Comparison

D520 vs BBStelnet

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

Head to head
About

D520

Features
Read full description

起重機荷重保護 產品特性: ● 顯示型荷重超載限制器可對起重設備進行顯示和警報,當起吊物品時,傳感器產生變形,顯示型荷重超載限制器可以指 示出載荷的數值。 ● 高亮度紅色LED顯示螢幕 ● 重量過載異常時,蜂鳴器會發出警示音提醒操作人員,增強安全性。 ● 當重量超過額定負重時,超載控制器會自動切斷起升機構的動力源,避免事故發生

About

BBStelnet

Features
Read full description

BBStelnet — A minimalist BBS terminal designed exclusively for iPhone. Built with native SwiftUI for fluid performance and excellent battery efficiency. [Supported Servers] • PTT — secure WebSocket (WSS) connection • Bahamut, Hua Kui, and any Telnet / WebSocket BBS • Custom host / port; save multiple servers and accounts [Full Chinese Support] • Dual BIG5 / UTF-8 encoding with built-in Big5-UAO character mapping (25,916 characters) • Built-in Bopomofo (Zhuyin) input method with familiar key layout • Clean rendering of PTT push messages, posts, and mail — no garbled text [Reading Experience] • 14 ambient sounds (rain, waves, thunderstorm, waterfall, campfire, and more) for immersive reading • Full 16-color ANSI palette customization • Adjustable font family and size • Portrait / landscape rotation [Productivity Tools] • Floating keyboard for one-tap BBS commands • Quick Keys with cross-page paging, sorting, and grouping — kaomoji, arrow keys, and edit commands all included • Auto-login scripts and keep-alive (no idle disconnects) • Automatic URL detection in articles; built-in pinch-zoom image viewer [BBStelnet Pro — One-time purchase, unlocks forever] • Permanently remove ads (banner + interstitial) • Unlock 10 additional ambient sounds • Data export / import — back up sites, quick keys, and floating keyboard layouts in one tap Also available as consumable add-ons: Quick Key +10 cells, Station +5 slots — purchase as needed. Actively maintained by the developer. Welcome to all BBS enthusiasts and longtime PTT users.

Screenshots

D5202 screens
BBStelnet4 screens

Verdict

The call

The clearest difference is in-app purchases: D520 at none against BBStelnet's 3. D520 also leads on ads (none vs shown) and iOS requirement (11.0 vs 17.6). BBStelnet's advantage is update cadence (every 9 days vs every 4 months). On price 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. BBStelnet sells 3 one-off in-app purchases. D520 asks for nothing beyond the download.

UpkeepUpdate frequency

D520 ships an update every 4 months, BBStelnet every 9 days. The most recent releases landed on October 29, 2026 and October 9, 2026 respectively.

Scorecard4 real differences · 2 level
D520 versus BBStelnet: the parameters behind the verdict, then further details
ParameterD520BBStelnet
PriceFreeFree
Update frequencyEvery 4 monthsEvery 9 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
DevicesiPhone, iPod — betteriPhone
Requires iOS11.0 — better17.6
Further details — not scored
Size8 MB12 MB
Age rating4+17+
DeveloperSYSCODE INTERNATIONAL INC.Hsu Chia-cheng

In-app purchases

None

D520

No in-app purchases

3 purchases

BBStelnet

One-time3
  • Quick Key Cells +10$0.99
  • Station Slots +5$0.99
  • BBStelnet Pro$9.99

Questions

Is D520 free?
D520 is free to download, with no in-app purchases.
Is BBStelnet free?
BBStelnet is free to download, with in-app purchases available.
Do D520 or BBStelnet have ads?
BBStelnet shows ads; D520 does not.
Which is updated more often, D520 or BBStelnet?
D520 ships an update every 4 months, and BBStelnet every 9 days. Most recently, D520 was updated on October 29, 2026 and BBStelnet on October 9, 2026.

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