# Auto Bounds vs ShiftLock

The clearest difference is rating: ShiftLock at 3.2 against Auto Bounds's 2.5. ShiftLock also leads on update cadence (every 5 months vs every 20 months) and chart position (#58 vs unranked). Auto Bounds's advantage is ads (none vs shown) and review sentiment (67% vs 35%). On in-app purchases, device support and iOS requirement there is nothing between them.

Auto Bounds costs $4.99 and ShiftLock $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ShiftLock holds the better App Store score, 3.2 against 2.5. That said, the two scores are not equally well evidenced: ShiftLock has 41 ratings behind it against 6, so its average is the more settled of the two. Written reviews complicate that: 67% of Auto Bounds's written reviews are positive against 35% of ShiftLock's, so the app with the better star average is not the one people write more warmly about.

Auto Bounds ships an update every 20 months, ShiftLock every 5 months. The most recent releases landed on October 7, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Auto Bounds | ShiftLock |
| --- | --- | --- |
| Price | **$4.99** | $6.99 |
| Rating | [2.5 (6 ratings)](https://appshunter.io/ios/app/auto-bounds-car-specs/id1004054549/reviews) | **[3.2 (41 ratings)](https://appshunter.io/ios/app/shiftlock/id1080928307/reviews)** |
| Number of ratings | 6 | **41** |
| Positive reviews | **66.7% of reviews** | 35.1% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 20 months | **Every 5 months** |
| Monetization | Paid | **Ad-supported** |
| Best chart rank | — | **#58** |
| Size | 24 MB | 55 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [HourLink](https://appshunter.io/developer/963534163) | [Mark Knowles](https://appshunter.io/developer/1080928306) |

## What reviewers say

### Auto Bounds

[App page](https://appshunter.io/ios/app/auto-bounds-car-specs/id1004054549)

Access detailed specifications for over 25,000 vehicles, including weight, dimensions, and track widths. Quickly find and interpret data for both classic and modern cars.

**Highlights:** Vehicle weight data, Length, height, and track width, Weight distribution information, Specs for 25,000+ automobiles, Data for early and late model vehicles

**Features:** macOS Compatibility

**In-app purchases:** none


### ShiftLock

[App page](https://appshunter.io/ios/app/shiftlock/id1080928307)

**Currently charting:** #58 Top Paid · Reference (US App Store)

Access a vast database of vehicle electronic shift information for models from 1985 to the present. Quickly find solutions to avoid towing, reduce vehicle damage, and save time roadside. Content is updated regularly for accuracy.

**Highlights:** Extensive vehicle model database, USA, European, and foreign models, 1985 to current electronic shifts, Reduce towing and vehicle damage, Save release information offline, Fast learning curve

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Auto Bounds free?

Auto Bounds costs $4.99, with no in-app purchases.

### Is ShiftLock free?

ShiftLock costs $6.99, with no in-app purchases.

### Which has better reviews, Auto Bounds or ShiftLock?

ShiftLock is rated higher. Auto Bounds averages 2.5 out of 5 from 6 ratings, while ShiftLock averages 3.2 from 41 ratings.

### Do Auto Bounds or ShiftLock have ads?

ShiftLock shows ads; Auto Bounds does not.

### Which is updated more often, Auto Bounds or ShiftLock?

Auto Bounds ships an update every 20 months, and ShiftLock every 5 months. Most recently, Auto Bounds was updated on October 7, 2026 and ShiftLock on October 17, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*