# Caster App vs HaiDi Pro

The clearest difference is review sentiment: Caster App at 100% against HaiDi Pro's 0%. Caster App also leads on rating (4.8 vs 1.0) and update cadence (every 3 weeks vs every 2 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Caster App holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: Caster App has 16 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Caster App's written reviews are positive against 0% of HaiDi Pro's.

Caster App ships an update every 3 weeks, HaiDi Pro every 2 months. The most recent releases landed on October 2, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Caster App | HaiDi Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (16 ratings)](https://appshunter.io/ios/app/caster-app/id1438758654/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/haidi-pro/id6443414754/reviews) |
| Number of ratings | **16** | 1 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 34 MB | 122 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Caster LLC](https://appshunter.io/developer/1438758653) | [Haidi Energy Tehcnogy Co., Ltd](https://appshunter.io/developer/1645467042) |

## What reviewers say

### Caster App

[App page](https://appshunter.io/ios/app/caster-app/id1438758654)

Streamline social event planning and eliminate tedious group texts. Easily organize gatherings, from casual meetups to large festivals, and keep all event details in one accessible place. Connect with friends and family through private groups or discover public communities.

**Highlights:** Streamlined event planning, Eliminates group texts/emails, Syncs with phone contacts, Centralized event logistics, Event information stream, Private and public groups

**Features:** macOS Compatibility

**In-app purchases:** none


### HaiDi Pro

[App page](https://appshunter.io/ios/app/haidi-pro/id6443414754)

Monitor and manage your lithium battery packs via Bluetooth. View detailed status information, set protection parameters, and receive real-time alerts for abnormalities. Access historical alarm records for troubleshooting.

**Highlights:** Connect via Bluetooth, Read battery pack status, View voltage, current, temperature, Set protection parameters, Receive abnormality alarms, Historical alarm records

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

**In-app purchases:** none


## Frequently asked questions

### Is Caster App free?

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

### Is HaiDi Pro free?

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

### Which has better reviews, Caster App or HaiDi Pro?

Caster App is rated higher. Caster App averages 4.8 out of 5 from 16 ratings, while HaiDi Pro averages 1.0 from 1 ratings.

### Do Caster App or HaiDi Pro have ads?

Neither Caster App nor HaiDi Pro shows ads.

### Which is updated more often, Caster App or HaiDi Pro?

Caster App ships an update every 3 weeks, and HaiDi Pro every 2 months. Most recently, Caster App was updated on October 2, 2026 and HaiDi Pro on October 3, 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.*