# jinnlabs vs MD Preview

The clearest difference is in-app purchases: jinnlabs at none against MD Preview's 1. MD Preview's advantage is update cadence (every 2 days vs fortnightly) and ratings volume (28 vs 1). On price, rating, ads and device support there is nothing between them.

Both are free to download. MD Preview sells 1 one-off in-app purchase. jinnlabs asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for jinnlabs against 5.0 for MD Preview. That said, the two scores are not equally well evidenced: MD Preview has 28 ratings behind it against 1, so its average is the more settled of the two.

jinnlabs ships an update fortnightly, MD Preview every 2 days. The most recent releases landed on October 9, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | jinnlabs | MD Preview |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/jinnlabs/id6745225599/reviews) | [5.0 (28 ratings)](https://appshunter.io/ios/app/md-preview/id6759583159/reviews) |
| Number of ratings | 1 | **28** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 51 MB | 5 MB |
| Requires iOS | **15.1** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [JinnLabs](https://appshunter.io/developer/1811380951) | [Gejun Zhu](https://appshunter.io/developer/1879637857) |

## What reviewers say

### jinnlabs

[App page](https://appshunter.io/ios/app/jinnlabs/id6745225599)

This app uses AI-powered video intelligence to help retailers detect and prevent theft. It provides real-time alerts and actionable insights to improve store operations and reduce losses.

**Highlights:** AI-powered video intelligence, Real-time theft alerts, Actionable operational insights, Store operations improvement, Loss reduction

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

**In-app purchases:** none


### MD Preview

[App page](https://appshunter.io/ios/app/md-preview/id6759583159)

This app provides a clean and elegant way to read markdown files from various cloud storage services. It offers beautiful formatting, syntax highlighting for numerous programming languages, and customizable themes. An optional one-time purchase unlocks additional features like PDF export and custom font sizes.

**Highlights:** Open .md files from cloud storage, Beautifully formatted markdown rendering, Syntax highlighting for 180+ languages, Toggle between preview and raw markdown, Collapsible table of contents, 6 free reading themes, Export to PDF (premium)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MD Preview Premium | $2.99 | one-time |


## Frequently asked questions

### Is jinnlabs free?

jinnlabs is free to download, with no in-app purchases.

### Is MD Preview free?

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

### Which has better reviews, jinnlabs or MD Preview?

jinnlabs and MD Preview are both rated 5.0 out of 5 on the App Store, from 1 and 28 ratings respectively.

### Do jinnlabs or MD Preview have ads?

Neither jinnlabs nor MD Preview shows ads.

### Which is updated more often, jinnlabs or MD Preview?

jinnlabs ships an update fortnightly, and MD Preview every 2 days. Most recently, jinnlabs was updated on October 9, 2026 and MD Preview on October 15, 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.*