# SGFlight vs Stamp Duty

The clearest difference is ads: SGFlight at none against Stamp Duty's shown. Stamp Duty's advantage is update cadence (every 2 months vs every 5 months) and iOS requirement (12 vs 16.4). On price, 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.

SGFlight ships an update every 5 months, Stamp Duty every 2 months. Both last shipped on October 29, 2026.

## The numbers

| Metric | SGFlight | Stamp Duty |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | — | Ad-supported |
| Size | 51 MB | 50 MB |
| Requires iOS | 16.4 | **12** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Civil Aviation Authority of Singapore](https://appshunter.io/developer/1019486003) | [Novanet Solutions](https://appshunter.io/developer/1482778283) |

## What reviewers say

### SGFlight

[App page](https://appshunter.io/ios/app/sgflight/id1509491329)

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

**In-app purchases:** none


### Stamp Duty

[App page](https://appshunter.io/ios/app/stamp-duty/id1532047009)

This app helps users calculate stamp duty for property purchases in Singapore. It covers residential and non-residential properties, company shares, and allows verification of stamp duty certificates and checking outstanding amounts.

**Highlights:** Calculate residential stamp duty, Calculate non-residential stamp duty, Calculate company shares stamp duty, Verify stamp duty certificate, Check outstanding stamp duty amount

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

**In-app purchases:** none


## Frequently asked questions

### Is SGFlight free?

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

### Is Stamp Duty free?

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

### Do SGFlight or Stamp Duty have ads?

Stamp Duty shows ads; SGFlight does not.

### Which is updated more often, SGFlight or Stamp Duty?

SGFlight ships an update every 5 months, and Stamp Duty every 2 months. Most recently, SGFlight was updated on October 29, 2026 and Stamp Duty on October 29, 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.*