# Cat Tracker 2 vs MemoryMap Archive

The clearest difference is in-app purchases: Cat Tracker 2 at none against MemoryMap Archive's 10. Cat Tracker 2 also leads on iOS requirement (12.0 vs 15.1). MemoryMap Archive's advantage is update cadence (every 2 months vs every 27 months). On price, ads and device support there is nothing between them.

Both are free to download. MemoryMap Archive sells 10 in-app purchases, starting at $14.99 per month. Cat Tracker 2 asks for nothing beyond the download.

Cat Tracker 2 ships an update every 27 months, MemoryMap Archive every 2 months. The most recent releases landed on October 20, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Cat Tracker 2 | MemoryMap Archive |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cat-tracker-2/id1572340472/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 27 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 57 MB | 50 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [AppHammer, LLC](https://appshunter.io/developer/1167531570) | [Transcontinental Transcription Company, LLC](https://appshunter.io/developer/1766298990) |

## What reviewers say

### Cat Tracker 2

[App page](https://appshunter.io/ios/app/cat-tracker-2/id1572340472)

This app helps researchers and enthusiasts understand the impact of domestic cats on native wildlife populations. It provides data to study cat population dynamics and their relationship with local ecosystems.

**Highlights:** Study cat population dynamics, Analyze impact on native wildlife, Data collection for research, Understand ecosystem relationships, Educational tool for conservation

**Features:** macOS Compatibility

**In-app purchases:** none


### MemoryMap Archive

[App page](https://appshunter.io/ios/app/memorymap-archive/id6749832336)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Custodian - Monthly | $14.99 | per month |
| Convo Transcription: 3 Hours | $3.99 | one-time |
| Bits | $3.99 | one-time |
| Deep Recall: 2 Hours | $6.99 | one-time |
| Bytes | $9.99 | one-time |
| Convo Transcription: 14 Hours | $12.99 | one-time |
| Deep Recall: 6 Hours | $17.99 | one-time |
| Kilo | $24.99 | one-time |
| Deep Recall: 12 Hours | $34.99 | one-time |
| Giga | $149.99 | one-time |


## Frequently asked questions

### Is Cat Tracker 2 free?

Cat Tracker 2 is free to download, with no in-app purchases.

### Is MemoryMap Archive free?

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

### Do Cat Tracker 2 or MemoryMap Archive have ads?

Neither Cat Tracker 2 nor MemoryMap Archive shows ads.

### Which is updated more often, Cat Tracker 2 or MemoryMap Archive?

Cat Tracker 2 ships an update every 27 months, and MemoryMap Archive every 2 months. Most recently, Cat Tracker 2 was updated on October 20, 2026 and MemoryMap Archive on October 18, 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.*