# Optimum vs Since

The clearest difference is in-app purchases: Optimum at none against Since's 1. Optimum also leads on update cadence (every 2 weeks vs every 2 months) and device support (3 vs 1). Since's advantage is iOS requirement (16.4 vs 26.0). On price and ads there is nothing between them.

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

Optimum ships an update every 2 weeks, Since every 2 months. The most recent releases landed on November 9, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Optimum | Since |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Size | 19 MB | 54 MB |
| Requires iOS | 26.0 | **16.4** |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Mohini Sharma](https://appshunter.io/developer/1561856602) | [Joseph Emmanuel Deladem Kudjordji](https://appshunter.io/developer/6779929936) |

## What reviewers say

### Optimum

[App page](https://appshunter.io/ios/app/optimum-planner-and-focus-timer/id6761065515)

**Features:** Family Sharing, Vision Pro support

**In-app purchases:** none


### Since

[App page](https://appshunter.io/ios/app/since-last-time-tracker/id6782056222)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited | $0.99 | one-time |


## Frequently asked questions

### Is Optimum free?

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

### Is Since free?

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

### Do Optimum or Since have ads?

Neither Optimum nor Since shows ads.

### Which is updated more often, Optimum or Since?

Optimum ships an update every 2 weeks, and Since every 2 months. Most recently, Optimum was updated on November 9, 2026 and Since on November 5, 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.*