# opsi vs PrepChecklist

The clearest difference is in-app purchases: opsi at none against PrepChecklist's 4. opsi also leads on ads (none vs shown). PrepChecklist's advantage is update cadence (weekly vs every 3 months). On price, rating, ratings volume and device support there is nothing between them.

Both are free to download. PrepChecklist sells 4 in-app purchases, starting at $1.99 per month. opsi asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.5 for opsi against 4.4 for PrepChecklist. Both are backed by a comparable volume of ratings — 18 and 7 respectively.

opsi ships an update every 3 months, PrepChecklist weekly. The most recent releases landed on August 28, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | opsi | PrepChecklist |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (18 ratings)](https://appshunter.io/ios/app/opsi/id1190141473/reviews)** | [4.4 (7 ratings)](https://appshunter.io/ios/app/prepchecklist-to-do-list/id6463404844/reviews) |
| Number of ratings | **18** | 7 |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 21 MB | 52 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mise Inc.](https://appshunter.io/developer/1475585154) | [naoki otsu](https://appshunter.io/developer/1082476153) |

## What reviewers say

### opsi

[App page](https://appshunter.io/ios/app/opsi/id1190141473)

This platform connects your restaurant team, from kitchen to accounting, to streamline operations. It helps reduce waste and enables data-driven decision-making for smarter management.

**Highlights:** Team connectivity, Streamlined operations, Waste reduction, Data-driven decisions, Kitchen to accounting integration

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

**In-app purchases:** none


### PrepChecklist

[App page](https://appshunter.io/ios/app/prepchecklist-to-do-list/id6463404844)

Create detailed preparation lists for any occasion, from travel to work. Organize tasks with smart tabs, customize appearance, and set reminders. Secure your lists with biometric authentication and export data easily.

**Highlights:** Smart organization with tabs, Intuitive drag & drop interface, Customizable notifications, Biometric authentication, Background color customization, CSV data export, Dark mode support

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.99 | per month |
| Premium | $9.99 | per year |
| Premium Edition | $4.99 | one-time |
| Premium | $12.99 | one-time |


## Frequently asked questions

### Is opsi free?

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

### Is PrepChecklist free?

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

### Which has better reviews, opsi or PrepChecklist?

opsi is rated higher. opsi averages 4.5 out of 5 from 18 ratings, while PrepChecklist averages 4.4 from 7 ratings.

### Do opsi or PrepChecklist have ads?

PrepChecklist shows ads; opsi does not.

### Which is updated more often, opsi or PrepChecklist?

opsi ships an update every 3 months, and PrepChecklist weekly. Most recently, opsi was updated on August 28, 2026 and PrepChecklist on September 20, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*