Tester vs OptimumPartner AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tester
This app empowers developers to manage API requests and code tasks on the go. It supports various protocols, offers a powerful GraphQL editor, and includes tools for WebSocket testing and request management. Integrations with Shortcuts and Widgets enhance its utility.
- Handles REST, GraphQL, WebSocket, SOAP, and other API protocols
- Powerful GraphQL editor with query, mutation, and subscription support
- WebSocket testing tool for WS and WSS connections
- API calls with various data encoding and transfer types
- Import requests from curl, links, or files (Swagger, OpenAPI, Postman)
- Apple Watch app for sending API requests from your wrist
- Integrations with Shortcuts and Widgets
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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
OptimumPartner AI
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OptimumPartner AI is an app for Clients to refine their AI projects with us. It acts as a hub for managing and refining customized AI models — built for creators, developers, and entrepreneurs. With a sleek, native SwiftUI design, the OptimumPartner AI App connects you directly to an expert AI Tuner, to oversee your app's AI development and fine-tuning projects from beginning to end.
Screenshots
Verdict
The clearest difference is in-app purchases: OptimumPartner AI at none against Tester's 8. Tester's advantage is update cadence (every 2 days vs every 2 weeks) and device support (3 vs 1). On price, ads 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
Both are free to download. Tester sells 8 in-app purchases, starting at $0.99 per 7 days. OptimumPartner AI asks for nothing beyond the download.
Tester ships an update every 2 days, OptimumPartner AI every 2 weeks. The most recent releases landed on November 11, 2026 and November 9, 2026 respectively.
| Parameter | Tester | OptimumPartner AI |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (603 ratings) — better | — |
| Positive reviews | 89.9% of reviews | — |
| Number of ratings | 603 — better | — |
| Update frequency | Every 2 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone |
| Requires iOS | 18.7 | 17.0 — better |
| Further details — not scored | ||
| Size | 77 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | FJEDI | Partner·AI |
Bugs and 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
OptimumPartner AI
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Tester
- Tester Go Weekly$0.997 Days
- Tester Go Monthly$4.991 Month
- Tester Plus Monthly$7.991 Month
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- Tester Pro Monthly$19.991 Month
- Tester Go Yearly$35.991 Year
- Tester Plus Yearly$79.991 Year
- Tester Pro Yearly$200.001 Year
- Tester Plus Lifetime$89.99
OptimumPartner AI
No in-app purchases









