Comparison

DimeVision vs NDT Cert Study

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

Head to head
About

DimeVision

Instantly analyze weld quality with AI, decode welding blueprints, and get personalized coaching. Track your progress and access essential welding calculators to improve your skills.

Highlights
  • Instant weld analysis and scoring
  • AI-powered defect detection
  • Blueprint symbol decoding
  • 24/7 AI welding instructor chat
  • Progress tracking dashboards
  • Welding calculators
Features
Read full description

Spot weld defects on your practice beads and know what to fix on the next pass. DimeVision is an AI welding coach for people practicing on their own. DEFECT CALLOUTS Scan a practice weld and see issues like undercut, porosity, cold lap, and unfilled craters called out, with a short note on what each one means. NEXT-PASS FIXES Get plain coaching on what to change on your next pass. DANNY DIME AI COACH Ask Danny common welding questions and troubleshoot technique any time. BLUEPRINT READING Decode welding symbols and blueprint callouts. LOGBOOK & PORTFOLIO (PRO) Save your scans and see which defects keep showing up. WELDING CALCULATORS Heat input, consumable estimates, and more. BEADBUILDER Explore how travel speed, voltage, wire feed, and technique change bead shape. FREE AND PRO Free includes 3 practice scans a day. DimeVision Pro ($4.99/mo or $29.99/yr) saves your scans to a logbook and portfolio, and unlocks unlimited Danny text chat. DimeVision gives visual practice feedback for education only. It is not a replacement for certified weld inspection.

About

NDT Cert Study

Features
Read full description

NDT Cert Study is a practice-question app for anyone preparing for nondestructive testing certification exams. It covers the main methods and code references: • Ultrasonic (UT) Levels I and II, plus phased array (PAUT) • Penetrant (PT) Levels I and II • Magnetic particle (MT) Levels I and II • Radiographic (RT) Levels I and II • API 1104 weld acceptance-criteria questions integrated into the UT and RT tracks Each question includes a worked explanation, so you learn why an answer is right, not just which one. The app tracks how ready you are by topic, lets you save tricky questions for another pass, and includes timed practice exams. Everything works offline. Your progress stays on your device. Modules unlock with a single one-time purchase. No subscription. NDT Cert Study is an independent study aid. It is not affiliated with, endorsed by, or sponsored by API, ASNT, ISO, CGSB, BINDT/PCN, or TWI/CSWIP. All certification names and marks are the property of their respective owners.

Screenshots

DimeVision3 screens
NDT Cert Study4 screens

Verdict

The call

DimeVision and NDT Cert Study are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. DimeVision sells 2 in-app purchases, starting at $9.99 per month and NDT Cert Study sells 9 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

DimeVision ships an update every 5 weeks, NDT Cert Study every 2 months. The most recent releases landed on October 20, 2026 and October 8, 2026 respectively.

ScorecardNo meaningful differences
DimeVision versus NDT Cert Study: the parameters behind the verdict, then further details
ParameterDimeVisionNDT Cert Study
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 5 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.1
Further details — not scored
Size25 MB35 MB
Age rating17+4+
DeveloperDaniel JohnsonSimon Shih

In-app purchases

2 purchases

DimeVision

Subscriptions2
  • Pro Monthly$9.991 Month
  • Journeyman Annual$99.991 Year
9 purchases

NDT Cert Study

One-time9
  • CGSB / MT Level I$9.99
  • CGSB / RT Level I$9.99
  • CGSB / PT Level II$9.99
Show 6 more
  • CGSB / PT Level I$9.99
  • CGSB / RT Level II$9.99
  • CGSB / UT Level II$9.99
  • CGSB / UT Level I$9.99
  • CGSB / PAUT Level I$9.99
  • CGSB / PAUT Level II$9.99

Questions

Is DimeVision free?
DimeVision is free to download, with in-app purchases available.
Is NDT Cert Study free?
NDT Cert Study is free to download, with in-app purchases available.
Do DimeVision or NDT Cert Study have ads?
Neither DimeVision nor NDT Cert Study shows ads.
Which is updated more often, DimeVision or NDT Cert Study?
DimeVision ships an update every 5 weeks, and NDT Cert Study every 2 months. Most recently, DimeVision was updated on October 20, 2026 and NDT Cert Study on October 8, 2026.

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