OBDMap vs AutoChemai
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OBDMap
This professional automotive tool offers comprehensive solutions for immobilizer systems, enabling key and remote programming, password reading, and module matching. It's designed for automotive professionals, from beginners to experts, providing quick and secure services for a wide range of vehicles.
- Automotive key coding
- Immobilizer solutions
- Key and remote programming
- Password reading
- Module matching
- Intuitive interface
- Expandable memory
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The equipment that revolutionized the automotive key coding concept, more complete for automotive immobilizer solutions! Obdmap is the most complete equipment on the market and has been specially developed for all automotive professionals, including beginners! Our equipment has immobilizer solutions quickly and safely. With the Obdmap loads, it is possible to perform various types of services such as: programming keys and remote controls, including presence keys, reading passwords, matching between modules and with different transponder technologies. Due to the range of brands, models and services provided, Obdmap is the equipment that serves the largest fleet of national vehicles and the most sought after by the Brazilian and South American market. In addition, it can be updated quickly over the internet, via a USB port on the computer. Advantages of investing in Obdmap: • Speed at work: the device was developed to perform the services as quickly as possible and with the greatest security; • Simplicity: equipment aimed at the agility of services, with a very intuitive interface, making it practical; • High durability: Obdmap was developed to have a durability of up to 15 years; • Expandable memory: without the need to replace the machine or add an “external” memory; • Updates: on average every two months and all via USB; • Application: it has the widest range of national vehicles; Bluetooth technology! Connected to the application, our Obdmap equipment gains increments of functionality and facilities at the time of use, making your equipment much easier to use. • Access code: automation in the security process of your equipment created by Chiptronic; • Spend only what to use: pay only for that and use it, with a new credit system • Buy credits yourself: there is now the possibility to buy credits from the app itself • Complete history: have access to the history of your equipment, being able to know when you performed each function • List of loads: have full visibility of the functions it has and how many times it has been executed in each type of execution (web, play) • PlayService: have access to exclusive functions on the market in the business format (pay what you use), being able to perform your functions without the need for internet! • WebService: have access to exclusive functions executed remotely
AutoChemai
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For car buyers, not mechanics. Flood damage, bodywork, paint jobs—you can spot those at a glance if you’ve been buying cars for a while. But what’s inside the car’s computer? That’s the one thing you can’t see—and missing it can cost you thousands. With AutoChemai and a compatible Bluetooth Low Energy (BLE) OBD adapter, the computer’s data is explained in plain language you can actually understand. ■ What it tells you ・Whether this car has any trouble codes that can’t be cleared (Clearing codes or disconnecting the battery won’t erase these, so they can’t just be “reset” and hidden) ・If the computer was recently reset (Self-checks completed, distance recorded since codes were cleared, and codes stored without the data saved at the moment of the fault. These signs cannot tell clearing codes apart from disconnecting the battery) ・Pending issues the computer has already logged, even if the warning light isn’t on yet ・Whether the VIN in the computer matches the car in front of you ■ What it won’t do ・It explains results in plain language instead of giving only a code or technical terms (Technical details are kept in a “for mechanics” section you don’t need to open) ・It won’t tell you to replace parts or guess how much repairs might cost —Guessing wrong could make you pay the wrong price, so we don’t guess ・It won’t clear codes or change any vehicle settings. Read only, never write. ■ What it can’t check (please read this part) Standard OBD-II only covers engine and emissions data. Airbags, ABS, accident history, flood damage, mileage accuracy—this app does not check any of those. The report has a section listing what wasn’t checked this time, and you can’t hide that section—because “no problems found” doesn’t mean “no problems.” ■ If we can’t tell the difference between “not present” and “couldn’t check,” we don’t make a call A bad receiver might return a blank answer when it can’t read permanent trouble codes. If you treat that as “this car has none,” the report looks clean, and you end up buying a problem car. So we always write these three things separately: Found and it’s not there / Receiver couldn’t read / This car doesn’t provide it. ■ Don’t have a receiver yet? You can tap “View sample reports” right away and see what a report looks like with demo data— no hardware needed. ■ Reading rules update automatically The app downloads reading rules for more makes and models from autochemai.com, so you don’t need to update the app for that. It does not send vehicle data, VINs, diagnostic results or device identifiers. ■ What you need A Bluetooth Low Energy (BLE) OBD-II adapter compatible with the app (sold separately, not through the app). The car must be OBD-II compatible; the data available depends on the vehicle. ■ Subscription Features are provided by auto-renewing subscription (monthly or yearly, price shown at checkout). New subscribers get a 3-day free trial; cancel at least 24 hours before it ends and you won’t be charged. Subscription renews automatically; you can cancel anytime in “Settings → Apple ID → Subscriptions.” Terms of Service: https://autochemai.com/terms Privacy Policy: https://autochemai.com/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: OBDMap at none against AutoChemai's 4. AutoChemai's advantage is update cadence (every 2 days vs every 2 months). 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. AutoChemai sells 4 in-app purchases, starting at $9.99 per month. OBDMap asks for nothing beyond the download.
OBDMap ships an update every 2 months, AutoChemai every 2 days. The most recent releases landed on October 24, 2026 and October 11, 2026 respectively.
| Parameter | OBDMap | AutoChemai |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| Update frequency | Every 2 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.6 | 16.0 — better |
| Further details — not scored | ||
| Size | 70 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Chiptronic Eletronica do Brasil Ltda | KUO WEI Tseng |
In-app purchases
OBDMap
No in-app purchases
AutoChemai
- Standard – Monthly3 Days trial$9.991 Month
- Pro – Monthly3 Days trial$49.991 Month
- Standard – Yearly3 Days trial$99.991 Year
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- Pro – Yearly3 Days trial$499.991 Year









