DevKit vs Logoseed
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DevKit
This app provides a suite of offline developer tools for formatting, debugging, encoding, and converting data. It keeps all your work on your device, ensuring privacy and accessibility without an internet connection. Features include JSON formatting, JWT decoding, hash generation, and QR code creation.
- 30+ offline developer utilities
- JSON, HTML, CSS, JS, XML, SQL formatting
- JWT decoding and certificate inspection
- Base64, URL, and HTML encoding/decoding
- Hash generation (MD5, SHA-256)
- Timestamp and number base conversion
- QR code generation
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Convert files and debug code in one app. DevKit turns PDFs into editable Word documents, photos into PDFs and HEIC photos into JPGs, and gives developers a full kit of formatters, decoders and generators. Everything runs on your iPhone or iPad: your files are never uploaded. FILE TOOLS > PDF to Word: Turn a PDF into an editable Word document (.docx), keeping headings, lists, links, images, headers and footers. Preview the result before you save it. Scanned pages are read with on-device text recognition. Tables are kept on iOS 26 and later. > JPG to PDF: Combine photos and scans into one tidy PDF > HEIC to JPG: Turn iPhone photos into JPGs for forms and websites > MOV to MP4: Turn .mov videos into .mp4 files > HTML Viewer: Open .html files safely and see their source > JSON, XML and CSV Viewers: Open data files as a tree or a table > Unzip and Zip Files: Open .zip archives, or bundle files into one > Open files straight from the Files app, Mail or Safari, and find everything you convert in the Files tab FORMATTERS > JSON Formatter: Format, minify and validate JSON, with a collapsible tree view > HTML, CSS, JavaScript, XML and SQL Formatters ENCODE & DECODE > JWT Debugger: Decode tokens, inspect headers and claims, verify signatures > Certificate Decoder: Read X.509 certificates > Base64, URL Encoder and Parser, HTML Encoder, Backslash Escape > Hash Generator: MD5, SHA-1, SHA-256 and SHA-512 CONVERTERS > Timestamp, Case Converter, Color Converter (HEX, RGB, HSL) > YAML to JSON, CSV to JSON, Number Base, Hex to Text > Cron Parser: Read cron expressions in plain English, with the next run times GENERATE & COMPARE > QR Code: Scan codes live with the camera or from a photo, and create your own > UUID and ULID Generator, Random String, Lorem Ipsum > Diff Checker, RegEx Tester, Markdown Previewer, Line Sort, String Inspector MADE FOR YOUR PHONE > History reopens your recent runs, stored only on your device > Paste, copy and share in one tap > Light and dark designs, large text and VoiceOver support > No account and no sign-up PRIVACY The tools process your text and files on your device. DevKit uses analytics to learn which tools are used (never what you put in them); you can turn it off in Profile > Privacy & Data. SUBSCRIPTION DevKit Pro unlocks every tool, as a monthly or yearly auto-renewing subscription. The price for your country is shown in the app before you buy. Eligible new subscribers get a free trial. Payment is charged to your Apple ID account when you confirm the purchase, or when the trial ends. The subscription renews automatically unless you cancel at least 24 hours before the end of the current period. Manage or cancel it in your App Store account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://devkitpro.app/privacy
Logoseed
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Every brand starts as a conversation. Logoseed turns yours into visible direction. Tell the chat what you are building - a bakery, a dev tool, a podcast - and explore logo concepts as they take shape. When you need a nudge, open the inspiration prompts; when a concept clicks, inspect it as a validated SVG preview right inside the conversation and share a crisp PNG snapshot with your team. How the exploration works: - Describe your brand, audience or design goal in plain language - Browse inspiration prompts whenever the blank page stares back - Review concept previews as validated SVG inside the chat thread - Share a high-quality PNG snapshot of any logo you like - Jump to settings, privacy, logs and our other apps from the shell Honest scope: - This is a concept and exploration tool: previews and PNG sharing are in, raw SVG or PDF downloads are not part of this build - The old in-app upgrade screen has been removed; the focus is concepts, inspiration, preview and sharing
Screenshots
Verdict
The clearest difference is price: DevKit at Free against Logoseed's $12.99. Logoseed's advantage is in-app purchases (none vs 2) and update cadence (daily vs every 8 days). On ads, 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
DevKit is free to download; Logoseed costs $12.99 up front. DevKit sells 2 in-app purchases, starting at $9.99 per month. Logoseed asks for nothing beyond the download.
DevKit ships an update every 8 days, Logoseed daily. Both last shipped on November 5, 2026.
| Parameter | DevKit | Logoseed |
|---|---|---|
| Price | Free — better | $12.99 |
| Rating | 5.0 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 8 days | Daily — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 57 MB | 58 MB |
| Age rating | 4+ | 4+ |
| Developer | Alexander Herdt | 军军 张 |
In-app purchases
DevKit
- Pro Monthly3 Days trial$9.991 Month
- Pro Yearly3 Days trial$39.991 Year
Logoseed
No in-app purchases









