# Estratum vs Offbit

The clearest difference is update cadence: Offbit at every 2 days against Estratum's every 2 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Estratum sells 1 one-off in-app purchase and Offbit sells 7 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Estratum ships an update every 2 weeks, Offbit every 2 days. The most recent releases landed on October 17, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Estratum | Offbit |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Size | 28 MB | 28 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [LyXeoN](https://appshunter.io/developer/566849105) | [MIQUEL COS MARTI](https://appshunter.io/developer/6800112393) |

## What reviewers say

### 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 |


### Offbit

[App page](https://appshunter.io/ios/app/offbit-screen-time/id6800112391)

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Offbit Monthly | $0.99 | per month |
| Offbit Annual | $1.99 | per year |
| Alien Avatar | $1.99 | one-time |
| Chimp Avatar | $1.99 | one-time |
| Moai Avatar | $1.99 | one-time |
| Surfer Avatar | $3.99 | one-time |
| Offbit Premium Lifetime | $8.99 | one-time |


## Frequently asked questions

### Is Estratum free?

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

### Is Offbit free?

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

### Do Estratum or Offbit have ads?

Neither Estratum nor Offbit shows ads.

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

Estratum ships an update every 2 weeks, and Offbit every 2 days. Most recently, Estratum was updated on October 17, 2026 and Offbit on October 13, 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.*