ProjectorCalc vs ResEditor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ProjectorCalc
This utility app helps lighting technicians and projectionists calculate projected image dimensions. It determines image width, height, diagonal length, brightness, area, and pixel density based on projector and location details. It also estimates keystone distortion.
- Calculate image width, height, and diagonal length
- Determine brightness in Nits
- Calculate total projected area
- Compute pixels per inch
- Estimate keystone distortion
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Winner of the 2010 Live Design Projection Product of the Year - Software/App Category ProjectorCalc is a program for professional lighting technicians and projectionists. Its primary purpose is to determine the size of a projected image given various information about the projector and it's location. ProjectorCalc allows users to enter details for a projector and its location in relation to a projection surface. ProjectorCalc will calculate image width, image height, diagonal length, brightness in Nits, total projected area, and how many pixels per inch the projected image will be. Additionally, ProjectorCalc can give you an estimate of how much keystone distortion will occur by calculating the length of each side of the distorted image.
ResEditor
This app calculates video bandwidth and resolution compatibility for professional video standards. It helps plan IP video infrastructure and provides quick reference for broadcast specifications. Designed for video engineers and system integrators.
- Real-time bandwidth calculations
- Resolution compatibility analysis
- IP video infrastructure planning
- Professional video standard reference
- PDF export for documentation
- Offline functionality
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ResEditor is the essential bandwidth calculator and resolution analyzer for video engineers, broadcast professionals, and system integrators. Instantly calculate whether your resolution fits a given interface, plan IP video infrastructure, and reference specifications for every major professional video standard -- all in one app. LINK CALCULATOR Analyze resolution compatibility across display and broadcast interfaces: - HDMI 1.4, 2.0, and 2.1 - DisplayPort 1.2 (HBR2), 1.4 (HBR3), and 2.1 (UHBR13.5) - SD-SDI through 12G-SDI Configure resolution, refresh rate (24-480Hz), bit depth (8/10/12-bit), chroma subsampling (4:4:4, 4:2:2, 4:2:0), and HDR mode (SDR, HDR10, Dolby Vision). See instantly whether your signal fits with color-coded bandwidth indicators and Single/Dual/Quad Link classification. Scale resolutions from 30% to 190% and browse a grid of scalable options filtered by divisibility (x8, x16) for GPU and encoder compatibility. IP CALCULATOR Plan professional media-over-IP infrastructure with full bandwidth breakdowns: - ST 2110-20 (uncompressed video) - ST 2110-22 (constant bit-rate compressed video, 2:1-20:1) - ST 2110-30 (PCM audio via AES67) - ST 2110-31 (AES3 transparent transport) - ST 2110-40 (ancillary data) - IPMX with JPEG XS (TR-08 / TR-10) - NDI Full, NDI|HX, NDI|HX2, NDI|HX3 - SRT (with adjustable recovery bandwidth and AES encryption) - RIST (with FEC options) Configure multi-stream video, audio, and ancillary data. Select network interfaces (1/10/25/100 GbE) with accurate protocol overhead accounting. Enable ST 2022-7 redundancy for dual-path bandwidth planning. SPECIFICATIONS REFERENCE Quick-reference cards for every supported standard: - HDMI pinouts, max resolutions, and feature support by version - DisplayPort HBR/UHBR variants, MST, DSC, and USB-C Alt Mode - SDI data rates, cable lengths, and embedded audio capabilities - Complete ST 2110 suite overview with bandwidth examples - NDI codec comparison (Full vs. HX variants) with bandwidth tables FEATURES - Real-time bandwidth calculations with green/red fit indicators - Detailed video timing breakdowns (pixel clock, blanking, porches) - Physical display size calculator (PPI-based) - PDF export with selectable sections for system documentation - Dark theme optimized for control rooms and on-set use - Works completely offline -- no internet required - No tracking, no analytics, no data collection Whether you are verifying a 4K HDR signal over HDMI 2.1, planning a 25 GbE ST 2110 facility, optimizing NDI streams for your network, or documenting system specifications, ResEditor gives you the answer in seconds. Designed by CVH Visuals for professionals who need answers fast. NDI® is a registered trademark of Vizrt NDI AB.
Screenshots
Verdict
ProjectorCalc and ResEditor both sit at 5.0 stars, but that hides the real split: 100% of ResEditor's written reviews are positive against 38% of ProjectorCalc's. ResEditor also leads on update cadence (fortnightly vs every 49 months) and ratings volume (8 vs 2). ProjectorCalc's advantage is price ($2.99 vs $19.99) and iOS requirement (9.2 vs 18.6). On rating, ads, in-app purchases and monetization model 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
ProjectorCalc costs $2.99 and ResEditor $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for ProjectorCalc against 5.0 for ResEditor. Both are backed by a comparable volume of ratings — 2 and 8 respectively. Written reviews are what separate them: 38% of ProjectorCalc's written reviews are positive against 100% of ResEditor's.
ProjectorCalc ships an update every 49 months, ResEditor fortnightly. The most recent releases landed on October 31, 2026 and October 30, 2026 respectively.
| Parameter | ProjectorCalc | ResEditor |
|---|---|---|
| Price | $2.99 — better | $19.99 |
| Rating | 5.0 (2 ratings) | 5.0 (8 ratings) |
| Positive reviews | 37.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 | 8 — better |
| Update frequency | Every 49 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 9.2 — better | 18.6 |
| Further details — not scored | ||
| Size | 10 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | D!HV Lighting | Christopher Van Hoose |
Customer experience
ProjectorCalc
ResEditor
In-app purchases
ProjectorCalc
No in-app purchases
ResEditor
No in-app purchases









