# WhatLater vs Sema

The clearest difference is iOS requirement: WhatLater at 15.1 against Sema's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. WhatLater sells 2 in-app purchases, starting at $3.99 per month and Sema sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

WhatLater ships an update weekly, Sema every 10 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | WhatLater | Sema |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 10 days |
| Size | 41 MB | 78 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Deal Technology O.U.](https://appshunter.io/developer/1447773525) | [Vilde Vevatne](https://appshunter.io/developer/1807905751) |

## What reviewers say

### WhatLater

[App page](https://appshunter.io/ios/app/whatlater/id6802786885)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium — Monthly | $3.99 | per month |
| Premium — Yearly | $29.99 | per year |


### Sema

[App page](https://appshunter.io/ios/app/sema-private-ai-memory/id6807856356)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sema Pro | $4.99 | per month |
| Sema Pro | $24.99 | per year |


## Frequently asked questions

### Is WhatLater free?

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

### Is Sema free?

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

### Do WhatLater or Sema have ads?

Neither WhatLater nor Sema shows ads.

### Which is updated more often, WhatLater or Sema?

WhatLater ships an update weekly, and Sema every 10 days. Most recently, WhatLater was updated on October 24, 2026 and Sema 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.*