# TNsand Investigator — Engineer In Chief

> Engineer In Chief (iPhone/iPad app by Bakthavthchalam Maruthappan.)

- Source: https://appshunter.io/ios/app/tnsand-investigator/id1544416371 (this page in markdown: same URL + `.md`)
- Developer: [Bakthavthchalam Maruthappan](https://appshunter.io/developer/1322419037)
- Category: Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 12.0 · 17 MB
- Languages: English
- Released: 2020-12-12
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/tnsand-investigator/id1544416371/reviews.md

## What is TNsand Investigator?

TNsand Investigator app helps RTO/ checking inspectors and officers to verify the permit slip. They can scan the QR code available from permit slip. They can also validate sand load and delivery address by lorry registration no. These numbers can be found in permit slip.


## Version history (last 3 releases)

### 4.1 — 2022-05-30

Added authentication module

### 2.0 — 2022-04-09

General bug  fixes

### 1.0 — 2020-12-12

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-19.*