Timestamp Conversion Tool vs Json Genie
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Timestamp Conversion Tool
Easily convert between date/time and UNIX timestamps. Customize formats, time zones, and locations for accurate comparisons. Ideal for developers and debugging.
- Date and time to UNIX timestamp conversion
- UNIX timestamp to date and time conversion
- Customizable date and time formats
- Easy time zone and location setting
- Supports multiple countries' formats and time differences
- Ad-free experience
Read full descriptionHide full description
This application converts between date and time and UNIX time. Any number of date and time formats can be freely set. TimeZone and Locate can also be set easily, so you can easily check formats and time differences of other countries. Please use it for application development and debugging. ※Unlike the free version, no ads will be displayed.
Json Genie
This app provides a fast and private way to view, edit, compare, and merge JSON files directly on your device. It offers a clear tree structure for browsing, powerful search capabilities, and formatting options without needing an account or cloud upload.
- View JSON in a tree structure
- Edit JSON data safely
- Compare JSON files
- Merge JSON files
- Search keys, values, and paths
- Format and minify JSON
- Private local workflow
Read full descriptionHide full description
Json Genie is a fast, private JSON viewer, editor, formatter, merger and compare tool for iPhone and iPad. Open JSON and JSONC files, view them in a clean tree structure, search keys and values, edit data, compare differences, merge files, pretty-print, minify and share the result. No account. No cloud upload. Your JSON files stay on your device. Built for practical JSON work on mobile, Json Genie helps you open a file, understand its structure, make changes safely and move on. View JSON clearly Turn raw JSON into a readable object and array tree view. Browse nested objects, arrays, strings, numbers, booleans and null values without losing your place. Open JSON from anywhere Use Json Genie as a JSON file opener for files on your device, pasted text, shared content, URLs and supported archives. Open .json and JSONC files from Files, Mail, cloud storage apps, copied JSON text or ZIP archives. Edit JSON without broken syntax Edit JSON files without manually fixing commas, brackets or quotes. Change strings, numbers, booleans and null values. Add, edit, clone, delete, move and reorder objects, arrays and values while keeping the structure clear. Compare JSON files Pick two JSON files or open tabs and see what changed. Inspect differences in objects, arrays and values without copying private data into an online JSON diff tool. Merge JSON files Combine JSON files directly on your iPhone or iPad. Review the merge summary, inspect the result, then save or share the merged JSON. Useful for config files, exported data, API responses, backups and test files. Find what matters fast Search JSON keys, values and paths across your document. Jump to matching results, inspect the surrounding structure and return without losing your place. Smart filters like id: 3, game.id: 3 or city: "Austin" help you find specific data faster. Format, minify and export JSON Use Json Genie as a JSON formatter when you need cleaner output, compact JSON, sorted keys or a readable structure before saving or sharing. Pretty-print JSON, beautify JSON, minify JSON, sort keys, share as text or file, or switch to raw text view when needed. Private local JSON workflow Json Genie opens, views, edits, searches, compares, merges and formats JSON directly on your iPhone or iPad. Your files are not uploaded to our servers just to inspect, edit or clean them up. Fast with small and large JSON files Json Genie is built for speed and clarity, from small JSON snippets to large, deeply nested documents. What you can do with Json Genie • Open JSON, JSONC and supported ZIP archives • View JSON in a clean tree view • Compare JSON files and open tabs • Merge JSON files and review the result • Search keys, values and paths • Use smart search filters such as id: 3 or game.id: 3 • Edit strings, numbers, booleans, nulls, objects and arrays • Add, delete, clone, move and reorder JSON entries • Open multiple JSON files in tabs • Copy and reuse entries with paste history • Pretty-print, beautify, minify and sort JSON keys • Share JSON as formatted text or as a file • View raw JSON text when needed Useful for real-world JSON work Json Genie is useful for developers, testers, students, support teams, power users and anyone who needs to open, inspect, edit, compare, merge or format JSON files on iPhone or iPad. Use it for API responses, configuration files, exported data, JSON attachments, logs, test data, backups, app data and other structured files you need to read, combine or clean up. Free and Premium Json Genie is free to use. Premium is optional and removes ads, expands file and tab limits, increases history and unlocks extra themes.
Screenshots
Verdict
The clearest difference is price: Json Genie at Free against Timestamp Conversion Tool's $1.99. Json Genie also leads on update cadence (every 10 days vs every 38 months) and ratings volume (3 vs 1). Timestamp Conversion Tool's advantage is rating (5.0 vs 4.3) and in-app purchases (none vs 1). On device support 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
Json Genie is free to download; Timestamp Conversion Tool costs $1.99 up front. Json Genie sells 1 one-off in-app purchase. Timestamp Conversion Tool asks for nothing beyond the download.
Timestamp Conversion Tool holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 1 and 3 respectively.
Timestamp Conversion Tool ships an update every 38 months, Json Genie every 10 days. The most recent releases landed on September 10, 2026 and September 9, 2026 respectively.
| Parameter | Timestamp Conversion Tool | Json Genie |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | 4.3 (3 ratings) |
| Number of ratings | 1 | 3 — better |
| Update frequency | Every 38 months | Every 10 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 11 MB | 58 MB |
| Age rating | 4+ | 4+ |
| Developer | Kosei Suzuki | Tommy Uytterhaegen |
Customer experience
Timestamp Conversion Tool
Json Genie
In-app purchases
Timestamp Conversion Tool
No in-app purchases
Json Genie
- Json Genie Premium$3.99





