TrueAuth vs SpecScan VIN Decoder
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TrueAuth
This utility app offers secure and private authorization processes. It focuses on providing a safe way to manage authentication flows.
- Secure authorization flows
- Private authentication
- User authentication management
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TrueAuth provides secure & private authorization flows.
SpecScan VIN Decoder
Instantly determine a car's real market value using its VIN. Decode year, make, model, and factory options, then compare against live dealer listings. Ideal for buyers, sellers, enthusiasts, and dealers.
- Real market value with confidence rating
- Comparable listings with prices and links
- Deal analysis and offer price suggestions
- Factory options decoded from VIN
- Buyer guidance and negotiation tips
- VIN scanning via door-jamb barcode
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SpecScan tells you what a car is actually worth — instantly, from its VIN, priced against the live market instead of generic book values. Enter any VIN (or scan the door-jamb barcode) and SpecScan decodes the exact year, make, model, trim, and factory options, then values it against real dealer listings for the same car — the way a seasoned dealer prices inventory. Built by an exotic and performance car dealer, SpecScan is tuned for the vehicles mainstream valuation tools get wrong: Porsche, Ferrari, Lamborghini, McLaren, Corvette, Shelby and other performance and collector cars, where options, mileage, and trim can swing value by tens of thousands of dollars. WHAT YOU GET • Real market value with a confidence-rated price range • Comparable listings — actual cars for sale now, with prices, mileage, and links • Deal analysis — enter an asking price and see if it's a good, fair, or over-market deal • What to offer — accept / target / aggressive price points, plus a red-flag "too cheap" line • Options that matter — factory options decoded from the VIN, with resale impact • Buyer guidance — mileage context, history checks, and negotiation tips WHO IT'S FOR • Buyers who don't want to overpay • Sellers pricing a car to move • Enthusiasts and collectors tracking what their car is worth • Dealers sizing up trades and acquisitions Free to download, with complimentary scans every month. Questions or feedback? support@specscan.net — Terms of Use: https://specscan.net/terms Privacy Policy: https://specscan.net/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: TrueAuth at none against SpecScan VIN Decoder's 3. SpecScan VIN Decoder's advantage is update cadence (every 5 days vs fortnightly) and iOS requirement (15.5 vs 17.6). On price, ads, monetization model 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
Both are free to download. SpecScan VIN Decoder sells 3 in-app purchases, starting at $19.99 per month. TrueAuth asks for nothing beyond the download.
TrueAuth ships an update fortnightly, SpecScan VIN Decoder every 5 days. The most recent releases landed on October 7, 2026 and October 4, 2026 respectively.
| Parameter | TrueAuth | SpecScan VIN Decoder |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | Fortnightly | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.6 | 15.5 — better |
| Further details — not scored | ||
| Size | 12 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | AtomicFI | SpecScan LLC |
Customer experience
TrueAuth
SpecScan VIN Decoder
In-app purchases
TrueAuth
No in-app purchases
SpecScan VIN Decoder
- SpecScan Starter$19.991 Month
- SpecScan Pro$49.991 Month
- SpecScan Ultimate$99.991 Month
Questions
Is TrueAuth free?
Is SpecScan VIN Decoder free?
Do TrueAuth or SpecScan VIN Decoder have ads?
Which is updated more often, TrueAuth or SpecScan VIN Decoder?
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