Comparison

VoltLab vs WeldLens

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

Head to head
About

VoltLab

This app simplifies learning electricity through interactive lessons and visual experiments. It offers offline access, quizzes with detailed solutions, and a reference guide for formulas. Ideal for students and educators seeking to understand electrical concepts.

Highlights
  • Interactive circuit building
  • Visual experiment results
  • Self-paced learning
  • Quizzes with step-by-step solutions
  • Offline access to lessons
  • Reference guide for formulas
Features
Read full description

Physics is easier to understand when you see it in action. In VoltLab, you explore electricity through interactive experiments, while lessons with AI narration help you understand what’s happening — step by step, at your own pace. What’s inside: • AI-narrated lessons — explore electricity with clear explanations and visual examples. • Interactive experiments — put the laws of physics to the test in experiments you control. • Quizzes with worked solutions — solve problems and reinforce your knowledge with detailed explanations. • No ads — immerse yourself in lessons and experiments without ad breaks. • Offline access — keep learning even without an internet connection. • Free content — learn something new and reinforce what you’ve learnt at no cost. Who it’s for: • School students and school leavers — understand what’s behind the formulas and laws in your textbook. • University students and independent learners — connect theory with what you see in the experiments and better understand electrical phenomena. • Teachers and tutors — show in action what’s difficult to explain in words. Download VoltLab — your discovery lab awaits! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://xelzlqhbkncusjefnhma.supabase.co/storage/v1/object/public/terms/privacy_policy.pdf

About

WeldLens

Instantly analyze weld quality using AI from your mobile device. Upload a photo, input details, and receive objective scores and detailed feedback on defects. Track your progress and maintain a digital record of inspections.

Highlights
  • AI-driven weld bead analysis
  • Objective scoring and detailed feedback
  • Detection of common weld defects
  • ISO 5817-2023 standard compliance
  • Automated report generation and history
  • User-friendly interface for field use
Read full description

Weld bead analysis, now right in your pocket. WeldLens is an instant weld bead analyzer tool, powered by AI. It provides a clear, easy-to-understand assessment of each weld at the click of a button, right from your mobile, eliminating subjective visual analysis and without the need for expensive and complex equipment. Upload a photo of your weld, input details like weld process, metal type, thickness, joint type, and position. Click. It’s that simple. The app gives both numerical scores and a detailed analysis across multiple parameters. The WeldLens Advantage - Objective, AI-driven analysis via smartphone Standardized quality parameters and scoring Automated digital documentation Instant, actionable feedback anywhere Intelligent Weld Analysis: * Detects cracks, surface pores, undercuts, excess weld metal, poor restarts, and more * Institutional grade scoring system for Bead Finish and Surface Discontinuity WeldLens uses advanced AI models to evaluate weld quality against the ISO 5817-2023 international standard, classifying defects across Quality Levels B, C, and D. (And AWS D1.1 is on the roadmap, coming soon!) Professional Reporting: Every analysis is automatically saved and organised, so users always have a clear record of inspections. Full analysis history with timestamps and weld metadata Save, share, and export reports User rating and feedback system per analysis Built for the Field Use it anywhere. Check your weld directly in your classroom, booth, or shop floor. Or take a picture and do your analysis later, whenever you find time. Fast, background image processing, no waiting around Clean, intuitive interface that makes it easy for everyone to use. Who Is WeldLens For? Welding Students & Trainees - Instant feedback, progress tracking Welding Instructors - Faster, standardized grading across large classes. Automated documentation to identify recurring mistakes and provide data-driven coaching Professional welders on the job - Quickly validate skill sets on the job and maintain a record of weld quality Secure access to all your previous reports, and keep track of your performance history anytime. Account & Data Management: WeldLens puts you in full control of your data and account. * Secure email-based registration with PIN verification * Persistent login with automatic session management * Account deletion with two-step PIN security confirmation * Full data cleanup on account removal

Screenshots

VoltLab4 screens
WeldLens4 screens

Verdict

The call

The clearest difference is rating: VoltLab at 5.0 against WeldLens's 1.5. VoltLab also leads on ratings volume (367 vs 2) and update cadence (every 5 days vs every 3 weeks). WeldLens's advantage is in-app purchases (none vs 7). On price, ads, device support and iOS requirement 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. VoltLab sells 7 in-app purchases, starting at $3.99 per month. WeldLens asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

VoltLab holds the better App Store score, 5.0 against 1.5. That said, the two scores are not equally well evidenced: VoltLab has 367 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

VoltLab ships an update every 5 days, WeldLens every 3 weeks. The most recent releases landed on October 3, 2026 and October 5, 2026 respectively.

Scorecard5 real differences · 5 level
VoltLab versus WeldLens: the parameters behind the verdict, then further details
ParameterVoltLabWeldLens
PriceFreeFree
Rating5.0 (367 ratings) — better1.5 (2 ratings)
Positive reviews96.8% of reviews—
Number of ratings367 — better2
Update frequencyEvery 5 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size123 MB28 MB
Age rating4+4+
DeveloperDenis GladkiiSkillveri Inc

Customer experience

VoltLab

All ratings367 ratings
Positive99.5%
Neutral0.5%
Negative0.0%
Written reviews124 reviews
Positive96.8%
Neutral2.4%
Negative0.8%

WeldLens

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

7 purchases

VoltLab

Subscriptions2
  • VoltLab Pro One Month$3.991 Month
  • VoltLab Pro One Year$12.991 Year
One-time5
  • VoltLab Pro One Year$6.99
  • VoltLab Donat$10.99
  • VoltLab Pro$39.99
Show 2 more
  • VoltLab Donate$49.99
  • Awesome VoltLab Donat$99.99
None

WeldLens

No in-app purchases

Questions

Is VoltLab free?
VoltLab is free to download, with in-app purchases available.
Is WeldLens free?
WeldLens is free to download, with no in-app purchases.
Which has better reviews, VoltLab or WeldLens?
VoltLab is rated higher. VoltLab averages 5.0 out of 5 from 367 ratings, while WeldLens averages 1.5 from 2 ratings.
Do VoltLab or WeldLens have ads?
Neither VoltLab nor WeldLens shows ads.
Which is updated more often, VoltLab or WeldLens?
VoltLab ships an update every 5 days, and WeldLens every 3 weeks. Most recently, VoltLab was updated on October 3, 2026 and WeldLens on October 5, 2026.

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