# ECHO Pro vs ISM

The clearest difference is update cadence: ECHO Pro at every 2 weeks against ISM's every 7 months. ISM's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 15.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

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

ECHO Pro ships an update every 2 weeks, ISM every 7 months. The most recent releases landed on June 1, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | ECHO Pro | ISM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ism-wf200/id6698873286/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 7 months |
| Monetization | Free | Free |
| Size | 103 MB | 2 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Echo Laboratories](https://appshunter.io/developer/935502816) | [Insize Co., Ltd.](https://appshunter.io/developer/1489274019) |

## What reviewers say

### ECHO Pro

[App page](https://appshunter.io/ios/app/echo-pro/id1052945965)

This app transforms your compatible iPad into a powerful microscope control and imaging device. Capture, annotate, and share high-quality brightfield and fluorescence images with intuitive on-screen controls and advanced features like Anti-Shake.

**Highlights:** Brightfield imaging with adjustable contrast, Epi-fluorescence imaging (Revolve microscope), Anti-Shake feature for blur-free images, Integrated photo browser and cloud sharing, Photo annotation for cell counting and measurements, Automatic saving of image settings

**In-app purchases:** none


### ISM

[App page](https://appshunter.io/ios/app/ism-wf200/id6698873286)

Explore the microscopic world with a WiFi digital microscope. Capture images, record videos, and perform measurements. Ideal for educational, research, and hobbyist use.

**Highlights:** Microscopic observation, Image capture, Video recording, Measurement tools, WiFi microscope control

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ECHO Pro free?

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

### Is ISM free?

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

### Do ECHO Pro or ISM have ads?

Neither ECHO Pro nor ISM shows ads.

### Which is updated more often, ECHO Pro or ISM?

ECHO Pro ships an update every 2 weeks, and ISM every 7 months. Most recently, ECHO Pro was updated on June 1, 2026 and ISM on September 19, 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.*