Instagst ‑ GST Reports India vs Sleek GST Invoices ‑ India
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 26, 2026 for Instagst, Oct 14, 2026 for Sleek GST Invoices.
The short answer
- Only Instagst lists a free plan. Paid plans start at $5.99/month for Instagst and $5/month for Sleek GST Invoices.
- Sleek GST Invoices lists 9 features Instagst’s listing doesn’t mention, including Branding, Bulk download, Color and font.
Head to head
Create GST Complaint Invoices
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Free
- · Auto IGST / CGST-SGST based on address
- · Create your own template
- · Manage your products tax information
- · Up to 50 orders per month
Startup
- · 300 orders per month
- · Bulk print invoices
- · GST Report (first 300 orders per report)
Business
- · 2,500 orders per month
- · Advanced email automation
- · Auto collect GST number
- · B2B customer setup
- · GST Report (first 2,500 orders per repor
- · Integrations
Advanced
- · GST Report (Unlimited orders)
- · POS print
- · Priority WhatsApp & call support
- · Unlimited orders
Basic Plan
- · Auto Emails
- · Bulk Downloads
- · Bulk Update HSN/GST Rates
- · Credit Notes
- · Customizable Invoice
- · Reports
Pro Plan
- · All features included in Basic plan
- · Auto Credit Note
- · Auto Order Detail Sync on Changes
- · Auto Order Status Sync
- · Auto Report Update
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureFiling GST every month means rebuilding GSTR-1 and GSTR-3B from Shopify exports by hand — hours of spreadsheet work, and one wrong tax split away from a notice. Catalyst turns each order into a GST-compliant tax invoice with HSN codes and the correct CGST, SGST or IGST split based on place of supply. Each tax period becomes a filing-ready GST report you can download or auto-email to your accountant.
Sleek GST Invoices helps Shopify merchants in India create GST-compliant invoices for their orders with minimal manual effort. The app automatically applies CGST, SGST, or IGST based on the customer’s location and ensures tax calculations follow GST rules. Merchants can add their business logo to invoices and generate downloadable or printable copies for customers.
- Search your orders and print
- Manage your products tax information
- Create your own template
- HSN code setup. Up-To-Date GST Rates. Auto Tax Calculations.
- Branded Invoice with your Logo. Multiple Invoice Templates.
- Auto/Manual Invoice Emails. Bulk Downloads. View, Print, Download anytime.
- GSTR-1, GSTR-3B and GSTR-4 report formats for fast GST filling.
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  Instagst |  Sleek GST Invoices |
|---|---|---|
| Detected stores | Not published | Not published |
| Net store change, 28 days | 0 | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Not published |
| Top store countries | Not published | Not published |
Reviews
| Measure | Instagst | Sleek GST Invoices |
|---|---|---|
| App Store rating | Not published | 4.5 ★ |
| App Store reviews | Not published | 31 |
| New reviews, 28 days | Not enough data | 0 |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Instagst | Sleek GST Invoices |
|---|---|---|
| Free plan | Yes | Not listed |
| Lowest paid monthly plan | $5.99/month | $5/month(ahead) |
| Longest free trial | 3 days | 7 days |
| Plans listed | 4 | 2 |
Listing
| Measure | Instagst | Sleek GST Invoices |
|---|---|---|
| Shopify category rank | #336 | #57(ahead) |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | Yes |
| Launched | May 1, 2026 | Jan 3, 2020 |
| Languages | 1 | 1 |
| Developer | DTechies | Thalia Tech |
FAQ
Instagst and Sleek GST Invoices: common questions
- Is Instagst or Sleek GST Invoices cheaper?
- Only Instagst lists a free plan. Paid plans start at $5.99/month for Instagst and $5/month for Sleek GST Invoices. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- What features does each app list that the other doesn’t?
- Instagst lists 1 the others don’t mention, such as Multi-currency. Sleek GST Invoices lists 9 the others don’t mention, such as Branding, Bulk download, Color and font, Credit notes. A feature missing from a listing may still be supported; this compares what each App Store listing says.
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Oct 26, 2026 for Instagst, Oct 14, 2026 for Sleek GST Invoices; estimated figures are labeled.
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Oct 26, 2026 for Instagst, Oct 14, 2026 for Sleek GST Invoices. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.