Comparison

GST @ SG vs E

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

GST @ SG

Check GST Registered Business

About

GST @ SG

Features

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GST Register Check businesses whether they are GST registered in Singapore

About

E

Features

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Introducing our easy-to-use E-Invoice Application, part of Gate-e services, designed to make creating E-Invoices a breeze. giving you a simple and efficient way to generate invoices.

Screenshots

GST @ SG2 screens

E3 screens

Verdict

The call

The clearest difference is ads: E at none against GST @ SG's shown. E also leads on update cadence (every 4 months vs every 15 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

GST @ SG ships an update every 15 months, E every 4 months. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.

Scorecard2 real differences · 4 level

GST @ SG versus E: the parameters behind the verdict, then further details
Parameter	GST @ SG	E
Price	Free	Free
Update frequency	Every 15 months	Every 4 months — better
Ads	Yes	No — better
In-app purchases	No	No
Devices	iPhone, iPad, iPod — better	iPhone, iPad
Requires iOS	15.6 — better	16.6
Further details — not scored
Size	27 MB	82 MB
Age rating	4+	17+
Developer	Novanet Solutions	E-SERVICES PLATFORM W.L.L