# PrepFlex vs Reflow

The clearest difference is in-app purchases: PrepFlex at none against Reflow's 2. PrepFlex also leads on iOS requirement (15.6 vs 17.0). Reflow's advantage is update cadence (every 5 days vs every 10 months). On price, ads and device support there is nothing between them.

Both are free to download. Reflow sells 2 in-app purchases, starting at $9.99 per month. PrepFlex asks for nothing beyond the download.

PrepFlex ships an update every 10 months, Reflow every 5 days. The most recent releases landed on October 2, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | PrepFlex | Reflow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/prepflex-study-optimizer/id6754576477/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 25 MB | 21 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Rajat Aggarwal](https://appshunter.io/developer/1849009713) | [ilkin Reha OZTURK](https://appshunter.io/developer/1584691679) |

## 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


### Reflow

[App page](https://appshunter.io/ios/app/reflow-adhd-daily-planner/id6790843506)

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reflow Pro Monthly | $9.99 | per month |
| Reflow Pro Yearly | $49.99 | per year |


## Frequently asked questions

### Is PrepFlex free?

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

### Is Reflow free?

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

### Do PrepFlex or Reflow have ads?

Neither PrepFlex nor Reflow shows ads.

### Which is updated more often, PrepFlex or Reflow?

PrepFlex ships an update every 10 months, and Reflow every 5 days. Most recently, PrepFlex was updated on October 2, 2026 and Reflow on October 10, 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.*