# Parquet Viewer — Open & query Parquet, CSV, SQL

> Mobile application for reading and querying Parquet files. (iPhone/iPad app by An Sinh Pham.)

- Source: https://appshunter.io/ios/app/parquet-viewer/id1644790888 (this page in markdown: same URL + `.md`)
- Developer: [An Sinh Pham](https://appshunter.io/developer/1475832880)
- Category: Developer Tools, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 56 MB
- Languages: American English
- Released: 2022-10-16
- Data updated: 2026-08-30
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/parquet-viewer/id1644790888/reviews.md

## What is Parquet Viewer?

Parquet Viewer is a fast and easy parquet file reader. It lets you read parquet files directly on your iPhone/iPad. Perfect for a quick viewing of your parquet files, no need to fiddle with any programming libraries.

Features:
- Open & view data in parquet files
- Query data using SQL

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Open and view Parquet files
- Query data using SQL
- Directly on iPhone/iPad
- No programming libraries needed

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Pro Monthly | $9.99 | per month |
| Pro Annual | $79.99 | per year |
| Pro Weekly | $4.99 | per 7 days |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 10 Credits | $4.99 | one-time |
| 30 Credits | $9.99 | one-time |
| 100 Credits | $29.99 | one-time |


## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/parquet-viewer/id1644790888/reviews.md

### 1/5 — Can’t open local parquet files

*2026-07-03*

I was hoping things had improved, but it seems not. Opened the app, dropped a .parquet file where it said, got 3 alerts about a duckdb plugin which I accepted, then the viewer window opened with an “Unable to open this Parquet data” error.

### 1/5 — DELETE ME

*2026-03-12*

This thing needs to be deleted off the store

### 1/5 — Simply does not work

*2025-02-03*

It does not work for parquet files with 16 records and not record. I tested with a very simple schema

### 1/5 — Unusable

*2023-07-12*

Seems hastily put together. Cant open multiple files. UI is pretty but unintuitive. Most every feature is hidden in the pay-wall. Terrible all around.

### 1/5 — Can't open parquet files written by pyarrow

*2023-04-04*

I can't get this app to work. It won't open parquet files written by pandas --> pyarrow --> parquet.

There also seems to be some sort of subscription model which isn't obvious from the app store.

### 1/5 — Virtually unusable without purchasing credits to run queries

*2023-01-15*

This has to be a joke. The screenshots don't show this, but you have to buy credits/subscription to run queries. If you don't pay, you can only page through your file and 100 records at a time. Given that the parquet format is specifically used for large volumes of data, it renders the free version of the app useless.

## Frequently asked questions about Parquet Viewer

### What is Parquet Viewer?

Parquet Viewer is a mobile application designed to let you open and view data within Parquet files directly on your iPhone or iPad. It allows you to query this data using SQL without needing to install any programming libraries.

### Does Parquet Viewer have ads?

No, Parquet Viewer does not contain advertisements. The app is free to download and use, with optional in-app purchases for subscription plans.

### What are the subscription options for Parquet Viewer?

Parquet Viewer offers three subscription plans: Unlimited Weekly for $4.99/P7D with a 3-day free trial, Unlimited Monthly for $9.99/P1M with a 7-day free trial, and Unlimited Annually for $79.99/P1Y with a 1-month free trial.

### On which devices can I use Parquet Viewer?

Parquet Viewer is compatible with Mac, iPhone, iPad, and iPod devices. It is designed to provide a seamless experience across the Apple ecosystem.

### How often is Parquet Viewer updated?

The latest version of Parquet Viewer is 2.7, which was last updated on February 21, 2024. Updates typically include performance improvements and new features.

### What is the age rating for Parquet Viewer?

Parquet Viewer has an age rating of 4+. This indicates that the content is suitable for children and adults, with no mature themes or potentially objectionable material.

### Can I query data in Parquet files with Parquet Viewer?

Yes, Parquet Viewer allows you to query data within your Parquet files using SQL. This feature enables you to extract specific information without needing to export the data to another application.

## Version history (last 5 releases)

### 2.7 — 2024-02-21

Bug fixes

### 2.6 — 2024-02-20

- Bug fixes
- UI improvements
- Performance improvements

### 1.3 — 2023-01-15

- Bug fixes
- Support more parquet files

### 1.2 — 2022-12-15

- SQL querying

### 1.1 — 2022-10-24

No release notes.

## More apps by An Sinh Pham

- [Winmail File Viewer & Opener](https://appshunter.io/ios/app/winmail-file-viewer-and-opener/id379500151)
- [Archive Extractor: Unzip Files](https://appshunter.io/ios/app/archive-extractor-unzip-files/id1478494515)
- [Truth or Dare: Late Night](https://appshunter.io/ios/app/truth-or-dare-late-night/id6474071612)
- [Would You Rather: After Dark](https://appshunter.io/ios/app/would-you-rather-after-dark/id6742191962)
- [AImagify: AI Photo Editor](https://appshunter.io/ios/app/aimagify-ai-photo-editor/id6751795377)

All apps by An Sinh Pham: https://appshunter.io/developer/1475832880

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-30.*