Manifold: Car Diagnostics
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About this app
Manifold turns your OBD2 adapter into a diagnostic tool that explains itself.
Plug in a Bluetooth ELM327 adapter, scan your vehicle, and get the trouble codes — then get an actual explanation of what they mean for your car, what's likely causing them, what it should cost to fix, and whether it's safe to keep driving.
WHAT IT DOES
Read and clear trouble codes. Stored and pending codes, check-engine-light status, and freeze-frame data from any OBD2-compliant vehicle (1996 and newer in the US).
Live gauges. Watch coolant temp, RPM, load, fuel trim, and more while the engine runs.
Plain-English diagnosis. Codes come back as "P0301" — Manifold tells you what that means for your specific year, make, and model, ranks the likely causes, estimates parts and labor cost, and rates the job's difficulty for a DIYer.
Straight answers on severity. Every diagnosis says whether you're safe to drive, should get it looked at soon, or should stop driving now.
Ask a mechanic. A chat that knows your vehicle and your codes. Attach a photo of the part you're looking at and ask what it is.
Garage and maintenance log. Track multiple vehicles, record service history, and set mileage reminders for the next oil change or belt.
BRING YOUR OWN API KEY
The AI features run on Google's Gemini API using a free key you create yourself, so there's no subscription and no middleman. Manifold shows you how to get one in about two minutes. Scanning, code lookup, gauges, garage, and maintenance tracking all work without a key at all.
NO SUBSCRIPTIONS
Four AI diagnoses and ten chat messages are free. One purchase unlocks unlimited use, forever. No ads, no recurring charges, no account to create.
WHAT YOU NEED
An OBD2 Bluetooth adapter (ELM327-compatible) and a vehicle from 1996 or later.
Manifold is a diagnostic aid, not a replacement for a professional inspection. On anything involving brakes, steering, fuel leaks, or overheating, get eyes on it.
Plug in a Bluetooth ELM327 adapter, scan your vehicle, and get the trouble codes — then get an actual explanation of what they mean for your car, what's likely causing them, what it should cost to fix, and whether it's safe to keep driving.
WHAT IT DOES
Read and clear trouble codes. Stored and pending codes, check-engine-light status, and freeze-frame data from any OBD2-compliant vehicle (1996 and newer in the US).
Live gauges. Watch coolant temp, RPM, load, fuel trim, and more while the engine runs.
Plain-English diagnosis. Codes come back as "P0301" — Manifold tells you what that means for your specific year, make, and model, ranks the likely causes, estimates parts and labor cost, and rates the job's difficulty for a DIYer.
Straight answers on severity. Every diagnosis says whether you're safe to drive, should get it looked at soon, or should stop driving now.
Ask a mechanic. A chat that knows your vehicle and your codes. Attach a photo of the part you're looking at and ask what it is.
Garage and maintenance log. Track multiple vehicles, record service history, and set mileage reminders for the next oil change or belt.
BRING YOUR OWN API KEY
The AI features run on Google's Gemini API using a free key you create yourself, so there's no subscription and no middleman. Manifold shows you how to get one in about two minutes. Scanning, code lookup, gauges, garage, and maintenance tracking all work without a key at all.
NO SUBSCRIPTIONS
Four AI diagnoses and ten chat messages are free. One purchase unlocks unlimited use, forever. No ads, no recurring charges, no account to create.
WHAT YOU NEED
An OBD2 Bluetooth adapter (ELM327-compatible) and a vehicle from 1996 or later.
Manifold is a diagnostic aid, not a replacement for a professional inspection. On anything involving brakes, steering, fuel leaks, or overheating, get eyes on it.
Read your car's trouble codes and get a plain-English diagnosis from AI.
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What’s new
First public release of Manifold.
Pair any cheap ELM327 adapter to read stored and pending fault codes, check emissions readiness, and keep a mileage-linked service ledger. Codes come with plain-English definitions, and a built-in demo vehicle drives every screen with no hardware.
Manifold uses your own Google Gemini API key for the AI mechanic. Your garage stays on your device. No ads, no tracking, no subscription — live gauges and unlimited diagnoses come with one unlock, paid once.
Pair any cheap ELM327 adapter to read stored and pending fault codes, check emissions readiness, and keep a mileage-linked service ledger. Codes come with plain-English definitions, and a built-in demo vehicle drives every screen with no hardware.
Manifold uses your own Google Gemini API key for the AI mechanic. Your garage stays on your device. No ads, no tracking, no subscription — live gauges and unlimited diagnoses come with one unlock, paid once.
App support
About the developer
ARICK SANDMAN
gigaapps65@gmail.com
2740 Warzone Ave
Alpine, TX 79830-0001
United States
