Comparison

Fastly Observe vs Silk Script Runner

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Fastly Observe

Features
Read full description

Bring the power of the Fastly edge cloud platform directly to your mobile devices. The Fastly app empowers developers, DevOps engineers, and Site Reliability teams with on-the-go access to real-time observability and customizable alerting. Whether you are monitoring real-time traffic spikes, checking on your Observability or Security profiles, or verifying a successful deployment, Fastly mobile ensures you maintain full visibility and control over your edge workloads. Key Features - Comprehensive Observability: View top-level 24-hour metrics, hit ratios, and recent account activity. Dive deeper into week-over-week Request, Bandwidth, and Error Ratio trends. - Detailed Insights: Access your customized Domain and Origin Inspectors, tail Live Logs for Compute services, and view your saved Custom Dashboards natively on your device. - Simple Service Management: Search and monitor all your active Fastly services. - Real-Time Alerting: Fully customize your push notifications to stay informed on what matters most. Toggle alerts for firing incidents, resolved alerts, and upcoming maintenance events directly via the app. - Global Network Status: Track real-time global network availability and review historical incident post-mortems natively in the app's dedicated Status tab. The Fastly app is a Fastly “Service” subject to our Terms of Service (https://www.fastly.com/terms) and Privacy Policy (https://www.fastly.com/privacy)

About

Silk Script Runner

This app provides a straightforward environment for writing, running, and exploring scripts on mobile devices. It offers a beginner-friendly syntax similar to Python, allowing users to learn programming, test ideas, and build simple applications and games.

Highlights
  • Write simple, readable scripts
  • Beginner-friendly programming syntax
  • Run examples and built-in demos
  • Build lightweight GUI games
  • Test ideas quickly
  • Focus on logic over complexity
Features
Read full description

Silk Script Runner is a simple way to write, run, and explore scripts on iPhone and iPad. If you like the clarity and ease of Python, Silk offers a similarly approachable way to learn programming, experiment with ideas, and build useful scripts quickly. The syntax is clean, the workflow is direct, and the app lets you write and run code on your device. With Silk Script Runner, you can: Write simple and readable scripts Learn programming with beginner-friendly syntax Run examples and explore built-in demos Build lightweight GUI games and programs Test ideas quickly without a heavy setup Silk is made for students, beginners, hobbyists, and anyone who wants a straightforward coding experience. Whether you are learning your first programming language or looking for a simple scripting tool, Silk helps you focus on logic instead of complexity. Simple like Python. Lightweight like a script. Easy to start.

Screenshots

Fastly Observe4 screens
Silk Script Runner4 screens

Verdict

The call

The clearest difference is iOS requirement: Silk Script Runner at 16.6 against Fastly Observe's 26.0. On price, ads, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 8 level
Fastly Observe versus Silk Script Runner: the parameters behind the verdict, then further details
ParameterFastly ObserveSilk Script Runner
PriceFreeFree
Rating—4.0 (1 ratings) — better
Number of ratings—1 — better
Update frequency—Fortnightly
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.016.6 — better
Further details — not scored
Size10 MB7 MB
Age rating4+4+
DeveloperFastly, Inc.静俐 张

In-app purchases

None

Fastly Observe

No in-app purchases

None

Silk Script Runner

No in-app purchases

Questions

Is Fastly Observe free?
Fastly Observe is free to download, with no in-app purchases.
Is Silk Script Runner free?
Silk Script Runner is free to download, with no in-app purchases.
Do Fastly Observe or Silk Script Runner have ads?
Neither Fastly Observe nor Silk Script Runner shows ads.

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