Letus Helix vs Stop Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Letus Helix
This app provides a streamlined interface for adjusting settings on various Letus Helix gimbal models. It simplifies configuration by removing less frequently used options found in desktop software, offering additional user assistance tools for easier operation.
- Intuitive settings adjustment
- Simplified configuration
- User assistance tools
- Wi-Fi connectivity
- Support for multiple Helix models
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The Letus Helix app is designed to be a simple and intuitive way of changing settings on the Letus Double Helix, Helix Pro, Standard Helix, and Helix Jr. Many settings from the SimpleBGC GUI (PC/Mac-based configuration program) have been eliminated, because those settings are only needed to work with other gimbals or are rarely used. Additional tools to help the user have been created to assist the user in their use of the Helix. Connection with the Helix is done as follows: 1) Turn the Helix on 2) Go to the Home screen on your iPhone/iPad. 3) Find Settings -> Wi-Fi and select your Letus Helix. 4) Enter the wifi password found in the app help files (found by pressing the info button on the app's main menu). 5) Once it connects in iOS, you can go to the app and press the connect button.
Stop Calculator
This tool helps filmmakers quickly compare exposure settings between two cameras. It calculates precise stop differences in real-time, ensuring your shots are perfectly exposed and matched across different setups. Simplify your workflow and eliminate guesswork.
- Compare ISO, t-stop, shutter angle, and FPS
- Real-time stop difference calculation
- Intuitive interface for filmmakers
- Exposure feedback for underexposed/overexposed shots
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Easily compare exposure settings between two cameras and get instant feedback on exposure differences. Whether you’re working with multiple cameras or trying to match your settings across different setups, Stop Calc simplifies the process by calculating precise stop differences in exposure. No more guessing—quickly find out if your settings are underexposed or overexposed and make informed decisions to get perfect shots every time. Key features: - Compare ISO, t-stop, shutter angle, and FPS between two cameras - Get accurate stop differences in real-time - Simple, intuitive interface designed for filmmakers Perfect for cinematographers, videographers, and anyone who needs precise exposure matching across different cameras.
Screenshots
Verdict
The clearest difference is price: Letus Helix at Free against Stop Calculator's $0.99. Letus Helix also leads on iOS requirement (11.0 vs 15.6). Stop Calculator's advantage is rating (5.0 vs 3.7) and update cadence (every 2 days vs every 4 months). On ratings volume, ads, in-app purchases 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
Letus Helix is free to download; Stop Calculator costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Stop Calculator holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 4 respectively. Written reviews point the same way: 80% of Letus Helix's written reviews are positive against 100% of Stop Calculator's.
Letus Helix ships an update every 4 months, Stop Calculator every 2 days. Both last shipped on October 24, 2026.
| Parameter | Letus Helix | Stop Calculator |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 3.7 (3 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 80.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 3 | 4 — better |
| Update frequency | Every 4 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 21 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Ken Lawler | eric Hernandez |
Customer experience
Letus Helix
Stop Calculator
In-app purchases
Letus Helix
No in-app purchases
Stop Calculator
No in-app purchases
Questions
Is Letus Helix free?
Is Stop Calculator free?
Which has better reviews, Letus Helix or Stop Calculator?
Do Letus Helix or Stop Calculator have ads?
Which is updated more often, Letus Helix or Stop Calculator?
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