# Learn Bootstrap CSS Offline vs TriStack

The clearest difference is update cadence: TriStack at every 2 months against Learn Bootstrap CSS Offline's every 14 months. TriStack also leads on iOS requirement (15.1 vs 17). Learn Bootstrap CSS Offline's advantage is price ($2.99 vs $5.99). On ads, in-app purchases and device support there is nothing between them.

Learn Bootstrap CSS Offline costs $2.99 and TriStack $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Learn Bootstrap CSS Offline ships an update every 14 months, TriStack every 2 months. The most recent releases landed on September 11, 2026 and September 3, 2026 respectively.

## The numbers

| Metric | Learn Bootstrap CSS Offline | TriStack |
| --- | --- | --- |
| Price | **$2.99** | $5.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 2 months** |
| Size | 177 MB | 36 MB |
| Requires iOS | 17 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [Shahbaz Khan](https://appshunter.io/developer/1479963383) | [SimTeCon GmbH](https://appshunter.io/developer/1761797043) |

## What reviewers say

### 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


### TriStack

[App page](https://appshunter.io/ios/app/tristack/id6743567658)

**In-app purchases:** none


## Frequently asked questions

### Is Learn Bootstrap CSS Offline free?

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

### Is TriStack free?

TriStack costs $5.99, with no in-app purchases.

### Do Learn Bootstrap CSS Offline or TriStack have ads?

Neither Learn Bootstrap CSS Offline nor TriStack shows ads.

### Which is updated more often, Learn Bootstrap CSS Offline or TriStack?

Learn Bootstrap CSS Offline ships an update every 14 months, and TriStack every 2 months. Most recently, Learn Bootstrap CSS Offline was updated on September 11, 2026 and TriStack on September 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*