# ECHO Survival AI vs ReadyNow Prep

The clearest difference is update cadence: ReadyNow Prep at fortnightly against ECHO Survival AI's every 3 months. ECHO Survival AI's advantage is iOS requirement (17.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. ECHO Survival AI sells 2 one-off in-app purchases and ReadyNow Prep sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ECHO Survival AI ships an update every 3 months, ReadyNow Prep fortnightly. The most recent releases landed on October 9, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ECHO Survival AI | ReadyNow Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/readynow-prep/id6759943485/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Size | 97 MB | 13 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [ehsan azish](https://appshunter.io/developer/1622575303) | [Abram Kai Davis](https://appshunter.io/developer/1827294048) |

## What reviewers say

### ECHO Survival AI

[App page](https://appshunter.io/ios/app/echo-survival-ai/id6756616533)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock offline use forever | $12.99 | one-time |
| Full version | $12.99 | one-time |


### ReadyNow Prep

[App page](https://appshunter.io/ios/app/readynow-prep/id6759943485)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ReadyNow Pro | $4.99 | one-time |


## Frequently asked questions

### Is ECHO Survival AI free?

ECHO Survival AI is free to download, with in-app purchases available.

### Is ReadyNow Prep free?

ReadyNow Prep is free to download, with in-app purchases available.

### Do ECHO Survival AI or ReadyNow Prep have ads?

Neither ECHO Survival AI nor ReadyNow Prep shows ads.

### Which is updated more often, ECHO Survival AI or ReadyNow Prep?

ECHO Survival AI ships an update every 3 months, and ReadyNow Prep fortnightly. Most recently, ECHO Survival AI was updated on October 9, 2026 and ReadyNow Prep on October 24, 2026.

---

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