Comparison

Long Exposure Calculator vs Snap & Release

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

Head to head
About

Long Exposure Calculator

Calculate precise exposure times for long-exposure photography with Neutral Density filters. Features a countdown timer for exposures over 10 seconds and supports up to 24 stops of ND filtration.

Highlights
  • ND filter exposure calculation
  • Countdown timer
  • Supports up to 24-stop ND filters
  • Simple to use
Read full description

Long Exposure Calculator is a utility that helps you determine the correct exposure time/shutter speed when using Neutral Density filters. Features: - Very simple to use - Includes a countdown timer if the exposure time is 10 seconds or longer. - Supports up to 24-stops of ND filter iPhone, iPad, and iPod touch compatible.

About

Snap & Release

Easily create, manage, and share legally binding model and property release forms. Capture signatures, add photos, and select from various templates. Sync across devices and export as PDFs.

Highlights
  • Record model and property release forms
  • Capture digital signatures
  • Add model photos and ID
  • Utilize various release templates
  • Sync releases across devices
  • Export releases as PDFs
  • Print releases directly
Read full description

Snap & Release is the easy way to record, manage, and print your model release and property release forms. FEATURES: ADD A MODEL RELEASE: -- Enter model information (model's name, contact information, date of birth, and more) in an easy to use form -- Easily record model, witness, and parent/guardian signatures right on the screen of your device -- Optionally add a model photo or headshot, and a photo of the model's identification -- Pick from a list of existing shoots (and easily reuse the name, description, and location you previously entered), or create a new shoot -- Set the location of the shoot based on your location -- A parent/guardian signature is automatically required if a model is under 18 based on the selected date of birth -- Choose whether to require all fields or just the essential ones (names and signatures) when adding a model release ADD A PROPERTY RELEASE: -- Select whether the release is for real estate or intellectual property -- Record owner/representative and witness signatures right on screen -- Add documentation photos to easily identify what property the release is for -- Choose whether to require all fields or just the essential ones (description, names, and signatures) when adding a property release RELEASE TEMPLATES: -- Select from a variety of included model and property release agreement templates, including ASMP, iStockPhoto, Shutterstock, and 500px -- Generic, iStockPhoto, and Shutterstock release agreements available in English, Spanish, Italian, and German -- Add your own custom model release agreements -- Easily change the language of your model and property release agreements in the Options tab -- Choose which of the included model and property release agreements are displayed when adding a release VIEW AND MANAGE: -- Sort your model and property releases chronologically or alphabetically (sorted by model name or property name) -- View release details in an easy to read format, with all the information presented in one place -- Duplicate an existing release to reuse a model's information for a new shoot or with a new release template -- Search your model or property releases by name, shoot name, shoot description, shoot location, and date -- Delete model or property releases with just a simple right-to-left swipe from the list view SHARE AND SAVE: -- Save a PDF of your property or model releases to the Files app, or any third party cloud storage apps (such as Dropbox, OneDrive, Box, and more) installed on your device -- Send a PDF of a model or property release via email, messages, AirDrop, and many third-party apps -- Print your model or property releases right from your device with any AirPrint printer or third-party printing app -- See a preview of the release PDF before saving, sending, or printing SYNC: -- Access your model and property releases on all your devices with iCloud sync -- Your information is entered once (when first launching Snap & Release), then saved to be displayed when generating release forms. Edit it at any time in the Options tab

Screenshots

Long Exposure Calculator4 screens
Snap & Release4 screens

Verdict

The call

The clearest difference is price: Long Exposure Calculator at Free against Snap & Release's $1.99. Long Exposure Calculator also leads on rating (4.4 vs 3.2) and review sentiment (82% vs 50%). Snap & Release's advantage is in-app purchases (none vs 6) and ads (none vs shown). On device support and iOS requirement 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

Long Exposure Calculator is free to download; Snap & Release costs $1.99 up front. Long Exposure Calculator sells 6 one-off in-app purchases. Snap & Release asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Long Exposure Calculator holds the better App Store score, 4.4 against 3.2. Both are backed by a comparable volume of ratings — 64 and 17 respectively. Written reviews point the same way: 82% of Long Exposure Calculator's written reviews are positive against 50% of Snap & Release's.

UpkeepUpdate frequency

Long Exposure Calculator ships an update every 19 months, Snap & Release every 2 weeks. The most recent releases landed on October 21, 2026 and October 27, 2026 respectively.

Scorecard8 real differences · 2 level
Long Exposure Calculator versus Snap & Release: the parameters behind the verdict, then further details
ParameterLong Exposure CalculatorSnap & Release
PriceFree — better$1.99
Rating4.4 (64 ratings) — better3.2 (17 ratings)
Positive reviews81.7% of reviews — better50.0% of reviews
Number of ratings64 — better17
Update frequencyEvery 19 monthsEvery 2 weeks — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS12.0 — better13.1
Further details — not scored
Size24 MB28 MB
Age rating4+4+
DeveloperJunel CoralesDavid Willmore

Customer experience

Long Exposure Calculator

All ratings62 ratings
Positive83.9%
Neutral4.8%
Negative11.3%
Written reviews71 reviews
Positive81.7%
Neutral5.6%
Negative12.7%

Snap & Release

All ratings14 ratings
Positive64.3%
Neutral14.3%
Negative21.4%
Written reviews10 reviews
Positive50.0%
Neutral20.0%
Negative30.0%

Bugs and requests

Long Exposure Calculator

Reported bugs

5 issues
  • App freezes after each use
  • App crashes after update
  • App freezes and needs to be closed and reopened
  • App runs no more after iOS update
  • App crashes and cannot be opened again

Requested features

11 requests
  • Filter bag feature to select owned filters
  • Ability to edit existing filters for precise values
  • Combine multiple filters in calculations
  • Option to display calculated time in seconds only
  • Acoustic signal/alarm at the end of the timer
Show 6 more
  • Tutorial for new users
  • Translation to Spanish
  • Include aperture in calculations
  • Background operation for timer
  • 10-second warning before timer ends
  • Loud buzzer at the end of the timer

Snap & Release

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

Long Exposure Calculator

One-time6
  • Leave a Tip$1.99
  • Leave a Tip$2.99
  • Leave a Tip$3.99
Show 3 more
  • Leave a Tip$5.99
  • Leave a Tip$9.99
  • Leave a tip$14.99
None

Snap & Release

No in-app purchases

Questions

Is Long Exposure Calculator free?
Long Exposure Calculator is free to download, with in-app purchases available.
Is Snap & Release free?
Snap & Release costs $1.99, with no in-app purchases.
Which has better reviews, Long Exposure Calculator or Snap & Release?
Long Exposure Calculator is rated higher. Long Exposure Calculator averages 4.4 out of 5 from 64 ratings, while Snap & Release averages 3.2 from 17 ratings.
Do Long Exposure Calculator or Snap & Release have ads?
Long Exposure Calculator shows ads; Snap & Release does not.
Which is updated more often, Long Exposure Calculator or Snap & Release?
Long Exposure Calculator ships an update every 19 months, and Snap & Release every 2 weeks. Most recently, Long Exposure Calculator was updated on October 21, 2026 and Snap & Release on October 27, 2026.

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