Comparison

Tester vs OptimumPartner AI

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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

About

OptimumPartner AI

Read full description

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

Tester4 screens
OptimumPartner AI4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard3 real differences · 7 level
Tester versus OptimumPartner AI: the parameters behind the verdict, then further details
ParameterTesterOptimumPartner AI
PriceFreeFree
Rating4.7 (603 ratings) — better—
Positive reviews89.9% of reviews—
Number of ratings603 — better—
Update frequencyEvery 2 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS18.717.0 — better
Further details — not scored
Size77 MB35 MB
Age rating4+4+
DeveloperFJEDIPartner·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

8 purchases

Tester

Subscriptions7
  • Tester Go Weekly$0.997 Days
  • Tester Go Monthly$4.991 Month
  • Tester Plus Monthly$7.991 Month
Show 4 more
  • Tester Pro Monthly$19.991 Month
  • Tester Go Yearly$35.991 Year
  • Tester Plus Yearly$79.991 Year
  • Tester Pro Yearly$200.001 Year
One-time1
  • Tester Plus Lifetime$89.99
None

OptimumPartner AI

No in-app purchases

Questions

Is Tester free?
Tester is free to download, with in-app purchases available.
Is OptimumPartner AI free?
OptimumPartner AI is free to download, with no in-app purchases.
Do Tester or OptimumPartner AI have ads?
Neither Tester nor OptimumPartner AI shows ads.
Which is updated more often, Tester or OptimumPartner AI?
Tester ships an update every 2 days, and OptimumPartner AI every 2 weeks. Most recently, Tester was updated on November 11, 2026 and OptimumPartner AI on November 9, 2026.

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