# Predo vs ReadFlow

The clearest difference is iOS requirement: ReadFlow at 13.0 against Predo's 18.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Predo sells 1 one-off in-app purchase and ReadFlow sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Predo | ReadFlow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Size | 18 MB | 103 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cappsule Teknoloji](https://appshunter.io/developer/1676687521) | [Hasan Karli](https://appshunter.io/developer/1700265388) |

## What reviewers say

### Predo

[App page](https://appshunter.io/ios/app/predo-speed-reading-trainer/id6755594891)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Predo Pro | $4.99 | one-time |


### ReadFlow

[App page](https://appshunter.io/ios/app/readflow-speed-reading/id6770712256)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| premium | $2.99 | per month |
| premium | $29.99 | per year |


## Frequently asked questions

### Is Predo free?

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

### Is ReadFlow free?

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

### Do Predo or ReadFlow have ads?

Neither Predo nor ReadFlow shows ads.

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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.*