# Learn Hadoop & Big Data vs Learn Bootstrap CSS Offline

The clearest difference is update cadence: Learn Bootstrap CSS Offline at every 14 months against Learn Hadoop & Big Data's every 31 months. Learn Hadoop & Big Data's advantage is price ($1.99 vs $2.99) and iOS requirement (13.0 vs 17). On ads, in-app purchases and device support there is nothing between them.

Learn Hadoop & Big Data costs $1.99 and Learn Bootstrap CSS Offline $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Learn Hadoop & Big Data ships an update every 31 months, Learn Bootstrap CSS Offline every 14 months. The most recent releases landed on September 9, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Learn Hadoop & Big Data | Learn Bootstrap CSS Offline |
| --- | --- | --- |
| Price | **$1.99** | $2.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 31 months | **Every 14 months** |
| Size | 38 MB | 177 MB |
| Requires iOS | **13.0** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [Muhammad Mubeen](https://appshunter.io/developer/1553722821) | [Shahbaz Khan](https://appshunter.io/developer/1479963383) |

## What reviewers say

### Learn Hadoop & Big Data

[App page](https://appshunter.io/ios/app/learn-hadoop-and-big-data/id1562810973)

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

**In-app purchases:** none


### Learn Bootstrap CSS Offline

[App page](https://appshunter.io/ios/app/learn-bootstrap-css-offline/id6480582193)

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

**In-app purchases:** none


## Frequently asked questions

### Is Learn Hadoop & Big Data free?

Learn Hadoop & Big Data costs $1.99, with no in-app purchases.

### Is Learn Bootstrap CSS Offline free?

Learn Bootstrap CSS Offline costs $2.99, with no in-app purchases.

### Do Learn Hadoop & Big Data or Learn Bootstrap CSS Offline have ads?

Neither Learn Hadoop & Big Data nor Learn Bootstrap CSS Offline shows ads.

### Which is updated more often, Learn Hadoop & Big Data or Learn Bootstrap CSS Offline?

Learn Hadoop & Big Data ships an update every 31 months, and Learn Bootstrap CSS Offline every 14 months. Most recently, Learn Hadoop & Big Data was updated on September 9, 2026 and Learn Bootstrap CSS Offline on September 11, 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.*