# Tern Explore 3D vs SpoolThreStu

Tern Explore 3D and SpoolThreStu 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. Neither carries in-app purchases, so what you see is what you pay.

Tern Explore 3D ships an update weekly, SpoolThreStu every 9 days. The most recent releases landed on September 28, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Tern Explore 3D | SpoolThreStu |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Weekly** | Every 9 days |
| Size | 135 MB | 40 MB |
| Requires iOS | 15.0 | **14** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [艳 熊](https://appshunter.io/developer/1852689595) | [Kamini Triparthy](https://appshunter.io/developer/1872562141) |

## What reviewers say

### Tern Explore 3D

[App page](https://appshunter.io/ios/app/tern-explore-3d-discovery-game/id6757153870)

**Features:** macOS Compatibility

**In-app purchases:** none


### SpoolThreStu

[App page](https://appshunter.io/ios/app/spoolthrestu/id6758364404)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Tern Explore 3D free?

Tern Explore 3D is free to download, with no in-app purchases.

### Is SpoolThreStu free?

SpoolThreStu is free to download, with no in-app purchases.

### Do Tern Explore 3D or SpoolThreStu have ads?

Both Tern Explore 3D and SpoolThreStu show ads.

### Which is updated more often, Tern Explore 3D or SpoolThreStu?

Tern Explore 3D ships an update weekly, and SpoolThreStu every 9 days. Most recently, Tern Explore 3D was updated on September 28, 2026 and SpoolThreStu on October 1, 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.*