Comparison

Pry JSON Viewer vs Aligner Tracker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Pry JSON Viewer

Features
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Here's the iOS version: Pry — Native JSON Viewer for iPhone & iPad Pry is a fast, lightweight JSON viewer built natively for iOS. No web views, no compromises — just a native binary that launches instantly and handles your JSON with zero overhead. Paste and Explore Paste any JSON from your clipboard and immediately see it rendered as a collapsible tree. Keys are bold, values are color-coded by type: strings in green, numbers in blue, booleans in orange, and null in gray. Arrays and objects show their item count at a glance. Navigate with Ease Tap any node to expand or collapse it. Pinch-to-zoom and smooth scrolling make it easy to work through deeply nested structures. Nested objects and arrays display with clear indentation and matching closing brackets. Expand all or collapse all with a single tap from the toolbar. Search Across Keys and Values Tap the search icon to instantly filter across all keys and values. Match count updates in real time as you type, and previous/next buttons let you jump between results. Built for Developers Pry shows node count, byte size, and parse time at a glance. Long-press context menus let you copy keys, values, and paths. JSONPath display (e.g. $.data.users[0].name) gives you precise navigation. Long strings are truncated to keep the view clean. Open JSON files directly from the Files app, Safari, or any app that shares .json files. Fast by Design Pry is compiled to a native binary using the Perry framework — TypeScript compiled directly to machine code. It launches instantly, parses JSON in under 1ms, and uses minimal memory. No runtime, no interpreter, no garbage collector.

About

Aligner Tracker

Features
Read full description

Aligner Tracker helps clear-aligner and retainer wearers stay on track and finish treatment on time. It's simple, private, and works completely offline. WEAR-TIME TIMER • One big tap to start or pause wear tracking • Live session timer plus today's running total • A smooth circular progress ring toward your daily goal (default 22 hours) • Keeps counting accurately even if you close the app, and correctly splits time across midnight DAILY LOG & STREAKS • Color-coded calendar showing every day's wear time at a glance — green (goal met), yellow (close), red (missed) • Weekly and monthly averages • A streak counter for consecutive days that hit your goal ALIGNER CHANGE CYCLE • Set your current tray, total trays, and change interval (typically 7–14 days) • See the days remaining and a countdown to your next change right on the home screen • Local reminders the day before and on change day — each at a time you choose PHOTO DIARY • Snap a smile photo every time you switch trays • Each entry is auto-stamped with the date, tray number, and treatment day • Browse a timeline gallery, open any entry full screen, and export as PDF WIDGETS • Home Screen and Lock Screen widgets show today's wear time, your tray number, and days until the next change — without opening the app PRIVATE BY DESIGN • 100% offline — no account, no ads, no tracking • All data stays on your device; export anytime as JSON • Full English and Simplified Chinese support Start tracking today and give your smile the consistency it needs.

Screenshots

Pry JSON Viewer3 screens
Aligner Tracker3 screens

Verdict

The call

The clearest difference is device support: Pry JSON Viewer at 3 against Aligner Tracker's 1. On price, ads, in-app purchases and iOS requirement there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference Ā· 5 level
Pry JSON Viewer versus Aligner Tracker: the parameters behind the verdict, then further details
ParameterPry JSON ViewerAligner Tracker
PriceFreeFree
Update frequency—Every 6 weeks
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, Mac — betteriPhone
Requires iOS17.017.0
Further details — not scored
Size49 MB3 MB
Age rating4+4+
DeveloperSkelpo GmbHFeiyu Chang

In-app purchases

None

Pry JSON Viewer

No in-app purchases

None

Aligner Tracker

No in-app purchases

Questions

Is Pry JSON Viewer free?
Pry JSON Viewer is free to download, with no in-app purchases.
Is Aligner Tracker free?
Aligner Tracker is free to download, with no in-app purchases.
Do Pry JSON Viewer or Aligner Tracker have ads?
Neither Pry JSON Viewer nor Aligner Tracker shows ads.

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