Web Development SDK vs OnDevice
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Web Development SDK
Read full descriptionHide full description
Create a fully functional website and test it in a real web browser, all without leaving the app. Supports the latest JavaScript, CSS, and HTML technologies. This app couldn't be easier to use! Create as many projects with as many files as you want. All your data is automatically stored in the Files app, so you can take your website anywhere you'd like. Contact: https://github.com/lucasditomase/contact Privacy policy: https://github.com/lucasditomase/privacy-policy Terms of service: https://apple.com/legal/internet-services/itunes/dev/stdeula You need a subscription to use this app's features.
OnDevice
Run various AI models like language, vision, and speech directly on your iPhone. Explore and download models, then use them for tasks like chatting, coding, image generation, and OCR. Network features are optional, and no app account is needed for local use.
- Run local AI models
- Language, vision, and speech capabilities
- Model discovery and download
- Image generation
- Built-in OCR
- Optional network features
- No app account required
Read full descriptionHide full description
OnDevice is a local-first AI studio for iPhone. Run compatible language, vision, speech, and image models on your device. Browse models and choose what to download. Model size, memory use, and speed depend on your hardware. CHAT AND CREATE Ask questions, write, work with code, save snippets, and export conversations. Use camera or photo input with a compatible vision model, or use built-in OCR without downloading a vision model. Voice conversations use local Apple speech by default, with optional downloadable neural voices. Compatible image models support local image generation, which can be restricted with a parental PIN. YOU CHOOSE THE CONNECTIONS Local inference uses installed models. Network features are optional: model discovery and downloads, web search, paired Mac tools, a local API, and iCloud sync. Web providers may receive the queries or content you choose to send and may require their own API account. No app account is required for local use; there is no analytics SDK. REQUIREMENTS Requires iOS 18 or later. Downloadable models need storage and sufficient available memory. The app may pause or refuse heavy workloads when the device is too hot or memory is low. Model compatibility and performance vary by device.
Screenshots
Verdict
The clearest difference is price: OnDevice at Free against Web Development SDK's $9.99. OnDevice also leads on update cadence (every 3 days vs every 4 months) and chart position (#93 vs unranked). Web Development SDK's advantage is device support (3 vs 1). On ads, in-app purchases 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
OnDevice is free to download; Web Development SDK costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Web Development SDK ships an update every 4 months, OnDevice every 3 days. The most recent releases landed on November 8, 2026 and November 12, 2026 respectively.
| Parameter | Web Development SDK | OnDevice |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 4 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Best chart rank | — | #93 — better |
| Devices | iPhone, iPad, Mac — better | iPhone |
| Requires iOS | 18.1 | 18.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 214 MB |
| Age rating | 4+ | 17+ |
| Developer | Lucas Exequiel Di Tomase | MESUT CAN YAGCI |
In-app purchases
Web Development SDK
No in-app purchases
OnDevice
No in-app purchases
Questions
Is Web Development SDK free?
Is OnDevice free?
Do Web Development SDK or OnDevice have ads?
Which is updated more often, Web Development SDK or OnDevice?
Other comparisons















