Developer vs ArtPDF
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Developer
This app assists with the manual film developing process by providing a comprehensive timer and recipe management system. It offers multi-stage timers with agitation reminders and syncs to smartwatches for independent use. Built-in guides and multi-language support enhance the user experience.
- Film and developer data browsing
- Multi-stage timers with step reminders
- Recipe saving and syncing
- Apple Watch integration
- Built-in film developing guides
- Multi-language support
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Developer is a timer for developing film by hand. Find development data, save your favourite recipes and follow each stage of your process. - Browse film, developer, dilution, temperature and development times. - Use multi-stage timers with agitation and step reminders. - Enjoy layouts that adapt as you fold and unfold iPhone Duo. - Sync recipes to Apple Watch and time independently on your wrist. - Install and use on Apple Vision Pro. - Read built-in film developing guides with illustrations. - Choose a simple black or white appearance, with support for five languages.
ArtPDF
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ArtPDF 精选呈现艺术家作品集，是一个专为藏家设计的艺术家作品搜索平台。通过ArtPDF，用户可以轻松浏览和发现来自世界各地的优秀艺术家及其作品。平台不仅提供了高质量的图像和详细的艺术家信息，还为用户提供了便捷的收藏和分享功能。
Screenshots
Verdict
The clearest difference is in-app purchases: ArtPDF at none against Developer's 1. ArtPDF also leads on update cadence (every 2 weeks vs every 5 weeks) and iOS requirement (12.0 vs 17.0). On price, ads 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. Developer sells 1 one-off in-app purchase. ArtPDF asks for nothing beyond the download.
Developer ships an update every 5 weeks, ArtPDF every 2 weeks. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.
| Parameter | Developer | ArtPDF |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 17.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 19 MB | 39 MB |
| Age rating | 4+ | 12+ |
| Developer | 雯曦 梁 | Shanghai Xijing Art Co., Ltd. |
In-app purchases
Developer
- 专业版$5.99
ArtPDF
No in-app purchases
