ComicPDFReader vs SpatialEMU
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ComicPDFReader
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If you read comics, scanned books, or PDFs, you’ve probably fought awkward spreads, the wrong page direction, or lost your place. ComicPDFReader is built around double-page reading. Switch anytime between left-to-right and right-to-left (manga). Single-page mode is there when you need it. Progress and recent files resume automatically. The UI stays light on iPhone, iPad, and Mac. Who it’s for • Comics, manga, and scanned spreads that need a true two-page view • Readers who switch between LTR and RTL • Clean PDF / ebook reading without clutter Highlights • Double-page: choose LTR or RTL (manga) • Single-page browsing • Auto resume and recent files • Simple UI across iPhone, iPad, and Mac Your spreads, your direction—keep reading.
SpatialEMU
This app allows you to play your own retro game library on iPhone and iPad. Organize your collection, customize game presentation, and use touch controls or physical controllers. It supports a wide range of classic systems and arcade hardware.
- Play user-provided retro games
- Supports NES, SNES, Genesis, PlayStation, PSP, and more
- Virtual and physical controller support
- Customizable controls and input mapping
- Optional self-hosted library for game management
- Local network cabinet link for SEGA Model 3
- Save state and battery save synchronization
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SpatialEMU brings your own retro game library to iPhone and iPad. Organize a personal local collection, choose how each game is presented, and play with touch controls or supported physical game controllers. SUPPORTED SYSTEMS Play user-provided games for NES, SNES, Game Boy, Game Boy Color, Game Boy Advance, Nintendo DS, Mega Drive / Genesis, SEGA 32X, Master System, Game Gear, SG-1000, PlayStation, PSP, DOS, Neo Geo, CPS arcade systems, SEGA Model 2, SEGA Model 3, and supported MAME arcade hardware. Compatibility varies by title, file format, and required system files. LOAD LOCAL FILES OR USE YOUR OWN SERVER No server is required: open local games directly with the system document picker. FolioSpace Library is an optional, self-hosted personal library and is not part of the SpatialEMU client. It can run on a NAS or on a Docker-capable Mac, PC, or Linux host. Connect to your own server to browse, search, filter, and selectively download your catalog, save multiple server profiles, and synchronize supported battery saves and play records. PLAY YOUR WAY Use the app's virtual controls or supported Xbox, PlayStation, Nintendo, and other game controllers. Universal controller mapping supports global, per-system, and per-game profiles, button reassignment, axis inversion, dead zones, and sensitivity. SpatialEMU also provides Nintendo DS touch input, DOS keyboard and mouse controls, and specialized controls for supported arcade and mahjong titles. LOCAL-NETWORK CABINET LINK Supported SEGA Model 3 titles can create native cabinet-link sessions across multiple devices. Every device runs the same user-provided game locally while the LAN carries only cabinet-link data. Some larger room layouts remain clearly labeled experimental. LOCAL PROGRESS Keep local battery saves and save states for supported systems. Store separate progress for each game and synchronize supported save records through your own FolioSpace Library. IMPORTANT SpatialEMU does not include games, ROMs, BIOS files, firmware, encryption keys, copyrighted game content, or downloads for such content. You must provide files you have the right to use. Compatibility does not imply affiliation with the relevant hardware or game publishers. FolioSpace connection guide: https://spatialemu.com/guides/foliospace-connection/ Open-source notices and corresponding source: https://github.com/funland/SpatialEMU-Source Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ FREE FEATURES AND OPTIONAL PURCHASES Supported NES, SNES, Mega Drive / Genesis, GB, GBC, GBA, and all supported FBNeo systems (including CPS1, CPS2, CPS3 and Neo Geo) do not require Prime. Prime unlocks additional supported systems through a monthly subscription, annual subscription, or one-time lifetime purchase. Compatibility varies by game and platform. Subscriptions renew automatically unless canceled. Eligible earlier purchasers retain permanent Prime access after purchase-history verification. Purchasing lifetime Prime does not automatically cancel an existing subscription. Prices and purchase options appear in the app.
Screenshots
Verdict
The clearest difference is in-app purchases: ComicPDFReader at none against SpatialEMU's 6. SpatialEMU's advantage is update cadence (every 11 days vs every 3 months) and device support (6 vs 3). On price, ads and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. SpatialEMU sells 6 in-app purchases, starting at $1.99 per month. ComicPDFReader asks for nothing beyond the download.
ComicPDFReader ships an update every 3 months, SpatialEMU every 11 days. Both last shipped on November 12, 2026.
| Parameter | ComicPDFReader | SpatialEMU |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 3 months | Every 11 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, Mac | iPhone, iPad, Mac, Apple TV, Apple Watch, Vision Pro — better |
| Requires iOS | 17.5 — better | 18.0 |
| Further details — not scored | ||
| Size | 2 MB | 353 MB |
| Age rating | 4+ | 4+ |
| Developer | HSIA-TING YEH | 晓东 傅 |
In-app purchases
ComicPDFReader
No in-app purchases
SpatialEMU
- Prime Monthly$1.991 Month
- Prime Annual$14.991 Year
- Retro Cabinet Pack 02$4.99
- Retro Cabinet Pack 01$4.99
- Cabinet Pack 03: Road & Sky$4.99
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- Prime Lifetime$29.99









