Comparison

AI Quotation Service vs Simple Invoice PDF

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

Head to head
About

AI Quotation Service

Generate professional and beautifully formatted quotations quickly and accurately. This tool is ideal for freelancers, small businesses, and online sellers needing fast quotation documents.

Highlights
  • Instant quote generation
  • Professional formatting
  • Suitable for various industries
  • Accessible anywhere, anytime
  • Designed for freelancers and small businesses
Features
Read full description

AI Quotation Service – Create Professional Quotes in Seconds Need fast, accurate, and beautifully formatted quotations for your clients? AI Quotation Service helps you generate professional quotes instantly — anywhere, anytime. Perfect for freelancers, small businesses, service providers, online sellers, and any industry that needs quick quotation documents. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ https://lombardweb.com/privacy-policy

About

Simple Invoice PDF

Features
Read full description

Create a professional invoice, receipt, or estimate in 30 seconds — and send it as a clean PDF. No account. No subscription. No limits. Tired of invoice apps that make you sign up, push you into a cloud, and then cap how many documents you can send — even on a paid plan? Simple Invoice PDF is the opposite: open the app, fill in a few fields, share the PDF. Done. WHY FREELANCERS CHOOSE IT • Unlimited documents — free, forever. No monthly caps, no "3 invoices per month" tricks. • No developer account or server upload. Your data stays on your device unless you choose Pro iCloud Backup or explicitly share a PDF. • Reliable export & print. PDFs are generated with the system print engine — what you see is exactly what your client gets, in email, messages, or on paper. • Fast input. Only the fields that matter are required. Repeat clients are one tap away. WHAT'S INSIDE • Invoices, receipts, and estimates with automatic numbering • Line items with quantities, rates, and automatic totals • Tax rate and notes • Client list — add once, reuse forever • Business profile: your details, logo, currency, tax defaults • PDF preview before sending • Share anywhere: email, messages, print, save to Files • Professional templates for different kinds of work FREE VS PRO The free version is fully functional and unlimited — every document simply carries a small "Made with Simple Invoice PDF" line. Pro is a single one-time purchase (not a subscription!) and unlocks: • PDFs without the watermark • Your logo on documents • Premium templates • Brand colors, signatures, payment details and QR codes • Automatic iCloud backup with manual restore Pay once, keep it forever. That's it. PRIVATE BY DESIGN Simple Invoice PDF works offline with no registration and no tracking. Documents leave your device only when you explicitly share a PDF or use the optional Pro backup stored in your private iCloud container. Perfect for freelancers, contractors, handymen, cleaners, tutors, photographers, designers, small shops — anyone who needs to bill a client without fighting an app. Terms of Use: https://simple-invoice-pdf.vercel.app/terms.html Download it, make your first invoice, and see how simple invoicing should be.

Screenshots

AI Quotation Service3 screens
Simple Invoice PDF4 screens

Verdict

The call

The clearest difference is ads: Simple Invoice PDF at none against AI Quotation Service's shown. AI Quotation Service's advantage is update cadence (every 5 days vs fortnightly) and iOS requirement (15.1 vs 18.6). On price, in-app purchases and device support 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. AI Quotation Service sells 1 in-app purchase, starting at $5.99 per month and Simple Invoice PDF sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

AI Quotation Service ships an update every 5 days, Simple Invoice PDF fortnightly. The most recent releases landed on November 5, 2026 and October 6, 2026 respectively.

Scorecard3 real differences · 7 level
AI Quotation Service versus Simple Invoice PDF: the parameters behind the verdict, then further details
ParameterAI Quotation ServiceSimple Invoice PDF
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 5 days — betterFortnightly
AdsYesNo — better
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better18.6
Further details — not scored
Size35 MB2 MB
Age rating17+4+
DeveloperLombard VoSerghei Eschin

In-app purchases

1 purchases

AI Quotation Service

Subscriptions1
  • Premium Subscription$5.991 Month
1 purchases

Simple Invoice PDF

One-time1
  • Simple Invoice Pro$9.99

Questions

Is AI Quotation Service free?
AI Quotation Service is free to download, with in-app purchases available.
Is Simple Invoice PDF free?
Simple Invoice PDF is free to download, with in-app purchases available.
Do AI Quotation Service or Simple Invoice PDF have ads?
AI Quotation Service shows ads; Simple Invoice PDF does not.
Which is updated more often, AI Quotation Service or Simple Invoice PDF?
AI Quotation Service ships an update every 5 days, and Simple Invoice PDF fortnightly. Most recently, AI Quotation Service was updated on November 5, 2026 and Simple Invoice PDF on October 6, 2026.

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