# Doc Scanner PDF, Convert & OCR vs Invoice Maker・Estimate App

The clearest difference is monetization model: Doc Scanner PDF, Convert & OCR at free with in-app purchases against Invoice Maker・Estimate App's subscription. Doc Scanner PDF, Convert & OCR also leads on review sentiment (93% vs 60%). Invoice Maker・Estimate App's advantage is update cadence (every 3 days vs monthly) and rating (4.9 vs 4.7). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Doc Scanner PDF, Convert & OCR sells 13 in-app purchases, starting at $4.99 per 7 days 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 4.7. Both are backed by a comparable volume of ratings — 475 and 201 respectively. Written reviews complicate that: 93% of Doc Scanner PDF, Convert & OCR's written reviews are positive against 60% of Invoice Maker・Estimate App's, so the app with the better star average is not the one people write more warmly about.

Doc Scanner PDF, Convert & OCR ships an update monthly, Invoice Maker・Estimate App every 3 days. The most recent releases landed on September 23, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Doc Scanner PDF, Convert & OCR | Invoice Maker・Estimate App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (475 ratings)](https://appshunter.io/ios/app/doc-scanner-pdf-convert-and-ocr/id6443812062/reviews) | **[4.9 (201 ratings)](https://appshunter.io/ios/app/invoice-makerestimate-app/id6739814340/reviews)** |
| Number of ratings | **475** | 201 |
| Positive reviews | **93.3% of reviews** | 60.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 171 MB | 18 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Ruslan Khalikov](https://appshunter.io/developer/1086759766) | [Dynamic Falcon](https://appshunter.io/developer/1221926593) |

## What reviewers say

### Doc Scanner PDF, Convert & OCR

[App page](https://appshunter.io/ios/app/doc-scanner-pdf-convert-and-ocr/id6443812062)

Transform your smartphone into a portable scanner to digitize documents, receipts, and contracts. Easily edit, sign, and share multipage PDFs and images in various formats. Features AI-powered text extraction, translation, and document conversion.

**Highlights:** Instant document scanning, AI text editing and summarization, Multilingual text translation, Convert documents to PDF, DOCX, JPG, PNG, and more, Optical Character Recognition (OCR), E-signature functionality, Multi-page scanning

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Scanius Pro (All access) | $4.99 | per 7 days |
| All access (monthly) | $4.99 | per month |
| Scanius Pro (All access) | $6.99 | per 7 days |
| All access (monthly) | $6.99 | per month |
| Scanius Pro (All access) | $6.99 | per month |
| All access (monthly) | $9.99 | per month |
| All access (1 month) | $9.99 | per month |
| All access (weekly) | $9.99 | per 7 days |
| All access (monthly) | $9.99 | per month |
| Scanius Pro (All access) | $24.99 | per 6 months |
| All access (yearly) | $29.99 | per year |
| All access (yearly) | $49.99 | per year |
| All access (year) | $59.99 | per year |

**What reviewers like**

- 🚀 Fast scanning
- 👍 Simple and intuitive design
- 🔒 Secure document storage
- 💡 Useful AI features
- 👍 Responsive support

**What reviewers complain about**

- 🐛 Occasional crashes
- 🔋 Large file sizes take up storage
- 🔒 Difficulty cancelling subscription

**Reported bugs**

- Login screen freezes
- Incompatibility with older devices

**Requested features**

- Add cloud storage integration
- Implement document sharing and collaboration
- Expand OCR and text editing capabilities
- Develop web and iPad versions
- Introduce password protection for folders


### 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 Doc Scanner PDF, Convert & OCR free?

Doc Scanner PDF, Convert & OCR 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, Doc Scanner PDF, Convert & OCR or Invoice Maker・Estimate App?

Invoice Maker・Estimate App is rated higher. Doc Scanner PDF, Convert & OCR averages 4.7 out of 5 from 475 ratings, while Invoice Maker・Estimate App averages 4.9 from 201 ratings.

### Do Doc Scanner PDF, Convert & OCR or Invoice Maker・Estimate App have ads?

Neither Doc Scanner PDF, Convert & OCR nor Invoice Maker・Estimate App shows ads.

### Which is updated more often, Doc Scanner PDF, Convert & OCR or Invoice Maker・Estimate App?

Doc Scanner PDF, Convert & OCR ships an update monthly, and Invoice Maker・Estimate App every 3 days. Most recently, Doc Scanner PDF, Convert & OCR was updated on September 23, 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.*