SendMan vs Diff Checker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SendMan
This tool allows developers to build, test, and monitor APIs from any location. Organize requests, save collections, and debug efficiently by comparing responses and inspecting payloads.
- Build and test APIs
- Monitor API performance
- Organize requests and collections
- Switch between environments
- Run requests in sequence
- Compare responses
- Inspect headers and payloads
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SendMan is a full-featured API client for iPhone and iPad — build, send, and test HTTP requests anywhere, without opening your laptop. Debug a REST endpoint on the train, test a GraphQL query between meetings, or inspect a live WebSocket: SendMan puts a complete API testing toolkit in your pocket. Built natively for iOS, it's fast, works offline, and is made for developers, QA engineers, and mobile teams who need real API tooling on the go. BUILD & SEND REQUESTS - Full HTTP request builder — GET, POST, PUT, PATCH, DELETE & more - Add headers, query params, and request bodies in seconds - Reuse {{environment}} variables across URL, headers, params & body - Write tests and validate responses automatically - Generate ready-to-use code from any request ORGANIZE YOUR WORK - Save and group requests into Collections - Switch between multiple Environments and configurations - Full request History with status codes and response times - Instant search across everything GO BEYOND REST - GraphQL — run queries, mutations, and subscriptions - WebSocket — test real-time connections live - Traffic Capture — intercept and inspect HTTP/HTTPS traffic in real time - Monitor — run requests on a schedule and watch performance DEVELOPER TOOLS - Mock Data — auto-generate realistic JSON to test your APIs - JSON Diff — compare two responses and spot every change instantly - Dashboard with success, failure, and average response-time metrics - Response insights, charts, and performance tracking FULL REQUEST CONTROL - Fine-tune timeouts, max response size, and HTTP version - Toggle SSL certificate verification for self-signed certs - SSL/TLS key logging for deep debugging - Light & dark themes plus custom color palettes PRIVATE BY DESIGN Your requests, history, and data stay on your device. SendMan works offline and never sits between you and your APIs. Privacy Policy: https://sendman.netlify.app/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Diff Checker
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Compare two versions of any text and see exactly what changed — line by line and word by word, highlighted the instant you paste. Most "spot the difference" attempts end in squinting at two walls of text side by side. DiffCheck does the reading for you: paste an old version and a new one, and every addition turns green, every deletion turns red, so the change jumps out in a second. It works on code, config files, contracts, and plain prose alike — and it never sends a single character off your device. WHAT YOU GET - See every change at a glance — additions in green, deletions in red, nothing missed - Switch between line-level and word-level diffs to catch even a single edited character - Read changes in a clean side-by-side split view that lines the two versions up - Copy a ready-to-use unified patch of any comparison straight to your clipboard - Keep a local history of past comparisons so you can revisit what changed and when - Save reusable snippets and sample diffs to compare the same text again fast PERFECT FOR - Developers reviewing code, pull requests, and config changes on the go - Writers and editors checking edits between two drafts - Legal and business users comparing contract or document revisions - Students learning how diffs and the unified patch format work WHY NOT JUST EYEBALL IT Reading two versions by hand is where mistakes hide — a flipped number, a deleted clause, a changed flag. DiffCheck compares them character by character so you catch the change you would have scrolled right past. PRIVACY Your text never leaves your device. There are no accounts, no servers, and no tracking — every comparison happens fully offline. FULL ACCESS DiffCheck is free to compare text. Full Access unlocks word-level diffs, the side-by-side split view, saved comparison history, and unified patch export. Choose the plan that fits: - Weekly plan - Yearly plan - Lifetime one-time purchase Payment is charged to your Apple ID at confirmation of purchase. Subscriptions auto-renew unless turned off at least 24 hours before the end of the current period; manage or cancel anytime in your App Store settings. The lifetime option is a one-time purchase. Paste two versions now and see what changed in a second. Terms of Use (EULA): https://web-levi.web.app/terms Privacy Policy: https://web-levi.web.app/privacy-policy Questions? https://web-levi.web.app/#contact
Screenshots
Verdict
The clearest difference is update cadence: SendMan at every 2 weeks against Diff Checker's every 2 months. SendMan also leads on device support (4 vs 1) and iOS requirement (13.0 vs 17.0). On price, ads and in-app purchases 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. SendMan sells 2 in-app purchases, starting at $1.99 per month and Diff Checker sells 2 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.
SendMan ships an update every 2 weeks, Diff Checker every 2 months. The most recent releases landed on September 2, 2026 and September 8, 2026 respectively.
| Parameter | SendMan | Diff Checker |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 61 MB | 5 MB |
| Age rating | 12+ | 4+ |
| Developer | Mohammad Imran Mia | Phuc Pham |
In-app purchases
SendMan
- Remove Ads (Monthly)$1.991 Month
- Remove Ads (Yearly)$9.991 Year
Diff Checker
- Weekly$2.997 Days
- Yearly$14.991 Year









