# VoltLab vs WeldLens

The clearest difference is rating: VoltLab at 5.0 against WeldLens's 1.5. VoltLab also leads on ratings volume (381 vs 2) and update cadence (every 6 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.

Both are free to download. VoltLab sells 7 in-app purchases, starting at $3.99 per month. WeldLens asks for nothing beyond the download.

VoltLab holds the better App Store score, 5.0 against 1.5. That said, the two scores are not equally well evidenced: VoltLab has 381 ratings behind it against 2, so its average is the more settled of the two.

VoltLab ships an update every 6 days, WeldLens every 3 weeks. The most recent releases landed on October 12, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | VoltLab | WeldLens |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (381 ratings)](https://appshunter.io/ios/app/voltlab-interactive-physics/id1461701360/reviews)** | [1.5 (2 ratings)](https://appshunter.io/ios/app/weldlens/id6771669060/reviews) |
| Number of ratings | **381** | 2 |
| Positive reviews | 96.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 125 MB | 28 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Denis Gladkii](https://appshunter.io/developer/1851726380) | [Skillveri Inc](https://appshunter.io/developer/6771669062) |

## What reviewers say

### VoltLab

[App page](https://appshunter.io/ios/app/voltlab-interactive-physics/id1461701360)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VoltLab Pro One Month | $3.99 | per month |
| VoltLab Pro One Year | $12.99 | per year |
| VoltLab Pro One Year | $6.99 | one-time |
| VoltLab Donat | $10.99 | one-time |
| VoltLab Pro | $39.99 | one-time |
| VoltLab Donate | $49.99 | one-time |
| Awesome VoltLab Donat | $99.99 | one-time |


### WeldLens

[App page](https://appshunter.io/ios/app/weldlens/id6771669060)

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

**In-app purchases:** none


## Frequently asked 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 381 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 6 days, and WeldLens every 3 weeks. Most recently, VoltLab was updated on October 12, 2026 and WeldLens on October 5, 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.*