# GST Invoice vs Invoice ASAP

The clearest difference is review sentiment: Invoice ASAP at 100% against GST Invoice's 25%. GST Invoice's advantage is in-app purchases (none vs 3) and device support (3 vs 1). On price, update cadence and ads there is nothing between them.

Both are free to download. Invoice ASAP sells 3 in-app purchases, starting at $5.99 per 7 days. GST Invoice asks for nothing beyond the download.

GST Invoice ships an update monthly, Invoice ASAP every 3 weeks. The most recent releases landed on October 8, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | GST Invoice | Invoice ASAP |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 25.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 32 MB | 67 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Arjun Bhatt](https://appshunter.io/developer/1440376674) | [Pale Blue Software Ltd](https://appshunter.io/developer/425510505) |

## What reviewers say

### GST Invoice

[App page](https://appshunter.io/ios/app/gst-invoice/id1499345771)

This lightweight application simplifies accounting and invoicing for businesses. Generate instant PDF GST invoices, manage client billing, and track ledgers all offline. It's a quick and easy mobile solution for creating professional invoices without complex desktop software.

**Highlights:** Quick invoicing, Instant PDF GST invoice generation, Client-wise billing and ledger management, Offline data storage, No registration or hidden charges, Unlimited invoices and customers

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

**In-app purchases:** none


### Invoice ASAP

[App page](https://appshunter.io/ios/app/invoice-asap-estimate-maker/id6752488422)

Create professional estimates and invoices quickly from your mobile device. Track when clients open your bills and get paid faster with real-time updates and advanced business reports. Securely manage client details and financial data.

**Highlights:** Real-time invoice open tracking, Create estimates and quotes, Advanced business reports, Instant invoice creation, Smart tax and discount calculations, Flexible sharing options (PDF, email), Cloud backup and bank-grade security

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $5.99 | per 7 days |
| Monthly | $9.99 | per month |
| Annual | $99.99 | per year |


## Frequently asked questions

### Is GST Invoice free?

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

### Is Invoice ASAP free?

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

### Do GST Invoice or Invoice ASAP have ads?

Neither GST Invoice nor Invoice ASAP shows ads.

### Which is updated more often, GST Invoice or Invoice ASAP?

GST Invoice ships an update monthly, and Invoice ASAP every 3 weeks. Most recently, GST Invoice was updated on October 8, 2026 and Invoice ASAP on October 26, 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.*