# SAS TMS vs oTMS Driver

The clearest difference is update cadence: oTMS Driver at monthly against SAS TMS's every 2 months. SAS TMS's advantage is iOS requirement (9.0 vs 11.0). On price, ads, in-app purchases and device support there is nothing between them.

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

SAS TMS ships an update every 2 months, oTMS Driver monthly. The most recent releases landed on July 25, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | SAS TMS | oTMS Driver |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (8 ratings)](https://appshunter.io/ios/app/sas-tms/id1035605698/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | — |
| Size | 12 MB | 244 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Chuangcheng Chelian Net Technology Co., Ltd.](https://appshunter.io/developer/1011702853) | [OTMS TRANSPORT TECHNOLOGIES PTE. LTD.](https://appshunter.io/developer/1800879486) |

## What reviewers say

### SAS TMS

[App page](https://appshunter.io/ios/app/sas-tms/id1035605698)

This app allows parents to monitor their children's school bus activity. It tracks card swipes for boarding and disembarking, and provides real-time bus location and monitor information. Parents can also view school notices and punch card records.

**Highlights:** Student card swipe monitoring, Real-time bus location tracking, Bus monitor information, School notice viewing, Punch card record access

**Features:** macOS Compatibility

**In-app purchases:** none


### oTMS Driver

[App page](https://appshunter.io/ios/app/otms-driver/id1631637375)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SAS TMS free?

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

### Is oTMS Driver free?

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

### Do SAS TMS or oTMS Driver have ads?

Neither SAS TMS nor oTMS Driver shows ads.

### Which is updated more often, SAS TMS or oTMS Driver?

SAS TMS ships an update every 2 months, and oTMS Driver monthly. Most recently, SAS TMS was updated on July 25, 2026 and oTMS Driver on May 16, 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.*