# HalfBrain vs PiggyNotes

The clearest difference is update cadence: HalfBrain at every 4 days against PiggyNotes's every 7 months. PiggyNotes's advantage is iOS requirement (15.0 vs 17.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. HalfBrain sells 1 in-app purchase, starting at $2.99 per month and PiggyNotes sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for HalfBrain against 5.0 for PiggyNotes. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

HalfBrain ships an update every 4 days, PiggyNotes every 7 months. The most recent releases landed on October 11, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | HalfBrain | PiggyNotes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/halfbrain-ai-contact-manager/id6472225361/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/piggynotes/id6747115348/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 7 months |
| Monetization | Freemium | Free with in-app purchases |
| Size | 9 MB | 51 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Resonant Ventures, LLC](https://appshunter.io/developer/972830286) | [CHRISTOPH BOTTCHER](https://appshunter.io/developer/1789125956) |

## What reviewers say

### HalfBrain

[App page](https://appshunter.io/ios/app/halfbrain-ai-contact-manager/id6472225361)

This AI-powered app helps you remember details about your contacts and personalize interactions. It organizes voice notes into detailed profiles and generates conversation starters. Enjoy enhanced memory and stronger connections with a focus on user privacy.

**Highlights:** AI-generated conversation questions, Voice-to-text note taking, Detailed contact profiles, Offline access, iCloud sync, No account setup required

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Subscribe to Unlimited Monthly | $2.99 | per month |


### PiggyNotes

[App page](https://appshunter.io/ios/app/piggynotes/id6747115348)

Manage and document all aspects of your guinea pigs' lives, from feeding and cleaning schedules to health logs and expenses. Create unlimited pet profiles, track their age automatically, and receive reminders for important tasks. Export data for vet visits or printouts.

**Highlights:** Unlimited pet profiles, Feeding and cleaning schedules with reminders, Health log and weight monitoring, Expense tracking with overviews, Customizable categories, Data backup and export (PDF, Excel), Vacation mode for pet sitters

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PiggyNotes Premium | $1.99 | per month |
| PiggyNotes Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is HalfBrain free?

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

### Is PiggyNotes free?

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

### Which has better reviews, HalfBrain or PiggyNotes?

HalfBrain and PiggyNotes are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do HalfBrain or PiggyNotes have ads?

Neither HalfBrain nor PiggyNotes shows ads.

### Which is updated more often, HalfBrain or PiggyNotes?

HalfBrain ships an update every 4 days, and PiggyNotes every 7 months. Most recently, HalfBrain was updated on October 11, 2026 and PiggyNotes 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.*