MaxiAP vs Giotto ScanTool
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MaxiAP
Transform your iPhone into a powerful vehicle diagnostic tool. This app, paired with a Bluetooth OBDII connector, allows you to monitor your engine system, read and clear diagnostic codes, and generate repair reports for easy vehicle maintenance.
- Works on all 1996+ vehicles
- Supports all 10 OBDII test modes
- Reads and clears engine codes
- Checks system readiness
- Generates repair reports
- Graphs live system data
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Autel presents the new MaxiAP AP100 to make your iPhone devices into a powerful diagnostic tool. The MaxiAP AP100 package comes with a Bluetooth OBDII connector and a free app, through which you can monitor the engine system to ensure the performance of your vehicle. It is the perfect DIY tool for customers looking for easy and fast OBDII diagnostic functions. Features: ●Works on ALL 1996 and newer European, Asian, and U.S. vehicles (OBDII & CAN) ●Supports all 10 test modes of OBDII ●Reads & clears stored, permanent, pending codes for Engine system ●Reads & clears manufacture specific codes for GM, Ford, Chrysler ●Checks the readiness of the monitoring system ●Views the results of On-Board Monitor tests ●Generates repair reports for test vehicle ●Graphs system live data ●Views freeze frame data ●Displays the VIN, CVN and other information of the test vehicle ●Checks the status of the MIL and other additional information
Giotto ScanTool
This professional-grade automotive diagnostic tool provides extensive vehicle coverage and deep system access. It helps repair shops and fleet managers quickly service a wide range of vehicles with features like live data, bi-directional controls, and DTC reporting.
- Professional-grade enhanced coverage
- Access to ABS, airbag, powertrain, and more
- Live data and bi-directional controls
- Adaptive resets and learns
- DTC report output (XML/PDF)
- Graphing with pan and zoom
- WIFI connectivity
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Requires an AutoEnginuity Proline VCI WIFI, available for purchase at www.AutoEnginuity.com. Does not support other hardware. Coverage, coverage, coverage. In the professional repair business getting as much coverage as you can is important to effectively and quickly service any vehicle. We offer professional-grade enhanced coverage options for 58 carmakers. It’s not just the breadth of coverage that’s important—it’s also the depth of coverage. With our enhanced expansions you can have access to ABS, airbag, enhanced powertrain, instrument cluster, transmission, and dozens of other body and chassis controllers. The depth of coverage consists of live data, bi-directional controls, adaptive resets and learns, system tests, and trouble code retrieval and clearing. Whether your a fleet manager, independant repair shop, or a collision repair shop, Giotto will help repair more vehicles quickly and effectively. Powerful features include: DTC report output (XML / PDF), Mode 6 translations, graphing with pan and zoom, integrated FF and FFD (odometer, fault frequency, etc.) with DTC reports, and easy to use WIFI connectivity. *NOTE* Enhanced coverage requires activated ProLine hardware.
Screenshots
Verdict
The clearest difference is update cadence: MaxiAP at every 3 weeks against Giotto ScanTool's every 3 months. MaxiAP also leads on iOS requirement (8.0 vs 14.0). Giotto ScanTool's advantage is ratings volume (44 vs 7). On price, rating, review sentiment and ads 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. Neither carries in-app purchases, so what you see is what you pay.
Giotto ScanTool holds the better App Store score, 3.3 against 3.1. That said, the two scores are not equally well evidenced: Giotto ScanTool has 44 ratings behind it against 7, so its average is the more settled of the two. Written reviews complicate that: 33% of MaxiAP's written reviews are positive against 31% of Giotto ScanTool's, so the app with the better star average is not the one people write more warmly about.
MaxiAP ships an update every 3 weeks, Giotto ScanTool every 3 months. The most recent releases landed on October 11, 2026 and October 14, 2026 respectively.
| Parameter | MaxiAP | Giotto ScanTool |
|---|---|---|
| Price | Free | Free |
| Rating | 3.1 (7 ratings) | 3.3 (44 ratings) — better |
| Positive reviews | 33.3% of reviews — better | 30.8% of reviews |
| Number of ratings | 7 | 44 — better |
| Update frequency | Every 3 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 30 MB | 912 MB |
| Age rating | 4+ | 4+ |
| Developer | Autel Intelligent Technology Co., Ltd. | AutoEnginuity |
Customer experience
MaxiAP
Giotto ScanTool
In-app purchases
MaxiAP
No in-app purchases
Giotto ScanTool
No in-app purchases









