Comparison

Just Invoice vs 4Spares

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

Head to head
About

Just Invoice

Features
Read full description

Just Invoice is an intuitive invoicing application for creating and sending quotes and invoices to your customers. Quote & Invoicing • Invoices for products and services • Create and send quotes to your customers, convert your quotes into invoices • Import your products and services by customizing the fields of your items: quantity, price, description, image, sku • Use more billing account and configure each account (Merchants) • Import your customer files • Choose the terms of payment of the invoice (by 15, 30 or 45 days) • Apply discounts on your items or on the total amount • Define the taxes applicable to your products and services • Define taxes included or excluded • Customize your company logo • Edit your invoice numbers easily • Easily create invoices on your phone • Easily create invoices on your phone • Create a customer from the phone's contact list • Use the currency of your country 42 languages: French, English, Arabic, Danish, German, Spanish, Irish, Scottish, Hebrew, Hindi, Croatian, Hungarian, Armenian, Indonesian, Icelandic, Italian, Japanese, Georgian, Korean, Malagasy, Mongolian, Moldovan, Maltese, Burmese, Nepalese, Dutch, Norwegian, Polish, Pashto, Portuguese, Russian, Slovak, Slovenian, Somali, Swedish, Tamil, Thai, Turkmen, Turkish, Vietnamese, Chinese Multi-currencies: more than 200 currencies With Just Invoice you manage your customers' invoicing in record time, by sending them professional invoices in your image. With the free version you can be limited in number, if you like our app you can upgrade the app to be able to create an unlimited number of invoices.

About

4Spares

Features
Read full description

Sell vehicle spare parts, manage orders, and reach more customers with ease.

Screenshots

Just Invoice4 screens
4Spares2 screens

Verdict

The call

The clearest difference is update cadence: 4Spares at every 3 days against Just Invoice's monthly. Just Invoice's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

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

UpkeepUpdate frequency

Just Invoice ships an update monthly, 4Spares every 3 days. The most recent releases landed on October 2, 2026 and September 25, 2026 respectively.

Scorecard2 real differences Ā· 4 level
Just Invoice versus 4Spares: the parameters behind the verdict, then further details
ParameterJust Invoice4Spares
PriceFreeFree
Update frequencyMonthlyEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size29 MB74 MB
Age rating17+4+
DeveloperWAFR CONSULTING4SPARES PRIVATE LIMITED

In-app purchases

None

Just Invoice

No in-app purchases

None

4Spares

No in-app purchases

Questions

Is Just Invoice free?
Just Invoice is free to download, with no in-app purchases.
Is 4Spares free?
4Spares is free to download, with no in-app purchases.
Do Just Invoice or 4Spares have ads?
Neither Just Invoice nor 4Spares shows ads.
Which is updated more often, Just Invoice or 4Spares?
Just Invoice ships an update monthly, and 4Spares every 3 days. Most recently, Just Invoice was updated on October 2, 2026 and 4Spares on September 25, 2026.

Other comparisons