# TWIC ADVISR vs iAssign

The clearest difference is rating: iAssign at 5.0 against TWIC ADVISR's 3.7. iAssign also leads on update cadence (every 4 months vs every 8 months). TWIC ADVISR's advantage is ratings volume (9 vs 2) and iOS requirement (11.0 vs 16.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

iAssign holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 9 and 2 respectively.

TWIC ADVISR ships an update every 8 months, iAssign every 4 months. The most recent releases landed on June 1, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | TWIC ADVISR | iAssign |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (9 ratings)](https://appshunter.io/ios/app/twic-advisr/id1449803844/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/iassign/id1497043707/reviews)** |
| Number of ratings | **9** | 2 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 4 months** |
| Monetization | Free | Free |
| Size | 42 MB | 25 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kibong Lee](https://appshunter.io/developer/1439078461) | [Industrial Scientific](https://appshunter.io/developer/1079090673) |

## What reviewers say

### TWIC ADVISR

[App page](https://appshunter.io/ios/app/twic-advisr/id1449803844)

This app verifies TWIC cards by checking their Credential Identification Number against a list of canceled numbers. It can scan barcodes or accept manual entry, then indicates if the card is canceled, expired, or valid.

**Highlights:** TWIC card verification, CIN number check, Barcode scanning, Manual CIN entry, Expiration date check, Card status indicator

**Features:** macOS Compatibility

**In-app purchases:** none


### iAssign

[App page](https://appshunter.io/ios/app/iassign/id1497043707)

This app helps monitor worker safety by tracking exposure to dangerous conditions and identifying unsafe behaviors. It uses beacons and tags to automatically log location data and alert users to restricted areas, enhancing worksite visibility and data interpretation.

**Highlights:** Automatic site assignment via beacons, Proximity alerts for restricted areas, Manual worker check-in/out, Gas detection data interpretation, Bluetooth-enabled tracking, Enhanced worksite visibility

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TWIC ADVISR free?

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

### Is iAssign free?

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

### Which has better reviews, TWIC ADVISR or iAssign?

iAssign is rated higher. TWIC ADVISR averages 3.7 out of 5 from 9 ratings, while iAssign averages 5.0 from 2 ratings.

### Do TWIC ADVISR or iAssign have ads?

Neither TWIC ADVISR nor iAssign shows ads.

### Which is updated more often, TWIC ADVISR or iAssign?

TWIC ADVISR ships an update every 8 months, and iAssign every 4 months. Most recently, TWIC ADVISR was updated on June 1, 2026 and iAssign on June 4, 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.*