Comparison

Gretio vs GateKeyper

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

Head to head
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.

About

GateKeyper

Features
Read full description

GateKeyper is a powerful but easy-to-use hardware + front- & back-end software solution for securing vehicles and other equipment against unsafe and unauthorized operation. This scalable system is ideal for any size company that utilizes personnel and equipment. GateKeyper's patented operator authorization system provides invaluable benefits. Before each time an operator that is authorized by your company can access the equipment, the GateKeyper system requires the operator to answer questions on the GateKeyper mobile app that you have created and assigned to the equipment and operator via the system's intuitive backend management platform. If and only if the questions are successfully answered will the Bluetooth-enabled "GateKeyper Interlock" hardware device unlock the asset for use (i.e., allow the ignition to be started). These app-based "tests" on a phone or tablet ensure that the operator is properly qualified and in a proper state to operate the equipment, thus helping to ensure the operator's safety and protect your company's legal and financial well-being. GateKeyper can also simply be used as a security system to make sure an unauthorized person is not able to use or steal your assets. You will have a detailed log on the management platform of all equipment access to easily verify that only authorized, trained, and/or properly ready operators have been using your equipment. Whether your company utilizes specialized construction or utility equipment or is simply moving freight, the easy to install, set up, and learn GateKeyper system is a great way to protect people, assets, and your company.

Screenshots

Gretio4 screens
GateKeyper3 screens

Verdict

The call

The clearest difference is in-app purchases: GateKeyper at none against Gretio's 4. GateKeyper also leads on iOS requirement (12.0 vs 18.0). Gretio's advantage is update cadence (monthly vs every 7 months). On price, 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. GateKeyper asks for nothing beyond the download.

UpkeepUpdate frequency

Gretio ships an update monthly, GateKeyper every 7 months. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 7 level
Gretio versus GateKeyper: the parameters behind the verdict, then further details
ParameterGretioGateKeyper
PriceFreeFree
Rating3.8 (23 ratings) — better—
Positive reviews68.4% of reviews—
Number of ratings23 — better—
Update frequencyMonthly — betterEvery 7 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.012.0 — better
Further details — not scored
Size40 MB53 MB
Age rating4+4+
DeveloperSurreal Development LLCGateKeyper Solutions Inc

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
None

GateKeyper

No in-app purchases

Questions

Is Gretio free?
Gretio is free to download, with in-app purchases available.
Is GateKeyper free?
GateKeyper is free to download, with no in-app purchases.
Do Gretio or GateKeyper have ads?
Neither Gretio nor GateKeyper shows ads.
Which is updated more often, Gretio or GateKeyper?
Gretio ships an update monthly, and GateKeyper every 7 months. Most recently, Gretio was updated on November 3, 2026 and GateKeyper on October 25, 2026.

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