FuelTech Datalog Viewer vs VerticalWB
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FuelTech Datalog Viewer
Analyze engine data logs from compatible FuelTech ECUs on your mobile device. View up to four channels simultaneously for quick data analysis and check status events for errors. Log files must be transferred to the device manually.
- View up to 4 recorded channels simultaneously
- Quick data analysis
- Check status events for errors
- Supports FT450, FT500, FT500LITE, FT550, FT550LITE, FT600 models
- Log file viewer for phone/tablet
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The FuelTech Datalog Viewer application is a log file viewer for your phone or tablet to the Power FT line, which includes the FT450, FT500, FT500LITE, FT550, FT550LITE and FT600 models. With it, you can simultaneously view up to 4 recorded channels, allowing a quick data analysis. The status events are also available through the application, allowing you to easily check for errors while recording the log. Note: The application does not allow a direct connection to the ECU. You need to send the log file to the phone via email, WhatsApp, Dropbox or any other means. Visit http://www.fueltech.net for more information!
VerticalWB
A streamlined weight and balance calculator for Robinson helicopter pilots. It offers offline functionality and a clean interface for easily calculating fuel, gross weight, and CG projections. Supports custom helicopter profiles for quick preflight calculations.
- Offline weight and balance calculation
- Supports R22, R44, R66 models
- Calculates max fuel, recommended fuel, gross weight, CG
- In-flight CG projections
- Unlimited custom helicopter profiles
- Clean and simple user interface
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The most streamlined Weight and balance calculator for Robinson Pilots. Works 100% Offline. VerticalWB is a modern helicopter weight and balance calculator designed for pilots flying Robinson Helicopters. This app's User Interface is modern, simple, clean, and effective. So that any pilot or flight school can easily use it. This app is not affiliated with the Robinson Helicopter Company. Easily calculate your: Max Fuel Recommended Fuel Total Gross Weight Longitudinal CG Lateral CG In-Flight CG projections and see all the calculation numbers yourself! VerticalWB allows you to add an unlimited amount of custom helicopter profiles to use at anytime. Just enter in the weights of the pilots, passengers, and cargo, and watch VerticalWB do the rest! Speed up your preflight with VerticalWB! R22 Weight and Balance, R44 Weight and Balance, R66 Weight and Balance! --Disclaimer-- This weight & balance and CG calculator app is built using data strictly from the Robinson POH's. This application's logic has been extensively verified to ensure accurate reliability. That being said, this app has no affiliation with Robinson Helicopters. The calculations this app produces are subject to coding errors and inaccuracy. Remember 14 CFR § 91.3(a): "The pilot in command of an aircraft is directly responsible for, and is the final authority as to, the operation of that aircraft." ---- Contact us or Report Bugs to: Verticalweightbalance@gmail.com
Screenshots
Verdict
The clearest difference is review sentiment: VerticalWB at 100% against FuelTech Datalog Viewer's 40%. VerticalWB also leads on update cadence (every 2 weeks vs every 9 months) and rating (5.0 vs 4.8). FuelTech Datalog Viewer's advantage is price (Free vs $1.99) and iOS requirement (9.3 vs 15.6). 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
FuelTech Datalog Viewer is free to download; VerticalWB costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
VerticalWB holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 4 and 6 respectively. Written reviews point the same way: 40% of FuelTech Datalog Viewer's written reviews are positive against 100% of VerticalWB's.
FuelTech Datalog Viewer ships an update every 9 months, VerticalWB every 2 weeks. Both last shipped on October 24, 2026.
| Parameter | FuelTech Datalog Viewer | VerticalWB |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 4.8 (4 ratings) | 5.0 (6 ratings) — better |
| Positive reviews | 40.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 4 | 6 — better |
| Update frequency | Every 9 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.3 — better | 15.6 |
| Further details — not scored | ||
| Size | 168 MB | 5 MB |
| Age rating | 4+ | +4 |
| Developer | FuelTech | Sean Heiken |
Customer experience
FuelTech Datalog Viewer
VerticalWB
In-app purchases
FuelTech Datalog Viewer
No in-app purchases
VerticalWB
No in-app purchases
Questions
Is FuelTech Datalog Viewer free?
Is VerticalWB free?
Which has better reviews, FuelTech Datalog Viewer or VerticalWB?
Do FuelTech Datalog Viewer or VerticalWB have ads?
Which is updated more often, FuelTech Datalog Viewer or VerticalWB?
Other comparisons
