# serWMS vs OPBIL OBM MOBILE

The clearest difference is iOS requirement: OPBIL OBM MOBILE at 12.4 against serWMS's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

serWMS ships an update fortnightly, OPBIL OBM MOBILE every 2 weeks. The most recent releases landed on November 7, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | serWMS | OPBIL OBM MOBILE |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Size | 40 MB | 21 MB |
| Requires iOS | 15.0 | **12.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SERENAY YAZILIM BILISIM HIZMETLERI TEKSTIL SANAYI VE TICARET LIMITED SIRKETI](https://appshunter.io/developer/1682847846) | [OPBIL YAZILIM VE DANISMANLIK HIZMETLERI SANAYI TICARET LIMITED SIRKETI](https://appshunter.io/developer/1775130976) |

## What reviewers say

### serWMS

[App page](https://appshunter.io/ios/app/serwms/id1515757753)

**Features:** macOS Compatibility

**In-app purchases:** none


### OPBIL OBM MOBILE

[App page](https://appshunter.io/ios/app/opbil-obm-mobile/id6754881365)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is serWMS free?

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

### Is OPBIL OBM MOBILE free?

OPBIL OBM MOBILE is free to download, with no in-app purchases.

### Do serWMS or OPBIL OBM MOBILE have ads?

Neither serWMS nor OPBIL OBM MOBILE shows ads.

### Which is updated more often, serWMS or OPBIL OBM MOBILE?

serWMS ships an update fortnightly, and OPBIL OBM MOBILE every 2 weeks. Most recently, serWMS was updated on November 7, 2026 and OPBIL OBM MOBILE on October 28, 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.*