# iFax App Send Fax From iPhone vs Invoice Maker・Estimate App

The clearest difference is monetization model: iFax App Send Fax From iPhone at free with in-app purchases against Invoice Maker・Estimate App's subscription. iFax App Send Fax From iPhone also leads on ratings volume (37K vs 201) and chart position (#56 vs unranked). Invoice Maker・Estimate App's advantage is update cadence (every 3 days vs every 4 weeks) and rating (4.9 vs 4.6). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. iFax App Send Fax From iPhone sells 12 in-app purchases, starting at $4.99 per month and Invoice Maker・Estimate App sells 4 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Invoice Maker・Estimate App holds the better App Store score, 4.9 against 4.6. That said, the two scores are not equally well evidenced: iFax App Send Fax From iPhone has 37K ratings behind it against 201, so its average is the more settled of the two. Written reviews point the same way: 56% of iFax App Send Fax From iPhone's written reviews are positive against 60% of Invoice Maker・Estimate App's.

iFax App Send Fax From iPhone ships an update every 4 weeks, Invoice Maker・Estimate App every 3 days. The most recent releases landed on September 24, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | iFax App Send Fax From iPhone | Invoice Maker・Estimate App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (37K ratings)](https://appshunter.io/ios/app/ifax-app-send-fax-from-iphone/id331514859/reviews) | **[4.9 (201 ratings)](https://appshunter.io/ios/app/invoice-makerestimate-app/id6739814340/reviews)** |
| Number of ratings | **37K** | 201 |
| Positive reviews | 55.8% of reviews | **60.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 3 days** |
| Monetization | **Free with in-app purchases** | Subscription |
| Best chart rank | **#56** | — |
| Size | 137 MB | 18 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Crowded Road](https://appshunter.io/developer/289906242) | [Dynamic Falcon](https://appshunter.io/developer/1221926593) |

## What reviewers say

### iFax App Send Fax From iPhone

[App page](https://appshunter.io/ios/app/ifax-app-send-fax-from-iphone/id331514859)

**Currently charting:** #56 Top Grossing · Business (US App Store)

Transform your iPhone or iPad into a portable fax machine. Send and receive faxes securely and efficiently without needing an account or paperwork. Offers HIPAA-compliant, enterprise-grade features for both personal and business use.

**Highlights:** Send and receive faxes on the go, HIPAA & GLBA-compliant faxing, Cloud integration for documents, Secure 256-bit SSL encryption, Built-in document scanner, Multi-platform support (iPhone, iPad, Apple Watch, computer)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iFax Unlimited | $4.99 | per month |
| Receive Only Monthly | $9.99 | per month |
| Send Only Weekly | $9.99 | per 7 days |
| Unlimited Fax Number | $17.99 | per month |
| Free fax number - for 7 days | $17.99 | per month |
| iFax Unlimited | $24.99 | per month |
| iFax Monthly with 7-day trial | $24.99 | per month |
| Send Only Monthly | $27.99 | per month |
| Send Only Monthly | $34.99 | per month |
| Fax Number - Free for 7 days | $169.99 | per year |
| Plus Annual | $169.99 | per year |
| outbound fax | $0.99 | one-time |

**What reviewers like**

- 🚀 Fast and easy to use
- 👍 Excellent customer service
- 🚀 Convenient for sending faxes on the go
- 👍 Works well for personal/occasional faxing needs

**What reviewers complain about**

- 💰 Expensive subscription and per-fax costs
- 🐛 Technical issues like faxes not going through
- 🌎 Limited availability in some countries
- 🔒 Concerns about billing and cancellation process

**Reported bugs**

- Faxes not sending properly
- Subscription issues and unexpected charges
- App crashing or freezing

**Requested features**

- Pay-per-fax option instead of subscription
- Improve fax quality and reliability
- Expand availability to more countries


### Invoice Maker・Estimate App

[App page](https://appshunter.io/ios/app/invoice-makerestimate-app/id6739814340)

Create, send, and manage professional invoices, estimates, and receipts effortlessly. Designed for freelancers and small businesses, this tool helps you get paid faster and stay organized on the go.

**Highlights:** Create professional invoices, Send estimates and receipts, Convert estimates to invoices, Track invoices and payments, Manage client information, Send invoices via email/text

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $5.99 | per 7 days |
| Premium Weekly | $5.99 | per 7 days |
| Premium Monthly | $9.99 | per month |
| Premium Annually | $99.99 | per year |


## Frequently asked questions

### Is iFax App Send Fax From iPhone free?

iFax App Send Fax From iPhone is free to download, with in-app purchases available.

### Is Invoice Maker・Estimate App free?

Invoice Maker・Estimate App is free to download, with in-app purchases available.

### Which has better reviews, iFax App Send Fax From iPhone or Invoice Maker・Estimate App?

Invoice Maker・Estimate App is rated higher. iFax App Send Fax From iPhone averages 4.6 out of 5 from 37K ratings, while Invoice Maker・Estimate App averages 4.9 from 201 ratings.

### Do iFax App Send Fax From iPhone or Invoice Maker・Estimate App have ads?

Neither iFax App Send Fax From iPhone nor Invoice Maker・Estimate App shows ads.

### Which is updated more often, iFax App Send Fax From iPhone or Invoice Maker・Estimate App?

iFax App Send Fax From iPhone ships an update every 4 weeks, and Invoice Maker・Estimate App every 3 days. Most recently, iFax App Send Fax From iPhone was updated on September 24, 2026 and Invoice Maker・Estimate App on September 21, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*