# Bookends vs Nuj Habits

The clearest difference is price: Bookends at Free against Nuj Habits's $0.99. Bookends also leads on ratings volume (400 vs 3). Nuj Habits's advantage is in-app purchases (none vs 2) and review sentiment (100% vs 76%). On ads, device support and iOS requirement there is nothing between them.

Bookends is free to download; Nuj Habits costs $0.99 up front. Bookends sells 2 in-app purchases, starting at $14.99 per year. Nuj Habits asks for nothing beyond the download.

Nuj Habits holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Bookends has 400 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 76% of Bookends's written reviews are positive against 100% of Nuj Habits's.

Bookends ships an update every 2 months, Nuj Habits fortnightly. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Bookends | Nuj Habits |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [4.7 (400 ratings)](https://appshunter.io/ios/app/bookends/id739087947/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/nuj-habits/id6737652459/reviews)** |
| Number of ratings | **400** | 3 |
| Positive reviews | 76.4% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 114 MB | 11 MB |
| Requires iOS | 18.6 | **18.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sonny Software, LLC](https://appshunter.io/developer/417583547) | [Adam Raabe](https://appshunter.io/developer/1645371390) |

## What reviewers say

### Bookends

[App page](https://appshunter.io/ios/app/bookends/id739087947)

Manage your research references and PDFs on your mobile device. Search online databases, import metadata, annotate PDFs, and organize your library. Offers basic functionality for free with optional one-time purchase and yearly subscription for advanced features like cloud sync and unlimited imports.

**Highlights:** Search online reference databases, Import metadata and PDFs, PDF annotation and markup, Barcode scanning for references, Cloud sync across devices, Share online libraries, Create multiple libraries

**Features:** Family Sharing, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $14.99 | per year |
| Standard | $14.99 | one-time |

**What reviewers like**

- 🚀 Seamless sync across devices
- 👍 Excellent PDF annotation tools
- 🔒 Reliable and stable
- 💡 Powerful reference management features
- 👍 Responsive and helpful developer support

**What reviewers complain about**

- 🐛 Sync issues with iCloud and PDF files
- 🔒 Subscription model for essential features
- 👎 Outdated and clunky user interface
- 🔒 Limited functionality on iOS without subscription

**Reported bugs**

- Incompatibility with iCloud Optimized Storage
- Unreliable sync between desktop and mobile versions
- Occasional data loss or corruption

**Requested features**

- Nested folders and tags for better organization
- Automatic PDF metadata extraction
- Improved search and filtering capabilities
- Seamless integration with third-party services


### Nuj Habits

[App page](https://appshunter.io/ios/app/nuj-habits/id6737652459)

Build and maintain habits with a unique visual approach. Each habit is represented by a plant that grows and changes color based on its status. Track your progress with a visual calendar and receive notifications to keep your habits thriving.

**Highlights:** Habit-based plant growth, Color-coded habit status, Long-press habit completion, Visual habit calendar, Customizable intervals, Habit notifications, Import/export habits

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Bookends free?

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

### Is Nuj Habits free?

Nuj Habits costs $0.99, with no in-app purchases.

### Which has better reviews, Bookends or Nuj Habits?

Nuj Habits is rated higher. Bookends averages 4.7 out of 5 from 400 ratings, while Nuj Habits averages 5.0 from 3 ratings.

### Do Bookends or Nuj Habits have ads?

Neither Bookends nor Nuj Habits shows ads.

### Which is updated more often, Bookends or Nuj Habits?

Bookends ships an update every 2 months, and Nuj Habits fortnightly. Most recently, Bookends was updated on October 23, 2026 and Nuj Habits on October 24, 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.*