Comparison

MaxiAP vs Gyraline

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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

About

Gyraline

This app transforms your smartphone and a specialized toolkit into a professional-grade wheel alignment system. It enables fast, accurate 4-wheel alignments for enthusiasts and DIYers in their own garage, offering precise measurements for various alignment angles.

Highlights
  • Precision 4-wheel alignment
  • Measure total toe (front & rear)
  • Thrust line comparison
  • Camber measurement and adjustment
  • Caster sweep
  • Ackermann visualization
Features
Read full description

Precision 4-Wheel Alignment, Reimagined Gyraline is a revolutionary, patent-pending alignment system that turns your smartphone and our precision toolkit into a professional-grade wheel alignment machine. Perform the fastest, most accurate 4-wheel alignment you’ve ever done, right in your own garage. Measure Like a Pro • Total Toe (Front & Rear): Instantly measure total toe across both axles. • Thrust Line Comparison: Verify front toe alignment relative to the rear axle’s thrust line. • Body Centerline Alignment: Check toe against the vehicle’s geometric centerline. • Camber Mode: Measure and adjust camber with live digital precision. • Caster Mode: Sweep caster accurately, without expensive shop hardware. • Ackermann Mode: Visualize steering geometry like never before. Why Gyraline Gyraline brings professional alignment accuracy to enthusiasts, racers, and commuters without the need for bulky alignment racks. Fast setup, clear visuals, and uncompromising precision all powered by your phone.

Screenshots

MaxiAP4 screens
Gyraline4 screens

Verdict

The call

The clearest difference is rating: Gyraline at 3.8 against MaxiAP's 3.1. Gyraline also leads on review sentiment (61% vs 33%) and ratings volume (101 vs 7). MaxiAP's advantage is in-app purchases (none vs 9) and iOS requirement (8.0 vs 15.0). On price, update cadence, 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. Gyraline sells 9 in-app purchases, starting at $7.99 per 7 days. MaxiAP asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Gyraline holds the better App Store score, 3.8 against 3.1. That said, the two scores are not equally well evidenced: Gyraline has 101 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 33% of MaxiAP's written reviews are positive against 61% of Gyraline's.

UpkeepUpdate frequency

MaxiAP ships an update every 3 weeks, Gyraline fortnightly. The most recent releases landed on October 20, 2026 and October 25, 2026 respectively.

Scorecard6 real differences · 4 level
MaxiAP versus Gyraline: the parameters behind the verdict, then further details
ParameterMaxiAPGyraline
PriceFreeFree
Rating3.1 (7 ratings)3.8 (101 ratings) — better
Positive reviews33.3% of reviews60.7% of reviews — better
Number of ratings7101 — better
Update frequencyEvery 3 weeksFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterPaid
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS8.0 — better15.0
Further details — not scored
Size30 MB63 MB
Age rating4+4+
DeveloperAutel Intelligent Technology Co., Ltd.Mechly LLC

Customer experience

MaxiAP

All ratings7 ratings
Positive57.1%
Neutral0.0%
Negative42.9%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

Gyraline

All ratings101 ratings
Positive67.3%
Neutral5.0%
Negative27.7%
Written reviews84 reviews
Positive60.7%
Neutral7.1%
Negative32.1%

Bugs and requests

MaxiAP

Not enough reviews yet to summarise bugs or requests.

Gyraline

Reported bugs

16 issues
  • Inconsistent measurements
  • App crashes
  • Sensor axis reversed (G2)
  • Accuracy defaults revert to 0.10°
  • Camber tool unreliable
Show 11 more
  • Manual/videos do not match current app design
  • Front toe readings inaccurate after update
  • Body align function removed for G1
  • Surface profile percentage not visible
  • Buggy app renders G2 unusable
  • Previous update was better, new update makes it impossible to get accurate results
  • G1 owners don't get vehicle spec access
  • Body alignment of front toe removed
  • Front toe readings inaccurate
  • App requires refresh with red screen when moving to front wheel
  • Inconsistent readings even after adjustments

Requested features

7 requests
  • Add caster to features
  • Live measurements via Bluetooth sensors
  • Separate toe-only section for quicker adjustments
  • Self-calibration setting
  • Vehicle spec database for G1 owners
Show 2 more
  • Update tutorials to match current app version
  • Dark mode text display fix

In-app purchases

None

MaxiAP

No in-app purchases

9 purchases

Gyraline

Subscriptions3
  • Gyraline DIY One Week3 Days trial$7.997 Days
  • Gyraline DIY One Month$9.991 Month
  • Quick Check Single Device1 Month trial$99.991 Month
One-time6
  • TrialFree
  • Single Token Purchase$0.99
  • Five Token Purchase$3.99
Show 3 more
  • Weekend Pass$5.99
  • One Time Subscription$69.99
  • Gyraline Pro$399.99

Questions

Is MaxiAP free?
MaxiAP is free to download, with no in-app purchases.
Is Gyraline free?
Gyraline is free to download, with in-app purchases available.
Which has better reviews, MaxiAP or Gyraline?
Gyraline is rated higher. MaxiAP averages 3.1 out of 5 from 7 ratings, while Gyraline averages 3.8 from 101 ratings.
Do MaxiAP or Gyraline have ads?
Neither MaxiAP nor Gyraline shows ads.
Which is updated more often, MaxiAP or Gyraline?
MaxiAP ships an update every 3 weeks, and Gyraline fortnightly. Most recently, MaxiAP was updated on October 20, 2026 and Gyraline on October 25, 2026.

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