# Modstack — Stack commands. Solve logic.

> Stack commands. Solve logic. (iPhone/iPad app by NovoBuild LLC.)

- Source: https://appshunter.io/ios/app/modstack/id6803866356 (this page in markdown: same URL + `.md`)
- Developer: [NovoBuild LLC](https://appshunter.io/developer/1784126512)
- Category: Games, Education, Puzzle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 30 MB
- Languages: American English
- Released: 2026-08-28
- Data updated: 2026-09-08
- User reviews in markdown: https://appshunter.io/ios/app/modstack/id6803866356/reviews.md

## What is Modstack?

Modstack is a tactile programming puzzle about making big moves with a small set of commands.

Place Move and Turn tiles into a program, stack modifiers to change what they do, then run your machine. Watch the robot execute each step, learn from the result, and compress your solution until it reaches par.

WHAT YOU GET

- 36 handcrafted campaign circuits across six chapters
- A gentle visual introduction to programs, repetition, and mirroring
- Ordered relays, switches, gates, and precision Expert Circuits
- Three deterministic Daily Circuit difficulties
- Layered hints that nudge without giving away the whole solution
- Offline play with progress stored on your device
- Purpose-built sound and haptic feedback
- No ads, no account, and no tracking

The Foundations chapter and Easy Daily are free. A single Full Game Unlock opens the remaining 30 campaign circuits plus Medium and Hard Daily. There is no subscription.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Unlock Full Modstack | $3.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-08-28

No release notes.

## More apps by NovoBuild LLC

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All apps by NovoBuild LLC: https://appshunter.io/developer/1784126512

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*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 2026-09-08.*