Comparison

Bolt Length vs AutoTrack Driver

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

Head to head
About

Bolt Length

This application helps calculate the length of metric coarse screws based on Japanese Industrial Standards. It is designed for mechanical design purposes and should be used at the user's own risk.

Highlights
  • Metric coarse screw length calculation
  • Conforms to Japanese Industrial Standards (JIS)
  • Designed for mechanical design
  • User risk disclaimer
Features
Read full description

This app is an application for calculating the length of the screw. ※:This app does not guarantee the effectiveness of the combination. ※:Use this application at your own risk. Conforms to the Japanese Industrial Standards (JIS). Screws are all metric coarse screw. For mechanical design. Sorry, Only in Japan.Because using the JIS.

About

AutoTrack Driver

Streamline vehicle inspections with digital checklists and photo evidence. Easily manage daily reports, track expenses, and ensure vehicle efficiency through regular, paperless checks. Facilitates pre and post-trip inspections with digital signatures.

Highlights
  • Digital inspection checklists
  • Photo evidence capture
  • Expense tracking
  • Pre and post-trip classification
  • Digital signatures
  • Paperless reporting
Features
Read full description

AutoTrack Driver A checklist is created on the AutoTrack platform, allowing the driver to move around the vehicle and complete the inspection. The driver can also take a photograph of any affected area as evidence. This helps you know which vehicle requires replacement or repair. These reports can be downloaded or shared if necessary. Paperless inspection is possible with AutoTrack. Easily manage the daily inspection report. Easy inspection With the help of the checklist and snapshot function, the inspection becomes easier for the driver. Facilitate your report with multiple images. Signature of your mechanic, driver and carrier with each inspection. It classifies your pre and post trip inspection. Increase vehicle efficiency When vehicles are regularly inspected, the chances of wear and tear are reduced. Easy spending -Add the expenses of the vehicle that was assigned to you. -List of Complete Expenses made by you. Increase the efficiency and performance of your paperless, real-time vehicle inspection.

Screenshots

Bolt Length4 screens
AutoTrack Driver4 screens

Verdict

The call

The clearest difference is rating: AutoTrack Driver at 5.0 against Bolt Length's 3.0. AutoTrack Driver also leads on in-app purchases (none vs 1) and ads (none vs shown). On price, ratings volume, update cadence 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. Bolt Length sells 1 one-off in-app purchase. AutoTrack Driver asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

AutoTrack Driver holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 20 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard4 real differences · 6 level
Bolt Length versus AutoTrack Driver: the parameters behind the verdict, then further details
ParameterBolt LengthAutoTrack Driver
PriceFreeFree
Rating3.0 (2 ratings)5.0 (1 ratings) — better
Positive reviews33.3% of reviews—
Number of ratings2 — better1
Update frequencyEvery 20 monthsEvery 20 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15.0
Further details — not scored
Size6 MB49 MB
Age rating4+4+
Developermitsunori oishiEnmanuel Andres Requena Abreu

Customer experience

Bolt Length

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews3 reviews
Positive33.3%
Neutral66.7%
Negative0.0%

AutoTrack Driver

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Bolt Length

One-time1
  • Hide Ads$1.99
None

AutoTrack Driver

No in-app purchases

Questions

Is Bolt Length free?
Bolt Length is free to download, with in-app purchases available.
Is AutoTrack Driver free?
AutoTrack Driver is free to download, with no in-app purchases.
Which has better reviews, Bolt Length or AutoTrack Driver?
AutoTrack Driver is rated higher. Bolt Length averages 3.0 out of 5 from 2 ratings, while AutoTrack Driver averages 5.0 from 1 ratings.
Do Bolt Length or AutoTrack Driver have ads?
Bolt Length shows ads; AutoTrack Driver does not.
Which is updated more often, Bolt Length or AutoTrack Driver?
Bolt Length ships an update every 20 months, and AutoTrack Driver every 20 months. Most recently, Bolt Length was updated on November 2, 2026 and AutoTrack Driver on November 3, 2026.

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