# DIGVA vs Erchang Fish

The clearest difference is update cadence: DIGVA at every 3 days against Erchang Fish's every 7 months. Erchang Fish's advantage is iOS requirement (9.3 vs 12.0). 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.

DIGVA ships an update every 3 days, Erchang Fish every 7 months. The most recent releases landed on October 4, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | DIGVA | Erchang Fish |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 7 months |
| Monetization | — | Free |
| Size | 16 MB | 68 MB |
| Requires iOS | 12.0 | **9.3** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Comlab Computer GmbH](https://appshunter.io/developer/694690874) | [定敢 刘](https://appshunter.io/developer/1194376703) |

## What reviewers say

### DIGVA

[App page](https://appshunter.io/ios/app/digva/id1434304036)

**Features:** macOS Compatibility

**In-app purchases:** none


### Erchang Fish

[App page](https://appshunter.io/ios/app/erchang-fish/id1605890664)

This intelligent fish detector app offers a dual-band sonar system with a user-friendly interface. It's designed to be a helpful tool for fishing enthusiasts, providing convenient operation for better angling experiences.

**Highlights:** Dual band intelligent fish detection, Friendly interface, Convenient operation, Fishing helper tool

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DIGVA free?

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

### Is Erchang Fish free?

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

### Do DIGVA or Erchang Fish have ads?

Neither DIGVA nor Erchang Fish shows ads.

### Which is updated more often, DIGVA or Erchang Fish?

DIGVA ships an update every 3 days, and Erchang Fish every 7 months. Most recently, DIGVA was updated on October 4, 2026 and Erchang Fish on October 14, 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.*