Seiql vs JSON Formatter Viewer
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Seiql
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Master SQL with Seiql, the premium learning studio built for focus and technical depth. Whether you're writing your first SELECT statement or mastering subqueries, Seiql guides you through structured, hands-on lessons in a refined, professional environment. Progress through 6 comprehensive lessons covering everything from SELECT basics to advanced subqueries. Each lesson walks you through key concepts step by step, then challenges you with practical exercises where you write real SQL. Track your growth with an intelligent XP system, earn badges, build daily streaks, and rise through ranks from Beginner to SQL Master. KEY HIGHLIGHTS: โข Structured SQL Curriculum: 6 progressive lessons โ SELECT Basics, WHERE & Filters, ORDER BY, JOIN Operations, GROUP BY & Aggregation, and Subqueries โ each with educational steps and hands-on exercises. โข Interactive Exercises: Write real SQL to solve problems. Get instant feedback, use hints when stuck, and learn from detailed explanations for both correct and incorrect answers. โข Daily Challenges: A fresh SQL challenge every day to keep your skills sharp and earn bonus XP. โข Intelligent Progress Tracking: Earn XP for every completed exercise, unlock professional badges, maintain daily streaks, and climb through ranks. โข Learning Path Personalization: Tell us your experience level and goals, and Seiql tailors lesson recommendations and focus areas to match your needs. โข Rich Analytics Dashboard: Monitor your weekly activity, topic performance, success rates, and identify areas for improvement. โข Privacy First: All your progress and data stay on your device. No accounts, no servers, no tracking โ your learning journey is yours alone. WHY SEIQL? Most coding apps feel generic and cluttered. Seiql is designed for people who take their database skills seriously โ smooth interactions, a cohesive design system, and a curriculum that actually teaches you to think in SQL, not just memorize syntax. It's the learning companion you'll keep coming back to.
JSON Formatter Viewer
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Paste messy JSON and get clean, readable, correctly indented output in one tap. JSONViewer formats, validates, and beautifies any payload โ right on your iPhone, fully offline. Most JSON tools are websites that make you paste sensitive API data into a stranger's server. JSONViewer keeps everything on your device: paste a response, a config file, or a log export, and it pretty-prints with color syntax highlighting instantly. Invalid JSON is flagged with the exact reason so you fix broken payloads fast โ no guessing, no round trips to a browser. WHAT YOU GET - Clean, indented JSON from any pasted or copied payload in one tap - Instant validation that pinpoints exactly why a payload is broken - Minify mode to strip whitespace down to a compact one-liner - An interactive, collapsible tree so you can read deeply nested data at a glance - JSONPath queries that pull the exact value out of a large response - A saved library of your own snippets plus ready-to-use sample payloads PERFECT FOR - Backend and mobile developers debugging API responses on the go - QA engineers checking payloads and config files away from a laptop - Students learning JSON structure with the built-in Learn guide - Anyone who needs to read or clean a JSON blob without opening a website WHY NOT JUST USE A WEB FORMATTER? Online formatters send your JSON to a remote server โ a real problem when the payload holds tokens, user records, or internal data. JSONViewer does all parsing on-device, so your data never leaves your phone and works with no signal at all. PRIVACY Your JSON never leaves the device. No accounts, no servers, no tracking โ everything runs locally, even in airplane mode. FULL ACCESS The Format tab โ paste, validate, beautify, minify, and copy โ is free. Premium unlocks the interactive tree view, JSONPath query, saved snippet library, and expand/collapse controls. Premium is available as a weekly or yearly subscription, or a one-time lifetime purchase: - Weekly subscription - Yearly subscription - Lifetime (one-time purchase, no renewal) 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 App Store settings. Paste your first payload and clean it up now. 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 in-app purchases: Seiql at none against JSON Formatter Viewer's 2. On price, update cadence, ads and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. JSON Formatter Viewer sells 2 in-app purchases, starting at $3.99 per 7 days. Seiql asks for nothing beyond the download.
Seiql ships an update every 5 weeks, JSON Formatter Viewer every 6 weeks. The most recent releases landed on September 28, 2026 and October 3, 2026 respectively.
| Parameter | Seiql | JSON Formatter Viewer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 weeks โ better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPad โ better | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details โ not scored | ||
| Size | 5 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Umit UZ | Phuc Pham |
In-app purchases
Seiql
No in-app purchases
JSON Formatter Viewer
- Weekly$3.997 Days
- Yearly$19.991 Year









