Comparison

OBDeleven VAG vs StringAlignPro

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

Head to head
About

OBDeleven VAG

Transform your smartphone into a powerful car diagnostic tool. Easily scan, diagnose, and customize your vehicle's settings. Access advanced features like coding and live data to save time and money on car maintenance.

Highlights
  • Advanced diagnostics
  • Coding and adaptations
  • Output tests
  • Live data monitoring
  • One-Click Apps for customization
  • Basic OBD2 diagnostics
Features
Read full description

OBDeleven VAG is now part of the main OBDeleven app. We’ve moved most features, updates, and new functionality to the OBDeleven app – so you can manage all supported brands in one place. If you're new here, we recommend downloading the OBDeleven app instead. WHY SWITCH TO OBDELEVEN APP • One app for all supported brands (Volkswagen, BMW, Toyota, Mercedes-Benz Groups, Ford US models) • Faster performance and more stable connection • Regular updates with new features and improvements • Built with the latest security and vehicle access standards • Same diagnostics, coding, and One-Click Apps experience USE THIS APP IF: • You have a Volkswagen Group vehicle with K-line support (typically older models, around 2008 or earlier) • You have a Lifetime VAG PRO plan • You have an OBDeleven 1 (FirstGen) device For all other use cases, download the OBDeleven app.

About

StringAlignPro

Features
Read full description

String Align Pro turns the proven string-box method into a fast, accurate alignment tool you can use right at the car — no laptop, no rig, no internet. Enter the distances you measure from the string to the front and rear of each rim, and String Align Pro does the geometry for you: per-wheel toe, total toe per axle, and the rear thrust angle relative to the car's chassis centreline. Because it works from the centreline, it reveals crabbing that front-and-rear-only numbers can hide — so the car runs true, not just "aligned." KEY FEATURES - Toe, total toe and thrust angle, calculated from simple rim measurements - Thrust angle referenced to the chassis centreline - Camber recorded per corner - Work in your units: enter distances in millimetres or inches; read toe in mm, inches or degrees - Before & After: capture a baseline, make changes, compare side by side - Clean PDF reports in your chosen units — for the car's file or the customer - Save jobs by name and reopen them any time - Fully offline — everything runs and stays on your device - No account, no sign-up, no tracking - Universal: works on iPhone and iPad BUILT FOR THE PADDOCK Whether you're setting up a track-day car in the garage or making changes between sessions, String Align Pro keeps the numbers you act on the same as the numbers you measured — and keeps a record you can share. IMPORTANT String Align Pro provides guidance based on the measurements you enter. Always verify your inputs and check results against your own engineering judgement and the vehicle manufacturer's specification. Wheel alignment affects vehicle handling and safety — setup decisions are yours. Published by RaceTracs Ltd.

Screenshots

OBDeleven VAG3 screens
StringAlignPro4 screens

Verdict

The call

The clearest difference is price: OBDeleven VAG at Free against StringAlignPro's $9.99. StringAlignPro's advantage is in-app purchases (none vs 13). On update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

OBDeleven VAG is free to download; StringAlignPro costs $9.99 up front. OBDeleven VAG sells 13 one-off in-app purchases. StringAlignPro asks for nothing beyond the download.

UpkeepUpdate frequency

OBDeleven VAG ships an update every 3 weeks, StringAlignPro every 2 weeks. The most recent releases landed on October 11, 2026 and September 21, 2026 respectively.

Scorecard2 real differences · 8 level
OBDeleven VAG versus StringAlignPro: the parameters behind the verdict, then further details
ParameterOBDeleven VAGStringAlignPro
PriceFree — better$9.99
Rating4.5 (7K ratings) — better—
Positive reviews26.6% of reviews—
Number of ratings7K — better—
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size232 MB2 MB
Age rating4+4+
DeveloperOBDeleven UABRaceTracs Ltd

Bugs and requests

OBDeleven VAG

Reported bugs

5 issues
  • App crashes and freezes frequently
  • Fails to connect to vehicle modules
  • Coding changes not working as expected
  • Losing purchased credits without explanation
  • Incompatible with newer vehicle models

Requested features

5 requests
  • Add long coding and adaptation functionality
  • Improve user interface and translations
  • Provide more free credits or a one-time purchase option
  • Improve compatibility with a wider range of vehicles
  • Add data logging and live data monitoring features

StringAlignPro

Not enough reviews yet to summarise bugs or requests.

In-app purchases

13 purchases

OBDeleven VAG

One-time13
  • 10 Credits (-30%)$2.09
  • Credits x10$3.99
  • 100 Credits (-30%)$16.49
Show 10 more
  • Credits x100$29.99
  • 1000 Shadowing Credits$34.99
  • Pro subscription (-30%)$45.49
  • 500 Credits (-30%)$69.99
  • Pro subscription$69.99
  • Credits x500$90.99
  • Ultimate subscription (-30%)$125.99
  • 5000 Shadowing Credits$139.99
  • Ultimate subscription$239.99
  • 10000 Shadowing Credits$269.99
None

StringAlignPro

No in-app purchases

Questions

Is OBDeleven VAG free?
OBDeleven VAG is free to download, with in-app purchases available.
Is StringAlignPro free?
StringAlignPro costs $9.99, with no in-app purchases.
Do OBDeleven VAG or StringAlignPro have ads?
Neither OBDeleven VAG nor StringAlignPro shows ads.
Which is updated more often, OBDeleven VAG or StringAlignPro?
OBDeleven VAG ships an update every 3 weeks, and StringAlignPro every 2 weeks. Most recently, OBDeleven VAG was updated on October 11, 2026 and StringAlignPro on September 21, 2026.

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