HelvetiKit vs API Widget
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HelvetiKit
A fast, on-device toolbox for developers, offering QR code generation and scanning, color conversions, JSON formatting, JWT decoding, and various text manipulation tools. It prioritizes speed and privacy with an intuitive interface for everyday development tasks.
- QR code generation and scanning
- Color format conversion (HEX, RGB, HSL)
- JSON pretty-printing, minifying, and validation
- JWT decoding
- Text case conversion
- UUID generation
- Hashing (MD5, SHA-1/256/512)
- Base64 / URL encoding/decoding
- Timestamp conversion
- Regex testing and replacement
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HelvetiKit is a clean, fast, on‑device toolbox for everyday development tasks. No web round‑trips, no clutter — just the utilities you reach for all the time, in one place. What you can do • QR Tools – Generate high‑quality QR codes from any text or URL – Scan with the camera or import photos to decode existing codes – Save generated QR images to your Photos • Color – Convert between HEX ⇄ RGB ⇄ HSL – Pick colors with the system color picker and copy code snippets (SwiftUI/UIColor) • JSON – Pretty‑print, minify, validate – Sort keys, handle fragments, and even normalize curly quotes • JWT Decode – Safely decode header/payload (Base64URL) – Pretty‑printed JSON when available • Text Case – camelCase, PascalCase, UPPERCASE, lowercase • UUID – Generate v4 UUIDs in bulk • Hash – MD5, SHA‑1/256/512 from any input • Base64 / URL Encode – Encode/Decode with sensible defaults • Timestamp – Convert Unix timestamps ⇄ Date (ms supported) • Regex – Test and replace with instant feedback Designed for speed and privacy • On‑device: Your input stays on your device; nothing is uploaded. • Thoughtful UI: Compact layout, keyboard‑friendly editing, copy helpers. • iPhone + iPad: Landscape support and adaptive layouts. • Localization: English and Simplified Chinese. Go Pro (optional) Unlock unlimited runs when you need heavy use. HelvetiKit remains fully usable for quick tasks in the free tier. We’re actively improving HelvetiKit — if there’s a converter or utility you’d love to see, let us know!
API Widget
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API Widget lets you display your own JSON data as customizable iOS widgets on your Home Screen. The app works with a data source you provide and presents the information as a clean, read-only widget. Widgets are updated automatically based on the refresh intervals supported by iOS, making API Widget suitable for monitoring metrics, counters, and status values. You can choose from multiple visual themes to match your style and focus on the information that matters most. API Widget does not require user accounts and does not collect personal information. The app is intended for informational and monitoring purposes only.
Screenshots
Verdict
The clearest difference is in-app purchases: API Widget at none against HelvetiKit's 1. On price, 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
Both are free to download. HelvetiKit sells 1 one-off in-app purchase. API Widget asks for nothing beyond the download.
| Parameter | HelvetiKit | API Widget |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.5 | 17.6 — better |
| Further details — not scored | ||
| Size | 3 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | 阳 张 | Valery Shklovskiy |
In-app purchases
HelvetiKit
- Pro User$0.99
API Widget
No in-app purchases









