Comparison

Gretio vs Rig Mechanic

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 enables advanced vehicle diagnostics and service functions for General Motors vehicles using an OBDLINK MX+ device. It analyzes data points, looks up trouble codes, and performs service procedures like DPF regenerations.

Highlights
  • Advanced diagnostic functions
  • Analyze thousands of data points
  • Look up diagnostic trouble codes
  • Perform advanced service functions
  • Exclusive for General Motors 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 OEM approved literature. Gretio is made exclusively for General Motors vehicles. Additional models will be supported in the future.

About

Rig Mechanic

This app connects drivers and mechanics for maintenance and repair services. It allows mechanics to respond to service requests, track progress, and handle transactions securely within the application.

Highlights
  • Respond to service requests
  • Send offers for repairs
  • Real-time service tracking
  • In-app payment processing
  • Secure transaction guarantee
  • Digital invoicing
Features
Read full description

Transforming maintenance and repair. The RIG app easily connects drivers and mechanics when things get complicated. Respond to requests and send offers, track progress, and complete the transaction in the app. SIMPLE SERVICE RESPONSE Whether it is urgent or planned maintenance, respond to it all on the app. Send offers for tire changes, towing, or mobile service. You can even send offers through the app for requests that come in by phone. REAL-TIME TRACKING Easily identify the service point and follow the navigation to where you need to go. Notify the driver when you arrive and when service is complete. EASY TRANSACTING Drivers receive detailed invoices when work is complete and payment is made via the app. Rig holds the agreed invoice amount until service completion to guarantee a secure transaction. Visit bigrig.app for more information!

Screenshots

Gretio4 screens
Rig Mechanic3 screens

Verdict

The call

The clearest difference is in-app purchases: Rig Mechanic at none against Gretio's 4. Rig Mechanic also leads on iOS requirement (16.6 vs 18.0). On price, rating, review sentiment and ratings volume 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. Rig Mechanic asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 3.9 for Gretio against 3.9 for Rig Mechanic. Both are backed by a comparable volume of ratings — 22 and 18 respectively. Written reviews are what separate them: 72% of Gretio's written reviews are positive against 67% of Rig Mechanic's.

UpkeepUpdate frequency

Gretio ships an update every 3 weeks, Rig Mechanic monthly. The most recent releases landed on August 15, 2026 and August 27, 2026 respectively.

Scorecard3 real differences · 7 level
Gretio versus Rig Mechanic: the parameters behind the verdict, then further details
ParameterGretioRig Mechanic
PriceFreeFree
Rating3.9 (22 ratings) — better3.9 (18 ratings)
Positive reviews72.2% of reviews — better66.7% of reviews
Number of ratings22 — better18
Update frequencyEvery 3 weeks — betterMonthly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad — betteriPhone
Requires iOS18.016.6 — better
Further details — not scored
Size40 MB121 MB
Age rating4+4+
DeveloperSurreal Development LLCRig Technologies, Inc

Customer experience

Gretio

All ratings22 ratings
Positive72.7%
Neutral0.0%
Negative27.3%
Written reviews18 reviews
Positive72.2%
Neutral5.6%
Negative22.2%

Rig Mechanic

All ratings16 ratings
Positive81.3%
Neutral0.0%
Negative18.8%
Written reviews9 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

4 purchases

Gretio

Subscriptions1
  • Gretio All Access$19.991 Year
One-time3
  • Gretio RPO Pack 1$29.99
  • Gretio RPO Pack 2$29.99
  • RPO Pack 3$29.99
None

Rig Mechanic

No in-app purchases

Questions

Is Gretio free?
Gretio is free to download, with in-app purchases available.
Is Rig Mechanic free?
Rig Mechanic is free to download, with no in-app purchases.
Which has better reviews, Gretio or Rig Mechanic?
Gretio is rated higher. Gretio averages 3.9 out of 5 from 22 ratings, while Rig Mechanic averages 3.9 from 18 ratings.
Do Gretio or Rig Mechanic have ads?
Neither Gretio nor Rig Mechanic shows ads.
Which is updated more often, Gretio or Rig Mechanic?
Gretio ships an update every 3 weeks, and Rig Mechanic monthly. Most recently, Gretio was updated on August 15, 2026 and Rig Mechanic on August 27, 2026.

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