# Dark Mode Reader vs DuoSub

The clearest difference is ads: Dark Mode Reader at none against DuoSub's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Dark Mode Reader sells 1 one-off in-app purchase and DuoSub sells 3 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

Dark Mode Reader ships an update every 2 months, DuoSub monthly. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Dark Mode Reader | DuoSub |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Monthly** |
| Size | 5 MB | 12 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Dang Nam Nguyen](https://appshunter.io/developer/1779685594) | [Vui Nguyen](https://appshunter.io/developer/1697789456) |

## What reviewers say

### Dark Mode Reader

[App page](https://appshunter.io/ios/app/dark-mode-reader/id6783726550)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime | $3.99 | one-time |


### DuoSub

[App page](https://appshunter.io/ios/app/duosub-subtitle-translator/id6799621505)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DuoSub Pro - 1 Month | $6.99 | per month |
| DuoSub Pro - 3 Months | $14.99 | per 3 months |
| DuoSub Pro - 1 Year | $49.99 | per year |


## Frequently asked questions

### Is Dark Mode Reader free?

Dark Mode Reader is free to download, with in-app purchases available.

### Is DuoSub free?

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

### Do Dark Mode Reader or DuoSub have ads?

DuoSub shows ads; Dark Mode Reader does not.

### Which is updated more often, Dark Mode Reader or DuoSub?

Dark Mode Reader ships an update every 2 months, and DuoSub monthly. Most recently, Dark Mode Reader was updated on October 31, 2026 and DuoSub on November 6, 2026.

---

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