# STS vs Dolphin BMS

STS and Dolphin BMS are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

STS ships an update every 2 weeks, Dolphin BMS fortnightly. The most recent releases landed on October 18, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | STS | Dolphin BMS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Fortnightly** |
| Size | 12 MB | 51 MB |
| Requires iOS | 13.2 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [中铁工程装备集团有限公司](https://appshunter.io/developer/1447605449) | [惠州市佰铭诚电子有限公司](https://appshunter.io/developer/1631994436) |

## What reviewers say

### STS

[App page](https://appshunter.io/ios/app/sts-mobile/id1538528756)

**In-app purchases:** none


### Dolphin BMS

[App page](https://appshunter.io/ios/app/dolphin-bms/id6746481788)

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

**In-app purchases:** none


## Frequently asked questions

### Is STS free?

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

### Is Dolphin BMS free?

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

### Do STS or Dolphin BMS have ads?

Neither STS nor Dolphin BMS shows ads.

### Which is updated more often, STS or Dolphin BMS?

STS ships an update every 2 weeks, and Dolphin BMS fortnightly. Most recently, STS was updated on October 18, 2026 and Dolphin BMS on October 11, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*