# Little Architect. vs Modstack

Little Architect. and Modstack are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Little Architect. sells 1 in-app purchase, starting at $2.99 per 7 days and Modstack sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Little Architect. ships an update every 2 weeks, Modstack every 8 days. The most recent releases landed on September 15, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Little Architect. | Modstack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 8 days** |
| Size | 33 MB | 30 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | +4 | 4+ |
| Developer | [Mustafa Demir](https://appshunter.io/developer/1658314272) | [NovoBuild LLC](https://appshunter.io/developer/1784126512) |

## What reviewers say

### Little Architect.

[App page](https://appshunter.io/ios/app/little-architect/id6773233098)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $2.99 | per 7 days |


### Modstack

[App page](https://appshunter.io/ios/app/modstack-programming-puzzle/id6803866356)

**Features:** Family Sharing

**In-app purchases (1)**

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


## Frequently asked questions

### Is Little Architect. free?

Little Architect. is free to download, with in-app purchases available.

### Is Modstack free?

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

### Do Little Architect. or Modstack have ads?

Neither Little Architect. nor Modstack shows ads.

### Which is updated more often, Little Architect. or Modstack?

Little Architect. ships an update every 2 weeks, and Modstack every 8 days. Most recently, Little Architect. was updated on September 15, 2026 and Modstack on September 24, 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.*