Comparison

Giotto ScanTool vs Gretio

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

Gretio

This app allows advanced vehicle diagnostics and service functions for diesel, gas, electric, and hybrid cars. It analyzes thousands of data points, looks up trouble codes across all modules, and performs service regenerations and tests. Designed for DIY users, it requires specific hardware and vehicle compatibility.

Highlights
  • Advanced vehicle diagnostics
  • Analyze thousands of data points
  • Diagnostic trouble code lookup
  • Perform service functions (DPF regen, SCR tests)
  • Program vehicle features
  • Supports diesel, gas, electric, hybrid vehicles
Features
Read full description

Use Gretio with an OBDLINK MX+ to perform advanced diagnostic functions on your diesel, gas, electric, or hybrid vehicle. Analyze thousands of different data points at high speeds. Look up diagnostic trouble codes for all modules including the Engine Control Module, Chassis Control Module, Drive Motor Control Modules, Battery Energy Control modules, Body Control Module, Radio, and many more. Perform advanced service functions such as diesel particulate filter service regenerations, selective catalytic reduction tests, power relay tests, and even program some features. Gretio is an advanced tool made for the DIY market. All procedures must be used in accordance with the vehicle's service manual or other approved literature by your vehicle manufacturer. Gretio only functions on certain makes and models. Visit our website at https://surrealdev.com/gretio/ to see a list of known supported vehicles.

Screenshots

Giotto ScanTool4 screens
Gretio4 screens

Verdict

The call

The clearest difference is rating: Gretio at 3.8 against Giotto ScanTool's 3.3. Gretio also leads on review sentiment (68% vs 31%) and update cadence (monthly vs every 3 months). Giotto ScanTool's advantage is in-app purchases (none vs 4) and iOS requirement (14.0 vs 18.0). On price, ratings volume, ads and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Gretio sells 4 in-app purchases, starting at $19.99 per year. Giotto ScanTool asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Gretio holds the better App Store score, 3.8 against 3.3. Both are backed by a comparable volume of ratings — 44 and 23 respectively. Written reviews point the same way: 31% of Giotto ScanTool's written reviews are positive against 68% of Gretio's.

UpkeepUpdate frequency

Giotto ScanTool ships an update every 3 months, Gretio monthly. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

Scorecard6 real differences · 4 level
Giotto ScanTool versus Gretio: the parameters behind the verdict, then further details
ParameterGiotto ScanToolGretio
PriceFreeFree
Rating3.3 (44 ratings)3.8 (23 ratings) — better
Positive reviews30.8% of reviews68.4% of reviews — better
Number of ratings44 — better23
Update frequencyEvery 3 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.0 — better18.0
Further details — not scored
Size912 MB40 MB
Age rating4+4+
DeveloperAutoEnginuitySurreal Development LLC

Customer experience

Giotto ScanTool

All ratings44 ratings
Positive59.1%
Neutral2.3%
Negative38.6%
Written reviews13 reviews
Positive30.8%
Neutral0.0%
Negative69.2%

Gretio

All ratings23 ratings
Positive69.6%
Neutral0.0%
Negative30.4%
Written reviews19 reviews
Positive68.4%
Neutral5.3%
Negative26.3%

In-app purchases

None

Giotto ScanTool

No in-app purchases

4 purchases

Gretio

Subscriptions1
  • Gretio All Access$19.991 Year
One-time3
  • Gretio RPO Pack 1$34.99
  • Gretio RPO Pack 2$34.99
  • RPO Pack 3$34.99

Questions

Is Giotto ScanTool free?
Giotto ScanTool is free to download, with no in-app purchases.
Is Gretio free?
Gretio is free to download, with in-app purchases available.
Which has better reviews, Giotto ScanTool or Gretio?
Gretio is rated higher. Giotto ScanTool averages 3.3 out of 5 from 44 ratings, while Gretio averages 3.8 from 23 ratings.
Do Giotto ScanTool or Gretio have ads?
Neither Giotto ScanTool nor Gretio shows ads.
Which is updated more often, Giotto ScanTool or Gretio?
Giotto ScanTool ships an update every 3 months, and Gretio monthly. Most recently, Giotto ScanTool was updated on October 24, 2026 and Gretio on October 29, 2026.

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