Comparison

Sim DATA Calculator vs Stellar by ARRI

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

Head to head
About

Sim DATA Calculator

This tool helps professionals in media production calculate data transfer times and media sizes for various cameras. It offers an all-in-one solution for comparing camera data, estimating internet transfer durations, and calculating consumption for entire shows or movies.

Highlights
  • Compare camera data sizes side-by-side
  • Calculate internet transfer times
  • Copy results to clipboard
  • Calculate data consumption for TV shows/movies
  • Calculate complex framing variations
Features
Read full description

Sim is a camera rental and post production company constantly calculating data rates, timecode, internet transfer times. There are many tools on the market that offer this functionality, but none that work as an all in one solution. Most are not up to date with the latest cameras and flipping between various apps is a pain. Therefore we created the Sim DATA Calculator. Within this app you can: - Compare various camera data sizes, side by side - Calculate how long it would take to send that media over the internet - Copy results from calculations to your clipboard for use in other apps - Calculate data consumption for an entire tv show or movie in one step - Calculate and visualize complex framing variations

About

Stellar by ARRI

This app simplifies professional lighting control for film and studio productions. It automates complex DMX settings, offers intuitive interfaces for color adjustments, and seamlessly connects ARRI and third-party fixtures. Organize setups, manage fixtures, and create custom looks with ease.

Highlights
  • Project and scene organization
  • Automatic fixture discovery (RDM)
  • Auto Layout for DMX management
  • Advanced color control (CCT, HSI, RGBW, x,y)
  • Fixture grouping and control
  • Import light plot diagrams
  • Export/Import projects and scenes
Features
Read full description

ARRI is improving Stellar since its introduction, closely follow technology developments and users’ feedback of this intelligent app for professional lighting control. Stellar reimagines lighting control by automatically managing complex DMX settings and by featuring control interfaces with stunning graphic design. Programmed intelligence and advanced communication make connecting ARRI LED fixtures and third party fixtures to the app simple and straightforward. Features: - Create projects and scenes to organize your lighting setups - Automatic discovery of ARRI fixtures using RDM - Auto Layout (automatically manages DMX modes and addresses) - Unique and beautiful user interfaces for all color modes - Control CCT, HSI, RGBW, x,y Coordinates, Gel Selection, Source Matching and Lighting Effects - Select gel and source matching colors for the L-Series - Import a light plot diagram to visually layout fixtures - Advanced color gamut selection in x,y Coordinates - Group fixtures to control them at the same time - Favorites to store a custom color or lighting effect - Look creation to store scene color settings - Live Sync - Export/Import projects, scenes, & favorites - iCloud backup - Change settings of fixtures - Control the master intensity of all fixtures - Multi-Select fixtures - Advanced search and sort functions - Quickly identify fixtures via RDM - Handles Art-Net compliant nodes and complex DMX networks - Assign names to fixture for easy referencing - Works on iPhones and iPads Stellar is the perfect app to quickly and easily control ARRI and third party lights in small to mid size studio as well as while on set. Whether a large film with many scenes and setups or a small project with just a few fixtures, Stellar is built to work in all scenarios. With a long list of feature additions already implemented and planned, Stellar is growing into a fully featured lighting control platform. Stellar is the “go-to” application for controlling fixtures as it seamlessly integrates functionality with great design making the task of adjusting lights effortless. Preview: https://youtu.be/JmGP9tzg-X8 Compatibility: Works with iPhones (5.5” and up) and iPads (9.7” and up), iOS 11 and up Art-Net Gateways: SkyLink, SkyPanel (FW 4.1 and up), ENTTEC, Luminex Stellar Unlimited: Test and work with all features of Stellar, it is free of charge for five fixture. Get unlimited access with a one-time payment. Privacy Policy: https://www.arri.com/en/privacy EULA: http://www.arri.com/corporate/about_arri/legal/end_user_license_agreement/ ©2022 Arnold & Richter Cine Technik GmbH & Co. Betriebs KG. All ARRI trademarks and copyrights used herein are the property of the ARRI. All rights reserved.

Screenshots

Sim DATA Calculator4 screens
Stellar by ARRI4 screens

Verdict

The call

The clearest difference is rating: Stellar by ARRI at 4.5 against Sim DATA Calculator's 3.3. Stellar by ARRI also leads on update cadence (every 6 weeks vs every 3 months) and ratings volume (41 vs 8). Sim DATA Calculator's advantage is review sentiment (67% vs 31%) and in-app purchases (none vs 3). On price, ads 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. Stellar by ARRI sells 3 in-app purchases, starting at $9.99 per month. Sim DATA Calculator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Stellar by ARRI holds the better App Store score, 4.5 against 3.3. That said, the two scores are not equally well evidenced: Stellar by ARRI has 41 ratings behind it against 8, so its average is the more settled of the two. Written reviews complicate that: 67% of Sim DATA Calculator's written reviews are positive against 31% of Stellar by ARRI's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Sim DATA Calculator ships an update every 3 months, Stellar by ARRI every 6 weeks. The most recent releases landed on October 4, 2026 and October 6, 2026 respectively.

Scorecard7 real differences · 3 level
Sim DATA Calculator versus Stellar by ARRI: the parameters behind the verdict, then further details
ParameterSim DATA CalculatorStellar by ARRI
PriceFreeFree
Rating3.3 (8 ratings)4.5 (41 ratings) — better
Positive reviews66.7% of reviews — better30.8% of reviews
Number of ratings841 — better
Update frequencyEvery 3 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS8.0 — better13.1
Further details — not scored
Size4 MB84 MB
Age rating4+17+
DeveloperPicture Shop, LLCARRI Group

Customer experience

Sim DATA Calculator

All ratings8 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews9 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Stellar by ARRI

All ratings41 ratings
Positive87.8%
Neutral0.0%
Negative12.2%
Written reviews13 reviews
Positive30.8%
Neutral7.7%
Negative61.5%

In-app purchases

None

Sim DATA Calculator

No in-app purchases

3 purchases

Stellar by ARRI

Subscriptions2
  • Stellar Monthly Subscription14 Days trial$9.991 Month
  • Stellar Yearly Subscription14 Days trial$99.991 Year
One-time1
  • Stellar Unlimited$99.99

Questions

Is Sim DATA Calculator free?
Sim DATA Calculator is free to download, with no in-app purchases.
Is Stellar by ARRI free?
Stellar by ARRI is free to download, with in-app purchases available.
Which has better reviews, Sim DATA Calculator or Stellar by ARRI?
Stellar by ARRI is rated higher. Sim DATA Calculator averages 3.3 out of 5 from 8 ratings, while Stellar by ARRI averages 4.5 from 41 ratings.
Do Sim DATA Calculator or Stellar by ARRI have ads?
Neither Sim DATA Calculator nor Stellar by ARRI shows ads.
Which is updated more often, Sim DATA Calculator or Stellar by ARRI?
Sim DATA Calculator ships an update every 3 months, and Stellar by ARRI every 6 weeks. Most recently, Sim DATA Calculator was updated on October 4, 2026 and Stellar by ARRI on October 6, 2026.

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