# OPANSOON vs SONLAM

The clearest difference is ads: SONLAM at none against OPANSOON's shown. OPANSOON's advantage is update cadence (weekly vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

OPANSOON ships an update weekly, SONLAM every 2 months. The most recent releases landed on October 14, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | OPANSOON | SONLAM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 2 months |
| Size | 131 MB | 35 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Doolson](https://appshunter.io/developer/1680843827) | [FUZHOU SONLAM BUILDING MATERIALS CO.,LTD](https://appshunter.io/developer/1725790635) |

## What reviewers say

### OPANSOON

[App page](https://appshunter.io/ios/app/opansoon/id6447284653)

**Features:** macOS Compatibility

**In-app purchases:** none


### SONLAM

[App page](https://appshunter.io/ios/app/sonlam/id6470901492)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OPANSOON free?

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

### Is SONLAM free?

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

### Do OPANSOON or SONLAM have ads?

OPANSOON shows ads; SONLAM does not.

### Which is updated more often, OPANSOON or SONLAM?

OPANSOON ships an update weekly, and SONLAM every 2 months. Most recently, OPANSOON was updated on October 14, 2026 and SONLAM on October 19, 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.*