# Perfect OCR vs Diary Calendar

The clearest difference is review sentiment: Perfect OCR at 65% against Diary Calendar's 33%. Perfect OCR also leads on price ($0.99 vs $2.99). Diary Calendar's advantage is iOS requirement (12.0 vs 16). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

Perfect OCR costs $0.99 and Diary Calendar $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Perfect OCR ships an update every 2 months, Diary Calendar every 3 months. Both last shipped on September 30, 2026.

## The numbers

| Metric | Perfect OCR | Diary Calendar |
| --- | --- | --- |
| Price | **$0.99** | $2.99 |
| Rating | **[4.7 (118 ratings)](https://appshunter.io/ios/app/perfect-ocr/id363095388/reviews)** | — |
| Number of ratings | **118** | — |
| Positive reviews | **64.5% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Paid | Paid |
| Size | 25 MB | 14 MB |
| Requires iOS | 16 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Piksoft Inc.](https://appshunter.io/developer/342548959) | [Hans Joachim Gerhardt](https://appshunter.io/developer/320239954) |

## What reviewers say

### Perfect OCR

[App page](https://appshunter.io/ios/app/perfect-ocr/id363095388)

Scan and convert documents into editable text with high accuracy. This app offers advanced image processing for clear scans, supports multiple languages for OCR, and allows easy sharing of documents as PDFs or text files. All processing is done offline for enhanced privacy.

**Highlights:** High-accuracy OCR for documents, Advanced image processing for clear scans, Email documents as PDF with text or image, Offline processing for data privacy, Multi-language OCR support, Automatic document edge detection, SureScan mode for jitter-free images

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Accurate OCR
- 👍 Easy to use
- 📤 Useful for scanning and emailing documents
- 🔍 Good for capturing text from books and documents
- 💡 Helpful for students and professionals

**What reviewers complain about**

- 🐛 Crashes and low memory issues on older devices
- 🔍 Struggles with handwriting, low quality images, and complex layouts
- 🔍 Limited language support
- 🔍 Occasional errors in OCR output

**Reported bugs**

- Crashes on iOS 4 devices
- Issues with image capture and orientation
- Inconsistent OCR performance

**Requested features**

- Support for more languages
- Improved OCR accuracy
- Ability to process multiple pages at once
- Integration with cloud storage and productivity apps
- Spell check and editing tools


### Diary Calendar

[App page](https://appshunter.io/ios/app/diary-calendar/id397426336)

This calendar app supports the ICS standard for seamless integration with PC calendar software like Outlook and Lightning. It offers detailed date and monthly overviews, allows for time zone-specific appointments, and enables the creation of both one-off and recurring events.

**Highlights:** ICS standard compatibility, Date and monthly overviews, Time zone management, Recurring event creation, Searchable appointment list, External data storage

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Perfect OCR free?

Perfect OCR costs $0.99, with no in-app purchases.

### Is Diary Calendar free?

Diary Calendar costs $2.99, with no in-app purchases.

### Do Perfect OCR or Diary Calendar have ads?

Neither Perfect OCR nor Diary Calendar shows ads.

### Which is updated more often, Perfect OCR or Diary Calendar?

Perfect OCR ships an update every 2 months, and Diary Calendar every 3 months. Most recently, Perfect OCR was updated on September 30, 2026 and Diary Calendar on September 30, 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.*