DiagEdge vs OpenDisplay
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DiagEdge
Read full descriptionHide full description
DiagEdge is an AI-powered diagnostic assistant built specifically for automotive workshops and technicians. Stop guessing. Start diagnosing. DIAGNOSTIC MODULES - Diagnostic — Fault codes, live data, symptom-based diagnosis - Waveform — Oscilloscope signal analysis and interpretation - Wiring Logic — Circuit faults, shorts, CAN bus diagnosis - AC Diagnosis — Air conditioning system fault diagnosis - DPF & Emissions — DPF regens, EGR, AdBlue, emissions faults - Charging & Starting — Battery, alternator, starter, parasitic draw KNOWLEDGE BASE Access 200,000+ solved cases, recalls and Technical Service Bulletins (TSBs). Search by make, model, fault code or symptom. REGO LOOKUP Australian rego lookup powered by NEVDIS — instantly identify vehicle make, model, year and VIN from a number plate. US rego lookup to come VOICE INPUT Describe faults hands-free using voice input while working on the vehicle. IMAGE ANALYSIS Attach photos of fault codes, wiring diagrams or damaged components for AI analysis. Built for professional automotive workshops. A$1 first month, then A$50/month or US$1 first month, then US$35/month Terms of Use (EULA): https://www.diagedge.au/terms Privacy Policy: https://www.diagedge.au/privacy-policy
OpenDisplay
Transform your iPhone or iPad into a genuine second display for your Mac. This open-source solution allows you to extend your screen space for multitasking, keeping important information visible. Connect via USB for minimal latency or Wi-Fi for easy setup.
- Real extended display functionality
- USB and Wi-Fi connectivity
- Retina-sharp rendering
- Touch and scroll support
- Portrait and landscape orientation
- Private by design, no tracking
Read full descriptionHide full description
OpenDisplay turns your iPhone or iPad into a second display for your Mac. It's the open-source way to put your spare Apple device to work as a real extended monitor — drag windows onto it, keep chat, notes, or logs in view, and gain screen space anywhere you go. It's not a mirror: it's a genuine additional display your Mac treats like any other monitor. • Real extended display — arrange it in your Mac's Display settings and drag windows across • Connect over USB for the lowest latency, or over Wi-Fi with zero setup • Retina-sharp, pixel-for-pixel rendering • Touch and scroll — tap, drag, and two-finger scroll to control your Mac • Works in portrait or landscape • Private by design — a direct connection between your own devices, with no accounts, no servers, and no tracking IMPORTANT: OpenDisplay requires the companion OpenDisplay app for Mac, running on your computer on the same cable or Wi-Fi network. Get it at opendisplay.app — without it, this app has nothing to connect to. OpenDisplay is open source under the GPL-3.0 license. Read the code, report issues, or contribute at https://github.com/peetzweg/opendisplay
Screenshots
Verdict
The clearest difference is in-app purchases: OpenDisplay at none against DiagEdge's 3. On price, ads, device support and iOS requirement 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. DiagEdge sells 3 in-app purchases, starting at $29.99 per month. OpenDisplay asks for nothing beyond the download.
| Parameter | DiagEdge | OpenDisplay |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.7 (21 ratings) — better |
| Positive reviews | — | 92.3% of reviews |
| Number of ratings | — | 21 — better |
| Update frequency | — | Every 8 days |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 32 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Robert Romano | Philip Poloczek |
In-app purchases
DiagEdge
- DiagEdge Diagnostic Monthly1 Month trial$29.991 Month
- DiagEdge Pro Monthly1 Month trial$59.991 Month
- DiagEdge Teams Monthly1 Month trial$99.991 Month
OpenDisplay
No in-app purchases









