DropTubeBuilder vs LAN Screen Control
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DropTubeBuilder
This tool simplifies fuel system measurements for technicians. It offers accurate drop tube calculations, supports precise fill levels, and provides a reference for dispenser error codes. Streamline your work and ensure regulatory compliance in the field.
- Accurate drop tube length calculations
- 95% fill level support
- Tank volume chart builder
- Dispenser error code reference
- User-friendly field interface
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DropTubeBuilder is the offline field tool for fuel system technicians who work dispenser, tank monitor and pump alarms, cut overfill drop tubes, and build tank charts on site. Everything works with no signal, because the pit does not have any. DROP TUBE CUT MATH Enter the measurements and get the cut length that puts the overfill valve at the 95 percent regulatory fill level. Supports Franklin Defender, EMCO, and OPW ISO valves, with the seat to bottom, tank height and riser measurements each handled properly. Upper cut, lower cut and total length come back with the shutoff height so you can check the result before you cut anything. TANK CHART BUILDER Build a volume chart in eighth inch increments for any tank, and export it as a PDF you can leave on site or file. Built in instructions walk through fitting the chart to a real tank, including why the 95 and 90 percent overfill heights follow the tank diameter alone and hold steady when the length changes. ERROR CODES Nearly 600 codes covering Gilbarco Encore 300, 500S and 700S, Wayne Ovation, Veeder-Root TLS-300, TLS-350, TLS-450, TLS-450 PLUS and TLS4, and Franklin INCON EVO 550 and 5000. Tap any code and you get what it actually means, then an ordered list of what to check, most likely cause first, so you can work the alarm instead of just reading it back. Line test failures start with the programming that causes most false failures. Console faults tell you when the alarm is an audit entry rather than a fault. Where an alarm carries a compliance consequence, that is stated after the repair steps, not instead of them. Searchable, fully offline, and written to be verified against the manufacturer service manual rather than to replace it. PUMP CONTROLLERS Fault codes, status codes, DIP switch settings and calibration notes for FE Petro MagVFC and Guardian SPGC 220 controllers. EPD THREE YEAR INSPECTION Work the inspection criterion by criterion and get a clear pass or fail, then export a signed PDF record. The footer reminds you to keep the record copy for three years, because that is the part people forget. MEASUREMENT HISTORY Every calculation is saved with its site name, so last year's job is there when you go back. Re export any past calculation as a PDF. BUILT FOR THE FIELD Everything ships inside the app. No account, no login, no server, no advertising, and nothing collected about you or your sites. It works in a tank pit with no bars. Available in English, Spanish, French, German, Hindi and Chinese. SUBSCRIPTION DropTubeBuilder Pro is $4.99 a month or $24.99 a year. The yearly plan starts with a 3 day free trial with full access. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period, and the account is charged for renewal within 24 hours before the period ends. Manage or cancel any time in your Apple Account settings. Any unused part of a free trial ends when you buy a subscription. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ DropTubeBuilder Terms: https://thrasherapps.com/droptubebuilder/terms.html Privacy Policy: https://thrasherapps.com/droptubebuilder/privacy.html Support: https://thrasherapps.com/droptubebuilder/support.html
LAN Screen Control
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LAN Screen Control is a local-network VNC client built for iPhone and iPad. It connects directly to Screen Sharing or Remote Management built into macOS, without a companion app on the Mac or a developer-operated cloud relay. FEATURES - Discover Macs on the same network, or enter a host name, IP address, and port manually - Sign in with a Mac user account or VNC password - View all displays or choose one screen, with manual dual-display calibration when needed - Precision trackpad with click, double-click, right-click, drag, two-finger scroll, and a vertical scroll strip - Remote keyboard with Esc, Tab, Delete, arrow keys, Command, and other common controls - Compose text locally or use system keyboard dictation, review it, then send it to the Mac - Ultra Smooth, Balanced, and High Quality performance profiles - Optional per-Mac clipboard sync, off by default - Bonjour discovery and automatic reconnection Saved computer details and preferences remain on this device. Usernames and passwords are stored in the system Keychain and are not synced through iCloud. The app contains no advertising or analytics SDKs and does not collect or upload connection details. Before connecting, turn on Screen Sharing or Remote Management in System Settings > General > Sharing on your Mac, and keep both devices on the same trusted local network. A VNC session should not be treated as end-to-end encrypted. Do not expose the VNC port directly to the internet. LAN Screen Control does not provide a public relay, audio, or file transfer.
Screenshots
Verdict
The clearest difference is in-app purchases: LAN Screen Control at none against DropTubeBuilder's 2. On price, update cadence, 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
Both are free to download. DropTubeBuilder sells 2 in-app purchases, starting at $4.99 per month. LAN Screen Control asks for nothing beyond the download.
DropTubeBuilder ships an update every 3 weeks, LAN Screen Control every 11 days. The most recent releases landed on October 24, 2026 and October 11, 2026 respectively.
| Parameter | DropTubeBuilder | LAN Screen Control |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (6 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Every 3 weeks | Every 11 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 2 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Chris Thrasher | 洋 周 |
In-app purchases
DropTubeBuilder
- DropTubeBuilder Pro monthly$4.991 Month
- DropTube Pro Annual3 Days trial$24.991 Year
LAN Screen Control
No in-app purchases
Questions
Is DropTubeBuilder free?
Is LAN Screen Control free?
Do DropTubeBuilder or LAN Screen Control have ads?
Which is updated more often, DropTubeBuilder or LAN Screen Control?
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