# SINGHA iMS vs ArcAir

The clearest difference is review sentiment: ArcAir at 100% against SINGHA iMS's 0%. SINGHA iMS's advantage is in-app purchases (none vs 2) and update cadence (every 3 weeks vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. ArcAir sells 2 one-off in-app purchases. SINGHA iMS asks for nothing beyond the download.

SINGHA iMS ships an update every 3 weeks, ArcAir every 5 months. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | SINGHA iMS | ArcAir |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (8 ratings)](https://appshunter.io/ios/app/arcair/id1133492319/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 48 MB | 21 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Boonrawd Brewery Company Limited](https://appshunter.io/developer/1125226850) | [Hamilton Bonaduz AG](https://appshunter.io/developer/530886485) |

## What reviewers say

### SINGHA iMS

[App page](https://appshunter.io/ios/app/singha-ims/id1121530443)

This internal messaging app facilitates company-wide communication through user groups for updates and important activities. It also functions as a query tool, allowing users to ask about stock, expiry dates, or warehouse locations based on administrator-defined questions.

**Highlights:** Internal messaging, User groups for updates, Query tool for stock, Query tool for expiry dates, Query tool for warehouse locations, Administrator-defined questions

**Features:** macOS Compatibility

**In-app purchases:** none


### ArcAir

[App page](https://appshunter.io/ios/app/arcair/id1133492319)

This app facilitates the online monitoring and visualization of various sensor data for biotechnological processes. It allows wireless communication with multiple sensors simultaneously and provides central data management, reporting, and validation for sensor calibration and configuration, supporting GMP guidelines.

**Highlights:** Online sensor monitoring, Data visualization, Wireless sensor communication, Central data management, Sensor calibration validation, Paperless workflow support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ArcAir Basic Version | Free | one-time |
| ArcAir Advanced Version | $199.99 | one-time |


## Frequently asked questions

### Is SINGHA iMS free?

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

### Is ArcAir free?

ArcAir is free to download, with in-app purchases available.

### Do SINGHA iMS or ArcAir have ads?

Neither SINGHA iMS nor ArcAir shows ads.

### Which is updated more often, SINGHA iMS or ArcAir?

SINGHA iMS ships an update every 3 weeks, and ArcAir every 5 months. Most recently, SINGHA iMS was updated on October 24, 2026 and ArcAir on October 7, 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.*