# mySpec vs Estratum

The clearest difference is in-app purchases: mySpec at none against Estratum's 1. mySpec also leads on device support (3 vs 1) and iOS requirement (15.0 vs 18.0). Estratum's advantage is update cadence (daily vs every 5 weeks). On price and ads there is nothing between them.

Both are free to download. Estratum sells 1 one-off in-app purchase. mySpec asks for nothing beyond the download.

mySpec ships an update every 5 weeks, Estratum daily. The most recent releases landed on October 9, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | mySpec | Estratum |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Daily** |
| Size | 195 MB | 28 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SPEC S.A.](https://appshunter.io/developer/497967005) | [LyXeoN](https://appshunter.io/developer/566849105) |

## What reviewers say

### mySpec

[App page](https://appshunter.io/ios/app/myspec/id1631309112)

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

**In-app purchases:** none


### Estratum

[App page](https://appshunter.io/ios/app/estratum-second-brain/id6795179990)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Estratum Pro — Lifetime | $24.99 | one-time |


## Frequently asked questions

### Is mySpec free?

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

### Is Estratum free?

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

### Do mySpec or Estratum have ads?

Neither mySpec nor Estratum shows ads.

### Which is updated more often, mySpec or Estratum?

mySpec ships an update every 5 weeks, and Estratum daily. Most recently, mySpec was updated on October 9, 2026 and Estratum on October 1, 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.*