MECH AI vs Carly
AI for any vehicle, no adapter required.
Carly pairs a Universal Scanner with an app for diagnostics and manufacturer-level coding — strongest on European brands. MECH AI is a software-only AI mechanic for any make — describe the symptom or paste a code and get likely causes, repair steps, parts, and cost estimates for your exact vehicle. No adapter, no brand lock-in, on iOS, Android, and the web, with a real free tier.
FREE tier · DIY $7.99/mo · any make · iOS / Android / Web
TL;DR
Choose MECH AI if you want a frontier-LLM AI mechanic that diagnoses and explains problems for any vehicle without buying hardware — software-only, on iOS, Android, and web, free to start, $7.99/mo for DIY, with repair guides, TSBs, wiring diagrams, and a parts finder. Choose Carly if you drive a supported European car (BMW, Mercedes, Audi, VW) and want OEM-level coding and adaptations — that’s Carly’s specialty, and it requires the Carly Universal Scanner.
At a glance
Honest side-by-side. Where Carly has the edge, we say so.
| MECH AI | Carly | |
|---|---|---|
| What it is | Software AI mechanic for any vehicle | OBD adapter + app for diagnostics & manufacturer coding |
| Hardware required | None — works on any phone or browser | Yes — the Carly Universal Scanner (~$80-95 one-time) |
| AI diagnostic chat | Frontier LLM, context-aware to your exact vehicle | Not a frontier-LLM chat assistant; guided diagnostics |
| Vehicle coverage | Any make/model — broad, not brand-locked | Best on Euro brands (BMW, Mercedes, Audi, VW); coverage varies by brand |
| Deep OEM coding / adaptations | No (not a coding tool) | Yes — feature coding & adaptations on supported brands (a real edge) |
| Free tier | Yes — ad-supported, AI chat + OBD-II decoder, 1 saved vehicle | Basic OBD fault-code reading; full features need a paid license |
| Entry paid price | DIY $7.99/mo (software-only) | License from ~$68.89/yr (single brand); adapter ~$80-95 one-time |
| Repair guides + step-by-step videos | Yes (DIY+) | Repair guidance varies; not a guide library |
| Recall alerts + TSBs | Yes (DIY+) | Not advertised |
| AI wiring diagrams | Yes (DIY 3/day, MECHANIC 5/day) | No |
| Parts & tool finder | Yes (DIY+) | No |
| Shop / team tier | AUTOSHOP $59.99/mo (whole shop); SHOP MANAGER multi-location | No dedicated shop tier |
| Platforms | iOS, Android, Web | iOS, Android (needs adapter) |
| Cancel anytime | Yes — one-tap via RevenueCat | Annual licenses; adapter is a one-time buy |
Carly pricing and features verified June 2026 from mycarly.com and the App Store listing: Universal Scanner ~$80-95 one-time (Basic package $89.80), licenses ~$68.89/yr (single brand) to ~$109.88/yr (All Brands), adapter often bundled with a subscription. Pricing varies by region and brand — verify current pricing on Carly’s site before purchase.
When Carly is the better pick
We try to be honest. Choose Carly if…
- You drive a supported European brand (BMW, Mercedes, Audi, VW) and want manufacturer-level coding and adaptations — Carly’s core strength, which MECH AI doesn’t do.
- You want to plug a scanner in and read brand-specific module data and adaptations directly from the car.
- You prefer a one-time adapter plus an annual brand license over a monthly software subscription.
Why owners and pros pick MECH AI
1. Any make, no brand lock-in
Carly’s deepest features are brand-specific. MECH AI’s AI Mechanic works across daily drivers, trucks, and imports alike — you don’t buy a license per brand.
2. Nothing to plug in
No adapter, no pairing. Describe the noise / light / symptom (or paste a code) and get a ranked likely-cause list, repair steps, parts, and cost ranges — free to start.
3. The whole repair workflow
Repair guides and videos, recall alerts and TSBs, AI wiring diagrams, and a parts & tool finder — and it scales from a free owner tier up to AUTOSHOP ($59.99/mo for a whole shop). It is built for both owners and pros, not a coding-only utility.
Common questions
- It depends on what you need. MECH AI is a strong Carly alternative if you want AI-driven diagnosis and repair guidance for any vehicle without buying a brand-specific scanner. MECH AI is software-only (iOS, Android, web), has a real free tier, and starts at $7.99/mo. Carly's strength is OEM-level coding and adaptations on supported brands — especially BMW, Mercedes, Audi, and VW — which requires the Carly Universal Scanner. If your goal is deep manufacturer coding on a Euro car, Carly is purpose-built for that; if your goal is fast AI diagnosis, repair steps, parts, and cost estimates across any make, MECH AI fits better.
Try the AI mechanic free
No adapter, no credit card to start. iOS, Android, or right in your browser.