Hey Why vs tldiagram
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Hey Why
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Hey Why is a lightweight SQL EXPLAIN viewer for developers. Run EXPLAIN on your MySQL database or paste EXPLAIN JSON to see why your query behaves the way it does. • Explore execution plans by depth • Instantly see full scans, filesort, and temporary tables • Built for quick discussions without a laptop • Local-only. No cloud. No tracking.
tldiagram
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Software system-architecture diagramming app that helps engineering teams design, debug, and communicate complex distributed systems. tldiagram makes it easy to create nested views of a complex system with higher detail as you go deeper that can be zoomed in and out to give you the context you need without the noise.
Screenshots
Verdict
The clearest difference is iOS requirement: tldiagram at 15.0 against Hey Why's 17.6. On price, ads, in-app purchases and 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Hey Why | tldiagram |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 17 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | JONGMIN CHOI | mert can cikla |
In-app purchases
Hey Why
No in-app purchases
tldiagram
No in-app purchases
