RiDATA vs ALD PDF
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RiDATA
Expand your iOS device's storage with an external RiDATA device. Easily transfer and manage photos, videos, audio, and documents across different platforms and devices.
- External storage device compatibility
- File exchange across devices/platforms
- Picture browser
- Video player
- Audio player
- Document browser
- Camera function
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The Application requires using with RiDATA external storage device, and provides iOS device for capacity expansion. Exchange files with different devices and platforms with ease. Features: - Provide picture browser, including iOS photos. - Provide video player, including iOS photos. - Provide audio player, including iTune music. (Doesn't support music downloaded from iTune) - Provide document browser. - Provide camera function. Support File Format: - Picture: BMP, GIF, JPG, PNG, TIF - Video: M4V, MOV, MP4 - Audio: M4A, MP3, WAV - Document: DOC, DOCX, PPT, PPTX, XLS, XLSX, KEYNOTES, NUMBERS, PAGES, HTML, PDF, RTF, RTFD, TXT
ALD PDF
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16 supported languages. Lightweight and practical PDF viewer. Features an advanced word or key text search system. Allows enlarging the document and viewing the content in portrait or landscape mode. Quick access to content through the index or bookmark panel. Reception and sending of PDF files through iOS secure sharing. Built on Apple's iOS native full-featured tool, called PDF Kit, which allows greater security and functionality in PDF file management.
Screenshots
Verdict
The clearest difference is ads: RiDATA at none against ALD PDF's shown. RiDATA also leads on iOS requirement (8.0 vs 11.0). ALD PDF's advantage is update cadence (fortnightly vs every 2 months). On price, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.
RiDATA ships an update every 2 months, ALD PDF fortnightly. The most recent releases landed on October 9, 2026 and October 1, 2026 respectively.
| Parameter | RiDATA | ALD PDF |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (3 ratings) — better | — |
| Positive reviews | 16.7% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 11.0 |
| Further details — not scored | ||
| Size | 45 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Siliconmotion | Aido Domingues |
In-app purchases
RiDATA
No in-app purchases
ALD PDF
No in-app purchases
