# Arlektra Mini vs Knowledge Nerds

The clearest difference is in-app purchases: Arlektra Mini at none against Knowledge Nerds's 10. Knowledge Nerds's advantage is update cadence (every 2 months vs every 17 months) and iOS requirement (15.5 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Knowledge Nerds sells 10 one-off in-app purchases. Arlektra Mini asks for nothing beyond the download.

Arlektra Mini ships an update every 17 months, Knowledge Nerds every 2 months. The most recent releases landed on June 4, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Arlektra Mini | Knowledge Nerds |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/arlektra-mini/id1622822411/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 274 MB | 146 MB |
| Requires iOS | 17.0 | **15.5** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [AR STEM LABS](https://appshunter.io/developer/1449428802) | [Online Learning](https://appshunter.io/developer/1790866777) |

## What reviewers say

### Arlektra Mini

[App page](https://appshunter.io/ios/app/arlektra-mini/id1622822411)

Learn electronics and circuits through interactive augmented reality. Visualize complex theories, build circuits with step-by-step instructions, and explore electrical components in 3D.

**Highlights:** Augmented reality 3D instructions, Real-time visualizations, Step-by-step circuit building, Detailed 3D component views, Digital multimeter basics, Interactive learning

**In-app purchases:** none


### Knowledge Nerds

[App page](https://appshunter.io/ios/app/knowledge-nerds/id6753704280)

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Package - AV | $34.99 | one-time |
| Package - AY | $39.99 | one-time |
| Package - AZ | $39.99 | one-time |
| Package - BB | $39.99 | one-time |
| Package - BD | $39.99 | one-time |
| Package - AW | $39.99 | one-time |
| Package - BE | $44.99 | one-time |
| Package - BG | $49.99 | one-time |
| Package - BH | $49.99 | one-time |
| Package - BF | $49.99 | one-time |


## Frequently asked questions

### Is Arlektra Mini free?

Arlektra Mini is free to download, with no in-app purchases.

### Is Knowledge Nerds free?

Knowledge Nerds is free to download, with in-app purchases available.

### Do Arlektra Mini or Knowledge Nerds have ads?

Neither Arlektra Mini nor Knowledge Nerds shows ads.

### Which is updated more often, Arlektra Mini or Knowledge Nerds?

Arlektra Mini ships an update every 17 months, and Knowledge Nerds every 2 months. Most recently, Arlektra Mini was updated on June 4, 2026 and Knowledge Nerds on September 22, 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.*