# Echo vs Private AI

The clearest difference is update cadence: Private AI at every 2 days against Echo's every 5 days. Private AI also leads on price ($4.99 vs $6.99). Echo's advantage is iOS requirement (17.6 vs 26.0). On ads, in-app purchases, chart position and device support there is nothing between them.

Echo costs $6.99 and Private AI $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Echo ships an update every 5 days, Private AI every 2 days. The most recent releases landed on July 27, 2026 and July 30, 2026 respectively.

## The numbers

| Metric | Echo | Private AI |
| --- | --- | --- |
| Price | $6.99 | **$4.99** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 2 days** |
| Best chart rank | #198 | **#195** |
| Size | 16 MB | 6 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Umi Indigo LLC](https://appshunter.io/developer/1679236790) | [GTechnologies LLC](https://appshunter.io/developer/1813624050) |

## What reviewers say

### Echo

[App page](https://appshunter.io/ios/app/echo-ai/id6741455864)

**Currently charting:** #198 Top Paid · Productivity (US App Store)

**Features:** macOS Compatibility

**In-app purchases:** none


### Private AI

[App page](https://appshunter.io/ios/app/private-ai-document-chat/id6757301317)

**Currently charting:** #195 Top Paid · Productivity (US App Store)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Echo free?

Echo costs $6.99, with no in-app purchases.

### Is Private AI free?

Private AI costs $4.99, with no in-app purchases.

### Do Echo or Private AI have ads?

Neither Echo nor Private AI shows ads.

### Which is updated more often, Echo or Private AI?

Echo ships an update every 5 days, and Private AI every 2 days. Most recently, Echo was updated on July 27, 2026 and Private AI on July 30, 2026.

### Which is more popular, Echo or Private AI?

Echo currently peaks at #198 in the App Store charts, and Private AI at #195. Chart position reflects recent download velocity rather than total install base.

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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.*