# TwinViewer vs FANDAO

The clearest difference is update cadence: FANDAO at every 9 days against TwinViewer's every 5 weeks. FANDAO also leads on iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. TwinViewer sells 1 one-off in-app purchase and FANDAO sells 10 in-app purchases, starting at $0.49 per month. Whichever you choose, the download price is not the number that matters.

TwinViewer ships an update every 5 weeks, FANDAO every 9 days. The most recent releases landed on November 1, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | TwinViewer | FANDAO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (24 ratings)](https://appshunter.io/ios/app/twinviewer/id531595249/reviews)** | — |
| Number of ratings | **24** | — |
| Positive reviews | 63.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 9 days** |
| Monetization | Free with in-app purchases | — |
| Size | 1 MB | 84 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Masako Sakanashi](https://appshunter.io/developer/410497749) | [SNAFTY K.K.](https://appshunter.io/developer/1644857360) |

## What reviewers say

### TwinViewer

[App page](https://appshunter.io/ios/app/twinviewer/id531595249)

View and compare two photo albums side-by-side. This app allows you to pick the best shots, delete unwanted ones, create combined images, and access detailed EXIF data. It offers intuitive gestures for navigation and zooming.

**Highlights:** Dual-screen photo viewing, Side-by-side photo comparison, Create combined images, View EXIF data, Zoom and swipe navigation, Sync/Async viewer modes

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | Free | one-time |


### FANDAO

[App page](https://appshunter.io/ios/app/fandao/id6443391026)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| テストプラン | $0.49 | per month |
| テストサブスク Subscription Group | $0.49 | per month |
| テストプラン1 Subscription Group | $0.49 | per month |
| prod_group_original_plan_3 | $0.49 | per month |
| KOL AI Subscription Monthly | $0.49 | per month |
| KOL AI Monthly Subscription | $0.49 | per month |
| KOl AI Monthly Subscription | $0.49 | per month |
| Package Points 13 | $29.99 | one-time |
| Package Points 16 | $119.99 | one-time |
| Package Points 17 | $179.99 | one-time |


## Frequently asked questions

### Is TwinViewer free?

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

### Is FANDAO free?

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

### Do TwinViewer or FANDAO have ads?

Neither TwinViewer nor FANDAO shows ads.

### Which is updated more often, TwinViewer or FANDAO?

TwinViewer ships an update every 5 weeks, and FANDAO every 9 days. Most recently, TwinViewer was updated on November 1, 2026 and FANDAO on October 27, 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.*