# SPC Tools vs Echosy

The clearest difference is ads: SPC Tools at none against Echosy's shown. SPC Tools also leads on update cadence (every 3 days vs weekly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. SPC Tools sells 2 in-app purchases, starting at $2.99 per month and Echosy sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

SPC Tools ships an update every 3 days, Echosy weekly. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | SPC Tools | Echosy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Weekly |
| Size | 13 MB | 29 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Osman Seven](https://appshunter.io/developer/1875631963) | [Pong Ning Wong](https://appshunter.io/developer/1885145115) |

## What reviewers say

### SPC Tools

[App page](https://appshunter.io/ios/app/spc-tools-cpk-calculator/id6759008455)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Annual | $19.99 | per year |


### Echosy

[App page](https://appshunter.io/ios/app/echosy/id6760580353)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is SPC Tools free?

SPC Tools is free to download, with in-app purchases available.

### Is Echosy free?

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

### Do SPC Tools or Echosy have ads?

Echosy shows ads; SPC Tools does not.

### Which is updated more often, SPC Tools or Echosy?

SPC Tools ships an update every 3 days, and Echosy weekly. Most recently, SPC Tools was updated on October 28, 2026 and Echosy on October 24, 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.*