BimmerUtility vs BuildSpec
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BimmerUtility
A lightweight tool for editing vehicle configuration files like FDL, NCD, and FA. It allows users to save diagnostic reports and compare different vehicle software versions.
- Edit FDL, NCD, & FA files
- Save diagnostic reports
- Compare SVT & NCD files
- Lightweight toolset
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A simple lightweight toolset to help you edit your FDL, NCD & FA files. Save diagnostic reports, compare SVT & NCD files & more.
BuildSpec
Easily track, organize, and showcase your car modification projects. Log parts, costs, and installation details for multiple vehicles in a structured, searchable garage. Designed for car builders and modifiers to maintain a complete build history.
- Track modifications and parts
- Log costs and installation details
- Maintain build history
- Create multiple vehicle profiles
- Store specifications and photos
- Organized garage dashboard
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BuildSpec is the ultimate app for tracking, organizing, and showcasing your car builds. Whether you're modifying a daily driver, building a track car, or restoring a classic, BuildSpec keeps everything in one place. KEY FEATURES Track Modifications • Log parts, upgrades, and changes • Record costs and installation details • Maintain a complete build history Vehicle Profiles • Create builds for multiple vehicles • Store specifications and photos • Track mileage and vehicle details Organized Garage • Manage all builds from one dashboard • Quickly access vehicle information • Keep everything structured and searchable Designed for Enthusiasts • Clean, fast, and distraction-free interface • Built specifically for car builders and modifiers BuildSpec makes it easy to track your progress and showcase your builds.
Screenshots
Verdict
The clearest difference is review sentiment: BuildSpec at 100% against BimmerUtility's 20%. BuildSpec also leads on rating (5.0 vs 3.9). BimmerUtility's advantage is ratings volume (38 vs 1) and device support (3 vs 1). On price, update cadence, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
BuildSpec holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: BimmerUtility has 38 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 20% of BimmerUtility's written reviews are positive against 100% of BuildSpec's.
BimmerUtility ships an update every 2 months, BuildSpec every 3 months. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.
| Parameter | BimmerUtility | BuildSpec |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (38 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 20.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 38 — better | 1 |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 193 MB | 11 MB |
| Age rating | 4+ | 9+ |
| Developer | Robert Hebb | Grant Johnson |
Customer experience
BimmerUtility
BuildSpec
In-app purchases
BimmerUtility
No in-app purchases
BuildSpec
No in-app purchases
