# Circa vs muttlog

The clearest difference is in-app purchases: Circa at none against muttlog's 2. muttlog's advantage is ads (none vs shown) and update cadence (every 6 days vs every 5 weeks). On price and device support there is nothing between them.

Both are free to download. muttlog sells 2 in-app purchases, starting at $1.99 per month. Circa asks for nothing beyond the download.

Circa ships an update every 5 weeks, muttlog every 6 days. The most recent releases landed on October 12, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Circa | muttlog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/muttlog/id6792225486/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 6 days** |
| Monetization | — | Freemium |
| Size | 7 MB | 48 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Levin David Schwab](https://appshunter.io/developer/1896432297) | [Peter Williams](https://appshunter.io/developer/6780789656) |

## What reviewers say

### Circa

[App page](https://appshunter.io/ios/app/circa-health-intelligence/id6779644107)

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

**In-app purchases:** none


### muttlog

[App page](https://appshunter.io/ios/app/muttlog/id6792225486)

This app helps you log your dog's daily exercise, social interactions, and training progress. It offers visual charts, teaching guidance for core commands, and motivational streaks. Unlock advanced features and multiple dog profiles with a subscription.

**Highlights:** Exercise, Social, and Behavior progress scores, Visual progress chart, Core command tracking, Teaching guidance for commands, Streaks and badges, Multiple dog profiles (Pro), Cloud backup (Pro)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro Subscription | $1.99 | per month |
| Pro | $9.99 | per year |


## Frequently asked questions

### Is Circa free?

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

### Is muttlog free?

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

### Do Circa or muttlog have ads?

Circa shows ads; muttlog does not.

### Which is updated more often, Circa or muttlog?

Circa ships an update every 5 weeks, and muttlog every 6 days. Most recently, Circa was updated on October 12, 2026 and muttlog on October 16, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*