# OtoKarar vs Weldwise

The clearest difference is in-app purchases: OtoKarar at none against Weldwise's 3. OtoKarar also leads on update cadence (weekly vs every 4 weeks). Weldwise's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Weldwise sells 3 in-app purchases, starting at $9.99 per month. OtoKarar asks for nothing beyond the download.

OtoKarar ships an update weekly, Weldwise every 4 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | OtoKarar | Weldwise |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 4 weeks |
| Size | 21 MB | 3 MB |
| Requires iOS | 16.6 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [cengizhan kervanc](https://appshunter.io/developer/1589915938) | [ENES AYKUT AYDEMIR](https://appshunter.io/developer/6782291739) |

## What reviewers say

### OtoKarar

[App page](https://appshunter.io/ios/app/otokarar/id6769715020)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Weldwise

[App page](https://appshunter.io/ios/app/weldwise-welding-calculator/id6783706623)

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weldwise Shop | $9.99 | per month |
| Weldwise Shop | $79.99 | per year |
| Weldwise Pro | $7.99 | one-time |


## Frequently asked questions

### Is OtoKarar free?

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

### Is Weldwise free?

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

### Do OtoKarar or Weldwise have ads?

OtoKarar shows ads; Weldwise does not.

### Which is updated more often, OtoKarar or Weldwise?

OtoKarar ships an update weekly, and Weldwise every 4 weeks. Most recently, OtoKarar was updated on October 24, 2026 and Weldwise on October 25, 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.*