# Tarantuverse vs IsoSphere

The clearest difference is in-app purchases: IsoSphere at none against Tarantuverse's 2. IsoSphere also leads on update cadence (every 3 days vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Tarantuverse sells 2 in-app purchases, starting at $4.99 per month. IsoSphere asks for nothing beyond the download.

Tarantuverse ships an update monthly, IsoSphere every 3 days. The most recent releases landed on August 6, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Tarantuverse | IsoSphere |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tarantuverse/id6756224640/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | Freemium | — |
| Size | 37 MB | 41 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Cory Wilson](https://appshunter.io/developer/1859336243) | [Adrian Krzewinski](https://appshunter.io/developer/6788739110) |

## What reviewers say

### Tarantuverse

[App page](https://appshunter.io/ios/app/tarantuverse/id6756224640)

This app helps tarantula keepers meticulously log and manage their collection. Track feedings, molts, enclosure details, and breeding projects with smart reminders and analytics. Connect with a community of fellow enthusiasts and access a comprehensive species library.

**Highlights:** Log feedings, molts, and care notes, Track enclosure setup and breeding projects, Premolt prediction algorithm, Smart feeding reminders, Species library with care sheets, QR enclosure labels for guest uploads, Community forums and direct messaging

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $4.99 | per month |
| Premium Yearly | $44.99 | per year |


### IsoSphere

[App page](https://appshunter.io/ios/app/isosphere/id6788739108)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Tarantuverse free?

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

### Is IsoSphere free?

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

### Do Tarantuverse or IsoSphere have ads?

Neither Tarantuverse nor IsoSphere shows ads.

### Which is updated more often, Tarantuverse or IsoSphere?

Tarantuverse ships an update monthly, and IsoSphere every 3 days. Most recently, Tarantuverse was updated on August 6, 2026 and IsoSphere on September 13, 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.*