# ComicPDFReader vs Say In Bulbs

The clearest difference is in-app purchases: ComicPDFReader at none against Say In Bulbs's 1. Say In Bulbs's advantage is update cadence (every 5 days vs every 3 months) and device support (5 vs 3). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Say In Bulbs sells 1 one-off in-app purchase. ComicPDFReader asks for nothing beyond the download.

ComicPDFReader ships an update every 3 months, Say In Bulbs every 5 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ComicPDFReader | Say In Bulbs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/say-in-bulbs-led-message-sign/id6808346842/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | — | Free with in-app purchases |
| Size | 2 MB | 6 MB |
| Requires iOS | 17.5 | **17.0** |
| Devices | iPhone, iPad, Mac | **iPhone, iPad, Mac, Apple TV, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [HSIA-TING YEH](https://appshunter.io/developer/1855889149) | [Kamil Popczyk](https://appshunter.io/developer/6780252435) |

## What reviewers say

### ComicPDFReader

[App page](https://appshunter.io/ios/app/comicpdfreader/id6755726421)

**Features:** Vision Pro support

**In-app purchases:** none


### Say In Bulbs

[App page](https://appshunter.io/ios/app/say-in-bulbs-led-message-sign/id6808346842)

Transform your phone into a bright, scrolling LED message sign. Type or draw custom messages and symbols for easy visibility in crowded places. Works offline and offers advanced customization with a one-time purchase.

**Highlights:** Scrolling dot-matrix LED sign, Custom drawing tool, Ready-made drawings library, Full-screen display, Offline functionality, Apple Watch app integration, Customizable LED colors and backgrounds (Pro)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SIB Pro | $3.99 | one-time |


## Frequently asked questions

### Is ComicPDFReader free?

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

### Is Say In Bulbs free?

Say In Bulbs is free to download, with in-app purchases available.

### Do ComicPDFReader or Say In Bulbs have ads?

Neither ComicPDFReader nor Say In Bulbs shows ads.

### Which is updated more often, ComicPDFReader or Say In Bulbs?

ComicPDFReader ships an update every 3 months, and Say In Bulbs every 5 days. Most recently, ComicPDFReader was updated on October 30, 2026 and Say In Bulbs on October 31, 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.*