Comparison

tldiagram vs DevMate

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

Head to head

JSON, QR, Time & Debug Tools

Free

🛠️ Developer Tools

No ratingsView app →

About

tldiagram

Features

Read full description

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.

About

DevMate

Features

Read full description

DevMate brings common developer utilities into one compact app. Work with QR codes, timestamps, colors, JSON formatting, device information, deep links, and other small tools that are useful during testing, debugging, and daily development. The app is designed to be fast to open and easy to scan, so you can get a quick answer without switching through multiple sites or scripts.

Screenshots

tldiagram4 screens

DevMate4 screens

Verdict

The call

The clearest difference is ads: tldiagram at none against DevMate's shown. On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

tldiagram ships an update every 2 weeks, DevMate weekly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard1 real difference · 5 level

tldiagram versus DevMate: the parameters behind the verdict, then further details
Parameter	tldiagram	DevMate
Price	Free	Free
Update frequency	Every 2 weeks	Weekly — better
Ads	No — better	Yes
In-app purchases	No	No
Devices	iPhone, iPad, iPod — better	iPhone, iPad
Requires iOS	15.0 — better	16.0
Further details — not scored
Size	47 MB	43 MB
Age rating	4+	4+
Developer	mert can cikla	Beijing Chenghan Bowen Education Technology Co., Ltd.

In-app purchases

None

tldiagram

No in-app purchases

None

DevMate

No in-app purchases

Questions

Is tldiagram free?

tldiagram is free to download, with no in-app purchases.

Is DevMate free?

DevMate is free to download, with no in-app purchases.

Do tldiagram or DevMate have ads?

DevMate shows ads; tldiagram does not.

Which is updated more often, tldiagram or DevMate?

tldiagram ships an update every 2 weeks, and DevMate weekly. Most recently, tldiagram was updated on October 25, 2026 and DevMate on October 24, 2026.