Comparison

FaxFlow vs Sunstar Driver

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

Head to head
About

FaxFlow

Transform your iPhone or iPad into a portable fax machine. Easily scan documents, attach files, and send faxes worldwide. Receive faxes directly to your device with instant notifications and delivery confirmations.

Highlights
  • Send faxes globally
  • Receive faxes with notifications
  • Scan documents with camera
  • Attach PDF, JPG, PNG files
  • Add custom cover pages
  • Delivery confirmation receipts
  • Automatic retry for failed faxes
Features
Currently charting
Read full description

Send and receive faxes from your iPhone. No fax machine, no landline. FaxFlow turns your iPhone or iPad into a fax line: scan a document with your camera, enter the recipient's fax number, and it's delivered — with a confirmation you can keep. What you can do • Send faxes to any fax number in the US, Canada, and worldwide • Get your own US fax number and receive faxes with instant notifications • Scan paper documents with automatic edge detection and cleanup • Attach PDF, JPG, and PNG files from your phone or the Files app • Add a cover page with your name, number, and a short message • Get delivery confirmation for every fax, with a receipt you can share • Failed fax? We retry automatically What people fax with FaxFlow Tax forms to the IRS, applications to government offices, prescriptions and records to doctors' offices, insurance claims, signed contracts, bank documents. If an office still asks for a fax, FaxFlow handles it from your phone in about a minute. Is it secure? Yes. Faxes are encrypted in transit and delivered over dedicated phone lines — often the very reason medical, legal, and government offices still rely on fax. What does it cost? The app is free to download — scanning, cover pages, and fax preparation cost nothing. Sending and receiving require a subscription, because every fax travels over real phone lines we pay to operate. Weekly, monthly, and annual plans are available, and you can cancel anytime. Need just one fax? Take a weekly plan, send it, and cancel — no further charges. Questions? Reach us in the app under Settings → Contact Us, or at www.fax-flow.com. Real humans answer. Privacy Policy: https://fax-flow.com/privacy-policy Terms of Use: https://fax-flow.com/terms-of-use

About

Sunstar Driver

Features
Read full description

Sunstar Driver is a professional logistics driver app designed to simplify and streamline daily delivery and container transportation operations.

Screenshots

FaxFlow4 screens
Sunstar Driver4 screens

Verdict

The call

The clearest difference is in-app purchases: Sunstar Driver at none against FaxFlow's 10. FaxFlow's advantage is update cadence (every 3 weeks vs every 3 months) and chart position (#53 vs unranked). On price, ads, device support and iOS requirement 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. FaxFlow sells 10 in-app purchases, starting at $9.99 per 7 days. Sunstar Driver asks for nothing beyond the download.

UpkeepUpdate frequency

FaxFlow ships an update every 3 weeks, Sunstar Driver every 3 months. The most recent releases landed on November 13, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 8 level
FaxFlow versus Sunstar Driver: the parameters behind the verdict, then further details
ParameterFaxFlowSunstar Driver
PriceFreeFree
Rating4.9 (8.3K ratings) — better—
Positive reviews66.8% of reviews—
Number of ratings8.3K — better—
Update frequencyEvery 3 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
Best chart rank#53 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.014.0.0 — better
Further details — not scored
Size95 MB44 MB
Age rating17+4+
DeveloperMobile Flow LtdSunstar Logistics Inc.

Bugs and requests

FaxFlow

Reported bugs

3 issues
  • Google verification not working
  • Scanning issues clipping documents
  • Faxes failing to deliver

Requested features

2 requests
  • Dark mode option
  • Clearer subscription information upfront

Sunstar Driver

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

FaxFlow

Subscriptions7
  • FaxFlow Premium Weekly Plan$9.997 Days
  • FaxFlow Weekly - Send & Receive$14.997 Days
  • FaxFlow Premium Monthly Plan$24.991 Month
Show 4 more
  • FaxFlow Monthly - Send & Receive$34.991 Month
  • FaxFlow Premium Quarterly Plan$59.993 Months
  • FaxFlow Premium Annual Plan$149.991 Year
  • FaxFlow Annual - Send & Receive$199.991 Year
One-time3
  • FaxFlow - 10 Fax Pages Credit$14.99
  • FaxFlow - 25 Fax Pages Credit$29.99
  • FaxFlow - 50 Fax Pages Credit$49.99
None

Sunstar Driver

No in-app purchases

Questions

Is FaxFlow free?
FaxFlow is free to download, with in-app purchases available.
Is Sunstar Driver free?
Sunstar Driver is free to download, with no in-app purchases.
Do FaxFlow or Sunstar Driver have ads?
Neither FaxFlow nor Sunstar Driver shows ads.
Which is updated more often, FaxFlow or Sunstar Driver?
FaxFlow ships an update every 3 weeks, and Sunstar Driver every 3 months. Most recently, FaxFlow was updated on November 13, 2026 and Sunstar Driver on October 31, 2026.

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