# EchoSource vs DeviceAID

The clearest difference is price: DeviceAID at Free against EchoSource's $1.99. EchoSource's advantage is ads (none vs shown) and chart position (#50 vs unranked). On update cadence, in-app purchases and device support there is nothing between them.

DeviceAID is free to download; EchoSource costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

EchoSource ships an update every 18 months, DeviceAID every 14 months. The most recent releases landed on October 2, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | EchoSource | DeviceAID |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[2.8 (6 ratings)](https://appshunter.io/ios/app/echosource/id532460804/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 18 months | **Every 14 months** |
| Monetization | Paid | — |
| Best chart rank | **#50** | — |
| Size | 140 MB | 60 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 12+ |
| Developer | [ECGsource LLC](https://appshunter.io/developer/377139096) | [Cardiology Apps LLC](https://appshunter.io/developer/1639925847) |

## What reviewers say

### EchoSource

[App page](https://appshunter.io/ios/app/echosource/id532460804)

**Currently charting:** #50 Top Paid · Medical (US App Store)

This medical reference app offers a comprehensive guide to echocardiography, featuring a searchable index of specialized topics and a database of over 90 images and videos. It's designed for cardiologists and trainees to quickly reference diagnostic criteria and clinical disorders.

**Highlights:** Searchable index of specialized echocardiography topics, Database of over 90 figures, images, and videos, Detailed overview of clinical disorders, Evaluation using echocardiography, Reviews of pertinent medical literature, Reference for guideline-based diagnostic criteria

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

**In-app purchases:** none


### DeviceAID

[App page](https://appshunter.io/ios/app/deviceaid/id6449780080)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is EchoSource free?

EchoSource costs $1.99, with no in-app purchases.

### Is DeviceAID free?

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

### Do EchoSource or DeviceAID have ads?

DeviceAID shows ads; EchoSource does not.

### Which is updated more often, EchoSource or DeviceAID?

EchoSource ships an update every 18 months, and DeviceAID every 14 months. Most recently, EchoSource was updated on October 2, 2026 and DeviceAID on October 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*