Source 3 vs Tester
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Source 3
View the HTML source code of any webpage directly within Safari. This app offers customizable syntax highlighting for a better developer experience on iOS devices.
- View HTML source code
- Safari extension integration
- Customizable syntax highlighting
- Easy access via Action icon
- Supports iPhone and iPad
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Source is an app plus a Safari extension that makes it easy to do one key web developer task: view the HTML source of any web page, with beautiful and customisable syntax highlighting. Just browse the web in Safari as you normally would, and if you want to view the source for your current page just tap the Action icon and choose Source. The following steps show you how to get extensions to enhance your browsing experience in Safari on iOS 15. Settings app → Safari → Extensions → toggle on the app or settings.
Tester
Test various APIs directly from your mobile device. Supports REST, GraphQL, WebSockets, and more, with advanced editors and request customization. Share requests easily and manage cookies and history.
- Test REST, GraphQL, WebSocket, SOAP, JSON RPC, XML, HTTP, HTTPS APIs
- Powerful GraphQL editor with query, mutation, subscription support
- WebSocket testing tool for WS and WSS connections
- Flexible request data encoding and transfer types
- Import requests from curl, links, or files (Swagger, OpenAPI, Postman)
- One-tap request sharing via deep link or cURL command
- Apple Watch app for sending requests from your wrist
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The first mobile app to handle any developer task on the go. Main features: - REST, GraphQL, WebSocket, SOAP, JSON RPC, XML, HTTP, HTTPS, etc. - All types of HTTP requests: GET, POST, PUT, PATCH, DELETE, HEAD, OPTIONS, COPY, LINK, UNLINK, PURGE, LOCK, UNLOCK, PROPFIND, VIEW. - Powerful GraphQL editor with full-scale experience: body editor with Queries, Mutations, Subscriptions and syntax support; variables editor; documentation explorer; request settings and metadata. - WebSocket testing tool. Handles connection and message exchange via WS or WSS. - API calls with any kind of request data encoding and transfer type (query params, URLEncoded params, FormData, raw data, send files from device storage, cloud, remote server). - Settings. TLS can be skipped, redirects can be disabled, timeouts are adjustable. Weak SSL verification can be enabled and replaced with self-signed certificate. - Import request or collection by curl, link or file from your device. And naturally, there is any type of collection for you: Swagger, OpenAPI, Postman, YAML. - Need to share request in seconds? Deep link and cURL command supported. - Apple Watch app. Allows to send API requests directly from your wrist. - Integrations: Shortcuts, Widgets. Additional little things: - Autocomplete for most common headers keys. - Syntax highlighting; Auto formatting. - Optimized for viewing on any device screen. - Cookies. Collect, edit, create. - Request metrics. Measure request duration, response size, status code changing. - History of all request calls. - Request authorisation. Basic Auth with password and username. OAuth with header or query access token. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://tester.io/privacy-policy
Screenshots
Verdict
The clearest difference is review sentiment: Tester at 90% against Source 3's 44%. Tester also leads on price (Free vs $0.99) and update cadence (every 2 days vs every 2 months). Source 3's advantage is in-app purchases (none vs 6). On ads, chart position, device support 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
Tester is free to download; Source 3 costs $0.99 up front. Tester sells 6 in-app purchases, starting at $0.99 per month. Source 3 asks for nothing beyond the download.
Tester holds the better App Store score, 4.7 against 4.3. That said, the two scores are not equally well evidenced: Tester has 574 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 44% of Source 3's written reviews are positive against 90% of Tester's.
Source 3 ships an update every 2 months, Tester every 2 days. The most recent releases landed on September 24, 2026 and September 27, 2026 respectively.
| Parameter | Source 3 | Tester |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.3 (10 ratings) | 4.7 (574 ratings) — better |
| Positive reviews | 43.8% of reviews | 89.8% of reviews — better |
| Number of ratings | 10 | 574 — better |
| Update frequency | Every 2 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free — better |
| Best chart rank | #68 — better | #185 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 1 MB | 76 MB |
| Age rating | 4+ | 4+ |
| Developer | Street Coder LLC | FJEDI |
Customer experience
Source 3
Tester
Bugs and requests
Source 3
Not enough reviews yet to summarise bugs or requests.
Tester
Reported bugs
3 issues- Deleting all saved requests after updates
- App launching to a black screen
- Shortcuts integration not working as expected
Requested features
5 requests- Add support for environment variables
- Implement folders/collections management
- Allow exporting/importing data as JSON
- Provide more Shortcuts actions
- Add ability to change app icon
In-app purchases
Source 3
No in-app purchases
Tester
- Tester Go Monthly$0.991 Month
- Tester Plus Monthly1 Month trial$4.991 Month
- Tester Pro Monthly$15.001 Month
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- Tester Plus Yearly$35.991 Year
- Tester Pro Yearly$149.001 Year
- Tester Plus Lifetime$89.99
