# InvertKeep vs XenoKeeper

The clearest difference is ads: InvertKeep at none against XenoKeeper's shown. XenoKeeper's advantage is iOS requirement (17.0 vs 26.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. InvertKeep sells 1 one-off in-app purchase and XenoKeeper sells 4 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

InvertKeep ships an update fortnightly, XenoKeeper every 8 days. The most recent releases landed on October 9, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | InvertKeep | XenoKeeper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/xenokeeper-exotic-pet-tracker/id6778471543/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 8 days** |
| Monetization | — | Free with in-app purchases |
| Size | 361 MB | 71 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [JARED WILLIAM COFFMAN](https://appshunter.io/developer/1895897887) | [Polite Cactus, LLC](https://appshunter.io/developer/6778471545) |

## What reviewers say

### InvertKeep

[App page](https://appshunter.io/ios/app/invertkeep/id6777580871)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| InvertKeep Pro | $4.99 | one-time |


### XenoKeeper

[App page](https://appshunter.io/ios/app/xenokeeper-exotic-pet-tracker/id6778471543)

Manage all your exotic pets in one comprehensive field journal. Track feedings, molts, growth, and habitat conditions for a wide variety of species. Works offline and offers optional cloud sync for your data.

**Highlights:** Multi-species pet tracking, Phase-aware feeding logs, 23 event types with start/end phases, Growth and measurement tracking, Habitat condition monitoring, QR code generation for quick access, Colony management

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| XenoKeeper Pro (Founder) | $3.99 | per month |
| XenoKeeper Pro+ (Founder) | $5.99 | per month |
| XenoKeeper Pro Annual (Founder) | $39.99 | per year |
| XenoKeeper Pro+ Annual (Founder) | $59.99 | per year |


## Frequently asked questions

### Is InvertKeep free?

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

### Is XenoKeeper free?

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

### Do InvertKeep or XenoKeeper have ads?

XenoKeeper shows ads; InvertKeep does not.

### Which is updated more often, InvertKeep or XenoKeeper?

InvertKeep ships an update fortnightly, and XenoKeeper every 8 days. Most recently, InvertKeep was updated on October 9, 2026 and XenoKeeper on October 3, 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.*