# PrepFlex vs To Do List Widget by Zeli

The clearest difference is in-app purchases: PrepFlex at none against To Do List Widget by Zeli's 1. PrepFlex also leads on iOS requirement (15.6 vs 18.6). To Do List Widget by Zeli's advantage is update cadence (every 10 days vs every 10 months). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. To Do List Widget by Zeli sells 1 one-off in-app purchase. PrepFlex asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for PrepFlex against 5.0 for To Do List Widget by Zeli. Both are backed by a comparable volume of ratings — 5 and 10 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

PrepFlex ships an update every 10 months, To Do List Widget by Zeli every 10 days. The most recent releases landed on September 14, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | PrepFlex | To Do List Widget by Zeli |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/prepflex-study-optimizer/id6754576477/reviews) | [5.0 (10 ratings)](https://appshunter.io/ios/app/to-do-list-widget-by-zeli/id6761210370/reviews) |
| Number of ratings | 5 | **10** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 10 days** |
| Monetization | Free | Free |
| Size | 25 MB | 11 MB |
| Requires iOS | **15.6** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Rajat Aggarwal](https://appshunter.io/developer/1849009713) | [Studio Zeli](https://appshunter.io/developer/6798414494) |

## What reviewers say

### PrepFlex

[App page](https://appshunter.io/ios/app/prepflex-study-optimizer/id6754576477)

This app creates personalized study plans from your available time and topics. It helps students organize last-minute study sessions into effective, time-balanced schedules tailored to their needs. The app focuses on efficiency with no sign-ins or distractions.

**Highlights:** Create personalized study plans, Tailored to available time, Add and weight study topics, Set confidence levels for topics, Local data storage for privacy, Distraction-free study environment

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

**In-app purchases:** none


### To Do List Widget by Zeli

[App page](https://appshunter.io/ios/app/to-do-list-widget-by-zeli/id6761210370)

Manage your tasks directly from your iPhone's home screen without opening the app. This widget-based tool allows you to switch lists, scroll through tasks, and reset your day with zero friction. Ideal for routines and repeatable workflows.

**Highlights:** Interactive home screen widget, Manage tasks without opening app, Switch between multiple lists, Scroll tasks directly on widget, Reset entire list with one tap, Designed for routines and SOPs

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Widget Pro | $9.99 | one-time |


## Frequently asked questions

### Is PrepFlex free?

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

### Is To Do List Widget by Zeli free?

To Do List Widget by Zeli is free to download, with in-app purchases available.

### Which has better reviews, PrepFlex or To Do List Widget by Zeli?

PrepFlex and To Do List Widget by Zeli are both rated 5.0 out of 5 on the App Store, from 5 and 10 ratings respectively.

### Do PrepFlex or To Do List Widget by Zeli have ads?

Neither PrepFlex nor To Do List Widget by Zeli shows ads.

### Which is updated more often, PrepFlex or To Do List Widget by Zeli?

PrepFlex ships an update every 10 months, and To Do List Widget by Zeli every 10 days. Most recently, PrepFlex was updated on September 14, 2026 and To Do List Widget by Zeli on September 20, 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.*