Comparison

PiPhone vs Open Invoice & Estimate Maker

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

Open Invoice & Estimate Maker

Create professional invoices and job estimates quickly for your small business. Get paid faster with online payment options and track outstanding bills. Designed for contractors and service professionals.

Highlights
  • Create invoices and estimates in seconds
  • Customizable professional templates
  • Enable online payments
  • Track expenses and outstanding payments
  • Convert estimates to invoices
  • Digital signature for estimates
Features
Read full description

Openinvoice: Professional Invoice Maker & Estimate App for Contractors Create professional invoices and job estimates in minutes. Stop chasing payments and start growing your business. Built for contractors, plumbers, electricians, consultants, and small business owners who need simple, reliable billing on the go. No complicated setup. No accounting degree required. Just fast, clean invoicing that helps you get paid. WHY CHOOSE OPENINVOICE? - Create Invoices in Seconds: Our intuitive interface means you can send a professional bill before you’ve even left the job site. - Look Like a Pro: Use customizable, high-quality templates. Add your logo, signature, and brand colors to impress your clients. - Get Paid Faster: Enable online payments (Credit Cards, Apple Pay, PayPal) so your customers can pay you with a single tap. - Stay Organized: No more lost receipts or "shoebox" accounting. Track expenses, taxes, and outstanding payments in one central place. SMART INVOICING & BILLING - Create and send invoices via Email, Text, or WhatsApp. - Convert estimates to invoices with a single tap. - Get "Read Receipts", know exactly when your client opens your invoice. - Set up automatic payment reminders for overdue bills. PROFESSIONAL ESTIMATES & QUOTES - Win more jobs by sending professional quotes on the spot. - Attach photos of your work or supplies to provide clear details. - Allow clients to sign estimates digitally for instant approval. BUILT FOR YOUR BUSINESS - Service Pros: Perfect for plumbers, electricians, and landscapers. - Creatives: Ideal for photographers, writers, and consultants. - Sync Across Devices: Access your data on iPhone, iPad, and Desktop. HOW IT WORKS (In 3 Easy Steps): - Add Your Details: Upload your logo and business info. - Select a Client: Import directly from your phone contacts. - Send & Get Paid: Add your items, hit send, and watch the payments roll in. Designed for Small Businesses Whether you're a general contractor, handyman, freelancer, or running a growing service business, this invoice maker keeps your billing simple and professional. Start free with limited usage. Upgrade only when your business grows. Create invoices. Send estimates. Get paid. Simple as that. Privacy policy - https://openinvoice.canopas.com/privacy-policy Terms of Use - https://openinvoice.canopas.com/terms-of-service Questions or Feedback? Reach out to us at https://openinvoice.canopas.com/contact-us

Screenshots

PiPhone4 screens
Open Invoice & Estimate Maker4 screens

Verdict

The call

The clearest difference is in-app purchases: PiPhone at none against Open Invoice & Estimate Maker's 5. PiPhone also leads on update cadence (every 4 days vs every 3 weeks). On price, rating, review sentiment and ratings volume 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. Open Invoice & Estimate Maker sells 5 in-app purchases, starting at $12.99 per month. PiPhone asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for PiPhone against 5.0 for Open Invoice & Estimate Maker. Both are backed by a comparable volume of ratings — 3 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

PiPhone ships an update every 4 days, Open Invoice & Estimate Maker every 3 weeks. The most recent releases landed on October 8, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 7 level
PiPhone versus Open Invoice & Estimate Maker: the parameters behind the verdict, then further details
ParameterPiPhoneOpen Invoice & Estimate Maker
PriceFreeFree
Rating5.0 (3 ratings)5.0 (4 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings34 — better
Update frequencyEvery 4 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS14.0 — better15.1
Further details — not scored
Size5 MB77 MB
Age rating4+4+
DeveloperDaniel PayneCANOPAS SOFTWARE LLP

Customer experience

PiPhone

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Open Invoice & Estimate Maker

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews15 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

PiPhone

No in-app purchases

5 purchases

Open Invoice & Estimate Maker

Subscriptions5
  • OpenInvoice Pro$12.991 Month
  • OpenInvoice Pro 1 Month$14.991 Month
  • OpenInvoice Pro 1 Year7 Days trial$49.991 Year
Show 2 more
  • OpenInvoice Pro 1 Year$49.991 Year
  • OpenInvoice Pro$99.991 Year

Questions

Is PiPhone free?
PiPhone is free to download, with no in-app purchases.
Is Open Invoice & Estimate Maker free?
Open Invoice & Estimate Maker is free to download, with in-app purchases available.
Which has better reviews, PiPhone or Open Invoice & Estimate Maker?
PiPhone and Open Invoice & Estimate Maker are both rated 5.0 out of 5 on the App Store, from 3 and 4 ratings respectively.
Do PiPhone or Open Invoice & Estimate Maker have ads?
Neither PiPhone nor Open Invoice & Estimate Maker shows ads.
Which is updated more often, PiPhone or Open Invoice & Estimate Maker?
PiPhone ships an update every 4 days, and Open Invoice & Estimate Maker every 3 weeks. Most recently, PiPhone was updated on October 8, 2026 and Open Invoice & Estimate Maker on October 25, 2026.

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