Cluster | Calculadora Cuotas vs SpurIT Installment Invoices
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 24, 2026 for Cluster, Oct 26, 2026 for SpurIT Installment Invoices.
The short answer
- Paid plans start at $9/month for Cluster and $4.95/month for SpurIT Installment Invoices.
- SpurIT Installment Invoices lists 1 features Cluster’s listing doesn’t mention, including Widget placement.
Head to head
Installment payments for your customers | Payment Plan
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Pro
Unlimited
- · 95% of Shopify themes supported
- · Live chat support
- · Set up for a product or whole store
Unlimited Priority
- · + All from the Unlimited Plan
- · Assistance to set up the app
- · Dedicated manager
- · Priority queue to get support
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureCuotas sin intereses en la ficha de producto y en el checkout. Mejora la conversión al mostrar opciones de pago en cuotas sin intereses. El cliente ve cómo dividir el precio en la ficha de producto y en el checkout, y avanza con más claridad. Configuras las cuotas, el horario y los textos desde el admin, sin tocar código. Es una calculadora informativa de precio.
Let customers pay in installments with recurring invoices, helping them buy higher-priced items and increasing your average order value. Installments can be applied to individual products, groups, collections, or the entire store. Set the first payment from 0-99% and choose monthly intervals for the balance. Customers will get recurring invoices until fully paid. Make larger purchases affordable and drive up sales!
- Calculadora informativa: muestra el precio dividido en cuotas
- Bloque solo visual en producto, colección y checkout
- 3, 6, 12 o 18 cuotas, con textos editables
- Activar u ocultar el bloque desde el Admin
- Flexible payment plans: set the quantity and period of payments for a product.
- Adjustable initial payment: 0-99% can be applied for the first installment.
- Variety of installment rules to apply for specific products or the whole store.
- Easy customization tools to change the widget text and placement to your liking.
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 |  Cluster |  SpurIT Installment 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 | Cluster | SpurIT Installment Invoices |
|---|---|---|
| App Store rating | Not published | 3.7 ★ |
| App Store reviews | Not published | 35 |
| New reviews, 28 days | Not enough data | 0 |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Cluster | SpurIT Installment Invoices |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | $9/month | $4.95/month(ahead) |
| Longest free trial | 3 days | 14 days |
| Plans listed | 1 | 2 |
Listing
| Measure | Cluster | SpurIT Installment Invoices |
|---|---|---|
| Shopify category rank | #442 | #82 |
| Shopify App Charts | #19 on Pricing moves in Product display - Other | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Sep 17, 2026 | Jun 25, 2020 |
| Languages | 1 | 1 |
| Developer | Cluster | E-commerce Agency | SpurIT LLC |
FAQ
Cluster and SpurIT Installment Invoices: common questions
- Is Cluster or SpurIT Installment Invoices cheaper?
- Paid plans start at $9/month for Cluster and $4.95/month for SpurIT Installment 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?
- SpurIT Installment Invoices lists 1 the others don’t mention, such as Widget placement. 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 24, 2026 for Cluster, Oct 26, 2026 for SpurIT Installment 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 24, 2026 for Cluster, Oct 26, 2026 for SpurIT Installment 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.