exposure calculation. Under the exposure measurement, it indicates variable aperture stops (F-number) at a fixed shutter speed when you manually change the shutter speeds. Or, when you manually change the aperture stops (F-numbers), it indicates variable shutter speeds at a fixed aperture stop. If you change the ISO value, shutter speed or F-value changes depending on the mode at the time. The range of ISO vales, F values and shutter speeds are as follows. (In the new version, detail display mode is added in which F,ISO,SS values are changed by 1/3 step) ISO vales: "25","50","100","200","400","800","1600","3200","6400","12800","25600","51200" F values: "F0.7", "F1", "F1.4", "F2", "F2.8","F4", "F5.6", "F8", "F11", "F16","F22", "F32" shutter speeds: "60","30","15","8","4","2","1","1/2","1/4","1/8","1/15","1/30","1/60","1/125","1/250","1/500","1/1000","1/2000","1/4000","1/8000" ******** How to use: (1) Immediately after start-up, this application starts the exposure calculation automatically and it displays the values of ISO, F and SS in the wheel. (2) Exposure is recalculated in accordance with the subject that is reflected in the camera, the value of the SS will change accordingly. When you point the camera toward bright, the value of SS is reduced. Turning the camera to darker, the value of the SS will increase. (3) If you change the value of the ISO in the wheel, the value of the SS will change accordingly. Changing the value of F in the same manner, the value of the SS will change. Further, changing the value of the SS, the value of F will change. (4) If you tap the "Save" button, the exposure value displayed at that time is locked and a photo is taken. A reference exposure value that iPhone camera set to itself is written in the photo. (The reference value is different from that displayed in the wheel. It is not possible to set exposure value in the wheel to iPhone camera itself.) (5) If you tap the "measure" button, it restarts the exposure calculation and re-displays the values ​​of ISO, F and SS. (6) If you tap the "History" button, the History window appears and the contents saved are listed. They are save date and time , photos and the exposure values you had set by the wheel when you save. (7) You can enlarge the photo by tapping it. (8) It changes to delete mode when you tap the "trash", delete mark appears in the photo that you tap. If you tap "Done", photos marked for deletion will be deleted. (9) **** This app uses OSS:AQGridView(Copyright(c) 2010-2011, Kobo Inc.) NOTE:γ€€However this app calculates ISO vale, F value and shutter speed based on the photos taken with the built-in camera, we are not able to guarantee the accuracy of these values.

About

Community

Discover and plan visits to photo exhibitions with a visual and social experience. Find new exhibitions, share impressions, attend events with friends, and build your personal archive. Stay connected to art and fellow art enthusiasts.

Highlights
  • Customized exhibition search
  • Personalized recommendations
  • Interactive exhibition map
  • Social sharing of impressions
  • Event attendance with friends
  • Points collection system
  • Personal exhibition archive
Features
Read full description

Community is an app designed for discovering, planning, and visiting photo exhibitions β€” built around both a visual and social experience. It combines a convenient, customized search, personal recommendations, an interactive map of current exhibitions, and social features. You can explore new exhibitions and galleries, share your impressions, support the promotion of exhibitions, attend events with friends, collect points, build your own archive, and much more. Every tool is thoughtfully crafted to save you time and make your exhibition visits as smooth and enjoyable as possible. Community helps you stay closer to art β€” and to the people inspired by it. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

RapidExposure4 screens
Community4 screens

Verdict

The call

The clearest difference is price: Community at Free against RapidExposure's $0.99. RapidExposure's advantage is iOS requirement (12.0 vs 17). On review sentiment, update cadence, ads and in-app purchases there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Community is free to download; RapidExposure costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

RapidExposure ships an update every 2 months, Community monthly. The most recent releases landed on October 2, 2026 and October 3, 2026 respectively.

Scorecard3 real differences Β· 5 level
RapidExposure versus Community: the parameters behind the verdict, then further details
ParameterRapidExposureCommunity
Price$0.99Free β€” better
Positive reviews37.5% of reviews β€” better33.3% of reviews
Update frequencyEvery 2 monthsMonthly β€” better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree with in-app purchases β€” better
DevicesiPhone, iPod β€” betteriPhone
Requires iOS12.0 β€” better17
Further details β€” not scored
Size9 MB97 MB
Age rating4+17+
DeveloperHIROFUMI MARUODmitry Rambovskiy

Customer experience

RapidExposure

Written reviews8 reviews
Positive37.5%
Neutral37.5%
Negative25.0%

Community

Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

In-app purchases

None

RapidExposure

No in-app purchases

None

Community

No in-app purchases

Questions

Is RapidExposure free?
RapidExposure costs $0.99, with no in-app purchases.
Is Community free?
Community is free to download, with no in-app purchases.
Do RapidExposure or Community have ads?
Neither RapidExposure nor Community shows ads.
Which is updated more often, RapidExposure or Community?
RapidExposure ships an update every 2 months, and Community monthly. Most recently, RapidExposure was updated on October 2, 2026 and Community on October 3, 2026.

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