# CarStomize vs Betta Expert

The clearest difference is update cadence: CarStomize at daily against Betta Expert's every 3 months. Betta Expert's advantage is iOS requirement (15.1 vs 26.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. CarStomize sells 4 one-off in-app purchases and Betta Expert sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

CarStomize ships an update daily, Betta Expert every 3 months. The most recent releases landed on September 21, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | CarStomize | Betta Expert |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.3 (7 ratings)](https://appshunter.io/ios/app/betta-expert/id6762184722/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 3 months |
| Monetization | — | Subscription |
| Size | 35 MB | 55 MB |
| Requires iOS | 26.1 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Ioannis Kyritsis](https://appshunter.io/developer/1854004015) | [Yihong Lim](https://appshunter.io/developer/1833436968) |

## What reviewers say

### CarStomize

[App page](https://appshunter.io/ios/app/carstomize/id6755451417)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 Credits | $2.99 | one-time |
| 300 Credits | $6.99 | one-time |
| 600 Credits | $12.99 | one-time |
| 1500 Credits | $24.99 | one-time |


### Betta Expert

[App page](https://appshunter.io/ios/app/betta-expert/id6762184722)

This app provides guidance for betta fish health and care. It offers photo diagnosis, emergency assistance, compatibility tracking, and a chat feature for expert advice on water quality, feeding, and behavior. Build consistent habits with care checklists and routines for better fish husbandry.

**Highlights:** Betta Health Diagnosis via photo, SOS Emergency guided help, Compatibility Tracker for tank mates, AI chat for betta care questions, Care checklists and routines, Water quality and feeding advice

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Betta Expert Weekly Pro | $4.99 | per 7 days |
| Betta Expert Annual Pro | $29.99 | per year |


## Frequently asked questions

### Is CarStomize free?

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

### Is Betta Expert free?

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

### Do CarStomize or Betta Expert have ads?

Neither CarStomize nor Betta Expert shows ads.

### Which is updated more often, CarStomize or Betta Expert?

CarStomize ships an update daily, and Betta Expert every 3 months. Most recently, CarStomize was updated on September 21, 2026 and Betta Expert on October 4, 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.*