# HabiTimer vs PDFOptim

The clearest difference is price: PDFOptim at Free against HabiTimer's $0.99. PDFOptim also leads on update cadence (every 5 months vs every 28 months) and ratings volume (292 vs 9). HabiTimer's advantage is in-app purchases (none vs 3) and rating (4.9 vs 4.7). On review sentiment, ads and iOS requirement there is nothing between them.

PDFOptim is free to download; HabiTimer costs $0.99 up front. PDFOptim sells 3 in-app purchases, starting at $0.99 per month. HabiTimer asks for nothing beyond the download.

HabiTimer holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: PDFOptim has 292 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 79% of HabiTimer's written reviews are positive against 76% of PDFOptim's.

HabiTimer ships an update every 28 months, PDFOptim every 5 months. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | HabiTimer | PDFOptim |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.9 (9 ratings)](https://appshunter.io/ios/app/habitimer/id377342642/reviews)** | [4.7 (292 ratings)](https://appshunter.io/ios/app/pdfoptim/id903356489/reviews) |
| Number of ratings | 9 | **292** |
| Positive reviews | **79.2% of reviews** | 75.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 28 months | **Every 5 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 19 MB | 8 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Arciem LLC](https://appshunter.io/developer/293633017) | [RootRise Technologies Pvt. Ltd.](https://appshunter.io/developer/594431033) |

## What reviewers say

### HabiTimer

[App page](https://appshunter.io/ios/app/habitimer/id377342642)

This app provides customizable daily reminders for frequent tasks. Set alarms for medications, breaks, meals, or any habit you want to track. Notifications work even when the app is not active, ensuring you never miss a task.

**Highlights:** Customizable daily reminders, Background notifications, Flexible alarm scheduling, Task postponement feature, Individual and master alarm control, Repeat daily until changed

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

**In-app purchases:** none


### PDFOptim

[App page](https://appshunter.io/ios/app/pdfoptim/id903356489)

Easily compress and optimize PDF files on your iPhone and iPad. Reduce the size of large documents, saving storage space and transmission time. Offers both automatic and manual compression modes with advanced settings for image and vector graphics.

**Highlights:** Compress PDF documents, Optimize PDF files, Automatic compression mode, Manual compression mode, Adjust image resolution and quality, Optimize vector graphics, Support for password-protected PDFs

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium : Monthly Access | $0.99 | per month |
| Premium : Yearly Access | $2.99 | per year |
| Premium : Lifetime Access | $4.99 | one-time |

**What reviewers like**

- 👍 Excellent compression quality
- 🚀 Efficient and fast performance
- 👍 Simple and easy to use
- 💰 Good value for money (one-time purchase)
- 👍 No annoying subscriptions

**What reviewers complain about**

- 🐛 App not launching/freezing
- 🐛 Doesn't work for certain file types (e.g., GoodNotes)
- 🐛 Poor image quality/pixelation
- 🐛 Compression not effective on all PDFs
- 🐛 Confusing or illogical interface

**Reported bugs**

- App not launching on iOS 18.0.1
- App freezes during launch
- App won't take purchases
- Cannot optimize certain PDFs
- Compression not effective on marked-up PDFs

**Requested features**

- Support for iOS shortcuts
- macOS version integration/cross-platform compatibility
- Improved handling of specific file types like GoodNotes
- Better optimization for handwritten notes within PDFs
- Cloud storage for compressed documents (iCloud)


## Frequently asked questions

### Is HabiTimer free?

HabiTimer costs $0.99, with no in-app purchases.

### Is PDFOptim free?

PDFOptim is free to download, with in-app purchases available.

### Which has better reviews, HabiTimer or PDFOptim?

HabiTimer is rated higher. HabiTimer averages 4.9 out of 5 from 9 ratings, while PDFOptim averages 4.7 from 292 ratings.

### Do HabiTimer or PDFOptim have ads?

Neither HabiTimer nor PDFOptim shows ads.

### Which is updated more often, HabiTimer or PDFOptim?

HabiTimer ships an update every 28 months, and PDFOptim every 5 months. Most recently, HabiTimer was updated on October 16, 2026 and PDFOptim on October 14, 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.*