# Margins vs KMK Optometry Pages

The clearest difference is review sentiment: Margins at 95% against KMK Optometry Pages's 33%. Margins also leads on rating (4.9 vs 2.0) and update cadence (every 4 days vs every 2 months). KMK Optometry Pages's advantage is in-app purchases (none vs 2) and iOS requirement (14.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Margins sells 2 in-app purchases, starting at $5.99 per month. KMK Optometry Pages asks for nothing beyond the download.

Margins holds the better App Store score, 4.9 against 2.0. That said, the two scores are not equally well evidenced: Margins has 20K ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 95% of Margins's written reviews are positive against 33% of KMK Optometry Pages's.

Margins ships an update every 4 days, KMK Optometry Pages every 2 months. The most recent releases landed on October 19, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Margins | KMK Optometry Pages |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (20K ratings)](https://appshunter.io/ios/app/margins-book-tracker/id6737528718/reviews)** | [2.0 (5 ratings)](https://appshunter.io/ios/app/kmk-optometry-pages/id6745395673/reviews) |
| Number of ratings | **20K** | 5 |
| Positive reviews | **95.3% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#103** | — |
| Size | 115 MB | 77 MB |
| Requires iOS | 17.0 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Paratext Inc.](https://appshunter.io/developer/1724586882) | [KMK Optometry](https://appshunter.io/developer/1645627929) |

## What reviewers say

### Margins

[App page](https://appshunter.io/ios/app/margins-book-tracker/id6737528718)

**Currently charting:** #103 Top Free · Book (US App Store)

This app helps you discover, track, and share your reading journey. It offers detailed tracking options, customizable features, and powerful search capabilities. Stay focused on your reading goals with built-in tools to minimize distractions.

**Highlights:** Half-star ratings, Track recommendations, Customizable book covers, Fuzzy date tracking, Advanced book search, Reading goals, Reading timer, Distraction blocking

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $5.99 | per month |
| Annual | $59.99 | per year |

**What reviewers like**

- 👍 Easy to use
- 🎨 Aesthetically pleasing design
- 🔍 Helpful search and recommendation features
- 📚 Comprehensive book tracking capabilities
- 🔄 Smooth import from Goodreads

**What reviewers complain about**

- 🐛 Missing books in the database
- 🔍 Limited search and filtering options
- 🔒 Concerns about using phone number for sign-up
- 🔢 Lack of social features and community

**Reported bugs**

- Reading time not saving correctly
- Inability to delete or edit books from lists
- Inconsistent behavior when importing data from Goodreads

**Requested features**

- Add ability to track page progress and percentage read
- Implement a profile system with custom avatars and bios
- Introduce a social feed to share reading activity with friends
- Add more advanced statistics and reading analytics


### KMK Optometry Pages

[App page](https://appshunter.io/ios/app/kmk-optometry-pages/id6745395673)

This e-reader app helps optometry students study more efficiently. It offers a seamless reading experience for digital textbooks, an audiobook feature for hands-free learning, and AI-powered tools for summaries, clarifications, and comprehension questions.

**Highlights:** Seamless e-reader experience, Built-in audiobook feature, AI-powered summaries, AI-powered clarifications, AI-generated comprehension questions, Access to digital textbooks

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

**In-app purchases:** none


## Frequently asked questions

### Is Margins free?

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

### Is KMK Optometry Pages free?

KMK Optometry Pages is free to download, with no in-app purchases.

### Which has better reviews, Margins or KMK Optometry Pages?

Margins is rated higher. Margins averages 4.9 out of 5 from 20K ratings, while KMK Optometry Pages averages 2.0 from 5 ratings.

### Do Margins or KMK Optometry Pages have ads?

Neither Margins nor KMK Optometry Pages shows ads.

### Which is updated more often, Margins or KMK Optometry Pages?

Margins ships an update every 4 days, and KMK Optometry Pages every 2 months. Most recently, Margins was updated on October 19, 2026 and KMK Optometry Pages on October 16, 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.*