# ECHO Pro vs Notes

The clearest difference is ads: ECHO Pro at none against Notes's shown. Notes's advantage is update cadence (weekly vs every 2 weeks) and device support (3 vs 1). On price, review sentiment, 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.

ECHO Pro ships an update every 2 weeks, Notes weekly. The most recent releases landed on June 1, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | ECHO Pro | Notes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (9 ratings)](https://appshunter.io/ios/app/notes-simple-notepad/id6760331456/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Free | Free |
| Size | 103 MB | 31 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Echo Laboratories](https://appshunter.io/developer/935502816) | [Stijn Aa](https://appshunter.io/developer/1782102905) |

## 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


### Notes

[App page](https://appshunter.io/ios/app/notes-simple-notepad/id6760331456)

Capture thoughts, reminders, and ideas in a secure, private space. Notes save automatically as you type, with fast search and optional biometric locking for your peace of mind. Organize with color-coding and choose from classic or modern themes.

**Highlights:** Automatic saving as you type, Biometric note locking (Face ID/fingerprint), Fast search across all notes, Color-coded organization, Lined paper mode, Modern and classic themes

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

**In-app purchases:** none


## Frequently asked questions

### Is ECHO Pro free?

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

### Is Notes free?

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

### Do ECHO Pro or Notes have ads?

Notes shows ads; ECHO Pro does not.

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

ECHO Pro ships an update every 2 weeks, and Notes weekly. Most recently, ECHO Pro was updated on June 1, 2026 and Notes on September 15, 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.*