Comparison

PiPhone 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

PiPhone

Create and customize animated pie charts with drag-and-drop annotations. Personalize text, highlight slices, and add currency symbols. Save and share your visual data easily.

Highlights
  • Animated pie charts
  • Drag-and-drop annotations
  • Customizable font size
  • Slice highlighting
  • Currency symbol options
  • Save and share charts
Features
Read full description

Drag pie slice annotations for precise placement on your pie chart. Change font size for your annotations. Highlight any or all slices of your pie chart. Choose from 28 different currency symbols to add to your amount annotations. Add up to 24 slices to your pie chart. Save your pie charts. Share your pie charts via email or social media.

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

PiPhone4 screens
Simple Invoice PDF4 screens

Verdict

The call

The clearest difference is in-app purchases: PiPhone at none against Simple Invoice PDF's 1. PiPhone also leads on update cadence (every 4 days vs fortnightly) and iOS requirement (14.0 vs 18.6). On price, ads 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. Simple Invoice PDF sells 1 one-off in-app purchase. PiPhone asks for nothing beyond the download.

UpkeepUpdate frequency

PiPhone ships an update every 4 days, Simple Invoice PDF fortnightly. The most recent releases landed on October 8, 2026 and October 6, 2026 respectively.

Scorecard3 real differences · 7 level
PiPhone versus Simple Invoice PDF: the parameters behind the verdict, then further details
ParameterPiPhoneSimple Invoice PDF
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 4 days — betterFortnightly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS14.0 — better18.6
Further details — not scored
Size5 MB2 MB
Age rating4+4+
DeveloperDaniel PayneSerghei Eschin

In-app purchases

None

PiPhone

No in-app purchases

1 purchases

Simple Invoice PDF

One-time1
  • Simple Invoice Pro$9.99

Questions

Is PiPhone free?
PiPhone is free to download, with no in-app purchases.
Is Simple Invoice PDF free?
Simple Invoice PDF is free to download, with in-app purchases available.
Do PiPhone or Simple Invoice PDF have ads?
Neither PiPhone nor Simple Invoice PDF shows ads.
Which is updated more often, PiPhone or Simple Invoice PDF?
PiPhone ships an update every 4 days, and Simple Invoice PDF fortnightly. Most recently, PiPhone was updated on October 8, 2026 and Simple Invoice PDF on October 6, 2026.

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