# Tummyfish vs Brain Work

The clearest difference is update cadence: Brain Work at every 2 days against Tummyfish's every 3 months. Brain Work also leads on iOS requirement (12.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Tummyfish ships an update every 3 months, Brain Work every 2 days. The most recent releases landed on August 16, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Tummyfish | Brain Work |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (8 ratings)](https://appshunter.io/ios/app/tummyfish/id1139166275/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 274 MB | 46 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nestlé](https://appshunter.io/developer/451455699) | [aylin komutgan](https://appshunter.io/developer/1598793910) |

## What reviewers say

### Tummyfish

[App page](https://appshunter.io/ios/app/tummyfish/id1139166275)

This virtual friend encourages children to drink more water through interactive games and rewards. Parents can set reminders and track progress, while kids engage with their virtual companion in a lively environment.

**Highlights:** Virtual friend to encourage water intake, Interactive games and rewards, Parental notifications for hydration, Track water consumption statistics, Learn benefits of drinking water, Unlock toys and mini-games

**Features:** macOS Compatibility

**In-app purchases:** none


### Brain Work

[App page](https://appshunter.io/ios/app/brain-work/id1642842684)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Tummyfish free?

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

### Is Brain Work free?

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

### Do Tummyfish or Brain Work have ads?

Neither Tummyfish nor Brain Work shows ads.

### Which is updated more often, Tummyfish or Brain Work?

Tummyfish ships an update every 3 months, and Brain Work every 2 days. Most recently, Tummyfish was updated on August 16, 2026 and Brain Work on September 17, 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.*